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18 resultados encontrados para: AUTOR: Pérez López, Elsa Jeanneth
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1.
- Artículo con arbitraje
A coffee berry borer (Coleoptera: Curculionidae: Scolytinae) bibliography
Pérez López, Elsa Jeanneth ; Infante, Francisco (coaut.) ; Vega, Fernando E. (coaut.) ;
Contenido en: Journal of Insect Science Vol. 15, no. 1 (2015), p. 1-41 ISSN: 1536-2442
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Resumen en: Inglés |
Resumen en inglés

Native to Africa, the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae), has gradually invaded most coffee-growing areas worldwide. Adult females colonize the coffee berry and oviposit within galleries in the coffee seeds. Larvae and adults consume the seeds, resulting in drastic reductions in yields and quality, negatively affecting the income of approximately 20 million coffee-growing families (∼100 million people) in ∼80 countries, with losses surpassing more than $500 million annually (Vega et al. 2015). It has become evident that the coffee berry borer scientific community could greatly benefit from having access to a bibliography of the literature related to the insect. Such an information source would allow scientists to find out what research areas have been explored throughout the many coffee berry borer-infested countries after more than 100 years of research on the topic. It could also help to direct lead future research efforts into novel areas, and away from topics and ideas that have been thoroughly investigated in the past. The first coffee berry borer bibliography was published by Friederichs (1925b) and included 108 references. Four additional bibliographies (IICA 1963, 1964, 1973, 1985) include 163, 328, 655, and 257 references, respectively. The present bibliography includes 1,865 peer and nonpeer reviewed papers (excluding theses). The references are in five predominant languages: Spanish, English, Portuguese, Dutch, and French. Twelve databases were used to compile the references (AGRICOLA, AGRIS, BIOSIS Previews, Biological Abstracts, CAB Abstracts, Food Science and Technology Abstracts, Google Scholar, Medline, SCOPUS, Web of Science, Wildlife & Ecology Studies Worldwide, and Zoological Record). Hundreds of references not captured by the databases were included after consulting our coffee berry borer literature collections.


2.
- Artículo con arbitraje
Natural parasitism of Metaparasitylenchus hypothenemi (Tylenchida: Allantonematidae) on the coffee berry borer in Chiapas, Mexico
Pérez López, Elsa Jeanneth ; Infante, Francisco (coaut.) ; Poinar Jr., George (coaut.) ; Castillo Vera, Alfredo (coaut.) ; Vega, Fernando E. (coaut.) ;
Contenido en: Biocontrol Science and Technology Vol. 25, no. 5 (February 2015), p. 608-612 ISSN: 1360-0478
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Resumen en: Inglés |
Resumen en inglés

We assessed the parasitism of Metaparasitylenchus hypothenemi on its host, the coffee berry borer, in 20 coffee plantations of Mexico. A total of 23,568 adult borers were dissected, with 179 of these infected with nematodes (0.76% infection rate). Although the level of parasitism is not encouraging, the nematode is another natural enemy, which limits the population growth of this pest in Mexico.


3.
- Artículo con arbitraje
PDF
Resumen en: Inglés |
Resumen en inglés

The composition and seasonal occurrence of sandflies were investigated in coffee agroecosystems in the Soconusco region of Chiapas, Mexico. Insect sampling was performed on three plantations located at different altitudes: Finca Guadalupe Zajú [1,000 m above sea level (a.s.l.)], Finca Argovia (613 m a.s.l.) and Teotihuacán del Valle (429 m a.s.l.). Sandflies were sampled monthly from August 2007-July 2008 using three sampling methods: Shannon traps, CDC miniature light traps and Disney traps. Sampling was conducted for 3 h during three consecutive nights, beginning at sunset. A total of 4,387 sandflies were collected during the course of the study: 2,718 individuals in Finca Guadalupe Zajú, 605 in Finca Argovia and 1,064 in Teotihuacán del Valle. The Shannon traps captured 94.3% of the total sandflies, while the CDC light traps and Disney traps captured 4.9% and 0.8%, respectively. More females than males were collected at all sites. While the number of sandflies captured was positively correlated with temperature and relative humidity, a negative correlation was observed between sandfly numbers and rainfall. Five species of sandflies were captured: Lutzomyia cruciata, Lutzomyia texana, Lutzomyia ovallesi, Lutzomyia cratifer / undulata and Brumptomyia sp. Lu. cruciata, constituting 98.8% of the total, was the most abundant species. None of the captured sandflies was infected with Leishmania spp.


4.
- Artículo de divulgación
*En hemeroteca, SIBE-Campeche, SIBE-Chetumal, SIBE-San Cristóbal, SIBE-Tapachula, SIBE-Villahermosa
100 años después de una invasión biológica
Infante, Francisco ; Pérez López, Elsa Jeanneth (coaut.) ; Vega, Fernando E. (coaut.) ;
Contenido en: ECOFronteras No. 47 (enero-abril 2013), p. 18-20
Cerrar
SIBE Campeche
52346-40 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Chetumal
52346-50 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
52346-10 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
52346-30 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Villahermosa
52346-20 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Campeche, SIBE-Chetumal, SIBE-San Cristóbal, SIBE-Tapachula, SIBE-Villahermosa
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5.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Anastrepha egg deposition induces volatiles in fruits that attract the parasitoid Fopius arisanus
Pérez López, Elsa Jeanneth ; Rojas, Julio C. (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Castillo Vera, Alfredo (coaut.) ;
Contenido en: Bulletin of Entomological Research Vol. 103, no. 3 (Jun 2013), p. 318-325 ISSN: 0007-4853
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
37428-20 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

Fopius arisanus is a solitary egg–pupal endoparasitoid that attacks several species of tephritid fruit flies, particularly Bactrocera spp. This species, indigenous from the Indo-Australian region, was introduced into Mexico for biological control purposes. From the standpoint of the ‘new associations’ concept this parasitoid has been evaluated against fruit flies in the Anastrepha complex. We investigated the specificity of F. arisanus responses to fruits infested with two species of Anastrepha.We examined whether fruit volatiles attractive to this parasitoid are induced as a result of fruit fly oviposition. We also investigated whether F. arisanus females are able to discriminate between the oviposition-induced volatiles from host eggs parasitised by conspecifics and volatiles from unparasitised eggs. All experiments were performed in a wind tunnel. Results showed that mango fruits infested with A. ludens eggs (2–3 days after egg deposition) were significantly more attractive to naïve F. arisanus females compared with non-infested fruits or fruits infested with larvae. In addition, guava fruits harbouring A. striata eggs were significantly more attractive to the parasitoid than non-infested fruits or fruits infested with larvae.

Thus, the parasitoid was attracted to fruits with eggs, but fruit and fly species did not influence the parasitoid attraction. We also found that F. arisanus females were more attracted to fruits exposed to fertile A. ludens females (i.e. fruits with eggs inside) compared with fruits exposed to sterile females (i.e. fruits with no eggs inside) or fruits with mechanical damage. Parasitoid females were not attracted to A. ludens eggs. The results suggest that the presence of eggs induces volatiles that attract parasitoids. Finally, we found that F. arisanus was able to discriminate between fruits with unparasitised eggs vs. eggs parasitised by conspecifics, indicating that host discrimination could be mediated by olfactory cues.


6.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Field-cage evaluation of the parasitoid Phymastichus coffea as a natural enemy of the coffee berry borer, Hypothenemus hampei
Infante, Francisco ; Castillo Vera, Alfredo (coaut.) ; Pérez López, Elsa Jeanneth (coaut.) ; Vega, Fernando E. (coaut.) ;
Contenido en: Biological Control Vol. 67, no. 4 (December 2013), p. 446–450 ISSN: 1049-9644
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
52949-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

Phymastichus coffea LaSalle (Hymenoptera: Eulophidae) is an African parasitoid that has been imported to Mexico and other Latin American countries for the biological control of the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae). As a part of the evaluation of this natural enemy in Mexico, we conducted a series of parasitoid inclusion cage experiments to evaluate parasitism rates under different parasitoid:borer ratios (1:5, 1:10, 1:15, 1:20 and 1:30) using entomological sleeves. The presence of P. coffea inside the sleeves did not affect avoid the perforation of coffee berries by the borers, but damages to berries were significantly diminished. Borers that did not enter coffee berries were more susceptible to be parasitized by P. coffea than borers that entered inside berries (i.e., borers that perforated the endosperm). The treatment resulting in the highest level of parasitism was the 1:5 parasitoid:borer ratio, which had 79% parasitism when borers where outside berries. In general, the highest percentage of parasitism occurred when the highest proportion of parasitoids was used. The 1:5 and 1:10 parasitoid:borer ratio resulted in the highest parasitism. The use of P. coffea resulted in a 2.2 - 3.1 fold lower coffee berry borer damage to the seeds weight, showing the beneficial effect of this natural enemy. The weight of coffee seeds significantly decreased in treatments where no parasitoids were used (control) and in treatments with the highest number of borers. All treatments that received parasitoids to control the coffee berry borer had a higher seed weight than the control. Our studies indicate that P. coffea has a strong potential to become an effective biological control agent against the coffee berry borer.


7.
Artículo - Nota científica con arbitraje
Redirect research to control coffee pest.
Infante, Francisco ; Pérez López, Elsa Jeanneth (coaut.) ; Vega, Fernando E. (coaut.) ;
Contenido en: Nature Vol. 489, no. 7417 (September 2012), p. 502 ISSN: 0028-0836

8.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Size, shape and hue modulate attraction and landing responses of the braconid parasitoid Fopius arisanus to fruit odour-baited visual targets
Pérez López, Elsa Jeanneth ; Rojas, Julio C. (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Liedo Fernández, Pablo (coaut.) ; González, Francisco J. (coaut.) ; Castillo Vera, Alfredo (coaut.) ;
Contenido en: BioControl Vol. 57, no. 3 (Jun 2012), p. 405-414 ISSN: 1386- 6141
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
34799-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

Female parasitoids are guided by multisensory information, including chemical and physical cues during host location. In the present study, we investigated the behavioural responses of naïve Fopius arisanus (Sonan) females to visual targets baited with guava odour. In non-choice wind tunnel tests, the attraction and landing responses of parasitoids to spheres painted with different colours, and targets of different shapes and sizes were evaluated. Females were more frequently attracted and landed more often on dark yellow targets than on targets with other colours. There was no correlation between the brightness of each colour and the attraction or landing responses. In contrast, both responses were correlated with relative reflectance (hue) of the coloured targets. A positive correlation was observed between attraction and hue, and a negative correlation between landing and hue. F. arisanus was attracted to and landed more often on spheres than on other shape models. The attraction response of this parasitoid was affected by the size of the targets, with spheres of 10 and 12 cm diameter being more attractive than spheres of 8, 6 and 4 cm diameter. The fact that F. arisanus females were able to discriminate among visual targets that differ in colour, shape and size stresses the importance of vision during host location by this species.


9.
Tesis - Doctorado
Búsqueda de hospedero de Fopius arisanus en su nueva asociación con Anastrepha spp. / Elsa Jeanneth Pérez López
Pérez López, Elsa Jeanneth ; Rojas, Julio C. (tutor) ; Montoya Gerardo, Pablo Jesús (asesor) ; Liedo Fernández, Pablo (asesor) ; Castillo Vera, Alfredo (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2011
Clasificación: TE/632.774 / P47
Cerrar
SIBE Campeche
ECO040004633 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Chetumal
ECO030007562 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
ECO010015184 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
ECO020011854 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Villahermosa
ECO050004879 (Disponible)
Disponibles para prestamo: 1
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Índice | Resumen en: Español |
Resumen en español

Fopius arisanus (Sonan) es un endoparasitoide huevo-pupa que ataca varias especies de Tephritidae, particularmente dentro del género Bactrocera. Bajo el concepto de “nuevas asociaciones” este parasitoide está siendo evaluado para el control biológico de moscas del género Anastrepha. En el presente estudio se investigó el comportamiento de búsqueda de hospedero de F. ariasnus en esta nueva asociación. Se evaluó la respuesta comportamental de las hembras inexpertas a estímulos visuales de diferente color, forma y tamaño, cebados con el olor de frutos de guayaba. Se encontró que la reflectancia relativa (tono) de los colores evaluados estuvo correlacionada positivamente con la atracción y de manera negativa con el aterrizaje de F. arisanus. El parasitoide fue más atraído hacia esferas amarillas que hacia los otros colores evaluados. En bioensayos donde se usaron volátiles de frutos de mango y guayaba infestados con huevos de A.ludens o A. striata, se encontró que las hembras de F. arisanus fueron más atraídas hacia los volátiles de frutos infestados con huevos, en comparación con frutos sin infestar o frutos infestados con larvas.

Se determinó que la atracción del parasitoide no está influenciada por la especie de mosca de la fruta o la especie de fruto. En otros experimentos, las hembras de este himenóptero fueron menos atraídas a frutos con daño mecánico que a frutos que albergaban huevos del hospedero. Los resultados obtenidos sugieren que la presencia de los huevos induce la emisión de volátiles que atraen al parasitoide. Por otra parte, se determinó que F. arisanus puede discriminar frutos de guayaba con huevos parasitados por conespecíficos sobre aquellos frutos que contienen huevos sin parasitar, indicando que la discriminación en esta especie puede estar mediada por señales olfativas. Factores tales como la edad, la carga ovárica y el ayuno de F. arisanus modifican la respuesta de este parasitoide a los volátiles emitidos por frutos infestados con huevos de su hospedero. Finalmente, se identificaron algunos compuestos presentes en la mezcla de volátiles emitidos por frutos infestados, que podrían ser los responsables de la atracción del parasitoide. Sin embargo, se requiere llevar a cabo evaluaciones adicionales para corroborar el papel de estos compuestos en la atracción. En conclusión, los resultados derivados de este trabajo demuestran que durante el proceso de búsqueda de hospedero en esta nueva asociación, las hembras inexpertas de F. arisanus emplean señales visuales y químicas, estas últimas inducidas en los frutos como respuesta a la oviposición de Anastrepha spp.

Índice

Capítulo I. Introducción general
1.1. El control biológico de insectos plaga
1.2. Las nuevas asociaciones en control biológico
1.3. Búsqueda y selección de hospedero en parasitoides
1.3.1. El papel de la olfacción en la búsqueda de hospedero
1.3.1.1. Infoquímicos de largo alcance
1.3.1.2. Infoquímicos de corto alcance
1.3.2. El papel de la visión en la búsqueda de hospedero
1.3.3. Factores que afectan el comportamiento de búsqueda de hospedero
1.3.3.1. Factores internos
1.3.3.2. Factores externos
1.3.3.3. Factores abióticos
1.3.3.4. Factores bióticos
1.3.3.5. Factores adquiridos
1.4. Modelo de estudio
1.5. Historia de vida de Fopius arisanus
1.5.1. Biología
1.5.2. Búsqueda de hospedero de Fopius arisanus
1.5.3. Fopius arisanus como agente de control biológico
1.6. Objetivos
1 1.6.1. Objetivo general
1.6.2. Objetivos específicos
Capítulo II. Uso de señales visuales durante la búsqueda de hospedero
2.1. Introducción
2.2. Materiales y métodos
2.2.1. Insectos
2.2.2. Bioensayos
2.2.3. Respuesta a modelos de diferente color
2.2.4. Respuesta a modelos de diferente forma
2.2.5. Respuesta a modelos de diferente tamaño
2.2.6. Análisis estadístico
2.3. Resultados
2.3.1. Respuesta a modelos de diferente color
2.3.2. Respuesta a modelos de diferente forma
2.3.3. Respuesta a modelos de diferente tamaño
2.4. Discusión
Capítulo III. Respuesta comportamental de Fopius arisanus a estímulos químicos procedentes del complejo planta-Anastrepha spp
3.1. Introducción
3.2. Materiales y métodos
3.2.1. Insectos
3.2.2. Bioensayos
3.2.3. Fuente de olor
3.2.4. Experimento 1: Especificidad de la respuesta de F. arisanus
3.2.5. Experimento 2: ¿Son los volátiles inducidos por la oviposición de Anastrepha los que afectan la respuesta de las hembras de F. arisanus?

3.2.6. Experimento 3: ¿Pueden las hembras de F. arisanus discriminar a distancia los hospederos parasitados por con-específicos de los no parasitados?
3.2.7. Análisis estadístico
3.3. Resultados
3.3.1. Experimento 1: Especificidad de la respuesta de F. arisanus
3.3.2. Experimento 2: ¿Son los volátiles inducidos por la oviposición de Anastrepha los que afectan la respuesta de las hembras de F. arisanus?
3.3.3. Experimento 3: ¿Pueden las hembras de F. arisanus discriminar a distancia los hospederos parasitados por con-específicos de los no parasitados?
3.4. Discusión
Capítulo IV. Compuestos químicos involucrados en la atracción de F. arisanus a volátiles emitidos por frutos de guayaba infestados
4.1. Introducción
4.2. Materiales y métodos
4.2.1. Colecta de volátiles
4.2.2. Pruebas electrofisiológicas
4.2.2.1. Electroantenografía (EAG)
4.2.2.2. Cromatografía de gases acoplada a electro-anteno-detección (EAD-CG)
4.2.3. Respuesta comportamental a volátiles modificados in situ
4.2.4. Respuesta comportamental a extractos de frutos de guayaba infestados
4.2.5. Análisis químico de los volátiles colectados
4.2.6. Análisis estadístico
4.3. Resultados
4.3.1. Electroantenografía (EAG)
4.3.2. Cromatografía de gases acoplada a electro-anteno-detección (EAD-CG)
4.3.3. Respuesta comportamental a volátiles modificados in situ
4.3.4. Respuesta comportamental a extractos de frutos de guayaba infestados
4.3.5. Volátiles colectados de frutos de guayaba
4.3.6. Análisis de los volátiles obtenidos con diferentes filtros
4.4. Discusión
Capítulo V. Factores que influyen el comportamiento de búsqueda de hospedero
5.1. Introducción
5.2. Materiales y métodos
5.2.1. Insectos
5.2.2. Bioensayos
5.2.3. Influencia de la edad
5.2.4. Influencia del estado reproductivo
5.2.5. Influencia del ayuno
5.2.6. Influencia de la oviposición

5.2.7. Análisis estadístico
5.3. Resultados
5.3.1. Influencia de la edad
5.3.2. Influencia del estado reproductivo
5.3.3. Influencia del ayuno
5.3.4. Influencia de la oviposición
5.4. Discusión
Capítulo VI. Discusión general
Literatura citada


10.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
The biology of phymastichus coffea Lasalle (Hymenoptera: eulophidae) under field conditions
Espinoza Ávalos, Julio ; Infante, Francisco (coaut.) ; Castillo Vera, Alfredo (coaut.) ; Pérez López, Elsa Jeanneth (coaut.) ; Nieto López, María Guadalupe (coaut.) ; Pinson, Erika P. (coaut.) ; Vega, Fernando E. (coaut.) ;
Contenido en: Biological Control Vol. 49, no. 3 (June 2009), p. 227-233 ISSN: 1049-9644
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
48431-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

The coffee berry borer (CBB) Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae) was accidentally introduced into México in 1978, and rapidly became the main pest of coffee. As an exotic pest, its management has been mainly based on biological control methods through the introduction of parasitoids from Africa. In this context, at the beginning of the present decade, the parasitoid Phymastichus coffea LaSalle (Hymenoptera: Eulophidae) was imported to Mexico. Since then, several studies have been carried out as part of the post introduction evaluation of this parasitoid. In this paper, information concerning the parasitism and life-cycle of P. coffea in coffee farms is presented with the objective of providing information that elucidates its role as a biological control agent. P. coffea showed highly significant preferences for allocation of two eggs per host, usually one female and one male.

Both offspring are able to develop and reach the adult stage successfully. Lifespan of adults is 2–3 days only. The degree of parasitism by P. coffea was more than 95% at the three altitudes tested, when releases consisted of a ratio of 10 CBB:1 parasitoid. The median survivorship of CBB parasitized by this wasp was 13, 15 and 19 days at the low, medium and high altitude coffee zones, respectively. The parasitism by P. coffea was higher when parasitoid releases were carried out simultaneously with the CBB, and decreased with the time between host and parasitoid releases. We showed that using P. coffea at a density of 1 parasitoid per 10 hosts resulted in a 3- to 5.6-fold decrease in CBB damage to the coffee seeds when compared to the control. The importance and value of these results are discussed in terms of the use of P. coffea as a biological control agent of the CBB in Latin America.