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Constraints on body size distributions: An experimental test of the habitat architecture hypothesis
Citation
Leaper, R and Raffaelli, D and Emes, CE and Manly, B, Constraints on body size distributions: An experimental test of the habitat architecture hypothesis, Journal of Animal Ecology, 70, (2) pp. 248-259. ISSN 0021-8790 (2001) [Refereed Article]
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Copyright Statement
The definitive published version is available online at: http://onlinelibrary.wiley.com/
Official URL: http://onlinelibrary.wiley.com/
DOI: doi:10.1046/j.1365-2656.2001.00493.x
Abstract
1.Holling (1992) has claimed that a range of mechanisms, including habitat architecture,
may be responsible for discontinuities in body-size distributions across a broad range of spatial and temporal scales.
2.We tested this proposition in the marine benthos by manipulating habitat architecture directly. Specifically, we constructed artificial sediments (using glass beads) of uniform large or small particles, to change interstitial pore diameters at two estuarine sites.
3.A combination of kernel estimation and smoothed bootstrap re-sampling showed
that there was a high and varaible degree of modality in body-size (15 modes) in the experimental bead treatments and controls and no obvious evidence for a trough at organism size 0·51 mm ESD.
4.We propose that habitat architecture may not be as intimately related to body-size patterns as originally claimed, at least at smaller scales where experimental tests are tractable.
Item Details
Item Type: | Refereed Article |
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Keywords: | body-size spectra, habitat discontinuity, kernel estimation, marine intertidal |
Research Division: | Biological Sciences |
Research Group: | Ecology |
Research Field: | Community ecology (excl. invasive species ecology) |
Objective Division: | Environmental Management |
Objective Group: | Management of Antarctic and Southern Ocean environments |
Objective Field: | Biodiversity in Antarctic and Southern Ocean environments |
UTAS Author: | Leaper, R (Dr Rebecca Leaper) |
ID Code: | 70562 |
Year Published: | 2001 |
Web of Science® Times Cited: | 27 |
Deposited By: | Sustainable Marine Research Collaboration |
Deposited On: | 2011-06-28 |
Last Modified: | 2011-10-12 |
Downloads: | 0 |
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