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179 resultados encontrados para: AUTOR: Infante, Francisco
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1.
- Artículo con arbitraje
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While [CO2] effects on growth and secondary chemistry are well characterized for annual plant species, little is known about perennials. Among perennials, production of Coffea arabica and C. canephora (robusta) have enormous economic importance worldwide. Three Arabica cultivars (Bourbon, Catimor, Typica) and robusta coffee were grown from germination to ca. 12 months at four CO2 concentrations: 300, 400, 500 or 600 ppm. There were significant increases in all leaf area and biomass markers in response to [CO2] with significant [CO2] by taxa differences beginning at 122–124 days after sowing (DAS). At 366–368 DAS, CO2 by cultivar variation in growth and biomass response among Arabica cultivars was not significant; however, significant trends in leaf area, branch number and total above-ground biomass were observed between Arabica and robusta. For caffeine concentration, there were significant differences in [CO2] response between Arabica and robusta. A reduction in caffeine in coffee leaves and seeds might result in decreased ability against deterrence, and consequently, an increase in pest pressure. We suggest that the interspecific differences observed (robusta vs. Arabica) may be due to differences in ploidy level (2n = 22 vs. 2n = 4x = 44). Differential quantitative and qualitative responses during early growth and development of Arabica and robusta may have already occurred with recent [CO2] increases, and such differences may be exacerbated, with production and quality consequences, as [CO2] continues to increase.


2.
- Artículo con arbitraje
The biology of Antiteuchus innocens (Hemiptera: Pentatomidae) under field conditions
Holguín Meléndez, Francisco (autor) ; González Gómez, Rebeca (autora) ; Valle Mora, Javier Francisco (autor) ; Infante, Francisco (autor) ; Huerta Palacios, Graciela (autora) ;
Disponible en línea
Contenido en: Florida Entomologist Vol. 102, no. 1 (April 2019), p. 85-89 ISSN: 0015-4040
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Resumen en: Español | Inglés |
Resumen en español

Antiteuchus innocens Engleman & Rolston (Hemiptera: Pentatomidae) es una chinche fitófaga que se alimenta de varias especies de pinos en las montañas de Chiapas, México. Hasta ahora se desconoce la biología y ecología de esta especie en los ecosistemas de pinos. En el presente trabajo se presenta información relacionada con el ciclo de vida de A. innocens con el objetivo de proporcionar información que permita esclarecer su papel como plaga de los pinos. Nuestras observaciones de campo verificaron que, los primeros adultos de A. innocens, típicamente aparecen en abril de cada año y alcanzan la abundancia más alta en mayo. Posteriormente, los adultos disminuyen gradualmente y para noviembre ya no son detectables. Las masas de huevos de esta chinche son puestas en la parte abaxial de las ramas primarias, y sobre los estróbilos femeninos de los pinos. Después de la eclosión de huevos, la hembra permanece con sus crías, presuntamente para brindarles cuidado maternal. Determinamos que A. innocens es una chinche oligófaga que se alimenta sobre Pinus oocarpa Shiede, Pinus maximinoi H.E. Moore, y Pinus devoniana Lindley (todos Pinaceae). Esta especie es univoltina bajo las condiciones climáticas de Chiapas, con un ciclo de vida de aproximadamente 310 d de huevo a adulto. Los tiempos para el desarrollo de inmaduros de A. innocens son como sigue (media ± ES): 8 (0.66), 8 (0.92), 41 (7.5), 79 (8.1), 122 (5.9), y 52 (6.9) días, para la incubación de huevos, primero, segundo, tercero, cuarto, y quinto instar, respectivamente. La longevidad de adultos fue estimada en 54 d. La duración más larga (> 4 meses) of A. innocens en el cuarto instar, indica la posibilidad de pasar por una diapausa, sin embargo, este hecho no fue verificado.

Resumen en inglés

Antiteuchus innocens Engleman & Rolston (Hemiptera: Pentatomidae) feeds on several species of pines in the highlands of Chiapas, Mexico. The biology and ecology of this species in pine ecosystems is unknown. In this paper, information concerning the life cycle of A. innocens is presented with the objective of providing information that elucidates its role as a pest of pines. Our field observations verified that the first adults of A. innocens typically appear by Apr of each year and reach the highest abundance in May. Afterwards, adults decrease gradually and are undetectable by Nov. Egg masses are laid on abaxial regions of primary branches, and on female strobili of pines. Following egg-hatching, the female remains with its brood, presumably for maternal care. We determined that A. innocens is an oligophagous species, feeding on Pinus oocarpa Shiede, Pinus maximinoi H.E. Moore, and Pinus devoniana Lindley (all Pinaceae). This species is univoltine under the climatic conditions of Chiapas, with a life cycle of about 310 d from egg to adult. Juvenile development of A. innocens is as follows (mean ± SE): 8 (0.66), 8 (0.92), 41 (7.5), 79 (8.1), 122 (5.9), and 52 (6.9) d for egg incubation, first, second, third, fourth, and fifth instar, respectively. The longevity of adults was estimated as 54 d. The longest duration (> 4 mo) of A. innocens occurred in the fourth instar, suggesting the possibility of diapause in this instar; however, this was not verified.


3.
Artículo
Chinches piratas: aliados importantes contra las plagas agrícolas / Lucia Carrillo-Arámbula y Francisco Infante
Carrillo Arámbula, Lucía ; Infante, Francisco ;
Contenido en: Biodiversitas No. 146 (septiembre-octubre de 2019), p. 8-11 ISSN: 1870-1760
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Resumen en: Español |
Resumen en español

La palabra chinche se usa de manera genérica para designar a un grupo de insectos muy diverso de miles de especies dentro del orden Hemiptera. Es posible que la mayoría de la gente esté más familiarizada con los grupos de especies comúnmente conocidos como “chinches de cama”, “chinches besuconas”, “chinches de agua”, “chinches verdes”, “chinches cafés”, “chinches arlequines”, etc. Quizá muy pocos hayan escuchado hablar de las “chinches piratas”, un grupo de insectos muy comunes en huertos y campos agrícolas, reconocidos por sus asombrosos hábitos depredadores sobre otros insectos y ácaros. Las chinches piratas miden de 1 a 5 mm de longitud en el estado adulto. Son de cuerpo ovalado y aplanado, de color negro o marrón y con prominentes ojos rojos. Las ninfas son más pequeñas y presentan una coloración que puede ser amarilla, naranja o café, dependiendo de la especie de chinche que se trate y su alimentación. Estos insectos pertenecen a la familia Anthocoridae, cuya distribución es mundial y está constituida por aproximadamente 500 especies. Su nombre común (pirata) no denota que tengan algún rasgo particular en los ojos, sino más bien a los patrones de coloración sombreada en sus alas, que les dan una apariencia de manchas de colores claros y oscuros.


4.
Artículo
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Efficacy of selected insecticides against Frankliniella spp. (Thysanoptera: Thripidae) in mango orchards
Lucero, Fidel ; Infante, Francisco (coaut.) ; Pérez López, Elsa Jeanneth (coaut.) ; Valle Mora, Javier Francisco (coaut.) ; Esquinca Avilés, Héctor Armando (coaut.) ; Castillo Vera, Alfredo (coaut.) ; Ortíz, José A. (coaut.) ;
Contenido en: Journal of Entomological Science Vol. 54, no. 2 (April 2019), p. 94-97 ISSN: 1366-638X
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5.
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The parasitic nematode Metaparasitylenchus hypothenemi interferes with the endoparasitoid Phymastichus coffea, in the biological control of the coffee berry borer
Castillo Vera, Alfredo (autor) ; Infante, Francisco (autor) ;
Contenido en: Biocontrol Science and Technology Vol. 29, no. 4 (2019), p. 388-392 ISSN: 1360-0478
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Resumen en: Inglés |
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We studied the interaction of Metaparasitylenchus hypothenemi with the exotic parasitoid Phymastichus coffea, when both natural enemies, co-ocurred inside the coffee berry borer adult. The nematode affects larvae and pupae ofP. coffea, reducing by ten times the parasitoid’s adult progeny. We concluded that the negative effect caused by M. hypothenemi on the survival and development of juvenile stages of P. coffea could affect the action of this parasitoid as a natural enemy of this pest.


6.
- Artículo con arbitraje
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Dipteran diversity and ecological succession on dead pigs in contrasting mountain habitats of Chiapas, Mexico
Mañas Jordá, Saray (coaut.) ; León Cortés, Jorge Leonel (coaut.) ; García García, Ma. Dolores (coaut.) ; Caballero Pérez, Ubaldo (coaut.) ; Infante, Francisco (coaut.) ;
Contenido en: Journal of Medical Entomology Vol. 55, no. 1 (January 2018), p. 59-68 ISSN: 0022-2585
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A comparative study of Diptera communities associated with pig carcasses was carried out in urban and natural settings in tropical mountain habitats of Southern Mexico. Schoenly-type traps were used to set out pig carcasses during 68 d of sampling effort. In total, 1,703 adult Diptera specimens were collected in both localities combined, and recording a total of 30 (morpho) species and 19 families. Compared to natural habitats, a significantly greater diversity in urban habitats, as well as a faster decomposition process of carcasses, was detected. Significant differences were also detected for the composition and structure of Dipteran communities between urban and natural sites. Dominant species of Calliphoridae for natural and urban habitats were represented by Compsomyiops spp. and Cochliomyia macellaria (Fabricius; Diptera: Calliphoridae), respectively. The properties of indicator species for urban and natural sites are discussed. Twenty Dipteran species were significantly associated to different decomposition stages. Such affinity would allow for estimating the post-mortem interval (PMI) in comparable situations.


7.
- Artículo con arbitraje
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Pest management strategies against the coffee berry borer (Coleoptera: Curculionidae: Scolytinae)
Infante, Francisco ;
Contenido en: Journal of Agricultural and Food Chemistry Vol. 66, no. 21 (May 2018), p. 5275-5280 ISSN: 0021-8561
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Resumen en: Inglés |
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Coffee (Coffea arabica and C. canephora) is one of the most widely traded agricultural commodities and the main cash crop in ∼80 tropical countries. Among the factors that limit coffee production, the coffee berry borer, Hypothenemus hampei (Ferrari) has been considered the main insect pest, causing losses of over U.S. $500 million dollars annually. Control of this pest has been hindered by two main factors: the cryptic nature of the insect (i.e., protected inside the coffee berry) and the availability of coffee berries in the field allowing the survival of the pest from one generation to the next. Coffee berry borer control has primarily been based on the use of synthetic insecticides. Management strategies have focused on the use of African parasitoids (Cephalonomia stephanoderis, Prorops nasuta, and Phymastichus coffea), fungal entomopathogens (Beauveria bassiana), and insect traps. These approaches have had mixed results. Recent work on the basic biology of the insect has provided novel insights that might be useful in developing novel pest management strategies. For example, the discovery of symbiotic bacteria responsible for caffeine breakdown as part of the coffee berry borer microbiome opens new possibilities for pest management via the disruption of these bacteria. Some chemicals with repellent propieties have been identified, and these have a high potential for field implementation. Finally, the publication of the CBB genome has provided insights on the biology of the insect that will help us to understand why it has been so successful at exploiting the coffee plant. Here I discuss the tools we now have against the CBB and likely control strategies that may be useful in the near future.


8.
Artículo
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Resumen en: Español |
Resumen en español

La salud ambiental es la disciplina que se ocupa de las interrelaciones del hombre y otros seres vivos con el ambiente, los cambios naturales o inducidos, la contaminación en el ambiente y sus posibles consecuencias en la salud humana. Presentamos un panorama sintético de los impactos generados por el ser humano sobre el ambiente y la biodiversidad, en particular la degradación y cambio del entorno natural, y sus posibles consecuencias en la salud humana. Los objetivos de este trabajo fueron: 1) exponer brevemente el quehacer de la epidemiología ambiental, en particular lo relativo a las causas de morbilidad y mortalidad producto de la exposición involuntaria a agentes contaminantes o infecciosos; y 2) discutir el problema del cambio climático y su repercusión en los componentes del ambiente y la salud humana, así como la posible alteración de la dinámica de las sociedades como consecuencia de la ocurrencia de patrones climáticos atípicos. Concluimos que la problemática ambiental tiene un alto impacto sobre la salud de la población humana –y de muchos otros seres vivos–, por lo que es necesario establecer programas efectivos de mitigación al cambio climático global.


9.
- Artículo con arbitraje
Thrips (Thysanoptera) attracted to carrion-baited traps in the tropical highlands of Chiapas, Mexico
Infante, Francisco ; Mañas Jordá, Saray (coaut.) ; Mound, Laurence A. (coaut.) (1934-) ; León Cortés, Jorge Leonel (coaut.) ;
Contenido en: Canadian Entomologist Vol. 150, no. 3 (June 2018), p. 361-365 ISSN: 0008-347X
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Over 1000 species of arthropods have been recorded from cadavers worldwide. While conducting a study on the diversity and abundance of insects associated with pig (Sus scrofa Linnaeus; Mammalia: Suidae) carrion in the highlands of Chiapas, Mexico, we noticed the presence of thrips (Thysanoptera) in the collecting containers of traps. The thrips collected comprised the following species: Aeolothrips species (Aeolothripidae), Frankliniella brunnea Priesner (Thripidae), Frankliniella fusca (Hinds), Frankliniella trinidadensis Hood, Neohydatothrips portoricensis (Morgan) (Thripidae), Thrips simplex (Morison) (Thripidae), Wegenerithrips admirabilis Johansen (Thripidae), and Stephanothrips bradleyi Hood (Phlaeothripidae). These species were taken in Schoenly traps, a device designed to catch sarcosaprophagous insects. The thrips species reported in the present study have not previously been recovered from decomposing cadavers, and their occurrence suggests an attraction to one or more components of the trap, rather than an incidental presence. Albeit thrips are not considered forensically important, more studies are needed to elucidate their role in carrion ecology.


10.
- Artículo con arbitraje
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Artificial diet sandwich reveals subsocial behaviour in the coffee berry borer Hypothenemus hampei (Coleoptera: Curculionidae: Scolytinae)
Vega, Fernando E. ; Simpkins, Ann M. (coaut.) ; Rodríguez Soto, Marian M. (coaut.) ; Infante, Francisco (coaut.) ;
Contenido en: Journal of Applied Entomology Vol. 141, no. 6 (July 2017), p. 470-476 ISSN: 1439-0418
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Resumen en: Inglés |
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An artificial diet sandwich, consisting of coffee berry borer artificial diet within two glass plates, has been developed to elucidate the behaviour of the coffee berry borer, an insect that in nature spends most of its life cycle inside the coffee berry. Various types of behaviour have been observed for the first time, including gallery construction, oviposition, gallery blocking, mating and most remarkably, subsocial tasks such as maternal sanitation and tending of eggs and larvae. This observational technique is a break- through for studies and manipulations of the coffee berry borer’s social behaviour and could be applicable to other bark beetles, consequently yielding important insights into the origin of parental care in scolytine beetles.