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Water volume differentially modifies copepod predatory strengths on two prey types

Cuthbert, R. N., Sithagu, R., Weyl, O. L. F., Wasserman, R. J., Dick, J. T. A., Callaghan, A., Froneman, P. W., Foord, S. and Dalu, T. (2020) Water volume differentially modifies copepod predatory strengths on two prey types. Limnologica, 81. 125747. ISSN 0075-9511

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To link to this item DOI: 10.1016/j.limno.2020.125747

Abstract/Summary

Predatory interaction strengths are highly context-dependent, and in temporary aquatic ecosystems, may be affected by water volume changes. We examine the influence of water volume on Lovenula raynerae (Copepoda) functional responses towards two temporary pond prey types. Daphnia prey risk was not affected by increasing water volume, whereas for Culex prey risk was reduced. Accordingly, water volume changes through the hydroperiod may have species-specific effects on prey, with implications for population persistence under environmental change.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Biological Sciences > Ecology and Evolutionary Biology
ID Code:88541
Publisher:Elsevier

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