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524 resultados encontrados para: TEMA: Conducta animal
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1.
Audiovisual
*En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-San Cristóbal, SIBE-Tapachula
Mariposas: mariposario Xcaret. Monarca la leyenda [videocasete] / Gonzalo Infante
Infante, Gonzalo ;
Distrito Federal, México : México Antiguo C/ Producciones , [s.f.]
Clasificación: VC/595.789 / I5
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020008740 (Para consulta)
Disponibles para prestamo: 0
Nota: En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-San Cristóbal, SIBE-Tapachula
Resumen en: Español |
Resumen en español

Mariposario Xcaret. En la selva costera de la Riviera Maya, en una hondonada del parque Xcaret, acompañadas por el murmullo de la cascada de miles de mariposas tropicales se reproducen dentro de uno de los mariposarios mas grandes del mundo.


2.
- Artículo con arbitraje
PDF
Resumen en: Inglés |
Resumen en inglés

The West Indian fruit fly, Anastrepha obliqua (Macquart), is the second most important tephritid fruit fly in Mexico, infesting mango, hog plum and guava fruits. To control this pest, the Mexican government has implemented the use of the sterile insect technique (SIT), which involves the mass production, sterilization and release of flies. However, the A. obliqua laboratory males used in SIT are selected to a lesser extent by the wild females during competitiveness tests. The objective of this study was to compare the effects of males fed on fruit fly food enriched with Providencia rettgeri to those in males fed on food alone, assessing male mating competitiveness, capture of females using traps baited with males fed with the enriched diet and sex pheromone components. The results indicated that males fed with the diet enriched with P. rettgeri had increased mating competitiveness and captured more females in the field cage tests. However, no difference was observed in the proportion of volatile sex pheromone components identified during the calling of A. obliqua males. The results suggest the value of incorporating bacteria into the mass rearing technique of A. obliqua adults in order to improve the sexual competitiveness of males from the laboratory compared to wild males.


3.
Artículo
Moon light and the activity patterns of baird’s tapir in the Calakmul region, Southern Mexico
Sánchez Pinzón, Khiavett Guadalupe (autora) ; Reyna Hurtado, Rafael Ángel (autor) ; Meyer, Ninon France Victoire (autora) ;
Contenido en: Therya Vol. 11, no. 1 (2020), p. 137-142 ISSN: 2007-3364
PDF
Resumen en: Español | Inglés |
Resumen en español

El tapir de Baird (Tapirella bairdii) es una especie amenazada en toda su área de distribución, sin embargo, muchos aspectos de su biología y ecología han sido poco estudiados, debido a su comportamiento evasivo y a sus bajas densidades poblacionales. El objetivo de este estudio fue evaluar los patrones de actividad de T. bairdii en relación con las fases lunares en dos sitios con diferente grado de perturbación humana: la Reserva de la Biosfera de Calakmul (RBC) y el Ejido Nuevo Becal (NB). Se monitorearon 20 cuerpos de agua durante18 meses mediante el método de foto-trampeo. Se determinó la tasa de captura (TC) y se registraron las fases lunares correspondientes para ambos sitios. La TC de T. bairdii tapir fue de 0.054 en NB y de 0.029 en la RBC. T. bairdii fue más activo en el periodo nocturno-crepuscular. En general, T.bairdii. mostro una actividad importante durante las fases de oscuridad, pero estas diferencias no fueron significativas estadísticamente. Sin embargo, se encontró una tendencia de los tapires a moverse activamente en las noches y en las horas más obscuras en NB que en RBC. La preferencia aparente por las noches más obscuras en NB podría ser evidencia de la respuesta por parte de los tapires a la perturbación causada por actividades humanas en ese sitio, mostrando un cambio en su comportamiento evitando salir en periodos de abundante luz en sitios perturbados. Sin embargo, se requiere de mayor investigación para corroborar esta posibilidad.

Resumen en inglés

The Baird’s tapir (Tapirella bairdii) is an endangered species throughout its distribution area, however many aspects of its biology and ecology have been poorly studied, due to its evasive behavior and low densities. The goal of this study was to evaluate the activity patterns of T. bairdii, a large ungulate species from the Neotropics, in relation to moon phases in two sites with different degree of human perturbation: the Calakmul Biosphere Reserve (CBR) and the Nuevo Becal (NB) community. We monitored twenty waterbodies in each site for 18 months using camera traps. The photographic capture rate (CR) and the corresponding moon phases for both sites were recorded. The CR of T. bairdii was 0.054 in NB and 0.029 in CBR. T. bairdii was more active at night and dawn-twilight periods. In general, T. bairdii showed major activity during the dark moon phases but the differences with the light phases were not statistically significant. However, we found a trend of tapirs to be more active in dark nights and in the darkest hours in NB than CBR. The apparent preferences for dark nights in NB could be caused by the perturbation caused by human activities at site, which may have influenced the behavior of the tapir that avoid moving out in periods of abundant light in disturbed sites. More research is needed to confirm this finding.


4.
Artículo
Nest site selection during colony relocation in Yucatan Peninsula populations of the ponerine ants Neoponera villosa (Hymenoptera: Formicidae)
Rocha, Franklin H. (autor) ; Lachaud, Jean Paul (autor) ; Hénaut, Yann (autor) ; Pozo, Carmen (autora) ; Pérez Lachaud, Gabriela (autora) ;
Disponible en línea
Contenido en: Insects Volumen 11, número 3, 200 (March 2020), páginas 1-15 ISSN: 2075-4450
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Resumen en: Inglés |
Resumen en inglés

In the Yucatan Peninsula, the ponerine ant Neoponera villosa nests almost exclusively in tank bromeliads, Aechmea bracteata. In this study, we aimed to determine the factors influencing nest site selection during nest relocation which is regularly promoted by hurricanes in this area. Using ants with and without previous experience of Ae. bracteata, we tested their preference for refuges consisting of Ae. bracteata leaves over two other bromeliads, Ae. bromeliifolia and Ananas comosus. We further evaluated bromeliad-associated traits that could influence nest site selection (form and size). Workers with and without previous contact with Ae. bracteata significantly preferred this species over others, suggesting the existence of an innate attraction to this bromeliad. However, preference was not influenced by previous contact with Ae. bracteata. Workers easily discriminated between shelters of Ae. bracteata and A. comosus, but not those of the closely related Ae. bromeliifolia. In marked contrast, ants discriminated between similar sized Ae. bracteata and Ae. bromeliifolia plants, suggesting that chemical cues and plant structure play an important role. Size was also significant as they selected the largest plant when provided two dissimilar Ae. bracteata plants. Nest site selection by N. villosa workers seems to depend on innate preferences but familiarization with plant stimuli is not excluded.


5.
Artículo
Agalychnis callidryas (Red-eyed Tree Frog) and Trachycephalus typhonius (Veined Treefrog). Reproductive behavior
Nahuat Cervera, Pedro E. (autor) ; Zetina Muñoz, Roger (autor) ; Tun, Geiser (autor) ; López Linares, Brenda A. (autora) ; Cedeño-Vázquez, J.R. (autor) ;
Disponible en línea
Contenido en: Herpetological Review Volume 50, número 3 (2019), p. 545-546 ISSN: 0018-084X
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6.
- Artículo con arbitraje
Comportamiento depredador de dos especies de arañas del género Phonotimpus (Araneae: Phrurolithidae)
Ángulo Ordoñes, Gabriela Guadalupe (autora) ; Dor Roques, Ariane Liliane Jeanne (autora) ; Campuzano Granados, Emmanuel Franco (autor) ; Ibarra Núñez, Guillermo (autor) ;
Contenido en: Acta Zoológica Mexicana. Nueva Serie Vol. 35, e3502061 (2019), p. 1-12 ISSN: 2448-8445
PDF
Resumen en: Español | Inglés |
Resumen en español

Se estudió el comportamiento depredador de dos especies de arañas del género Phonotimpus (Araneae: Phrurolithidae) frente a cuatro tipos diferentes de presas potenciales (un Collembola, dos Hemiptera y un Psocoptera). Estas arañas habitan en la hojarasca del suelo de un bosque de niebla y de un cafetal en Chiapas, México. No existen estudios previos sobre el comportamiento de caza de esta familia de arañas. Debido al reducido tamaño de las arañas, el estudio se realizó en laboratorio, mediante videograbaciones de los encuentros con cada tipo de presa. A partir de las grabaciones se elaboró un catálogo de 16 actos de comportamiento que las arañas presentaron durante los encuentros con las presas, entre los que destacan el de “abanicar” y el de “ataque”. Las grabaciones evidenciaron que ambas especies de arañas tuvieron una capacidad significativamente mayor de ataque y captura de los colémbolos que de los hemípteros y psocópteros, además de presentar un repertorio más variado de actos frente a los colémbolos y, para Phonotimpus pennimani un mayor nivel de actividad durante los encuentros con colémbolos. Así, nuestros resultados son similares a los de otros autores que estudiaron el consumo de presas en laboratorio, por dos especies distintas de Phrurolithidae, indicando que es altamente posible que en su hábitat natural los colémbolos sean parte importante de las presas de las Phrurolithidae. Las grabaciones también mostraron que ambas especies de arañas emplean dos estrategias de caza. Una es la emboscada, donde la araña permanece fija en un sitio por periodos relativamente prolongados, a la espera de la aproximación de una presa potencial, y la otra es la búsqueda activa, en la que la araña recorre activamente su entorno hasta que se topa con una presa potencial. De las dos estrategias, hubo un claro predominio de la emboscada, en cuanto su distribución de tiempos durante los encuentros.

Resumen en inglés

We studied the predatory behavior of two spider species of the genus Phonotimpus (Araneae: Phrurolithidae) when confronted with four different types of potential prey (one Collembola, two Hemiptera and one Psocoptera). These spiders live in the soil leaf litter of a cloud forest and coffee orchards in Chiapas, Mexico. There are no previous studies of the hunting behavior for this spiders’ family. Due to the small size of the spiders, the study was made in laboratory conditions with video recordings of the encounters with each prey type. From the analyses of the video recordings we established a catalog of 16 behavioral acts that the spiders displayed in the encounters with prey, among these we characterized “waving” and “attack”. The recordings showed that both spider species had significant higher aptitudes to attack and capture springtails than hemipterans and psocopterans, the spiders displayed a richer behavioral repertoire when confronted the springtails and, for Phonotimpus pennimani a higher activity level when confronting the springtails. Thus, our results are similar to other studies on prey consumption in laboratory conditions by two different species of Phrurolithidae, pointing as highly possible that, in its natural habitat, springtails are an important part of the prey spectrum of the Phrurolithidae. The recordings also showed that both spider species employ two hunting strategies. One is ambushing, where the spider remains fixed in one place for relatively long periods, waiting for the approach of a potential prey, and the other is active searching, where the spider actively wanders its milieu until it encounters a potential prey. In terms of the distribution of times during encounters, ambushing predominated over active searching.


7.
Artículo
*Solicítelo con su bibliotecario/a
Ecological and social determinants of association and proximity patterns in the fission–fusion society of spider monkeys (Ateles geoffroyi)
Aguilar Melo, Adriana R. (autora) ; Calmé, Sophie (autora) ; Pinacho Guendulain, Braulio (autor) ; Smith Aguilar, Sandra E. (autora) ; Ramos Fernández, Gabriel (autor) ;
Contenido en: American Journal of Primatology Vol. 82, no. 1 (2019), p. 1-15 ISSN: 1098-2345
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Resumen en: Inglés |
Resumen en inglés

Some social species exhibit high levels of fission–fusion dynamics (FFD) that improve foraging efficiency. In this study, we shed light on the way that FFD allows animal groups to cope with fluctuations in fruit availability. We explore the relative contribution of fruit availability and social factors like sex in determining association and proximity patterns in spider monkeys. We tested the influence of fruit availability and social factors on the association and proximity patterns using three‐year data from a group of spider monkeys in the Yucatan Peninsula of Mexico. We identified subgroup members and estimated their Interindividual distances through instantaneous scan sampling. We evaluated fruit availability by monitoring the phenology ofthe 10 most important food tree species for spider monkeys in the study site. Social network analyses allowed us to evaluate association and proximity patterns in subgroups. We showed that association patterns vary between seasons, respond to changes in fruit availability, and are influenced by the sex of individuals, likely reflecting biological and behavioral differences between sexes and the interplay between ecological and social factors. In contrast, proximity patterns were minimally affected by changes in fruit availability, suggesting that social factors are more important than food availability in determining cohesion within subgroups.


8.
- Artículo con arbitraje
Leaching of microplastics by preferential flow in earthworm (Lumbricus terrestris) burrows
Yu, Miao (autor) ; van der Ploeg, Martine (autora) ; Huerta Lwanga, Esperanza (autora) ; Yang, Xiaomei (autora) ; Zhang, Shaoliang (autor) ; Ma, Xiaoyi (autora) ; Ritsema, Coen J. (autor) ; Geissen Geissen, Violette (autora) ;
Disponible en línea
Contenido en: Environmental Chemistry Vol. 16, no. 1 (January 2019), p. 31-40 ISSN: 1448-2517
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Resumen en: Inglés |
Resumen en inglés

In the current study, we examine how the activities of earthworms (Lumbricus terrestris) affect microplastic (MP) distribution and concentration in soil, with a focus on low density polyethylene (LDPE). We also want to determine if MPs can be flushed out with water. We used a laboratory sandy soil column (polyvinyl chloride tube) experimental set-up and tested five different treatments: (1) treatment with just soil (control) to check if the saturated conductivity (Ksat) could be impacted by MP, (2) treatment with MP, (3) treatment with MP and litter, (4) treatment with earthworms and litter as a second control for treatment 5 and (5) treatment with MPs, earthworms and litter. Each treatment consisted of eight replicates. For the treatments with MP, the concentration of MP added at the start of the experiment was 7 % by weight (3.97 g, polyethylene, 50 % 1 mm–250 µm, 30 % 250 µm–150 µm and 20 % <150 µm) based on 52.78 g of dry litter from Populus nigra. In the treatments using earthworms, two adult earthworms, with an initial average weight of (7.14 ± 0.26) g, were placed in each column. Results showed that LDPE particles could be introduced into the soil by the earthworms.

MP particles were detected in each soil sample and within different soil layers for the earthworm treatments. Earthworms showed a tendency to transport the smaller MP particles and that the amount of MPs in size class <250 μm increased in soil samples with increasing soil depth in comparison to the other size classes. After leaching, MPs were only detected in the leachate from the treatments with the earthworms, and the MP had similar size distributions as the soil samples in the 40–50 cm layer of the treatment with MP, earthworms and litter. The results of this study clearly show that biogenic activities can mobilise MP transport from the surface into the soil and even be leached into drainage. It is highly likely that biogenic activities constitute a potential pathway for MPs to be transported into soil and groundwater.


9.
Artículo
Lepus alleni, Antelope Jackrabbit
Lorenzo Monterrubio, Consuelo (autora) ; Brown, D. E. (autor) ;
Disponible en línea
Contenido en: The IUCN Red List of Threatened Species Número e.T41272A45185265 (2019), p. 1-10 ISSN: 2307-8235
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10.
Libro
Movement ecology of neotropical forest mammals: focus on social animals / Rafael Reyna-Hurtado, Colin A. Chapman, editors
Disponible en línea: Movement ecology of neotropical forest mammals: focus on social animals.
Reyna Hurtado, Rafael Ángel (editor) ; Chapman, Colin A. (editor) ;
Geneva, Switzerland : Springer Nature Switzerland AG , 2019
Clasificación: EE/599.098 / M6
Bibliotecas: Campeche
Cerrar
SIBE Campeche
ECO040006971 (Disponible)
Disponibles para prestamo: 1
Índice | Resumen en: Inglés |
Resumen en inglés

This book brings a unique perspective to animal movement studies because all cases came from tropical environments where the great diversity, either biological and structurally (trees, shrubs, vines, epiphytes), presents the animal with several options to fulfill its live requirements. These conditions have forced the evolution of unique movement patterns and ecological strategies. Movement is an essential process in the life of all organisms. Animals move because they are hungry, thirsty, to avoid being eaten, or because they want to find mates. Understanding the causes and consequences of animal movement is not an easy task for behavioural ecologists. Many animals are shy, move in secretive ways and are very sensible to human presence, therefore, studying the movements of mammals in tropical environments present logistical and methodological challenges that have recently started to be solved by ecologist around the world. In this book we are compiling a set of extraordinary cases where researchers have used some of the modern technology and the strongest methodological approaches to understand movement patterns in wild tropical mammals. We hope this book will inspire and encourage young researchers to investigate wild mammal´s movements in some of the amazing tropical environments of the world.

Índice

1 Why Movement Ecology Matters
2 The Impact of Hurricane Otto on Baird’s Tapir Movement in Nicaragua’s Indio Maíz Biological Reserve
3 White-Lipped Peccary Home-Range Size in the Maya Forest of Guatemala and México
4 White-Lipped Peccary Movement and Range in Agricultural Lands of Central Brazil
5 Movements of White-Lipped Peccary in French Guiana
6 Spatial Ecology of a Large and Endangered Tropical Mammal: The White-Lipped Peccary in Darién, Panama
7 Movements of Neotropical Forest Deer: What Do We Know?
8 Daily Traveled Distances by the White-Tailed Deer in Relation to Seasonality and Reproductive Phenology in a Tropical Lowland of Southeastern Mexico
9 Terrestrial Locomotion and Other Adaptive Behaviors in Howler Monkeys (Alouatta pigra) Living in Forest Fragments
10 Variation in Space Use and Social Cohesion Within and Between Four Groups of Woolly Monkeys (Lagothrix lagotricha poeppigii) in Relation to Fruit Availability and Mating Opportunities at the Tiputini Biodiversity Station, Ecuador
11 Home Range and Daily Traveled Distances of Highland Colombian Woolly Monkeys (Lagothrix lagothricha lugens): Comparing Spatial Data from GPS Collars and Direct Follows
12 Ranging Responses to Fruit and Arthropod Availability by a Tufted Capuchin Group (Sapajus apella) in the Colombian Amazon
13 Insights of the Movements of the Jaguar in the Tropical Forests of Southern Mexico
14 Movements and Home Range of Jaguars (Panthera onca) and Mountain Lions (Puma concolor) in a Tropical Dry Forest of Western Mexico
15 Next Moves: The Future of Neotropical Mammal Movement Ecology
Index


11.
- Capítulo de libro con arbitraje
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Next moves: the future of neotropical mammal movement ecology
Reyna Hurtado, Rafael Ángel (autor) ; Chapman, Colin A. (autor) ;
Disponible en línea
Contenido en: Movement ecology of neotropical forest mammals: focus on social animals / Rafael Reyna-Hurtado, Colin A. Chapman, editors Switzerland, Suiza : Springer Nature Switzerland AG, 2019 página 263-267 ISBN:978-3-030-03462-7
Bibliotecas: Campeche
Cerrar
SIBE Campeche
10934-20 (Disponible)
Disponibles para prestamo: 1
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

This book compiles a remarkable array of studies dealing with Neotropical mammal movement patterns and therefore presents a unique opportunity to analyze the state of the art of movement ecology of some of the rarest and secretive species that are top predators, important prey to those predators, and/or critical to maintaining the ecosystem services of the forest ecosystems they inhabit. In this last chapter, we attempt to summarize lessons learned from all chapters and advance the field with respect to our understanding of the causes and consequences of animal movements in tropical forests.


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Resumen en: Inglés |
Resumen en inglés

The sterile insect technique (SIT) may offer a means to control the transmission of mosquito borne diseases. SIT involves the release of male insects that have been sterilized by exposure to ionizing radiation. We determined the effects of different doses of radiation on the survival and reproductive capacity of local strains of Aedes aegypti and Ae. albopictus in southern Mexico. The survival of irradiated pupae was invariably greater than 90% and did not differ significantly in either sex for either species. Irradiation had no significant adverse effects on the flight ability (capacity to fly out of a test device) of male mosquitoes, which consistently exceeded 91% in Ae. aegypti and 96% in Ae. albopictus. The average number of eggs laid per female was significantly reduced in Ae. aegypti at doses of 15 and 30 Gy and no eggs were laid by females that had been exposed to 50 Gy. Similarly, in Ae. albopictus, egg production was reduced at doses of 15 and 25 Gy and was eliminated at 35 Gy. In Ae. aegypti, fertility in males was eliminated at 70 Gy and was eliminated at 30 Gy in females, whereas in Ae. albopictus, the fertility of males that mated with untreated females was almost zero (0.1%) in the 50 Gy treatment and female fertility was eliminated at 35 Gy. Irradiation treatments resulted in reduced ovary length and fewer follicles in both species. The adult median survival time of both species was reduced by irradiation in a dose-dependent manner. However, sterilizing doses of 35 Gy and 50 Gy resulted in little reduction in survival times of males of Ae. albopictus and Ae. aegypti, respectively, indicating that these doses should be suitable for future evaluations of SIT-based control of these species. The results of the present study will be applied to studies of male sexual competitiveness and to stepwise evaluations of the sterile insect technique for population suppression of these vectors in Mexico.


13.
Tesis - Maestría
*En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-Chetumal
Patrones de actividad y abundancia relativa de especies presa de Panthera onca y Puma concolor en un paisaje modificado en el centro de Belice / Yahaira Liduvina Urbina
Liduvina Urbina, Yahaira ; Cedeño-Vázquez, J.R. (director) ; Ramírez Barajas, Pablo Jesús (asesor) ; Reyna Hurtado, Rafael Ángel (asesor) ;
Chetumal, Quintana Roo, México : El Colegio de la Frontera Sur , 2019
Clasificación: TE/599.744280972 / L5
Nota: En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-Chetumal
Resumen en español

Es importante comprender los efectos que las actividades antropogénicas tienen sobre las especies presa de grandes felinos, ya que ellas cumplen funciones vitales en el ecosistema y a menudo son una fuente de proteínas para las personas en las zonas rurales. En este estudio se evaluó el Índice de Abundancia Relativa (IAR) y los patrones de actividad de cinco especies presa de jaguar y puma (Dasypus novemcinctus, Cuniculus paca, Odocoileus virginianus, Dasyprocta punctata y Pecari tajacu) en un paisaje modificado en el centro de Belice; así como los factores que influyen en el comportamiento y el IAR de las especies presa. Se analizaron datos de 29 estaciones de cámaras trampa distribuidas en el valle del Río Belice. Se evaluó la influencia del hábitat y los factores antropogénicos sobre el IAR de las especies presa. Además, se analizaron las diferencias en los patrones de actividad de las especies de presas y estimamos la superposición con la actividad de depredadores, personas y perros domésticos. Los resultados sugieren que el venado cola blanca y el agutí son más abundantes que las otras tres especies en el área de estudio. El venado cola blanca evitó los asentamientos humanos, pero fue asociado con área agrícolas. Su comportamiento catemeral hizo que se traslape en actividad con los depredadores, pero también con los humanos y los perros domésticos. Hubo una gran superposición en la actividad entre el armadillo de nueve bandas y el jaguar; y las cinco especies presa mantuvieron cierto traslape con los perros domésticos, lo que sugiere posibles riesgos de depredación. Este estudio proporciona una comprensión de los factores que afectan la abundancia relativa de especies de presas y la interacción con los depredadores y las personas, pero destaca la necesidad de una evaluación más profunda de la interacción entre los perros domésticos y la fauna silvestre.

Índice

Resumen
Introducción
Artículo: Activity patterns and relative abundance of mammalian prey species of jaguar and puma in a modified landscape in central Belize
Abstract
Methods
Study area
Focal species
Camera trapping
Habitat and anthropogenic factors
Data analysis
Results
Discussion
Literature cited
Tables
Figures
Supplementary information
Conclusiones generales
Literatura citada


14.
- Capítulo de libro con arbitraje
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Spatial ecology of a large and endangered tropical mammal: the white-lipped peccary in Darién, Panama
Meyer, Ninon France Victoire (autor) ; Moreno, Ricardo (autor) ; Martínez Morales, Miguel Ángel (autor) (-2020) ; Reyna Hurtado, Rafael Ángel (autor) ;
Disponible en línea
Contenido en: Movement ecology of neotropical forest mammals: focus on social animals / Rafael Reyna-Hurtado, Colin A. Chapman, editors Switzerland, Suiza : Springer Nature Switzerland AG, 2019 páginas 77-93 ISBN:978-3-030-03462-7
Bibliotecas: Campeche
Cerrar
SIBE Campeche
9788-30 (Disponible)
Disponibles para prestamo: 1
Nota: Solicítelo con su bibliotecario/a
Resumen en español

Large mammals are negatively affected by habitat loss, fragmentation, and hunting. Thus, many of them are nowadays in urgent need of conservation actions to decrease their risk of extinction. Examining space use of large mammals by integrating empirical data and modeling is a primary prerequisite both for basic ecological understanding and for effective conservation planning. In this study, we investigated the basic spatial ecology of the white-lipped peccary (Tayassu pecari), a keystone ungulate species in the Neotropics. Specifically, we examined the home range and habitat use of the species in the Darién, Panama, which constitutes one of the last remaining strongholds for the species in Mesoamerica. In May and July 2016, we fitted GPS collars on two white-lipped peccaries from different herds and monitored them during 15 months and 1 month. The two herds used an area covered by mature forest and did not venture into disturbed areas during the time we monitored them. Both herds displayed home ranging behavior, and their estimated home range sizes were 58 km2 and 25 km2. The herd that was followed during 15 months showed little difference between seasonal home ranges, suggesting that the forest of Darién provided enough resources throughout the year for the herd to remain in the same area. Based on this study and other research in Panama, we consider that the white-lipped peccary population in Darién is healthy contrasting with many other sites in the country. Management actions need to address both the hunting pressure and the protection of large continuous tracts of undisturbed forests to guarantee the persistence of the species in Panama.


15.
Artículo
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Thoracobombus from Mexico: a description of the male species-specific cephalic labial gland secretions
Brasero, Nicolás ; Vandame, Rémy (coaut.) ; Sagot, Philippe (coaut.) ; Martinet, Baptiste (coaut.) ; Valterová, Irena (coaut.) ; Rasmont, Pierre (coaut.) ;
Contenido en: Apidologie Vol. 50, no. 2 (April 2019), p. 183-194 ISSN: 0044-8435
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Resumen en: Inglés |
Resumen en inglés

The male cephalic labial gland secretions of bumblebees are known to be species-specific semiochemicals. These secretions that are involved in bumblebee pre-mating recognition provide efficient diagnostic characters for species delimitation. The subgenus Thoracobombus is the largest group of bumblebees and is found in the Palearctic, Nearctic, and Neotropical regions. Here, the cephalic labial gland secretion (CLGS) composition of six Mexican Thoracobombus bumblebee species are analyzed: Bombus diligens, B. medius, B. mexicanus, B. pensylvanicus, B. trinominatus, and B. weisi. Our results suggest the presence of two new potential species into the formerly recognized B. weisi as well as one new potential species in the taxon presently identified as B. pensylvanicus. Moreover, the male of B. pensylvanicus, known to congregate at nest sites awaiting the emergence of virgin queens, is characterized by low concentrations of the C16 component. This observation raises the possibility that courtship behavior as well as environmental constraints could affect the role of the male bumblebees’ CLGS.


16.
- Capítulo de libro con arbitraje
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White-lipped peccary home-range size in the maya forest of Guatemala and México
Moreira Ramírez, José Fernando (autor) ; Reyna Hurtado, Rafael Ángel (autor) ; Hidalgo Mihart, Mircea Gabriel (autor) ; Naranjo Piñera, Eduardo Jorge (autor) (1963-) ; Ribeiro, Milton Cezar (autor) ; García Anleu, Rony (autor) ; McNab, Roan (autor) ; Radachowsky, Jeremy (autor) ; Mérida, Melvin (autor) ; Briceño Méndez, Marcos Alberto (autor) ; Ponce Santizo, Gabriela (autora) ;
Disponible en línea
Contenido en: Movement ecology of neotropical forest mammals: focus on social animals / Rafael Reyna-Hurtado, Colin A. Chapman, editors Switzerland, Suiza : Springer Nature Switzerland AG, 2019 página 21-37 ISBN:978-3-030-03462-7
Bibliotecas: Campeche
Cerrar
SIBE Campeche
9787-30 (Disponible)
Disponibles para prestamo: 1
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

The white-lipped peccary (Tayassu pecari, Link 1795) is a social ungulate that lives in large groups and performs large movements across tropical forest searching for food and water. White-lipped peccaries are an important food source among rural communities. Nevertheless, excessive hunting has caused the extirpation of this species from several areas in the Neotropics where it was previously common. Throughout its range it is considered vulnerable according to the IUCN Red List of Threatened Species, but the Mesoamerican population has decreased in the last 20 years at alarming rates. Using satellite GPS collars, kernel density estimate (KDE), minimum convex polygon (MCP), and the autocorrelated kernel density estimation (AKDE), we estimated the spatial requirements of four white-lipped peccary groups in three sites with different levels of hunting pressure in the Maya Forest of Guatemala and México. Our results showed that the home range estimated in non-hunted sites were smaller than in hunted sites. The 95% KDE home range for non-hunted areas ranged between 40 and 99 km2, substantially smaller than that of the hunted area at 140 km2. Similarly, the 95% AKDE area estimates for non-hunted sites ranged from 62 to 156 km2, while for the hunted site, the 95% AKDE estimate was 312 km2. In non-hunted sites, dry season home ranges were constrained to the close vicinity of water ponds, whereas during the rainy season white-lipped peccary groups were more mobile.

In contrast, the home range was larger in the hunted site during the dry season compared with rainy season. Our results suggest that hunting pressure in the Maya Forest is probably affecting the behavior and ecology of the peccary group, causing them to move through larger areas with lower group size in hunted areas compared to non-hunted areas. We hope that these results encourage more studies focused on estimating white-lipped peccary home-range size in areas with hunting pressure and human activities.


17.
Capítulo de libro
*Solicítelo con su bibliotecario/a
Why movement ecology matters
Chapman, Colin A. (autor) ; Reyna Hurtado, Rafael Ángel (autor) ;
Disponible en línea
Contenido en: Movement ecology of neotropical forest mammals: focus on social animals / Rafael Reyna-Hurtado, Colin A. Chapman, editors Switzerland, Suiza : Springer Nature Switzerland AG, 2019 páginas 1-3 ISBN:978-3-030-03462-7
Bibliotecas: Campeche
Cerrar
SIBE Campeche
59372-10 (Disponible)
Disponibles para prestamo: 1
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Resumen en: Inglés |
Resumen en inglés

The scientific discipline of “Movement Ecology” (Nathan et al. 2008) has played an important role in advancing our understanding of almost every ecological and evolutionary process, from nutrient cycling, to habitat selection, to population dynamics and community ecology. Interestingly, it has been almost a quarter of a century ago since Rodgers and Anson (1994) stated that GPS-based animal-location systems would become the standard for habitat selection studies. They were right! The data made available from GPS telemetry (i.e., sequence of GPS locations) quickly boosted the field of “Movement Ecology” (Nathan et al. 2008), and this field was also greatly advanced when the Max Planck Institute of Ornithology developed a free online database, Movebank (movebank.org), that allowed movement data from many, many species to be freely accessed and analysed (millions and millions of travel routes). Further advancements became possible with the development and use of new analytical tools to understand the rules used by the study animals to move (Ropert-Coudert and Wilson 2005; Sengupta et al. 2018).


18.
- Artículo con arbitraje
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Age-dependent strategies related to lionfish activities in the Mexican Caribbean
García Rivas, María del Carmen (autora) ; Machkour M'Rabet, Salima (autora) ; Pérez Lachaud, Gabriela (autora) ; Schmitter Soto, Juan Jacobo (autor) ; Céréghino, Régis (autor) ; Doneys, Cassiopea (autora) ; St Jean, Nikolas (autor) ; Hénaut, Yann (autor) ;
Contenido en: Environmental Biology of Fishes Vol. 101, no. 4, 122 (April 2018), p. 563–578 ISSN: 0378-1909
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Resumen en: Inglés |
Resumen en inglés

Lionfish are successful invasive predators in the Caribbean region and inhabit a large range of habitats. Our study in the Caribbean has focused on the relationships between the biological characteristics of lionfish particularly their size, their activities and use of those different habitats. In this study, we observed a high number of lionfish individuals, focusing on the behavioural activities and biological traits in relation to different habitats and environmental characteristics. We monitored 793 individuals, recording their activities, biological traits, and habitat characteristics. Our results report that lionfish are not solitary, but frequently form groups for many activities. We provide evidence of differences between lionfish habitat use according to activity, and the size of individual fish. Considering the size is correlated with age, coral reefs appear to be the preferred habitat of older individuals, whereas the youngest lionfish use a diversity of habitats, ranging from mangroves to coral reefs. In addition, this study suggests that predation of lionfish is age-dependent strategy, and depends on time and the tone of the environment. Lionfish do not only use the head-down posture to catch prey but also horizontal and head-up postures. The youngest lionfish hunt mainly in dark areas and during the night while the older fish were observed hunting mostly during the day and in clear areas. These new aspects of lionfish ecology and behaviour are discussed in light of their invasive success.


19.
- Capítulo de libro con arbitraje
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Annual foraging patterns of the maya bee Melipona beecheii (Bennett, 1831) in Quintana Roo, Mexico
Di Trani, Juan Carlos (autor) ; Villanueva Gutiérrez, Rogel (autor) ;
Disponible en línea
Contenido en: Pot-pollen in stingless bee melittology / Patricia Vit, Silvia R.M. Pedro, David W. Roubik, editors Cham, Switzerland, German : Springer International Publishing AG, 2018 p. 131-138 ISBN:978-3-319-61838-8 :: 978-3-319-61839-5 (eBook)
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20.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Associative learning of non-nestmate odor marks between colonies of the stingless bee Scaptotrigona mexicana Guérin (Apidae, Meliponini) during foraging
Villanueva Gutiérrez, Rogel (autor) ; Solórzano Gordillo, Erik de Jesús (autor) ; Rojas, Julio C. (autor) ; Cruz López, Leopoldo Caridad (autor) ; Sánchez Guillén, Daniel (autor) ;
Disponible en línea
Contenido en: Insectes Sociaux Vol. 65, no. 3 (August 2018), p. 393-00 ISSN: 0020-1812
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Resumen en: Inglés |
Resumen en inglés

Stingless bees use chemical signals to communicate nestmates the location of rich food sources. Such information may be intercepted by conspecifics from other colonies. In this study, we investigated if chemical information from non-nestmates can be used to orient foragers of the stingless bee Scaptotrigona mexicana to food sources. In the first experiment, foragers were exposed to feeders that were differentially odor-marked by nestmates and non-nestmates, and their preferences for both types of feeders were recorded. In a second experiment, we marked different feeders with mandibular or labial gland extracts of nestmates and non-nestmates. Results from the first experiment indicate that foragers were able to associate odor marks from non-nestmates with rich food sources. In the second experiment, we observed that foragers did not differentiate between the gland extracts of nestmates and those from non-nestmates. We discuss these findings within a behavioral and ecological framework.


21.
Tesis - Doctorado
*En proceso técnico. Solicítelo con el bibliotecario de SIBE-Campeche
Comportamiento y movimiento de los grandes mamíferos terrestres en paisajes fragmentados: implicaciones para el diseño de corredores biológicos / Ninon France Victoire Meyer
Meyer, Ninon France Victoire ; Reyna Hurtado, Rafael Ángel (Director) ; Martínez Morales, Miguel Ángel (Asesor) (-2020) ; Jordan, Christopher A. (Asesor) ; Balkenhol, Niko (Asesor) ;
Lerma, Campeche, México : El Colegio de la Frontera Sur , 2018
Clasificación: TE/599 / M4
Bibliotecas: Campeche
Cerrar
SIBE Campeche
ECO040006893 (Disponible)
Disponibles para prestamo: 1
Nota: En proceso técnico. Solicítelo con el bibliotecario de SIBE-Campeche
PDF
Índice | Resumen en: Español | Inglés |
Resumen en español

La fragmentación de hábitat es uno de los principales conductores de pérdida de biodiversidad, incluso los mamíferos grandes en ambientes tropicales. Los corredores biológicos, tal como el Corredor Biológico Mesoamericano (CBM), constituyen una herramienta de conservación para restaurar la conectividad funcional en los paisajes fragmentados. El Istmo de Panamá es la última y más estrecha porción del CBM y ha servido desde miles de años como puente terrestre entre América del Norte y América del Sur para el movimiento y flujo de genes de muchas especies. Sin embargo, la funcionalidad de los bosques panameños como corredores de fauna ha sido puesta en duda y nunca ha sido cuantificada de manera adecuada. El objetivo de esta investigación fue evaluar la efectividad del CBM para los mamíferos grandes de Panamá, e identificar áreas importantes para los movimientos y la conservación a largo plazo de dichas especies. Existen muchos enfoques para identificar áreas con alto potencial de conectividad, pero no hay conceso claro sobre el método más correcto y efectivo. En este trabajo use una combinación de datos de ocupación derivados de muestreos de cámaras trampa a gran escala, y datos de movimiento de collares GPS, para investigar el uso de hábitat y los patrones de movimiento de nueve especies de mamíferos grandes, y estimar la resistencia del paisaje, el insumo primario en la modelación de conectividad. Primero, los resultados mostraron que no todas las áreas protegidas en Panamá albergan un ensamblaje intacto de ungulados. También encontré que el jaguar, tapir de Bairdii, pecarí de labios blancos, y oso hormiguero gigante tienen una ocupación baja y que hay muchos vacíos en su distribución a lo largo de Panamá, lo cual sugiere que América del Norte y Sur ya no están conectadas de manera efectiva para algunas especies silvestres.

Basado en este análisis, se identificó al Parque Nacional Darién como una zona de suma importancia para todas las especies focales, en particular el pecarí de labios blancos. Ahí, se encontró que las manadas de esta especie alcanzan a menudo 80 – 100 individuos, y que usan la misma área todo el año, lo cual indica que los bosques del Darién proveen suficiente recursos para soportar los requisitos ecológicos de manadas grandes. Por último, los escenarios de conectividad que se desarrollaron entre zonas núcleos de áreas protegidas para un grupo de especies sensibles a la perturbación de hábitat fueron más estrechos y menos numerosos que los corredores desarrollados para un grupo de especies más tolerantes. Los datos de ocupación también tenían una tendencia a subestimar la conectividad funcional en comparación con los datos de movimiento. Estos hallazgos destacan la importancia de adoptar un enfoque multi-especies, y de considerar el comportamiento durante los movimientos para asegurar una planificación efectiva de corredor. Este estudio indica que para promover la conservación de los grandes mamíferos a largo plazo en Panamá y en la región Centroamericana, los esfuerzos de restauración tienen que ser diseñados a nivel del paisaje, pero que el éxito de los corredores biológicos dependerá en gran parte de consideraciones sociopolíticas y económicas.

Resumen en inglés

Habitat fragmentation is a primary driver of wildlife loss, especially large mammals in the tropics. Wildlife corridor such as the Mesoamerican Biological Corridor (MBC), is a common conservation tool to restore functional connectivity in fragmented landscapes. The Isthmus of Panama is the last and narrowest link of the MBC and has served as a land bridge between North and South America for movement and gene flow of numerous species since thousands of years. However, the current effectiveness of Panama’s forests as corridor was put into question, and has never been adequately quantified. The objective of this research was to evaluate the effectiveness of the MBC for large terrestrial mammals in Panama, and identify important areas for their movement and long-term conservation. Many modeling approaches exist to identify areas with high potential connectivity, but there is no clear consensus on the most accurate, cost-effective method. I used a combination of occupancy data from large-scale camera trapping surveys, and movement data from GPS collars to investigate the habitat use and movement patterns of multiple species of large mammals, and derive landscape resistance, the primary input for connectivity modeling. Results first showed that not all of the protected areas in Panama harbor intact assemblage of ungulates. I also found that the jaguar, Baird’s tapir, whitelipped peccary and giant anteater had low occupancy levels and clear gaps in their distribution throughout Panama, suggesting that Mesoamerica and South America are no longer effectively connected for some forest species. Based on this analysis, the Darien was identified as a stronghold for all the focal species, in particular for the white-lipped peccary.

There, I found that the herds often reach 80-100 individuals, and that they use the same area all year long, indicating that the Darien forest provides sufficient resources to support the ecological requirements of large herds. Finally, the multi-species connectivity scenarios that were developed between core areas for a group of species sensitive to habitat disturbance were narrower and fewer than those developed for a group of tolerant species. The occupancy data also tend to underestimate functional connectivity in comparison with when using movement data. These findings underscore the importance of adopting a multi-species approach, and considering movement behavior to ensure effective corridor planning. Finally, this study highlights that in order to promote the long-term conservation of large mammals in Panama and beyond, restoration efforts must be taken at the landscape level, but the success of wildlife corridors also largely relies on sociopolitical and economic considerations.

Índice

Agradecimientos & Acknowledgments
Resumen
Abstract
I. Introducción
Modelar la resistencia
Corredores para varias especies
Objetivos
Área de Estudio
Estructura de la Tesis
I. Introduction
II. Do Protected Areas in Panama Support Intact Assemblages of Ungulates?
Abstract
Introducción
Material and Methods
Data Analysis
Results
Discussion
Conclusión
Acknowledgments
References
III. Evaluating the Effectiveness of Panama as an Ecological Bridge Between Two Continents for Large Mammals
Abstract
Introduction
Methods
Study area
Camera trapping surveys
Environmental variables
Focal species
Occupancy Models - Data Analysis
Results
Discussion
Acknowledgments
Literature Cited
IV. Spatial Ecology of a Large and Endangered Tropical Mammal : the White-Lipped Peccary in Darien, Panama
Abstract
Introduction
Methods
Study area
Capture and collaring of WLPs
Data Analysis And Home Range
Results
Captures, GPS fix rate, and data period transmission
Home range
Discussion
Acknowledgments
References
V. Towards the Restoration of The Mesoamerican Biological Corridor in Panama : a Multi-Species Approach
Abstract
Introduction
Methods
Study area
Focal species
Environmental variables
Animal locations and movement data
Data Analysis
Occupancy and movement models
Estimating the resistance
From single to multi-species connectivity scenarios
Results
Animal locations and scale of analysis
Occupancy and movement models
Multi-species connectivity scenarios
Discussion
Multi-species scenarios
Effect of data source
Limitations and suggestions
Implications for long-term mammal conservation in Panama
Acknowledgments
References

VI. Conclusión
Estado de Conservación de los Mamíferos, Movimiento y Conectividad Funcional
Sugerencias Para Mejorar Estudios de Fauna Silvestre y Diseños de Conectividad
Perspectivas Para la Conservación de los Mamíferos Grandes en un País de Rápido Crecimiento
VI. Conclusión
Literatura Citada


22.
Artículo - Nota científica con arbitraje
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23.
- Artículo con arbitraje
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Demography of a genetic sexing strain of Anastrepha ludens (Diptera: Tephritidae): effects of selection based on mating performance
Quintero Fong, José Luis ; Toledo, Jorge (coaut.) ; Ruiz Montoya, Lorena (coaut.) (1964-) ; Rendón Arana, Pedro Alfonso (coaut.) ; Orozco Dávila, Dina (coaut.) ; Valle Mora, Javier Francisco (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: Agricultural and Forest Entomology Vol. 20, no. 1 (February 2018), p. 1-8 ISSN: 1461-9555
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Resumen en: Inglés |
Resumen en inglés

1. Tapachula-7 is a genetic sexing strain of Anastrepha ludens (Loew) (Diptera: Tephritidae) developed for the application of the sterile insect technique (SIT). To improve the sexual performance of this strain, a mass-reared colony was established from males selected for their sexual competitiveness. 2. Males from selected colonies are more sexually competitive than nonselected males. The present study aimed to analyse the demographic changes recorded in the study colony throughout four consecutive generations, comparing this colony with the parental colony and a wild strain. 3. The results obtained showed that, in the selected strain, fecundity increased, whereas survival diminished, compared with the laboratory parental strain. The increases in fecundity rates were observed at the first generation after selection. No changes were observed in the duration of the reproductive period in the selected strain. 4. Compared with wild flies, selected flies had lower life expectancy, earlier and shorter reproductive period, and greater daily fecundity at young ages (10–30 days), although with lower lifetime fecundity rates. 5. The four generations of the selected colony showed similar patterns of survival and reproduction. The better mating performance and the increase in early fecundity suggest that selection could contribute to improve rearing efficiency and SIT effectiveness.


24.
- Artículo con arbitraje
Duración y éxito de eclosión en diferentes tamaños de nidadas de Crocodylus moreletii (Crocodylia: Crocodilidae)
Mandujano Camacho, Hernán Orbelín ; Hénaut, Yann (coaut.) ; Cocroft, Reginald B. ; Vliet, Kent A. (coaut.) ;
Contenido en: Hidrobiologica Vol. 28, no. 2 (2018), p. 157-162 ISSN: 0188-8897
PDF PDF
Resumen en: Español | Inglés |
Resumen en español

Antecedentes. Los Crocodylia inician su historia de vida al superar la etapa de incubación con la eclosión en grupo. La temperatura de incubación es importante para el desarrollo de los embriones y el proceso de eclosión, durante el cual emiten sonidos. Objetivos. Reportar la influencia del tamaño de la nidada sobre la duración y el éxito de eclosión, y describir dicho proceso. Métodos. Se emplearon cuatro nidadas de Crocodylus moreletii de la Unidad de Manejo para la Conservación de la Vida Silvestre (UMA) Granja de Lagartos, en Tabasco, México. Con estas se integraron tres nidadas de diferente tamaño: grande (15 huevos), mediana (9 huevos) y pequeña (un huevo). Se monitorizó la temperatura, la humedad relativa y el número de huevos eclosionados y se compararon estadísticamente la duración de las eclosiones y el periodo de incubación, así como el éxito de la eclosión entre los tres tamaños de nidadas. Por último, se verificó que las condiciones de incubación fueran iguales para todas las nidadas. Resultados. Las nidadas pequeñas (x = 3340 ± 2794) y las medianas (x = 1844 ± 476) tardaron menos minutos en eclosionar en comparación con las nidadas grandes (x = 9431 ± 768). Mientras que el éxito de la eclosión (expresado en porcentaje) y la duración en días del periodo de incubación no mostraron diferencias entre los tres tamaños de nidada. Las eclosiones iniciaron con la emisión de los llamados preeclosionales, los cuales se escucharon una semana antes de la eclosión. Conclusiones. El tamaño de nidada influye en la duración de la eclosión, pero no influye sobre su éxito.

Resumen en inglés

Background. The Crocodylia begin their life by overcoming the incubation stage with group hatching. Incubation temperature is important for the development of the embryos and the duration of the hatching process, during which they emit sounds. Goals. The effect of the size of the clutch on the duration and success of hatching is reported for the first time, and the hatching process is described. Methods. We used four clutches supplied by the “Granja de Lagartos” farm in Tabasco, Mexico, from the 2010 breeding season, and each was distributed in containers to integrate three clutches of different size: large (15 eggs), medium (nine eggs), and small (one egg). We monitored the temperature, relative humidity, and the number of eggs hatched in each clutch. The duration of hatching and the incubation period were statistically compared, as well as hatching success among the three brood sizes. We made sure that incubation conditions were the same for all boxes. Results. The small clutches (x = 3340, ± 2794 min) and the medium-sized ones (x = 1844 ± 476 min) took less minutes to hatch, and both took less time than the large clutches (x = 9431 ± 768 min). The hatchings began with the vocalization of pre-hatching calls, heard up to a week before eclosion. Conclusions. The size of the clutch influences the duration of hatching, but is not related to hatching success.


25.
Tesis - Maestría
*En proceso técnico. Solicítelo con la bibliotecaria de SIBE-Tapachula
Estrategias de depredación y tipos de presas de dos especies de arañas del género Phonotimpus (Araneae: Phrurolithidae) / Gabriela Guadalupe Angulo Ordoñes
Ángulo Ordoñes, Gabriela Guadalupe ; Chamé Vázquez, Eduardo Rafael (director) ; González Gómez, Rebeca (asesora) ; Solís Montero, Lislie (asesora) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2018
Clasificación: TE/595.44097275 / A3
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020013632 (Disponible)
Disponibles para prestamo: 1
Nota: En proceso técnico. Solicítelo con la bibliotecaria de SIBE-Tapachula
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Índice | Resumen en: Español |
Resumen en español

Se llevaron a cabo observaciones en laboratorio para determinar las estrategias de depredación y los tipos de presas de dos especies de arañas del género Phonotimpus (Araneae: Phrurolithidae) que habitan en el área de la Reserva de la Biosfera Volcán Tacaná, Chiapas. A cada especie se le ofrecieron diferentes presas (colémbolos, hemípteros y psocópteros) y se analizó a detalle la respuesta de cada especie frente a cada tipo de presa. Se realizaron comparaciones para detectar diferencias en el repertorio comportamental entre especies y por tipos de presas. Ambas especies atacaron y consumieron en mayor cantidad a los colémbolos, mientras que los hemípteros fueron atacados pero tuvieron menos capturas y los psocópteros solo fueron capturados en una ocasión. El comportamiento de depredación varió de acuerdo al tipo de presa. De manera general el comportamiento de depredación de Phonotimpus consistió en: la aproximación, detección y orientación hacia la presa (comienzo de la secuencia comportamental). Usualmente las arañas permanecieron inmóviles un breve tiempo mientras la presa se aproximó. Este comportamiento permitió a las arañas no ser detectadas. Si la presa se encontró inmóvil, las arañas se acercaron (menos de un cuerpo de distancia) para comenzar el ataque. Con un movimiento rápido, las arañas extendieron sus patas delanteras para alcanzar y abrazar a la presa. Las arañas llevaron rápidamente la presa a sus colmillos y extendieron sus patas delanteras. Algunas ocasiones realizaron desplazamientos con la presa capturada pero usualmente la secuencia concluía con la inmovilización prolongada de la presa. Este comportamiento es usual en algunas arañas cazadoras, que esperan inmóviles entre la hojarasca a que su presa se aproxime para después realizar el ataque

Índice

1 Introducción
2 Justificación
3 Pregunta de Investigación
4 Hipótesis
5 Objetivos
5.1 Objetivo General
5.2 Objetivos Particulares
6 Materiales y Métodos
6.1 Especies de estudio
6.2 Colecta de arañas y presas
6.3 Mantenimiento en laboratorio
6.4 Diseño experimental
6.5 Registro de actos
6.6 Análisis de datos
7 Resultados
7.1 Comportamiento de depredación de Phonotimpus
7.2 Comportamiento de Phonotimpus frente a Collembola sp
7.3 Comportamiento de Phonotimpus frente a Delphacidae sp
7.3.1 P. pennimani frente a Delphacidae sp
7.3.2 P. talquian frente a Delphacidae sp
7.4 Comportamiento de Phonotimpus frente a Lygaeidae sp
7.4.1 P. pennimani frente a Lygaeidae sp
7.4.2 P. talquian frente a Lygaeidae sp
. 7.5 Comportamiento de Phonotimpus frente a Caeciliidae sp
7.5.1 P. pennimani frente a Caeciliidae sp
7.5.2 P. talquian frente a Caeciliidae sp
7.6 Actos comportamentales
7.7 Respuesta de Phonotimpus frente los diferentes tipos de presas
7.8 Duración de actos comportamentales
7.9 Tiempo hasta la captura
8 Discusión
9 Conclusiones
10 Literatura Citada
11 Anexos
Anexo 1