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24 resultados encontrados para: TEMA: Hormigas ponerinas
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1.
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.


2.
- Artículo con arbitraje
First record of an encyrtid Wasp (Hymenoptera: Chalcidoidea) as a true primary parasitoid of ants (Hymenoptera: Formicidae)
Pérez Lachaud, Gabriela ; Noyes, John S. (coaut.) ; Lachaud, Jean Paul (coaut.) ;
Contenido en: Florida Entomologist Vol. 95, no. 4 (2012), p. 1066-1076 ISSN: 0015-4040
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Resumen en: Español | Inglés |
Resumen en español

Numerosos casos de asociaciones con hormigas han sido reportados para avispas de la familia Encyrtidae con anterioridad. Sin embargo, en la mayoría de estos casos, las asociaciones son indirectas (interferencia), a través del parasitismo primario de insectos trofobiontes (Coccoidea) que las hormigas explotan y protegen. Los casos de parasitismo directe sospechados son raros y ningún ataque directo por encírtidos sobre hormigas ha sido demostrado hasta la fecha. Aquí compilamos todos los casos conocidos de asociaciones entre avispas de la familia Encyrtidae y hormigas, y reportamos el primer registro de verdadero parasitismo primario de hormigas para esta familia. De dos colonias de la hormiga ponerina arbórea Pachycondyla goeldii (Forel) de Guyana Francesa que se examinaron, una tenía 3 pupas parasitadas por machos y hembras de un diminuto Encyrtidae gregario, identificado como Blanchardiscus pollux Noyes, y 2 pupas más presentaban señales de pararasitismo. Este primer registro de hospedero conocido para el género Blanchardiscus, el cual siempre ha sido considerado cercano a otros géneros de encírtidos parasitando escamas, tiende a apoyar la hipótesis de una deriva progresiva del parasitismo desde los mirmecófilos hacia las hormigas. Este reporte permite incrementar a 9 el número de familias de avispas parasitoides conocidas por parasitar a hormigas. Es muy probable que el examen cuidadoso de otras especies de hormigas arbóreas, en particular aquellas involucradas en las construcción de jardínes de hormiga o de nidos tejidos, lleve a la detección de nuevas asociaciones entre hormigas y parasitoides.

Resumen en inglés

Numerous cases of associations of encyrtid wasps with ants have already been reported. In the majority of these cases, however, wasps are associated only indirectly with ants (interference associations) through primary parasitism of the trophobionts (Coccoidea), which are exploited and protected by ants. Suspected direct parasitism cases are unusual and no direct attack of encyrtids on ants has ever been demonstrated. Here we provide both a revised list of all known cases of associations between encyrtid wasps and ants, and a report of the first record of a true primary encyrtid parasitoid of ants. Of two colonies of the arboreal ponerine ant, Pachycondyla goeldii (Forel), examined from French Guiana, one had 3 pupae parasitized by males and females of a gregarious, minute encyrtid wasp species, identified as Blanchardiscus pollux Noyes, and 2 other cocoons presented evidence of pararasitism. This first host record for the genus Blanchardiscus, which has always been placed near other genera that parasitize scale-insects, supports a hypothesis of a shift from a myrmecophilous host to an ant host. Our findings increase to 9 the number of parasitoid wasp families known to attack ants as primary hosts. A closer examination of other arboreal ants, particularly those involved in ant-garden building and nest weaving, will certainly yield new ant-parasitoid associations.


3.
Artículo
The hunting behavior of the African ponerine ant Pachycondyla pachyderma
Dejean, Alain ; Lachaud, Jean Paul (coaut.) ;
Contenido en: Behavioural Processes Vol. 86, no. 2 (February 2011), p. 169-173 ISSN: 0376-6357
Resumen en: Inglés |
Resumen en inglés

The hunting behavior of the African ponerine ant Pachycondyla pachyderma, a semi-specialized centipede predator, appears well adapted to this kind of prey and shows a graded complexity according to the difficulty it has in overwhelming prey. Small prey (5 to 8 mm-long termites) were detected by contact and seized by the thorax while larger prey (≥30 mm-long centipedes) were frequently detected from a distance and seized by the anterior-most part of their body. Termites and 30 mm-long lithobiomorph centipedes were not always stung, whereas stinging and even repeated stinging was needed for 50 mm-long geophilomorphs and scolopendromorphs. Moreover, overwhelming wide and heavy scolopendromorphs, which have better defensive abilities, involved the use of additional behaviors allowing the workers to capture them safely: venom spreading, and a peculiar stinging posture, the "fatal embrace". Here the workers seize scolopendromorphs by an antenna or by one of their first legs, wrap themselves around the prey while maintaining their grip with their mandibles and legs, and slowly inject venom into the prey's ventral surface. Workers retrieve small prey solitarily while, for large geophilomorphs and scolopendromorphs, nestmates can be recruited at short range or even at long range through tandem running.


4.
Artículo

5.
Artículo
Cuticular hydrocarbons of Kapala sulcifacies (Hymenoptera: eucharitidae) and its host, the ponerine ant Ectatomma ruidum (Hymenoptera: formicidae)
Howard, Ralph W. ; Pérez Lachaud, Gabriela (coaut.) ; Lachaud, Jean Paul (coaut.) ;
Clasificación: AR/595.796 / H6
Contenido en: Annals of the Entomological Society of America Vol. 94, no. 5 (2001), p. 707-716 ISSN: 0013-8746
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
ECO010010861 (Disponible)
Disponibles para prestamo: 1
Resumen en: Inglés |
Resumen en inglés

Cuticular hydrocarbons from the ponerine ant Ectatomma ruidum Roger and a highly integrated eucharitid myrmecophile, Kapala sulcifacies (Cameron), associated with it, have been characterized. Ninety hydrocarbons were identiÞed from the ant, 55 hydrocarbons from the female wasp and 54 hydrocarbons from the male wasp. The wasps and ants share 40 hydrocarbons. These shared 40 hydrocarbons represent 92.6% of their hydrocarbon composition for female Kapala, 84.3% for male Kapala and 67.7% for the ants. The wasps have a carbon number range of C27 to C35; the ants have a range of C23 to C35. Both species possess n-alkanes, C27 to C33 for the wasps, C23 to C34 for the ants. Both species also possess major quantities of Z-7- and Z-9 alkenes: C29 to C33 for the wasps; C23 to C35 for the ants. The female wasps possess a low amount of a conjugated C31 diene (neither the ants nor the male wasps possess this hydrocarbon), and the ants, but not the wasps, contain low quantities of nonconjugated dienes (carbon numbers of C23 to C29) with double bonds at D9, and D14. Both wasps and ants share homologous series of 3-, 5-, 10-, 11-, 12-, 13-, 15- and 17-methyl branched alkanes. Ants and wasps also share a homologous series of 3,7-dimethyl alkanes. Other internally branched dimethyl alkanes are found in both ants and wasps, but only 11, 15- DiMeC29 is shared.

Wasps have 7, 15- and 10, 14-dimethyl alkanes while the ants have 15,19-dimethyl alkanes. Kapala sulcifacies and E. ruidum both possess hydrocarbons of the 5, X-, 11, X-, 12, X- and 13, X-DiMe series, but the compounds involved are not shared because they represent different compounds. Behavioral observations indicate that the ants accept the newly emerged adult parasitoids with no evidence of agonistic behavior for a period of time after adult eclosion. Nevertheless, the chemical deception is not completely efÞcient because young adult Kapala are soon ejected from the nest by transportation by their host. These transportations frequently occur after seizure at the base of the waspsÕ characteristic scutellar spines, such structures allowing for easy transportation without injury for the parasite. Moreover, if no method of escaping the colony is provided, the ants ultimately attack the parasitoids. The substantial chemical overlap of the cuticular hydrocarbon proÞles of the ants and wasps are discussed in the context of the social life of the colony.


6.
Artículo
*En hemeroteca, SIBE-San Cristóbal-Samples
Fourmis ponérines associées aux parasitoïdes du genre kapala cameron (Hymenoptera, eucharitidae)
Lachaud, Jean Paul ; Pérez Lachaud, Gabriela (coaut.) ;
Clasificación: AR/595.79600972 / L3
Contenido en: Actes des Colloques Insectes Sociaux Vol. 14 (2000), p. 101-105 ISSN: 0256-0076
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
37934-20 (Disponible) , ECO010010860 (Disponible)
Disponibles para prestamo: 2
Nota: En hemeroteca, SIBE-San Cristóbal-Samples

7.
Capítulo de libro
Diversidad de hormigas ponerinas (Hymenoptera: formicidae) en el agrosistema café y cacao en Chiapas, México
Lachaud, Jean Paul (autor) ; García Ballinas, José Álvaro (autor) ;
Clasificación: AR/595.796 / L3
Contenido en: X jornadas científicas : aniversario Tapachula, Chiapas, México : Universidad Autónoma de Chiapas. Facultad de Ciencias Químicas, 1999 p. 25-26
Bibliotecas: San Cristóbal , Tapachula
Cerrar
SIBE San Cristóbal
ECO010005483 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
34765-20 (Disponible)
Disponibles para prestamo: 1

8.
Artículo
Feeding preferences in African ponerine ants: a cafeteria experment (Hymenoptera: Formicidae)
Dejean, Alain ; Schatz, Bertrand (coaut.) ; Orivel, J. (coaut.) ; Beugnon, Guy (coaut.) ; Lachaud, Jean Paul (coaut.) ; Corbara, Bruno (coaut.) ;
Contenido en: Sociobiology Vol. 34, no. 3 (1999), p. 555-568 ISSN: 0361-6525
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9.
Libro
X jornadas científicas: aniversario
Jornadas Científicas (X : 1999 : Tapachula de Córdova y Ordóñez, Chiapas) ;
Tapachula, Chiapas, México : Universidad Autónoma de Chiapas, Facultad de Ciencias Químicas , 1999
Clasificación: CH/630.274572 / J6/1999
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020004583 (Disponible)
Disponibles para prestamo: 1

10.
Capítulo de libro
*Solicítelo con su bibliotecario/a
Observaciones sobre la asociación entre el parasitoide Kapala Sp. (Hymenoprera: Eucharitidae) y su huésped la hormiga ponerina Ectatomma ruidum roger
Lachaud, Jean Paul (autor) ; Pérez Lachaud, Gabriela (autora) ; Heraty, John M. (autor) ;
Contenido en: Memorias del XXXIII congreso nacional de entomología Distrito Federal, México : Sociedad Mexicana de Entomología, 1998 página 177-182
Bibliotecas: San Cristóbal , Tapachula
Cerrar
SIBE San Cristóbal
54131-10 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
54131-20 (Disponible)
Disponibles para prestamo: 1
Nota: Solicítelo con su bibliotecario/a