Courtship Displays
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Influência da estacionalidade no comportamento de corte de Pipra rubrocapilla (Passeriformes: Pipridae) em um remanescente de mata atlântica no estado de Pernambuco.
A presença das estações seca e chuvosa regula o comportamento de muitas aves, que sincronizam período reprodutivo a essas diferentes condições. Sendo assim, o presente estudo teve por objeto avaliar a influência da estacionalidade no comportamento reprodutivo de P. rubrocapilla. Para a constatação dessa provavel influência, foram contados os compor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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2. Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions
In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including morphological and physiological features. This substrate breeding fish has biparental care of the fry and pr
Neotropical Ichthyology. Publicado em: 22/07/2011
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3. Estruturação genética em populações do tangará-dançarino Chiroxiphia caudata (Aves, Pipridae) no corredor costeiro da Mata Atlântica (SP) e sua importância para a conservação.
Neotropical passerine birds that inhabit forests understory are thought to be highly sedentary, which may result in greater genetic differentiation among populations than in temperate species. The species of the genus Chiroxiphia (Pipridae) perform highly specialized courtship displays in which males aggregate at traditional arenas, or ``leks, performing a p
Publicado em: 2005
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4. Territorial and reproductive behaviour of a new species of Hylodes (Amphibia, Anura, Bufonidae) from the Atlantic Forest of Southeast Brazil. / Comportamento Territorial e Reprodutivo de Uma Nova Espécie de Hylodes (Amphibia, Anura, Leptodactylidae) da Mata Atlântica do Sudeste do Brasil.
Hylodes sp.n. is a small-sized steam-dweller leptodactylid frog of the Atlantic Rain Forest of Southeast Brazil. Males and females are found together in the same habitat throughout the year and they have prolonged breeding periods. Males have two types of vocalization: the advertisement call, a long high-pitched whistled trill and the encounter call, compose
Publicado em: 1997
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5. Attracting female attention: the evolution of dimorphic courtship displays in the jumping spider Maevia inclemens (Araneae: Salticidae).
Males of the dimorphic jumping spider (Maevia inclemens) differ in both their morphologies and courtship displays (i.e. phase I).The tufted morph stilts and waves from an average distance of 9 cm from a female, whereas the grey morph crouches and sidles from an average distance of 3 cm from a female. The objective of this study was to determine the significa
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6. Widespread accumulation of [3H]testosterone in the spinal cord of a wild bird with an elaborate courtship display
Elaborate courtship displays are relatively common features of the masculine reproductive behavior in birds. However, little is known about their neural and hormonal control. One bird that performs such a display is the golden-collared manakin (Manacus vitellinus) of Panamanian forests. Adult males, but not females, perform a physically intense display requi
The National Academy of Sciences.
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7. Females produce larger eggs for large males in a paternal mouthbrooding fish.
When individuals receive different returns from their reproductive investment dependent on mate quality, they are expected to invest more when breeding with higher quality mates. A number of studies over the past decade have shown that females may alter their reproductive effort depending on the quality/attractiveness of their mate. However, to date, despite
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8. Male mate choice selects for female coloration in a fish
Although sexual selection theory has proved successful in explaining a wide array of male ornaments, the function of ornaments occurring in females is largely unknown. Traditionally, female ornaments have been considered nonfunctional, being merely a genetically correlated response to selection for male ornamentation. However, this hypothesis is only relevan
The National Academy of Sciences.
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9. Patterns of sperm precedence and predictors of paternity in the Trinidadian guppy.
Despite its widespread occurrence in animals, sperm competition has been studied in a limited range of taxa. Among the most neglected groups in this respect are internally fertilizing fish in which virtually nothing is known about the dynamics of sperm competition. In this study, we examined the outcome of sperm competition when virgin female guppies mated w