Costs and the Diversification of Exaggerated Animal Structures

Sexual selection can favor production of extravagant ornaments and weapons in the contest for access to the opposite sex. Existing explanations for the diversity of sexually selected structures focus on reproductive benefits conferred by particular ornament or weapon morphologies. Here, I show that...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 2001-02, Vol.291 (5508), p.1534-1536
1. Verfasser:	Emlen, Douglas J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Anatomy Animal anatomy Animal horns Animal reproduction Animal wings Animals Beetles Behavior, Animal Biological and medical sciences Biological Evolution Biology Capital costs Coleoptera - anatomy & histology Coleoptera - growth & development Coleoptera - physiology Comparative Analysis Cost structure Dung beetles Ecosystem Evolution Female Flight, Animal Fundamental and applied biological sciences. Psychology Growth Horns Horns (Anatomy) Horns - anatomy & histology Horns - growth & development Insect morphology Insecta Insects Invertebrates Male Male animals Metamorphosis, Biological Morphology. Histology. Cytology Onthophagus Production costs Scarabaeidae Selection, Genetic Sense Organs - anatomy & histology Sense Organs - growth & development Sex Characteristics Sexual Behavior, Animal Sexual selection (Natural selection) Sexual selection in animals Species Specificity Thorax Weapons Wings, Animal - anatomy & histology Wings, Animal - growth & development
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