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698 resultados encontrados para: AUTOR: López López, R.
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1.
Artículo
Arthropod pests and their management, natural enemies and flora visitors associated with castor (Ricinus communis), a biofuel plant: a review
López Guillén, Guillermo (autor) ; Gómez Ruiz, Jaime (autor) ; Barrera, Juan F. (autor) ;
Disponible en línea
Contenido en: Revista Colombiana de Entomología Volumen 46, número 1, e8604 (2020), páginas 1-17 ISSN: 2665-4385
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Resumen en: Español | Inglés |
Resumen en español

El interés por los cultivos bioenérgeticos, tales como Ricinus communis (Euphorbiaceae) para producir biodiesel ha aumentado en años recientes. En este documento se hace una revisión sobre los artrópodos fitófagos, enemigos naturales y visitantes florales asociados a esta planta en el mundo. A pesar de las propiedades insecticidas de R. communis, existen registros sobre artrópodos que se alimentan de ella. Los artrópodos plaga de R. communis dañan toda la planta, incluso las semillas, donde se localizan compuestos tóxicos más concentrados. En las bases de datos científicas, se encontró registro de 193 artrópodos asociados a R. communis en diferentes partes del mundo. Esta información se concentró en una base de datos y se analizó de acuerdo con la hipótesis coevolutiva, la cual permite predecir que la mayor riqueza y abundancia de artrópodos fitófagos, se encuentra en el centro de origen de R. communis. De esta revisión se desprende que entre las plagas más devastadoras en Asia se encuentran Achaea janata, Spodoptera litura, Edwardsiana flavescens, Liriomyza trifolii, L. sativae, Spilosoma obliqua, Cogenethes punctiferalis, Oxyrhachis taranda y Helicoverpa armigera.

En África, las plagas más importantes son Agrotis ipsilon, S. exigua, Nezara viridula, Trialeurodes ricini y Tetranychus urticae. Entre las plagas de importancia económica que se reportan en Centro y Suramérica, están Phyllophaga sp., Agrietes sp., Erinnyis ello, N. viridula, Corythucha gossypii, Falconia antioquiana y S. marima. Los enemigos naturales de algunas plagas comúnmente reportados fueron Bacillus thuringiensis, B. cereus, B. popilliae, Trichogramma achaeae, T. chilonis, T. minutum, T. australicum, T. dendrolimi, T. pretiosum, T. evanescens, Microplitis rufiventris, M. maculipennis, M. ophiusae, Telenomus remus, T. proditor, Stethorus siphonulus y S. histrio. Se registra a Apis mellifera como el insecto más polinizador de R. communis. Los métodos de manejo de plagas contra artrópodos de R. communis incluyen control biológico, etológico, mecánico, cultural, génetico y químico.

Resumen en inglés

Interest in bioenergetic crops, such as the castor oil plant Ricinus communis (Euphorbiaceae), for production of biodiesel has increased in recent years. In this paper, phytophagous arthropods, their natural enemies and floral visitors associated with this plant in the world are reviewed. Despite its insecticidal properties, arthropods have been reported feeding on R. communis plants. The arthropod pests of R. communis damage all parts of the plant, including the seeds, where some toxic compounds are even more concentrated. In the scientific databases, we found reports of 193 arthropods associated to R. communis in different parts of the world. This information obtained in the scientific databases was concentrated in a database and analyzed according to the coevolutive hypothesis, which allows us to predict that the greatest wealth and abundance of phytogenic arthropods is found in the center of origin by R. communis. According to this review, Achaea janata, Spodoptera litura, Edwardsiana flavescens, Liriomyza trifolii, L. sativae, Spilosoma obliqua, Cogenethes punctiferalis, Oxyrhachis taranda, and Helicoverpa armigera are the most devastating pests in Asia.

In Africa, Agrotis ipsilon, S. exigua, Nezara viridula, Trialeurodes ricini, and Tetranychus urticae were mentioned as the most important. In Central and South-America, Phyllophaga sp., Agrietes sp., Erinnyis ello, N. viridula, Corythucha gossypii, Falconia antioquiana, and S. marima are reported as pests of economic importance. The most commonly reported natural enemies of some of these arthropod pests were species of Bacillus thuringiensis, B. cereus, B. popilliae, Trichogramma achaeae, T. chilonis, T. minutum, T. australicum, T. dendrolimi, T. pretiosum, T. evanescens, Microplitis rufiventris, M. maculipennis, M. ophiusae, Telenomus remus, T. proditor, Stethorus siphonulus and S. histrio. Apis mellifera is recorded as the main insect pollinator of R. communis. Pest management methods used against the arthropod pests of R. communis include biological, ethological, mechanical, cultural, genetic, and chemical control.


2.
Artículo
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Resumen en: Español | Inglés |
Resumen en español

Objetivo. Determinar la abundancia y la distribución geográfica de los principales vectores de la malaria, las cuales están influenciadas por las características del hábitat y los factores ecológicos que afectan directamente la densidad de los adultos y la dinámica de la transmisión de la malaria en México. Material y métodos. Se obtuvieron muestras de larvas de 19 estados de México. Cada hábitat larvario se caracterizó in situ determinando los siguientes parámetros: profundidad del agua, turbidez, porcentaje de cobertura vegetal, cantidad de detritus, presencia de algas, intensidad de luz, tipo de vegetación, cantidad de depredadores, estabilidad del hábitat, altitud y tipo hidrológico. Resultados. Se identificaron un total de 21 687 larvas pertenecientes a 13 especies de anofelinos, de 149 hábitats acuáticos. Las tres especies más abundantes fueron Anopheles pseudopunctipennis (52.91%), An. albimanus (39.14%) y An. franciscanus (5.29%). El análisis de regresión logística múltiple mostró una asociación negativa para An. pseudopunctipennis y la turbidez del agua (ß=-1.342; Wald= 6.122; p=0.013) y la cantidad de detritus (ß=-2.206; Wald= 3.642; p=0.050). Para An. albimanus se encontró una asociación positiva significativa con la turbidez del agua (ß=1.344; Wald= 4.256; p=0.039) y una correlación negativa con la altitud (ß=-3.445; Wald=5.407; p=0.020). El índice de diversidad más alto se encontró en Chiapas (α de Fisher=1.20) y la diversidad más baja en Chihuahua (α de Fisher=0.26). La mayor riqueza se encontró en los arroyos (n=11). Conclusiones. Las dos especies más abundantes fueron An. albimanus y An. pseudopunctipennis. El conocimiento detallado de la distribución y características de sus hábitats larvales será útil para la implementación efectiva de las estrategias de control en México.

Resumen en inglés

Objective. To determine the abundance and geographic distribution of the main malaria vectors, which are influenced by habitat characteristics and ecological factors that directly impact adult density and the dynamics of malaria transmission in Mexico. Materials and methods. Samples of larvae were collected from 19 states in Mexico. Each larval habitat was characterized in situ determining the following parameters: water depth, turbidity, percentage of vegetation cover, amount of detritus, presence of algae, light intensity, type of vegetation, amount of predators, habitat stability, altitude, and hydrologic type. Results. A total of 21 687 larvae corresponding to 13 anopheline species were obtained from 149 aquatic habitats. The most abundant species were Anopheles pseudopunctipennis (52.91%), An. albimanus (39.14%) and An. franciscanus (5.29%). The multiple logistic regression analysis showed a negative association between An. pseudopunctipennis and water turbidity (ß=-1.342; Wald=6.122; p=0.013) and the amount of detritus (ß=-2.206; Wald=3.642; p=0.050). While in An. albimanus, there was a significant positive association with water turbidity (ß=1.344; Wald=4.256; p=0.039), a negative correlation was found with the altitude (ß=-3.445; Wald=5.407; p =0.020). The highest mosquito species diversity index was found in Chiapas (Fisher’s α=1.20) and the lowest diversity in Chihuahua (Fisher’s α=0.26). The greatest richness was found in streams (n=11). Conclusions. The two most abundant species were: An. albimanus and An. pseudopunctipennis. Detailed knowledge of the distribution and characteristics of their larval habitats will be useful for the effective implementation of control strategies in Mexico.


3.
Artículo
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Resumen en: Inglés |
Resumen en inglés

Natural Protected Areas (NPAs) are consider adequate tools for biodiversity conservation. Currently in Mexico there are 182 federal NPAs classified according to their management objectives. Chiapas is the Mexican state with the highest number of decreed NPAs and also allocates one of the largest territorial extensions for its protection. Unlike other taxa, and despite their proven ability to respond to ecosystem changes, the study of dung beetles within Mexican NPAs has been underestimated, as they are not considered as a priority group within their management and conservation programs. Based on the review of information available in publications and database on dung beetles, a list of 112 species and seven subspecies recorded in 16 of the 19 federal NPAs established in Chiapas is presented.

The species recorded by each NPA show a significant correlation with the number of publications, but a low percentage of them correspond to studies with systematic samplings and most of the species reported in several of the NPAs come from sporadic records, which prevents the study of several basic and applied aspects of dung beetles in the region. Therefore, studies that extensively analyze the communities of arthropod groups, such as the Scarabaeinae, are necessary to understand their response to changes in the ecosystem at local and regional scale. It is advisable that these insects be included in the previous justifying studies for the designation or establishment of NPAs and, in turn, considered in the biological monitoring programs of these areas for their capacity as a bioindicator group.


4.
Artículo
Does florivory affect the attraction of floral visitors to buzz-pollinated Solanum rostratum?
Vega Polanco, Mayumi (autora) ; Rodríguez Islas, Luis Antonio (autor) ; Escalona Domenech, Raisa Yarina (autora) ; Cruz López, Leopoldo Caridad (autor) ; Rojas, Julio C. (autor) ; Solís Montero, Lislie (autora) ;
Disponible en línea
Contenido en: Arthropod-Plant Interactions Volumen 14 (2020), p. 41–56 ISSN: 1872-8847
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Floral herbivory (florivory) can directly and indirectly affect plant reproduction through the loss of ovules or seeds and by reducing the visitation by pollinators through the reduction in flower attractiveness, respectively. We studied the effect of florivory on pollinator visitation in a buzz-pollinated herb. We used Solanum rostratum as the study model because its specialised morphology, heterantherous flowers that emit floral scents, demands a close association with its pollinators (buzzing bees). We hypothesized that when florivores consume the attractive structures (corolla and rewarding anthers), the pollinators would visit the damaged flowers less often, indirectly affecting S. rostratum reproductive success. Furthermore, we hypothesized that consumption of the reproductive structures (pollinating anther and pistil) would directly affect the plants reproductive success.

We conducted observations of three S. rostratum populations in central Mexico. We observed twelve species of florivore consuming S. rostratum flowers. Florivores preferred to consume the attractive structures (corolla) over reproductive structures. However, they preferred to consume the anthers specialised for feeding pollinators over the anthers specialised for pollination. In addition, we recorded floral volatiles emitted by flowers damaged by florivory using solid-phase microextraction coupled with gas chromatography–mass spectrometry. We identified 25 volatile compounds in S. rostratumflowers, mainly aromatic, monoterpene and sesquiterpene compounds. The relative proportions of these compounds differed between undamaged and damaged flowers. Bioassays showed that both legitimate visitors (pollinators) and illegitimate visi-tors (thieves) visited undamaged flowers more often than flowers damaged by florivores; however, the decrease in visitation frequency did not affect fruit and seed production. In conclusion, the consumption of attractive (corolla) and reward floral structures (feeding anthers) reduced the frequency of visits by pollinators but does not affect S. rostratum reproductive success (fruit and seed set) probably because reproductive structures (pistil and pollinating anthers) are less often consumed.


5.
Artículo
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Efecto de la dieta en el ciclo biológico y en los componentes de su feromona sexual de spodoptera frugiperda
Cruz Esteban, Samuel (autor) ; Mérida Torres, Neby M. (autor) ; Álvarez Morales, Karla P. (autora) ; López Flores, Carlos J. (autor) ; Malo Rivera, Edi Álvaro (autor) ;
Disponible en línea
Contenido en: Southwestern Entomologist Volumen 45, número 1 (Mar. 2020), p. 227-240 ISSN: 0147-1724
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Resumen en español

El gusano cogollero, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), está distribuido en todo el continente americano y recientemente en el continente africano y en Asia. Este insecto es de importancia económica ya que ataca a una variedad de plantas de diferentes familias principalmente gramíneas entre las que sobresalen maíz, sorgo, arroz, y pastos. En este estudio se determinó el ciclo biológico de tres grupos de S. frugiperda, colectados en maíz. Los insectos fueron criados en condiciones de laboratorio, dos grupos fueron alimentados con dieta artificial y uno con hojas de maíz. Los resultados muestran que el ciclo biológico fue diferente en los tres grupos, los criados con dieta artificial tardaron 57.6 y 58.9 días en completar el ciclo, y los criados con hojas de maíz 66.9 días. Además, se capturaron los compuestos volátiles emitidos por las hembras durante el llamado y se identificaron tres compuestos: (Z)-9-acetato de tetradecenilo (Z9-14:OAc) como mayoritario, (Z)-11-acetato de hexadecenilo (Z11-16:OAc) como compuesto secundario y el (Z)-7-acetato de dodecenilo (Z7-12:OAc) como trazas en los tres grupos estudiados, por cromatografía de gases acoplado a espectrometría de masas (CG-EM). Los compuestos identificados mostraron variación proporcional entre los grupos de insectos estudiados. Estos resultados muestran un posible efecto de la dieta en el ciclo biológico del insecto y en la producción de la feromona sexual, y pueden ser útiles para la implementación de monitoreo de esta plaga con feromona.

Resumen en inglés

The fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is distributed throughout the Americas and recently in the African and Asiatic continents. This insect is of economic importance because it attacks a variety of plants of different families, mainly grasses, maize, sorghum, rice, and pastures. In this study, the biological cycle of three groups of S. frugiperda, collected in maize was determined. The insects were raised in laboratory conditions, two groups were fed artificial diet, and one with maize leaves. The results show that the biological cycle was different: in the groups fed with artificial diet the cycle was completed in 57.6 and 58.9 days, whereas in the group fed maize leaves the cycle took 66.9 days. Volatile compounds emitted by the females during calling were captured, and three compounds were identified: (Z)-9-tetradecenyl acetate (Z9-14:OAc) as the majority, (Z)-11-hexadecenyl acetate (Z11-16:OAc) as a secondary compound, and dodecenyl (Z)-7-acetate (Z7-12:OAc) traces in the three populations studied, by gas chromatography coupled to mass spectrometry (GC-MS). The compounds identified showed proportional variation between the groups of insects studied. The results show a possible effect of diet on the biological cycle of the insect and production of sexual pheromone; this may be useful for the implementation in monitoring this pest with pheromone.


6.
Artículo
Emerging arboviruses (dengue, chikungunya, and Zika) in Southeastern Mexico: influence of socio-environmental determinants on knowledge and practices
Causa, Roberta (autora) ; Ochoa Díaz López, Héctor (autor) ; Dor Roques, Ariane Liliane Jeanne (autora) ; Rodríguez León, Fernando (autor) ; Solís Hernández, Roberto (autor) ; Pacheco Soriano, Ana Laura (autora) ;
Disponible en línea
Contenido en: Cadernos de Saúde Pública Volumen 36, número 6, e00110519 (2020), p. 1-16 ISSN: 1678-4464
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
59310-10 (Disponible)
Disponibles para prestamo: 1
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Resumen en: Inglés |
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The proliferation of arboviruses and their vectors is influenced by a complex interplay between vector, environment and human behaviors. The aim of this work is to analyze the influence of socio-environmental determinants on knowledge and practices regarding arboviruses transmission, among the residents of three communities on the southern border of Mexico. Between June 2017 and August 2018, a set of 149 households from three communities of Tapachula (Chiapas) and Villahermosa (Tabasco) were covered. This study consists of the application of a community prevention project. Different surveys and methodological approaches were used. Associations between socio-environmental determinants and knowledge and practices for arboviruses transmission control were estimated by odds ratio. Logistic regression and qualitative techniques were used. Although around 75% of households had an adequate knowledge about arboviruses’ origin and transmission, only 30% of them adopted adequate practices. Domestic risk practices were associated with serious deficiencies in water and sanitation services. Furthermore, a perception of greater risk and difficulty in complying with preventive measures were detected. An adequate knowledge does not necessarily lead to adequate prevention practices. Intermediate social determinants influence on the persistence of risk behaviors for arboviruses proliferation. Addressing such related aspects requires the achievement of an effective and sustainable vector management.


7.
Artículo
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Fine root density and vertical distribution of Leucaena leucocephala and grasses in silvopastoral systems under two harvest intervals
Montejo Martínez, David (autor) ; Díaz Echeverria, Víctor Francisco (autor) ; Villanueva López, Gilberto (autor) ; Aryal, Deb Raj (autor) ; Casanova Lugo, Fernando (autor) ; Canul Solís, Jorge Rodolfo (autor) ; Escobedo Mex, José Guadalupe (autor) ;
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Contenido en: Agroforest Syst Volumen 94, número 3 (June 2020), páginas 843-855 ISSN: 1572-9680
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Resumen en: Inglés |
Resumen en inglés

Understanding belowground morphological mechanisms of trees and grasses is a complicated task but can help in the design and management of silvopastoral systems. In this study, we evaluated the effect of the harvest intervals (i.e. 30 and 50 days) of aboveground biomass on the fine root density and vertical distribution in two silvopastoral systems (SPS): one comprising Leucaena leucocephala (legume tree) and Cynodon plectostachyus (grass) and the other L. leucocephala and Panicum maximum. We used a completely randomized design with four repetitions. We sampled fine roots by using a metal cylinder (8 cm diameter and 50 cm length) 7 days after each harvest. We washed the samples with pressurized water to separate them from the soil. The roots were digitalized at a resolution of 600 dpi to determine the diameter and specific root length by using IJ Rhizo Ò software. Samples were subsequently dried to quantify fine root mass. We found that the greater percentages of fine roots were between 0.4 and 0.8 mm for the legume and between 0.2 and 0.4 mm for grasses. The fine root length and mass density of P. maximum was higher (P\0.001) compared to C. plectostachyus in both harvest intervals. However, the fine root density of L. leucocephala did not vary between SPS (P> 0.05). The effect of harvest interval was significant only in some soil layers in both SPS (P> 0.05). Most of the pasture roots were found in the upper soil layer (0–20 cm), while L. leucocephala roots were present to deeper soil layers. We conclude that P. maximum has a greater rooting capacity and amore rapid recovery than C. plectostachyus, which has greater diameters and lower root density. However, L. leucocephala presented deeper and thicker fine rootsin both SPS, which is a good indication of its belowground recovery capacity to aboveground disturbances.


8.
Artículo
Home gardens' agrobiodiversity and owners' knowledge of their ecological, economic and socio-cultural multifunctionality: a case study in the lowlands of Tabasco, México
Avilez López, Teresita (autora) ; Van Der Wal, Hans (autor) ; Aldasoro Maya, Elda Miriam (autora) ; Rodríguez Robles, Ulises (autor) ;
Disponible en línea
Contenido en: Journal of Ethnobiology and Ethnomedicine Volumen 16, número 1 (July 2020), p. 1-13 ISSN: 1746-4269
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Background: Home gardens (HGs) are hotspots of in situ agrobiodiversity conservation. We conducted a case study in Tabasco, México, on HG owners’ knowledge of HG ecological, economical and socio-cultural multifunctionality and how it relates to agrobiodiversity as measured by species richness and diversity. The term multifunctionality knowledge refers to owners’ knowledge on how HGs contribute to ecological processes, family economy, as well as human relations and local culture. We hypothesized a positive correlation between owners’ multifunctionality knowledge and their HGs’ agrobiodiversity. Methods: We inventoried all perennial species in 20 HGs, determined observed species richness, calculated Shannon diversity indexes and analysed species composition using non-metric multidimensional scaling (NMDS). Based on literature, semi-structured interviews and a dialogue of knowledge with HG owners, we catalogued the locally recognized functions in the ecological, economic and socio-cultural dimensions. We determined the score of knowledge on each function in the three dimensions on explicit scales based on the interviews and observed management. We determined Spearman rs correlations of HGs’ observed species richness, Shannon diversity index (H) and of HGs’ scores on NMDS-axis and multifunctionality knowledge scores. We dialogued on the results and implications for agrobiodiversity conservation at workshops of HG owners, researchers and local organizations.

Results: HG agrobiodiversity and owners’ multifunctionality knowledge in the study area showed large variation. Average richness was 59.6 perennial species, varying from 21 to 107 species, and total observed richness was 280 species. A total of 38 functions was distinguished, with 14, 12 and 12 functions in the ecological, economic and socio-cultural dimensions. Total multifunctionality knowledge scores varied from 64.1 to 106.6, with an average of 87.2. Socio-cultural functionality knowledge scores were the highest, followed by scores in the ecological and economic dimensions. Species richness and Shannon H were significantly correlated with ecological functionality knowledge (rs=0.68 and P< 0.001 in both cases), and species richness was also correlated with economic functionality knowledge (rs=0.47, P= 0.03). Species composition scores on the first and second axes of NMDS was significantly correlated with knowledge of ecological multifunctionality, with rs= 0.49 resp-0.49 and P= 0.03 in both cases. Other functionality knowledge scores showed no correlation with NMDS scores. Dialogue in workshops confirmed the interwovenness of multifunctionality knowledge and agrobiodiversity. Conclusion: The rich agrobiodiversity of home gardens cherished by rural families in Tabasco relates with the knowledge about HG functionality in the ecological and economic dimensions. Also, species composition relates with ecological functionality knowledge. The socio-cultural functionality knowledge, which includes many elements beyondthe individual HG, is not correlated with agrobiodiversity, but had the highest scores. Our results show that multifunctionality knowledge provides many opportunities for the participative conception and planning of policies and actions necessary to conserve agrobiodiversity.


9.
- Capítulo de libro con arbitraje
Humedales costeros de agua dulce y bases para su gobernanza
Moreno Casasola, Patricia (autora) ; Aguirre Franco, Laura (autora) ; Campos Cascaredo, Adolfo (autor) ; Carral Murrieta, Cecilia O. (autora) ; Cejudo Espinoza, Eduardo (autor) ; González Marín, Rosa María (autora) ; González Nochebuena, Marco (autor) ; Hernández Alarcón, María Elizabeth (autora) ; Infante Mata, Dulce María (autora) ; Lazos Ruíz, Adi (autor) ; López Rosas, Hugo (autor) ; Monroy Ibarra, Roberto Clemente (autor) ; Neri Flores, Iris (autor) ; Peralta Peláez, Luis Alberto (autor) ; Rodríguez Medina, Karla (autora) ; Sánchez Higueredo, Lorena (autora) ; Sánchez García, Edgar Abel (autor) ; Sánchez Luna, Oscar (autor) ; Vázquez González, César (autor) ; Vázquez Benavides, Judith (autora) ;
Disponible en línea
Contenido en: Gobernanza y manejo de las costas y mares ante la incertidumbre. Una guía para tomadores de decisiones / Evelia Rivera-Arriaga, Isaac Azuz-Adeath, Omar D. Cervantes Rosas, Alejandro Espinoza-Tenorio, Rodolfo Silva Casarín, Alfredo Ortega-Rubio, Alfonso V. Botello y Beatriz E. Vega-Serratos, editores s.l. : Universidad Nacional Autónoma de México. Instituto de Ecología. Pesquerías y Oceanografía del Golfo de México : Universidad Autónoma de Campeche : Red Internacional de Costas y Mares, [2020] páginas 617-647 ISBN:978-607-8444-58-8
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A lo largo de las planicies costeras de México y detrás de los manglares, se extienden humedales de agua dulce alimentados por el flujo superficial de los ríos y el agua de escurrimiento de las sierras. Forman grandes extensiones principalmente en Veracruz, Tabasco y Chiapas y pueden ser de diferentes tipos, dependiendo sobre todo de su hidrología: en terrenos que permanecen inundados algunos meses al año se encuentran las selvas inundables, y en terrenos cubiertos por agua la mayor parte del año se encuentran humedales herbáceos (popales, tulares, carrizales). Debido a las diferencias en su composición de especies, en conjunto representan una alta diversidad biológica. Se establecen sobre suelos orgánicos que almacenan gran cantidad de agua y carbono, ayudando a reducir los picos de inundación, depurar el agua, y mitigar el cambio climático. Los datos de almacén de carbono y de almacenamiento de agua en el suelo, así como la capacidad para asimilar nutrientes y otros compuestos, muestra que sus servicios hidrológicos son de gran importancia para la sociedad. Gran parte de estos ecosistemas han sido transformados en distinto grado debido a las diferentes actividades económicas como la cría de ganado, la introducción de pastos forrajeros y, en el peor de los casos, su desecamiento para el desarrollo de las urbanizaciones. Además hay intereses conservacionistas. Algunos están regidos por la federación, otros por los estados y otros por los municipios.

Todo ello hace que su gobernanza sea muy compleja. A pesar de los esfuerzos y cambios paulatinos en el marco legal, el cual ha dado pie a la generación de algunos instrumentos que ayudan a su conservación como el cálculo de caudales ecológicos y los decretos de reservas de agua, así como la política de mitigación con base en captura de carbono, es necesario trabajar en el reconocimiento institucional para que estos ecosistemas tengan la importancia que merecen en las políticas públicas y en el sistema de conservación nacional.


10.
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Precipitous decline of white-lipped peccary populations in Mesoamerica
Thornton, Daniel (autor) ; Reyna Hurtado, Rafael Ángel (autor) ; Perera Romero, Lucy (autora) ; Radachowsky, Jeremy (autor) ; Hidalgo Mihart, Mircea Gabriel (autor) ; García Anleu, Rony (autor) ; McNab, Roan (autor) ; Mcloughlin, Lee (autor) ; Foster, Rebecca (autora) ; Harmsen, Bart (autor) ; Moreira Ramírez, José Fernando (autor) ; Diaz Santos, Fabricio (autor) ; Jordan, Christopher A. (autor) ; Salom Pérez, Roberto (autor) ; Meyer, Ninon France Victoire (autor) ; Castañeda, Franklin (autor) ; Elvir Valle, Fausto Antonio (autor) ; Ponce Santizo, Gabriela (autora) ; Amit, Ronit (autora) ; Arroyo Arce, Stephanny (autora) ; Thomson, Ian (autor) ; Moreno, Ricardo (autor) ; Schank, Cody J. (autor) ; Arroyo Gerala, Paulina (autora) ; Bárcenas, Horacio V. (autor) ; Brenes Mora, Esteban (autor) ; Calderón, Ana Patricia (autora) ; Cove, Michael V. (autor) ; Gómez Hoyos, Diego (autor) ; González Maya, José F. (autor) ; Guy, Danny (autor) ; Hernández Jiménez, Gerobuam (autor) ; Hofman, Maarten (autor) ; Kays, Roland (autor) ; King, Travis (autor) ; Martinez Menjivar, Marcio Arnoldo (autor) ; Maza, Javier de la (autor) ; León Pérez, Rodrigo (autor) ; Ramos, Víctor Hugo (autor) ; Rivero Hernández, Crysia Marina (autora) ; Romo Asunción, Sergio (autor) ; Juárez López, Rugieri (autor) ; Jesús de la Cruz, Alejandro (autor) ; De la Torre, Jesús Antonio (autor) ; Towns, Valeria (autora) ; Schipper, Jan (autor) ; Portillo Reyes, Hector Orlando (autor) ; Artavia, Adolfo (autor) ; Hernández Pérez, Edwin Luis Oswaldo (autor) ; Martínez, Wilber (autor) ; Urquhart, Gerald R. (autor) ; Quigley, Howard (autor) ; Pardo, Lain E. (autor) ; Sáenz, Joel C. (autor) ; Sanchez, Khiavett (autora) ; Polisar, John (autor) ;
Contenido en: Biological Conservation Vol. 242, no. 108410 (2020), p. 1-12 ISSN: 0006-3207
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Resumen en: Inglés |
Resumen en inglés

Large mammalian herbivores are experiencing population reductions and range declines. However, we lack regional knowledge of population status for many herbivores, particularly in developing countries. Addressing this knowledge gap is key to implementing tailored conservation strategies forspecies whose population declines are highly variable across their range. White-lipped peccaries (Tayassupecari) are important ecosystem engineers in Neotropical forests and are highly sensitive to human disturbance. Despite maintaining a wide distributional range, white-lipped peccaries are experiencing substantial population declines in some portions of their range.We examined the regional distribution and population status of the species in Mesoamerica. We used a combination of techniques, including expert-based mapping and assessment of population status, and data-driven distribution modelling techniques to determine the status and range limits of white-lipped peccaries. Our analysis revealed declining and highly isolated populations of peccaries across Mesoamerica, with a range reduction of 87% from historic distribution and 63% from current IUCN range estimates for the region. White-lipped peccary distribution is affected by indices of human influence and forest cover, and more restricted than other sympatric large herbivores, with their largest populations confined to transboundary reserves. To conserve white-lipped peccaries in Mesoamerica, transboundary efforts will be needed that focus on both forest conservation and hunting management, increased cross-border coordination, and reconsideration of country and regional conservation priorities. Our methodology to detail regional white-lipped peccary status could be employed on other poorly-known large mammals.