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Resource use within a community of Hawaiian spiders (Araneae: Tetragnathidae)

Todd A. Blackledge, Greta J. Binford and Rosemary G. Gillespie
Annales Zoologici Fennici
Vol. 40, No. 3 (2003), pp. 293-303
Stable URL: http://www.jstor.org/stable/23736810
Page Count: 11
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Resource use within a community of Hawaiian spiders (Araneae: Tetragnathidae)
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Abstract

We examined the relationship between web architecture, microhabitat utilization, and prey capture for five sympatric species of spiders (Araneae: Tetragnathidae: Tetragnatha Latreille) in Waikamoi Preserve, East Maui, Hawaiian Islands. We found that each species of spider built webs that differed from its congeners in one or more architectural and microhabitat features, and that each species also differed in the types of insect prey they captured. Although the causal mechanisms remain to be tested, we suggest that species-specific differences in web building behaviors could account for the differences found in utilization of prey and microhabitat resources. Furthermore, the ability to construct webs with different architectures may be related to the extraordinary diversification of endemic web-building Hawaiian Tetragnatha.

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