EIMER'S EVOLUTION OF BUTTERFLIES
نویسندگان
چکیده
منابع مشابه
Evolution of color and vision of butterflies.
Butterfly eyes consist of three types of ommatidia, which are more or less randomly arranged in a spatially regular lattice. The corneal nipple array and the tapetum, optical structures that many but not all butterflies share with moths, suggest that moths are ancestral to butterflies, in agreement with molecular phylogeny. A basic set of ultraviolet-, blue- and green-sensitive receptors, encou...
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Competition for mates has resulted in sophisticated mechanisms of male control over female reproduction. Antiaphrodisiacs are pheromones transferred from males to females during mating that reduce attractiveness of females to subsequent courting males. Antiaphrodisiacs generally help unreceptive females reduce male harassment. However, lack of control over pheromone release by females and male ...
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Patterns of geographic variation and evolution are examined in polytypic butterflies. It is concluded that genetic and evolutionary cohesion at the full species level is limited to monotypic organisms that are strongly vagile or migratory. Polytypic species with a fragmented population structure lack such cohesion, and each isolated population tends to function as an independent evolutionary un...
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The power of hybridization between species to generate variation and fuel adaptation is poorly understood despite long-standing interest. There is, however, increasing evidence that hybridization often generates biodiversity, including via hybrid speciation. We tested the hypothesis of hybrid speciation in butterflies occupying extreme, high-altitude habitats in four mountain ranges in western ...
متن کاملColor-Pattern Evolution in Response to Environmental Stress in Butterflies
It is generally accepted that butterfly wing color-patterns have ecological and behavioral functions that evolved through natural selection. However, particular wing color-patterns may be produced physiologically in response to environmental stress, and they may lack significant function. These patterns would represent an extreme expression of phenotypic plasticity and can eventually be fixed g...
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ژورنال
عنوان ژورنال: Science
سال: 1896
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.3.53.26