Insect Behaviour
Mostrando 13-24 de 25 artigos, teses e dissertações.
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13. Comportamento em populações de Sitophilus zeamais resistentes a inseticidas / Behavior of insecticide-resistant strains of Sitophilus zeamais
O principal método de controle contra o caruncho-do-milho em clima tropical é o uso de inseticidas, particularmente piretróides, devido à falta de métodos alternativos de controle. Custos adaptativos associados à resistência a inseticidas foram observados em linhagens de Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae). Linhagens de Sitophil
Publicado em: 2008
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14. Preparados homeopáticos, iscas fitoterápicas, conhecimento popular e estudo do comportamento para o manejo das formigas cortadeiras no Planalto Serrano Catarinense / Homeopathic preparations, phytoterapic baits, local knowledge and behaviour studyes for managing leaf cut ants in the "Planalto Serrano Catarinense" Region
A proliferação epidêmica de insetos no agroecossistema é sintoma de desequilíbrio, associado à redução da biodiversidade e empobrecimento dos solos. Formigas dos gêneros Acromyrmex spp. e Atta spp. podem se tornar importantes pragas, requerendo intervenções freqüentes, normalmente realizadas por iscas tóxicas de alto poder residual. Neste trabal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2007
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15. Variable related to the Trypanosoma cruzi (Chagas, 1909) and to the Triatoma brasiliensis vector (Neiva, 1911) that intervenes in the host-parasite relations / Variáveis relacionadas ao Trypanosoma cruzi (Chagas, 1909) e ao vetor Triatoma brasiliensis (Neiva, 1911) que interferem na interação parasito-hospedeiro
Despite of the multiclonal structure and genetical variability of Trypanosoma cruzi (Chagas, 1909), several investigations using the eletrophoretic profiles (zymodeme) and molecular techniques were used to characterize subpopulations of this parasite, further defining two main distinct and distant phylogenetic lineages: T. cruzi (TcI and TcII). In the presen
Publicado em: 2006
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16. Identificação de constituintes voláteis das glândulas salivares de machos de Ceratitis capitata e Anastrepha obliqua (Diptera: Tephritidae) e de seu hospedeiro Averrhoa carambola L.
Estudos comportamentais e químicos foram conduzidos com Ceratitis capitata Wied. e Anastrepha obliqua Macq. e seu fruto hospedeiro, Averrhoa carambola L. (carambola). Os bioensaios visaram avaliar a idade e os horários de pico dos comportamentos reprodutivos (chamamento, cópula e oviposição) e os estágios de maturação da carambola selecionados pelas
Publicado em: 2005
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17. Oleos essenciais de Baccharis e sua interação com insetos polinizadores
Correlation among Baccharis species revealed the essential oils similarity of B. dracunculifolia, B. erioclada. B. caprariaefolia. B. platipoda, B. tridentata, B. vincaefolia and B. myriocephala. From a daytime monitoring of B. dracunculifolia male and female plants we could observe that the inflorescences are mainly responsible for the mono/sesquiterpene ra
Publicado em: 1996
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18. Tamandua-da-soja: aspectos biologicos, danos e comportamento.
1989
Londrina: EMBRAPA-CNPSo. Publicado em: 1989
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19. Gliding hexapods and the origins of insect aerial behaviour
Directed aerial descent (i.e. gliding and manoeuvring) may be an important stage in the evolution of winged flight. Although hypothesized to occur in ancestrally wingless insects, such behaviour is unexplored in extant basal hexapods, but has recently been described in arboreal ants. Here we show that tropical arboreal bristletails (Archaeognatha) direct the
The Royal Society.
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20. Adaptation and the genetics of social behaviour
In recent years much progress has been made towards understanding the selective forces involved in the evolution of social behaviour including conflicts over reproduction among group members. Here, I argue that an important additional step necessary for advancing our understanding of the resolution of potential conflicts within insect societies is to conside
The Royal Society.
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21. Transient post-mating inhibition of behavioural and central nervous responses to sex pheromone in an insect.
Mating is costly for both male and female insects and should therefore only occur if it is likely to be successful. Within one scotophase, which is the dark period of the light cycle, male moths can only produce one single spermatophore, which is transferred to the female during mating. Remating within the same scotophase would thus be unsuccessful. We teste
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22. Pyrazine odour makes visually conspicuous prey aversive.
Unpalatable insects frequently adopt multimodal signals to ward off predators, incorporating sounds and odours into their colourful displays. Pyrazine is an odour commonly used in insect warning displays, and has previously been shown to elicit unlearned biases against common warning colours, e.g. yellow and red in naive predators. We designed two experiment
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23. Role of cross-bridge distortion in the small-signal mechanical dynamics of insect and rabbit striated muscle.
The mechanism of the active tension response of insect fibrillar muscle to step changes and small oscillations of length was re-investigated, following White's demonstration (1983) that the high relaxed stiffness evidently persists during activation and cannot be neglected as had previously been assumed. White's result makes earlier explanations of the small
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24. Scab formation and wound healing of plant tissue by soldier aphid
In the social aphid Nipponaphis monzeni, a unique gall-repairing behaviour has been known: when a hole is made on the gall, many soldier nymphs discharge body fluid on the breach, which promptly solidifies and plugs the hole. Here, we experimentally investigated the subsequent fate of repaired galls and their inhabitants. Irrespective of natural repair by so
The Royal Society.