publication . Article . 2010

Male density affects large-male advantage in the golden silk spider, Nephila clavipes

Clare C. Rittschof;
Open Access
  • Published: 01 Jan 2010 Journal: Behavioral Ecology, volume 21, pages 979-985 (issn: 1045-2249, eissn: 1465-7279, Copyright policy)
  • Publisher: Oxford University Press (OUP)
Abstract
Across a variety of animal taxa, the outcome of male--male contests depends on male body size; winners are usually the larger males or the males with bigger weapons. However, high male density can either increase or reverse large-male advantage because density changes the frequency and intensity of male--male interactions. In the golden orb-web spider Nephila clavipes, large males have a competitive advantage in male--male contests. However, this species shows more than 2-fold variation in male body size and highly variable local male density (the number of males on a female's web). To test how male density affects large-male advantage, I manipulated male densit...
Subjects
free text keywords: Animal Science and Zoology, Ecology, Evolution, Behavior and Systematics, Positive relationship, Sexual selection, Golden silk spider, Nephila clavipes, biology.organism_classification, biology, Spider, Body size, Ecology
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