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1 December 2011 Aggregations of Sphodros rufipes (Araneae: Atypidae) in an urban forest
Steven B. Reichling, Christopher Baker, Christina Swatzell
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A large population of Sphodros rufipes (Latreille 1829) was discovered in a municipal park in Memphis, Tennessee. We examined potential stem diameter preference, frequency of web attachment to available tree species and the spatial distribution patterns of spiders and potential attachment structures. A wide range of structure diameters were utilized for web attachment. The association of pursewebs to tree taxa was independent of the frequency of tree taxa occurrence. The spacing of vegetation stems and trunks was approximately random, but spiders exhibited a nonrandom, aggregated distribution, which was more pronounced in subadults than adults. The factors influencing S. rufipes to occur in aggregations cannot be explained by the spatial proximity of potential attachment structures in the forest.

Steven B. Reichling, Christopher Baker, and Christina Swatzell "Aggregations of Sphodros rufipes (Araneae: Atypidae) in an urban forest," The Journal of Arachnology 39(3), 503-505, (1 December 2011).
Received: 5 May 2010; Published: 1 December 2011
Purseweb spider
random distribution
tree preference
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