Chemical Cues
Mostrando 1-12 de 43 artigos, teses e dissertações.
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1. Foraging behavior of two egg parasitoids exploiting chemical cues from the stink bug Piezodorus guildinii (Hemiptera: Pentatomidae)
Abstract: Several parasitoids attacking the same host may lead to competition. Adult parasitoids’ abilities to find, parasitize and defend hosts determine resource’s retention potential. In soybean, two egg parasitoid species, Telenomus podisi and Trissolcus urichi (Hymenoptera: Platygastridae), compete on the egg masses of Piezodorus guildinii (Hemipter
An. Acad. Bras. Ciênc.. Publicado em: 14/10/2019
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2. Unusual effect of chemical communication on social aggression in juvenile cichlid fish Cichlasoma paranaense (Cichliformes: Cichlidae)
RESUMO Algumas espécies de peixes são organizadas socialmente e apresentam uma ordem de rank social que é alcançada por meio de interações agressivas. Após o estabelecimento da hierarquia, essas espécies comunicam seu rank por diversas pistas sensoriais, essa comunicação é adaptativa, pois reduz os efeitos prejudiciais das lutas físicas. Peixes c
Neotrop. ichthyol.. Publicado em: 27/06/2019
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3. Differences in volatile composition and sexual morphs in rambutan (Nephelium lappaceum L.) flowers and their effect in the Apis mellifera L. (Hymenoptera, Apidae) attraction
ABSTRACT We studied the volatile composition and sexual morphs of Nephelium lappaceum flowers from two orchards, and investigated the choice behavior of the honey bee, Apis mellifera toward the floral extracts from both locations. Our results showed significant differences in chemical composition and sexual morphs; only the hermaphrodite flowers from the Her
Rev. Bras. entomol.. Publicado em: 2018-01
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4. The trade-off between the transmission of chemical cues and parasites: behavioral interactions between leaf-cutting ant workers of different age classes
ABSTRACT Social animals are faced with an intriguing dilemma. On the one hand, interactions between individuals are essential to exchange information and to promote cohesion, while on the other hand such interactions carry with them the risk of catching and transmitting parasites. This trade-off is particularly significant for social insects because low with
Rev. Bras. entomol.. Publicado em: 2017-01
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5. Predatory behavior of Pseudodorus clavatus (Diptera, Syrphidae) on aphids tended by ants
Predatory behavior of Pseudodorus clavatus (Diptera, Syrphidae) on aphids tended by ants. In this study, we examined the interactions between myrmecophilous aphids, their ant-guards and a predatory syrphid species, Pseudodorus clavatus (F.). Larvae of this predator were found in the colonies of three aphid species: Aphis gossypii, A. spiraecola and Toxoptera
Rev. Bras. entomol.. Publicado em: 03/12/2013
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6. Reproductive behaviours and host plant selection mediated by semiochemicals in Neoleucinodes elegantalis (Lepidoptera: Crambidae) / Comportamento reprodutivo e seleção de hospedeiro mediada por semioquímicos em Neoleucinodes elegantalis (Lepidoptera: Crambidae)
The searching behaviour in insects is important to acquire food, meeting mates, oviposition sites location and protect the insects against predators. Thus, the majority of herbivorous insects select their host plant and, in particular, the plants part, which it will feed and oviposit on, using, among other tools, host plants semiochemicals. This paper aims:
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2011
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7. Sensory response of the egg parasitoid Telenomus podisi to stimuli from the bug Euschistus heros.
The objective of this work was to study the foraging behavior of Telenomus podisi Ashmead (Hymenoptera: Scelionidae) in the presence of stimuli from its host, Euschistus heros (Heteroptera: Pentatomidae). The stimuli selected were: egg mass; virgin males and females; volatile extracts of sexually mature males and females; components of male sex pheromone; a
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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8. Spatial choice is biased by chemical cues from conspecifics in the speckeled worm eel Myrophis punctatus
A enguia mirongo-mirim Myrophis punctatus vive em agrupamentos de alta densidade populacional e comumente se enterra ou permanece sob o substrato. Esses comportamentos podem levar a marcas químicas no subtrato e podem, portanto, modular o uso do espaço nessa espécie. Neste estudo, testamos a hipótese de que a preferência espacial da enguia mirongo-mirim
Neotropical Ichthyology. Publicado em: 15/10/2010
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9. Effects of contextual fear conditioning and pentylenetetrazol on panic-like reactions induced by dorsal periaqueductal gray stimulation with N-methyl-D-aspartate
Electrical or chemical stimulation of the dorsal periaqueductal gray (DPAG) has been accepted as an animal model of panic attacks. This study investigates the influence of anticipatory anxiety in the occurrence of panic-like behavior induced by N-methyl-D-aspartate (NMDA) microinjection into the DPAG of rats. Behavioral (i.e., contextual fear conditioning) a
Psychology & Neuroscience. Publicado em: 2010-06
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10. Chemical ecology and reproduction of Neoleucinodes elegantalis Guenée (Lepidoptera : Crambidae) / Ecologia química e reprodução de Neoleucinodes elegantalis Guenée (Lepidoptera : Crambidae)
The reproduction in insects is affected by a wide array of factors that acts directly on the reproductive output, related with offspring quality and quantity: the interaction, by physical, chemical and visual cues, between insects and host plants; the larval growth rate affecting adult size and mating rate, as a mechanism of reproductive sucess. Thus, studie
Publicado em: 2010
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11. Coabitação com um parceiro doente: avaliações das alterações neuroimunes e da forma de comunicação / Cohabitation with a sick cage mate: evaluations of neuroimune changes and of the way of communication
Several papers are showing relevant neuroimmune regulation and/or modulation during stress or diseases. The incorporation of biological and psychological models of humans conditions are of high relevance in neuroscience. Animals exhibit a variety of adaptative behaviors for communicating with conspecifics; communication between animals can be visual, tactile
Publicado em: 2010
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12. Spatial orientation in the arboreal crepuscular ant : Odontomachus hastatus (Formicidae: Ponerinae) / Orientação espacial em uma formiga arboricola crepuscular : Odontomachus hastatus (Formicidae: Ponerinae)
Em matas de restinga da Ilha do Cardoso (SP), forrageadoras da formiga arborícola crepuscular/noturna Odontomachus hastatus podem caçar a >8 m do ninho. O forrageamento se dá principalmente no dossel, em uma intricada rede de galhos, onde esta formiga deve ser capaz de aprender o caminho de retorno ao ninho. O ambiente do dossel e seu hábito noturno torn
Publicado em: 2009