Animal Foraging Behavior
Mostrando 13-24 de 33 artigos, teses e dissertações.
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13. Text not informed by the author. / Evolução do cleptoparasitismo em Argyrodes elevatus (theridiidae, aranae)
Kleptoparasitism is an animal interaction consisting in stealth of collected or processed food items. It occurs on many animal taxa. Among spiders, the subfamily Argyrodinae (Araneae) is one of the groups with more kleptoparasite species. In this study, we present a set of different actions that the kleptoparasite Argyrodes elevatus can do in host spiders we
Publicado em: 2009
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14. Primates cognitive maps: analysis of movements and routes of Cebus nigritus based on geographic information system / Mapas cognitivos de primatas: análise de movimentos e rotas de Cebus nigritus apoiada por sistemas de informação geográfica
Capuchin monkeys are remarkable for their flexible foraging behavior, occupying environments with diverse characteristics, and, because of these elements they have the largest geographic distribution among the New World primates. They have skills such as tool use and spatial recognition of their home range when searching for food, relying on both egocentric
Publicado em: 2009
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15. Ecologia alimentar do boto cinza, sotalia guianensis (van banédén, 1864), no litoral do rio grande do norte (rn)
Esse trabalho investigou os fatores que influenciam o tamanho de grupo durante o comportamento alimentar do boto cinza Sotalia guianensis no litoral sul do estado do Rio Grande do Norte (RN), também caracterizou a dieta dessa espécie na região e elaborou um catálogo de otólitos para auxiliar à identificação das presas encontradas nos conteúdos estom
Publicado em: 2009
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16. Comportamento social e territorialidade alimentar na garça-azul, Egretta caerulea (L) = Feeding territoriality in the little blue heron, Egretta caerulea (L)
The use of habitat is an important part of a species biology. One resource of great importance for the survivor and reproduction of an individual is the food resource. Thus, the social interactions an animal has during the feeding activities are of extremely importance within its behavioral aspects, which represents the part of an organism trough which it in
Publicado em: 2008
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17. Alteração do comportamento maternal após injeção local de morfina na PAG rostral lateral de ratas lactantes / Maternal behavior disruption through morphine infusion in rostral lateral PAG of lactating rats
By using pharmacologycal approaches such as systemic injections of morphine, it has been possible to reveal the inhibitory influence of opioids on rat maternal behavior (MB). Also, it has been reported that central infusions of naloxone or CCK into the rostral lateral PAG restore maternal behavior in lactating rats treated with morphine. This research invest
Publicado em: 2008
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18. ASSEMBLÉIAS DE FORMIGAS DO PARQUE ESTADUAL DO ITACOLOMI (MG) E RELAÇÕES INTRA E INTERESPECÍFICAS ENTRE ESPÉCIES DOMINANTES
Arboreal ants usually show a strong territolialist behavior, defending aggressively their foraging sites or the area surrounding their nest against individuals of other colonies. Thereby, the most aggressive ants with larger distribution, which may be considered dominants, defines the ant assemblage structure by shaping species distributions into threedimens
Publicado em: 2008
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19. Choice of conspecific targets in the observation of tool use by wild bearded capuchin monkeys (Cebus libidinosus) / Escolha de alvos coespecíficos na observação do uso de ferramentas por macacos-prego (Cebus libidinosus) selvagens
A quebra de frutos encapsulados por macacos-prego com o auxílio de ferramentas é tipicamente objeto de observação e scrounging por coespecíficos, bastante tolerados e em geral mais jovens e menos proficientes. O presente estudo teve como objetivo examinar o processo de escolha, pelos observadores, dos alvos de observação, e se esta escolha pode otimiz
Publicado em: 2008
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20. Fissão-fusão em Cebus nigritus : flexibilidade social como estratégia de ocupação de ambientes limitantes / Fission-fusion in cebus nigritus : social flexibility as occupation strategy in limitants environments
The primate order presents a great diversity of social organization, from species considered solitary to those where the individuals of a group remain together all the time. Capuchin monkeys (Cebus spp.) generally live in stable and cohesive groups, without the formation of subgroups. However, their social organization can be more flexible. Two former studie
Publicado em: 2007
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21. Padrão de atividades e de interações sociais de animais juvenis em dois grupos selvagens de Callithrix jacchus
The juvenile period represents the developmental phase between weaning and sexual maturity. Weaning occurs when the youngster does not receive direct care from the caretakers anymore. Individuals in the species Callithrix jacchus live in groups composed by the reproductive pair and successive twin sets. Cooperative care is the rule. Infants are weaned early,
Publicado em: 2007
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22. Padrão de atividades do sagüi callithrix jacchus numa área de caatinga
Callithrix jacchus, as the other species in the family Callitrichidae, lives in social groups. The groups cam be found in different habitats, whose distinct floristic physiognomies and communities are intrinsically related to their behavioral ecology and social relations. Our objective was to describe the social relations and feeding behavior of Callithrix j
Publicado em: 2006
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23. Comportamento de mergulho do boto-cinza, Sotalia guianensis, na enseada do Curral, Praia de Pipa-RN, Brasil :possíveis adaptações cardíacas ao mergulho
The marine tucuxi, Sotalia guianensis, is one of the smallest known cetaceans, has coastal habits, and occurs from Hondures to Santa Catarina, in southern Brazil. The objective of this dissertation was to describe diving behavior of the marine tucuxi in three age classes and to analyze the cardiac capacity to dive through the examination of hearts of strande
Publicado em: 2006
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24. Variação diária e anual de freqüência e atividade do Boto Cinza Sotalia guianensis em Pipa, Nordeste do Brasil
The aim of this study was to investigate the daily and annual variation in frequency and in activity of an estuarine dolphin population, Sotalia guianensis, in Brazilian northeastern. Thus we estimated the daily variation and seasonality in frequency of adult and immature and in behavior of socialization, aerial activity, foraging of a boto equatorial popula
Publicado em: 2006