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1 May 2010 Spatio-Temporal Dynamics of Caddisflies in Streams of Southern Western Ghats
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The dynamics of physico-chemical factors and their effects on caddisfly communities were examined in 29 streams of southern Western Ghats. Monthly samples were collected from the Thadaganachiamman stream of Sirumalai Hills, Tamil Nadu from May 2006 to April 2007. Southwest and northeast monsoons favored the existence of caddisfly population in streams. A total of 20 caddisfly taxa were collected from 29 streams of southern Western Ghats. Hydropsyche (Trichoptera: Hydropsychidae) were more widely distributed throughout sampling sites than were the other taxa. Canonical correspondence analysis showed that elevation was a major variable and pH, stream order, and stream substrates were minor variables affecting taxa richness. These results suggested that habitat heterogeneity and seasonal changes were stronger predictors of caddisfly assemblages than large-scale patterns in landscape diversity.

This is an open access paper. We use the Creative Commons Attribution 3.0 license that permits unrestricted use, provided that the paper is properly attributed.
S. Dinakaran and S. Anbalagan "Spatio-Temporal Dynamics of Caddisflies in Streams of Southern Western Ghats," Journal of Insect Science 10(46), 1-15, (1 May 2010).
Received: 20 December 2007; Accepted: 1 August 2008; Published: 1 May 2010

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