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Article: Spider size and guarding of offspring affect Paraphidippus aurantius (Araneae, Salticidae) response to predation threat.
- Article from:
- Journal of Arachnology
- Article date:
- January 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 American Arachnological Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT. We tested the hypothesis that the response of Paraphidippus aurantius (Lucas 1833) (Salticidae) to a simulated threat of predation would depend on a combination of spider size and reproductive status. In ponderosa pine forests of Colorado we located nests with spiders of varying sizes that were either adult female spiders guarding offspring or juvenile female and male spiders. To simulate a predator threat we applied a disturbance to the sides of spider nests using repeated puffs of air expressed from a rubber bulb or by blowing. We recorded the threat intensity (number of puffs) required to displace spiders from their nests, and then monitored the immediate ...
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