Table of Contents Author Guidelines Submit a Manuscript
International Journal of Zoology
Volume 2012 (2012), Article ID 793419, 13 pages
http://dx.doi.org/10.1155/2012/793419
Research Article

Effects of Forest Regeneration on Crickets: Evaluating Environmental Drivers in a 300-Year Chronosequence

1Postgraduate Programme in Entomology, Department of Entomology, Federal University of Viçosa, 36570000 Viçosa, MG, Brazil
2Laboratory of Orthoptera, Department of General Biology, Federal University of Viçosa, 36570000 Viçosa, MG, Brazil
3Postgraduate Programme in Ecology, Department of General Biology, Federal University of Viçosa, 36570000 Viçosa, MG, Brazil
4Faculty of Engineering, State University of Minas Gerais-UEMG, 35930314 João Monlevade, MG, Brazil
5Laboratory of Community Ecology, Department of General Biology, Federal University of Viçosa, 36570000 Viçosa, MG, Brazil

Received 1 March 2012; Revised 9 July 2012; Accepted 10 July 2012

Academic Editor: Thomas Iliffe

Copyright © 2012 Neucir Szinwelski et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We evaluated the relation of cricket species richness and composition with forest regeneration time, evaluating canopy and litter depth as environmental drivers. Effects of forest patch area, nearest distance to the 300-year patch, cricket abundance, sampling sufficiency, and nestedness were also evaluated. We collected 1174 individuals (five families, 19 species). Species richness increased asymptotically with regeneration time and linearly with canopy cover and litter depth. Canopy cover increased linearly, while litter depth increased asymptotically. Richness was not affected by patch area and nearest distance to the 300-year patch. Richness increased with cricket abundance, and this explanation could not be distinguished from regeneration time, evidencing collinearity of these two explanatory variables. Rarefaction curve slopes increased with regeneration time. Species composition differed among patches, with no nested pattern. We suggest that regeneration and consequent increases in canopy and litter promote recovery of cricket biodiversity, abundance, and changes in species composition. We conclude that the recovery of cricket diversity involves an increase along the spatial scale of complementarity, together with a change in species composition.