Agonistic Interactions
Mostrando 13-24 de 34 artigos, teses e dissertações.
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13. 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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14. Caracterização do ritmo de atividade motora durante a puberdade em sagüis (Callithrix jacchus) sob condições semi-naturais
Most of ontogenetic studies on circadian timing system have been developed on infants, adults and elderly. The puberty has not been a stage of life few studied, except for researches in human adolescents, that presents phase delay in sleep-wake cycle. However, few studies have focused on the basis of this circadian change due to methodological diffic
Publicado em: 2008
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15. Interações sociais em grupos de macacos-prego (Cebus libidinosus) no Parque Nacional de Brasília
Primate social behaviour is influenced by different kinds of competition. Food competition is stronger among females because food intake limits female reproductive success. Thus, socio-ecological models are based mainly on food competition among females. In Cebus, females are philopatric and develop discriminative affiliative bonds and strong dominance relat
Publicado em: 2007
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16. Aspectos do cuidado cooperativo em dois grupos de Callithrix jacchus selvagens
The Callitrichidae family presents cooperative breeding, where breeders and non breeders take care of the offspring. The aspects of care analyzed in this study were infant carrying, supervision, proximity and food transfer. Three sets of infants from two wild groups of Callithrix jacchus were studied in the environments of Caatinga (Assu group) and Atlantic
Publicado em: 2007
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17. Estrutura social e alo-amamentação de catetos (Tayassu tajacu) em cativeiro / Social structure and allonursing of collared peccaries (Tayassu tajacu) in captivity
The network of relationships established among individuals of a group is called social structure, and may be affected by factors as relatedness and nutritional conditions. Allonursing is an intriguing behavior characterized by the non-parental female nursing of infants. The goals of this study were determine the influence of relatedness and nutritional condi
Publicado em: 2006
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18. Socialidade em sagüis do cerrado (Callithrix Penicillata): estratégias comportamentais nas relações intra e intergrupo
The present work investigated the social relationships in the Cerrados marmoset (Callithrix penicillata). Behavioural data from a wild group helped to understand both within and between group social patterns. The analyses of the within-group agonistic interactions showed a hierarchic structure with the reproductive female as the dominant. There were no clear
Publicado em: 2006
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19. Behavioural aspects of the Partridge (Rhynchotus rufescens) in captivity during the reproductive phase: a case study. / Aspectos comportamentais da Perdiz (Rhynchotus rufescens) em cativeiro durante a fase reprodutiva: um estudo de caso.
The species Rhynchotus rufescens, a native bird of Brazil, popularly denominated partridge or pellet, has been showing easy adaptation to captivity and a great potential to be explored zootechnically, with the possibility of the use of its meat as an alternative source of proteins, since the meat of wild animals is a nourishment alternative in many countries
Publicado em: 2003
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20. Crescimento relativo do camarão canela Macrobrachium amazonicum (Heller) (Crustacea, Decapoda, Palaemonidae) em viveiros
Some morphometric relationships in Macrobrachium amazonicum (Heller, 1862) reared in earthen ponds were studied. A total of 239 individuals were collected, sexed and sorted to juvenile or adult. Total length (Lt), post-orbital length (Lpo), carapace length (Lcp) and queliped length (Lql) were measured. The relationships Lt/Lpo, Lpo/Lcp and Lt/Lcp are the sam
Revista Brasileira de Zoologia. Publicado em: 2002-12
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21. Biologia da polinização da especie arborea Citharexylum myrianthum Cham. (Verbenaceae), polinizadores e utilização do recurso floral pelos visitantes
Citharexylum myrianthum is a tree, typically found in the Atlantic Rain Forest and gallery forests, in early successional stages and it is a very important component in the regeneration of degraded areas, ranging from south Bahia to Rio Grande do Sul. We studied the phenology of this species, its floral biology, pollinators, and visitors in Campinas and in P
Publicado em: 2001
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22. Agonistic behavior enhances adult neurogenesis in male Acheta domesticus crickets
We examined the effect of agonistic behavior on cell proliferation and neurogenesis in the central nervous system (CNS) of adult male Acheta domesticus crickets. We combined 5-bromo,2′deoxyuridine (BrdU)-labeling of dividing cells with immunocytochemical detection of the neuronal marker horseradish peroxidase to examine the proliferation of progenitor
Company of Biologists.
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23. Fighting fruit flies: A model system for the study of aggression
Despite the importance of aggression in the behavioral repertoire of most animals, relatively little is known of its proximate causation and control. To take advantage of modern methods of genetic analysis for studying this complex behavior, we have developed a quantitative framework for studying aggression in common laboratory strains of the fruit fly, Dros
National Academy of Sciences.
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24. Decision rules, energy metabolism and vigour of hermit-crab fights.
Aggressive interactions between animals are often settled by the use of repeated signals that reduce the risk of injury from combat but are expected to be costly. The accumulation of lactic acid and the depletion of energy stores may constrain activity rates during and after fights and thus represent significant costs of signalling. We tested this by analysi