Linking Vegetation Structure and Spider Diversity in Riparian and Adjacent Habitats in Two Rivers of Central Argentina: An Analysis at Two Conceptual Levels

Environmental Entomology
Mariana GriottiNelson E Ferretti

Abstract

The link between vegetation structure and spider diversity has been well explored in the literature. However, few studies have compared spider diversity and its response to vegetation at two conceptual levels: assemblage (species diversity) and ensemble (guild diversity). Because of this, we studied spider diversity in riparian and adjacent habitats of a river system from the Chacoan subregion in central Argentina and evaluated their linkage with vegetation structure at these two levels. To assess vegetation structure, we measured plant species richness and vegetation cover in the herb and shrub - tree layers. We collected spiders for over 6 months by using vacuum netting, sweep netting and pitfall traps. We collected 3,808 spiders belonging to 119 morphospecies, 24 families and 9 guilds. At spider assemblage level, SIMPROF analysis showed significant differences among studied habitats. At spider ensemble level, nevertheless, we found no significant differences among habitats. Concerning the linkage with vegetation structure, BIOENV test showed that spider diversity at either assemblage or ensemble level was not significantly correlated with the vegetation variables assessed. Our results indicated that spider diversity was not ...Continue Reading

References

May 17, 2006·Trends in Ecology & Evolution·Brian J McGillMark Westoby
Sep 16, 2006·Ecology Letters·Shelley C ClarkeMahmood S Shivji
Jun 23, 2007·The Journal of Animal Ecology·Laurie B Marczak, John S Richardson
Jul 9, 2011·PloS One·Pedro CardosoJonathan A Coddington
May 31, 2014·Environmental Entomology·Sue Yeon LeeJoon-Ho Lee
Dec 8, 2015·Ecology and Evolution·James T StroudJennifer Sweatman

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