作者
H Martin Schaefer, Veronika Schaefer, Misha Vorobyev
发表日期
2007/1
期刊
the american naturalist
卷号
169
期号
S1
页码范围
S159-S169
出版商
The University of Chicago Press
简介
Reproduction in plants often requires animal vectors. Fruit and flower colors are traditionally viewed as an adaptation to facilitate detection for pollinators and seed dispersers. This longstanding hypothesis predicts that fruits are easier to detect against their own leaves compared with those of different species. We tested this hypothesis by analyzing the chromatic contrasts between 130 bird‐dispersed fruits and their respective backgrounds according to avian vision. From a bird’s view, fruits are not more contrasting to their own background than to those of other plant species. Fruit colors are therefore not adapted toward maximized conspicuousness for avian seed dispersers. However, secondary structures associated with fruit displays increase their contrasts. We used fruit colors to assess …
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