Reproductive decisions under threat of predation: squirrel treefrog (Hyla squirella) responses to banded sunfish (Enneacanthus obesus)
Binckley, Christopher A. and Resetarits, William J. (2002) Reproductive decisions under threat of predation: squirrel treefrog (Hyla squirella) responses to banded sunfish (Enneacanthus obesus). Oecologia, 130, (1), 157-161. (doi:10.1007/s004420100781).
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Description/Abstract
We tested whether the presence of a predator (non-lethal effect) could produce patterns of prey distribution and abundance attributed historically to direct mortality. Sixteen experimental ponds (1,000 l cattle watering tanks) were established; eight containing seven enclosed banded sunfish, Enneacanthus obesus, and eight predator-free controls. Ponds were colonized by ovipositing squirrel treefrogs, Hyla squirella, and a total of 33,128 eggs and tadpoles were recovered from the experimental ponds. Significantly more eggs and tadpoles (94.8%) were recorded from the predator-free treatments. These data support an alternative mechanism, based primarily on maternal behavior, explaining classic patterns of anuran species composition across a landscape of breeding sites.
| Item Type: | Article |
|---|---|
| ISSNs: | 0029-8549 (print) |
| Related URLs: | |
| Keywords: | oviposition, non-lethal effects, predation, reproduction, anuran |
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Divisions: | University Structure - Pre August 2011 > School of Biological Sciences |
| Item ID: | 56817 |
| Date Deposited: | 08 Aug 2008 |
| Last Modified: | 12 May 2013 01:19 |
| Contributors: | Binckley, Christopher A. (Author) Resetarits, William J. (Author) |
| Date: | January 2002 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/56817 |
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