Agelenids of the World

Systematics and Taxonomy of Agelenidae, a Worldwide distributed Spider Family

Tests for sex differences in fitness-linked traits in the spider Agelenopsis aperta (Araneae: Agelenidae)

Publication Type:Journal Article
Year of Publication:1994
Authors:F. Singer, Riechert S. E.
Journal:Journal of Insect Behavior
Date Published:1994
ISBN Number:0892-7553
Keywords:Agelenopsis aperta (Araneae)., Agelenopsis aperta [Weight / / Fitness indicator, Animal constructions, Behaviour, Biometrics, Carrizozo, comparative test of, comparative test of sexual differences] [Natural, comparative tests for sex differences]., differences] [Agonistic behaviour / / Link to fitness indicator & tests, Ecology, Evolution, Fitness linked traits, for sex differences] [Territoriality / / ] [Survival / / Body mass, for sex differences] [Webs / / Site selection, Habitat utilization, Land zones, link to fitness & test, Nearctic region, North America, Population dynamics, preference / / Web site quality discrimination, relations & linked behavioural traits, Reproduction, selection / / Fitness linked behavioural traits, Sex differences, sex differences in linked traits] [Behavioural sex differences / /, test of sex differences] [Habitat, tests for sex, USA, USA] [New Mexico / /

The idea that traits linked to individual fitness may differ between males and females was tested in the desert funnel-web spider, Agelenopsis aperta. The study entailed comparison of juvenile male and female behavior with respect to three traits previously shown to be linked to female body mass and ultimately to individual female fitness: habitat discrimination, territorial behavior, and agonistic behavior. As juveniles, male and female spiders behave similarly: they utilize the same habitat cues in locating web sites, maintain similar territory sizes, and exhibit the same behavior patterns in territorial disputes. Like females, males that obtain the highest-quality web sites achieve a greater body mass and are more likely to survive to maturity.

URL:<Go to ISI>://ZOOREC:ZOOR13100049255
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