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Provedor de dados:  Acta Amazonica
País:  Brazil
Título:  Rapid assessment of fruit-color selection by birds using artificial fruits at local scale in Central Amazonia
Autores:  Arruda,Rafael
Rodrigues,Domingos J.
Izzo,Thiago J.
Data:  2008-01-01
Ano:  2008
Palavras-chave:  Fruit color
Paired experimental design
Background foliage coloration
Contrast hypothesis
Resumo:  Modeling clays have been used in several ecological experiments and have proved to be an important tool to variables control. The objective of our study was to determine if fruit color in isolated and grouped displays influences the fruit selection by birds in the field using artificial fruits. Data were collected in six plots distributed homogeneously in 3 km long trails with a minimum distance of 0.5 km. We used a paired experimental design to establish our experiments, so that all treatments were available to the local bird community in each plot. Overall, red was more pecked than brown and white. Isolated red and brown displays were significantly more pecked than others display. Even though our study was conducted in small spatial scales, artificial fruits appeared to be efficient in register fruit consumption attempts by bird. Although inconclusive about selective forces that sharp the dynamics of fruit color polymorphisms and choice by frugivorous birds, our findings corroborate recent studies wherein birds showed preferences by high- over low-contrast fruit signals.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Instituto Nacional de Pesquisas da Amazônia
Relação:  10.1590/S0044-59672008000200011
Formato:  text/html
Fonte:  Acta Amazonica v.38 n.2 2008
Direitos:  info:eu-repo/semantics/openAccess

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