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SHORT COMMUNICATION Habitat patch size and isolation as predictors of occupancy
 

Summary: SHORT COMMUNICATION
Habitat patch size and isolation as predictors of occupancy
and number of argyrodine spider kleptoparasites
in Nephila webs
Ingi Agnarsson
Received: 13 October 2010 /Revised: 22 November 2010 /Accepted: 24 November 2010 /Published online: 7 December 2010
# Springer-Verlag 2010
Abstract How fully a suitable habitat patch is utilized by
organisms depends crucially on patch size and isolation.
Testing this interplay is made difficult in many systems by
the arbitrariness of defining a "habitat patch", measuring its
boarders, and relatively low detection probability of the
inhabitants. Spider webs as habitat patches for obligate web
kleptoparasites are free from these problems. Each individ-
ual web is a highly discrete and readily measured habitat
patch, and the detection probability of argyrodine spider
kleptoparasites is very nearly 1. Hence, spider webs emerge
as simple systems for ecological models such as patch
occupancy and metapopulation biology. Recently, I showed
that the distribution of kleptoparasites among host webs

  

Source: Agnarsson, Ingi - Department of Biology, Universidad de Puerto Rico

 

Collections: Biology and Medicine