Ponerine
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Leaf-litter amount as a factor in the structure of a ponerine ants community (Hymenoptera, Formicidae, Ponerinae) in an eastern Amazonian rainforest, Brazil
Efeito da quantidade de serapilheira sobre a estrutura de uma comunidade de formigas ponerinae (Hymenoptera, Formicidae, Ponerinae) em uma floresta tropical da Amazônia Oriental, Brasil. Analisou-se o efeito da serapilheira sobre a estrutura da comunidade de formigas Ponerinae em áreas de floresta amazônica primária, localizadas na Estação Científica
Revista Brasileira de Entomologia. Publicado em: 2011-12
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2. Interações entre Pachycondyla striata e Odontomachus chelifer (Formicidae, Ponerinae) e diasporos em tres fisionomias florestais da Mata Atlantica / Interactions between Pachycondyla striata and Odontomachus chelifer (Formicidae, Ponerinae), and diaspores in three landscapes at Mata Atlantica
The present study investigated the spatial variation in interactions involving the ponerine ants Pachycondyla striata and Odontomachus chelifer and nonmyrmecochorous diaspores. The study was carried out at the three continuous forests formations in the Brazilian Atlantic forest: Restinga forest (2-3 m above sea level), Lowland forest (05-30 m above sea level
Publicado em: 2006
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3. Distribuição e arquitetura de ninhos e revoada de machos de Dinoponera quadriceps (Hymenoptera, Formicidae) em um remanescente de Mata Atlântica do Nordeste Brasileiro
Dinoponera quadriceps é uma formiga ponerine sem rainha da região Neotropical. A distribuição espacial e a abundância de seus ninhos foram investigadas em um remanescente de Mata Atlântica do Nordeste brasileiro. Machos foram capturados com armadilha luminosa de agosto de 1994 a julho de 1996. A densidade de ninhos de D. quadriceps variou de 15 a 40 ha
Brazilian Journal of Biology. Publicado em: 2004-05
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4. Ecologia comportamental de Ectatomma opaciventre (Formicidae, Ponerinae) : forrageamento e organização social
The ant Ectatomma opaciventre is exc1usively diurnal, restraining theforaging activity at midday. The diet is typically omnivorous, where termites workers and leaf-cutting ants were the most important food items. Contrary to other Ectatomma species, no liquid food like homopteran honeydew or plant nectar was collected. The foragers showed individual foraging
Publicado em: 1998
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5. Reproductive cooperation between queens and their mated workers: the complex life history of an ant with a valuable nest.
The life history of Harpegnathos saltator is exceptional among ants because both queens and workers reproduce sexually. Recently mated queens start new colonies alone, but later some of the offspring workers also become inseminated and take over the egg-laying role. This alternation seems associated with the existence of very complex underground nests, which
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6. Are variations in cuticular hydrocarbons of queens and workers a reliable signal of fertility in the ant Harpegnathos saltator?
One of the key features of insect societies is the division of labor in reproduction between one or a few fertile individuals and many sterile nestmates that function as helpers. The behavioral and physiological mechanisms regulating reproduction in ant societies are still not very well understood, especially in species in which all colony members are r
The National Academy of Sciences.
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7. Convergent evolution of chemical defense in poison frogs and arthropod prey between Madagascar and the Neotropics
With few exceptions, aposematically colored poison frogs sequester defensive alkaloids, unchanged, from dietary arthropods. In the Neotropics, myrmicine and formicine ants and the siphonotid millipede Rhinotus purpureus are dietary sources for alkaloids in dendrobatid poison frogs, yet the arthropod sources for Mantella poison frogs in Madagascar remained un
National Academy of Sciences.