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8 resultados encontrados para: AUTOR: Otero Colina, Gabriel
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1.
Artículo
Fertility life tables of Raoiella indica (Trombidiformes: Tenuipalpidae) at different temperature and humidity levels
Martínez Mejía, David (autor) ; Otero Colina, Gabriel (autor) ; González Gómez, Rebeca (autora) ; Pérez Panduro, Alejandro (autor) ; Valle Mora, Javier Francisco (autor) ;
Disponible en línea
Contenido en: Revista Colombiana de Entomología Volumen 45, número 1, e7810 (2019), p. 1-8 ISSN: 2665-4385
PDF
Resumen en: Español | Inglés |
Resumen en español

Se realizó un estudio de tablas de vida y fecundidad de Raoiella indica en foliolos de palma de coco (Cocos nucifera) a temperatura y humedad relativa (HR) controladas, en Texcoco, México, con el objetivo de estimar los parámetros de incremento poblacional de este ácaro. Cohortes de 50 huevos de Raoiella indica de 12 horas de edad se incubaron a 22,5, 25, 27,5 o 30 °C y 40-50 % de HR, así como a 27,5 °C con 30-40, 60-70 u 80-90 % de HR. Se les observó diariamente hasta que murió el último. A las hembras que alcanzaron el estado adulto se les proporcionaron dos machos para promover su apareamiento y luego se registró diariamente su oviposición. Machos de un día de edad se pusieron diariamente en contacto cada uno con una deutoninfa quiescente hembra para observar cuántas veces un macho podía copular, cuando las deutoninfas alcanzaran el estado adulto. Con todas las temperaturas y HR’s, la mortalidad se distribuyó uniformemente a lo largo de las observaciones. Tasa de desarrollo, reproducción y, consecuentemente, parámetros de incremento poblacional, estuvieron significativamente asociados con la temperatura. La mayor tasa intrínseca de incremento poblacional ocurrió a 27,5 °C y 40-50 % de HR. Por sí sola, la HR no afectó significativamente a dichas variables, aunque sus valores extremos tuvieron ligeros efectos negativos. Se observaron aproximadamente cuatro hembras por cada macho. Los machos copularon en promedio con 4,56 hembras; ello sugiere que entre 20 y 30 % de machos bastan para fecundar a todas las hembras presentes.

Resumen en inglés

A study of fertility life tables of Raoiella indica was carried out on coconut (Cocos nucifera) leaflets at controlled temperature and relative humidity (RH) in Texcoco, Mexico, with the objective of estimating the parameters of population increase of this mite. Cohorts of 12-hour-old Raoiella indica eggs were incubated at 22.5, 25, 27.5 or 30 °C and 40-50 % RH, as well as 27.5 °C with 30-40, 60-70 or 80-90 % RH. They were observed daily until the last mite died. Females that attained adulthood were provided with two males to promote mating and their oviposition was recorded daily. Each one-day-old male was put in contact with a female quiescent deutonymph daily to determine how many times a male could copulate after the deutonymph became an adult. With all temperatures and RH’s, mortality was evenly distributed throughout the observations. Developmental rate, reproduction, and, consequently, parameters of population increase were significantly associated with temperature. The highest rate of population increase took place at 27.5 °C and 40-40 RH. By itself, RH did not significantly affect those variables, although its extreme values showed slight negative effects. Approximately four females per male were observed. Males copulated with 4.56 females on average; this suggests that between 20 and 30 % of the males are enough to fertilize all females present.


2.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Effects of neem (Azadirachta indica) on honey bee workers and queens, while applied to control Varroa destructor
González Gómez, Rebeca (coaut.) ; Otero Colina, Gabriel (coaut.) ; Villanueva Jiménez, Juan A. (coaut.) ; Santillán Galicia, Ma. Teresa (coaut.) ; Peña Valdivia, Cecilia Beatriz (coaut.) ; Santizo Rincón, José Antonio (coaut.) ;
Contenido en: Journal of Apicultural Research Vol. 55, no. 5 (December 2016), p. 413-421 ISSN: 2078-6913
Nota: Solicítelo con su bibliotecario/a
Resumen en español

El objetivo del estudio fue determinar el efecto de aceite de neem (Azadirachta indica) expresado en mortalidad y desarrollo de la cría de abejas obreras, postura de la abeja reina, desempeño de las colonias de abejas y mortalidad de Varroa destructor. Como hipótesis se indicó que concentraciones adecuadas de aceite de neem pueden controlar la presencia de V. destructor sin alterar las colonias de abejas. Se asperjó aceite de neem sobre panales de abejas (Apis mellifera), en concentraciones de 0.33 a 21.1%, con 7.26 a 464.64 mg l¯¹ de azadiractina. Sus efectos se cuantificaron en la mortalidad y tiempo de desarrollo de las crías, en la respuesta de las abejas obreras para alimentar y opercular a las larvas, y en el número de huevos puestos por la abeja reina. La concentración de 21.1% resultó en 100% de mortalidad de huevos, mientras que concentraciones menores resultaron en una mortalidad mínima de huevos. Las larvas que alcanzaron el quinto ínstar fueron operculadas y sobrevivieron a la presencia del aceite de neem, pero cuando se aplicó a 21.1%, su desarrollo se atrasó uno a dos días. Con concentraciones de 5.3 y 10.6% (116.2 y 232.3 mg l¯¹ de azadiractina, respectivamente), el número de huevos puestos por las reinas no fue significativamente diferente respecto al testigo, pero el aceite a 10.6% disminuyó ligeramente el número de huevos. La mortalidad máxima (85%) de V. destructor fue proporcional a la concentración y al número de aspersiones. Cuando se aplicó aceite de neem a colmenas, ninguna de las concentraciones disminuyó la población de abejas, la cría operculada de obreras o las reservas de miel y polen. Sin embargo, se perdieron dos abejas reinas luego de una aplicación de 5.3% y tres aplicaciones de 10.6%.

Resumen en inglés

The objective of this study was to determine the effect of neem (Azadirachta indica) oil on mortality and development of honey bee worker brood, queen oviposition, colony performance, and Varroa destructor mortality. As a hypothesis it was indicated that adequate concentrations of neem oil may control V. destructor without affecting bee colonies. Neem oil at concentrations of 0.33–21.1%, with 7.26–464.64 mg l¯¹ azadirachtin, was sprayed on bee (Apis mellifera) combs. Their effects on mortality and developmental time of the brood, worker bee response on feeding and capping the larvae, and number of eggs laid by the queen were quantified. A 21.1% oil concentration resulted in 100% egg mortality, but lower concentrations resulted in minimal egg mortality. Larvae that reached the fifth instar were capped and survived the presence of the oil, but when 21.1% was applied, their development was delayed one to two days. With concentrations of 5.3 and 10.6% (116.2 and 232.3 mg l¯¹ of azadirachtin, respectively), queen oviposition was not significantly different from the control, but 10.6% slightly decreased oviposition. The highest V. destructor mortality (85%) was proportional to the concentration and number of spray applications. When neem oil was applied to hives, none of the concentrations used decreased bee population, capped worker larvae or the reserves of honey and pollen. However, two queens died after one application of 5.3% and three applications of 10.6%.


3.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Infestation of Raoiella indica hirst (Trombidiformes: Tenuipalpidae) on host plants of high socio-economic importance for tropical America
Otero Colina, Gabriel (coaut.) ; González Gómez, Rebeca (coaut.) ; Martínez Bolaños, L. (coaut.) ; Otero Prevost, L. G. (coaut.) ; López Buenfil, J. A. (coaut.) ; Escobedo Graciamedrano, R. M. (coaut.) ;
Contenido en: Neotropical Entomology Vol. 45, no. 3 (June 2016), p. 300–309 ISSN: 1678-8052
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

The mite Raoiella indica Hirst was recently introduced into America, where it has shown amazing ability to disseminate and broaden its range of hosts. An experiment was conducted in Cancún, Mexico, to determine infestation levels of this mite on plants recorded as hosts: coconut palm (Cocos nucifera) of cultivars Pacific Tall and Malayan Dwarf, oil palm (Elaeis guineensis) hybrids Deli x Ghana and Deli x Nigeria, Dwarf Giant banana (Musa acuminata, AAA subgroup Cavendish), Horn plantain (M. acuminata x Musa balbisiana, AAB subgroup Plantain), lobster claw (Heliconia bihai), and red ginger (Alpinia purpurata). Nursery plants of these host species or cultivars were artificially infested with R. indica in February 2011. In the four replications of 10 plants, each plant was infested with 200 R. indica specimens, and the numbers of infesting mites were recorded for 6 months. A maximum of 18,000 specimens per plant were observed on coconut Pacific Tall and Malayan Dwarf, followed by lobster claw, with a maximum of 1000 specimens per plant. Infestations were minimal for the remaining plants. Mite numbers on all plants declined naturally during the rainy season. All plant materials sustained overlapping mite generations, indicating that they are true hosts. Complementarily, infestation level was determined in backyard bananas and plantains. Correlations of infestation with plant height, distance from coconuts, and exposure to direct sunlight were estimated. Both bananas and plantains were infested by R. indica even when situated far from infested coconut palms. A Spearman correlation was found between infestation and plant height, although it was significant only for Silk plantain.


4.
- Artículo con arbitraje
*En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-San Cristóbal
Levels of compatibility in a new host-parasite association: Apis mellifera/Varroa jacobsoni
Vandame, Rémy (autor) ; Colin, Marc E. (autor) ; Morand, Serge (autor) ; Otero Colina, Gabriel (autor) ;
Disponible en línea
Clasificación: AR/638.10972 / L4
Contenido en: Canadian Journal of Zoology Vol. 78, no. 11 (February 2011), p. 2037-2044 ISSN: 0008-4301
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
54014-10 (Disponible)
Disponibles para prestamo: 1
Nota: En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-San Cristóbal
Resumen en español

We investigated the relationships between the honey bee, Apis mellifera, and the parasitic mite Varroa jacobsoni in Mexico. In an 18-month survey of European honey bees (EHB) and Africanized honey bees (AHB), we showed that EHB were highly compatible with V. jacobsoni, while AHB were not as compatible. Furthermore, mite infertility ("parasite infectivity" factor), suspected to be the main factor of low AHB/V. jacobsoni compatibility in Brazil, was not observed in Mexico. The "intrinsic rate of natural increase" of mites did not differ significantly between host subspecies, indicating that the cause of low compatibility appears only at high parasite densities. The "carrying capacity" was twice as high in EHB as in AHB, indicating that the cause of low compatibility is possibly linked to honey bees' behavior. We hypothesize that the reason why V. jacobsoni is highly fertile on Mexican AHB (whereas it has low fertility on Brazilian AHB) may be that different strains of V. jacobsoni exist in the two countries


5.
Artículo
*En hemeroteca, SIBE-San Cristóbal
El cultivo del mango: Región Pacífico sur, Chiapas, Guerrero, Oaxaca
Cruzaley S., Rubén ; Mora A., Gustavo (coaut.) ; Nieto A., Daniel (coaut.) ; Noriega C., David (coaut.) ; Otero Colina, Gabriel (coaut.) ;
Contenido en: Conexión Sur Año 3, no. 5 (mayo-octubre 2003), p. 4-8
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
B10706 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal

6.
- Artículo con arbitraje
Comparing effects of three acaricides on Varroa Jacobsoni (Acari: Varroidae) and Apis mellifera (Hymenoptera: Apidae) using two application techniques
Pérez Santiago, Gerardo ; Otero Colina, Gabriel (coaut.) ; Mota Sánchez, David (coaut.) ; Ramírez Guzmán, Martha Elva (coaut.) ; Vandame, Rémy (coaut.) ;
Clasificación: AR/632.6542 / C6
Contenido en: Florida Entomologist Vol. 83, no. 4 (Dec. 2000), p. 468-476 ISSN: 0015-4040
PDF PDF
Resumen en: Inglés |
Resumen en inglés

Two bioassays were administered to determine the dose-lethality response of Varroa jacobsoni Oudemans and the honey bee, Apis mellifera L., to amitraz, flumethrin and fluvalinate. The first bioassay method was spraying by means of the Potter-Bourgerjon's tower. The results are expressed in mean lethal concentrations (LC50). The second method was topical application by means of microsyringe and manual applicator. The results are expressed in mean lethal doses (LD50). Both LC50 and LD50 values were considerably higher in honey bees than in varroa mites, showing that a wide margin of safety exists between effective doses against mites and harmful doses for honey bees. Both methods gave similar confidence intervals; they showed a comparable sensitivity to changes in dose or concentration of pesticides.


7.
Artículo
*En hemeroteca, SIBE-San Cristóbal, SIBE-Tapachula
Notas sobre la importancia agrícola de los ácaros en el estado de Tabasco, México
Otero Colina, Gabriel ;
Contenido en: Folia Entomológica Mexicana No. 68 (julio 1986), p. 67-73 ISSN: 0430-8603
Bibliotecas: San Cristóbal , Tapachula
Cerrar
SIBE San Cristóbal
B5822 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
B5823 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal, SIBE-Tapachula

8.
Artículo
*En hemeroteca, SIBE-San Cristóbal, SIBE-Tapachula
Obtención de larvas de ácaros acuáticos (Acari: hydrachnellae) en el estado de Tabasco, México
Otero Colina, Gabriel ;
Contenido en: Folia Entomológica Mexicana No. 63 (julio 1985), p. 69-74 ISSN: 0430-8603
Bibliotecas: San Cristóbal , Tapachula
Cerrar
SIBE San Cristóbal
B5671 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
B5672 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal, SIBE-Tapachula