Influence of intra-and interspecific variation in predator–prey body size ratios on trophic interaction strengths:

Cuthbert, Ross N; Wasserman, Ryan J; Dalu, Tatenda; Kaiser, Horst; Weyl, Olaf L F; Dick, Jaimie T A; Sentis, Arnaud; McCoy, Michael W; Alexander, Mhairi E

Title: Influence of intra-and interspecific variation in predator–prey body size ratios on trophic interaction strengths:
Creator: Cuthbert, Ross N
Creator: Wasserman, Ryan J
Creator: Dalu, Tatenda
Creator: Kaiser, Horst
Creator: Weyl, Olaf L F
Creator: Dick, Jaimie T A
Creator: Sentis, Arnaud
Creator: McCoy, Michael W
Creator: Alexander, Mhairi E
Date Issued: 2020
Date: 2020
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/149358
Identifier: vital:38839
Identifier: https://0-doi.org.wam.seals.ac.za/10.1002/ece3.6332
Description: Predation is a pervasive force that structures food webs and directly influences ecosystem functioning. The relative body sizes of predators and prey may be an important determinant of interaction strengths. However, studies quantifying the combined influence of intra‐ and interspecific variation in predator–prey body size ratios are lacking. We use a comparative functional response approach to examine interaction strengths between three size classes of invasive bluegill and largemouth bass toward three scaled size classes of their tilapia prey. We then quantify the influence of intra‐ and interspecific predator–prey body mass ratios on the scaling of attack rates and handling times.
Format: 17 pages
Format: pdf
Language: English
Relation: Ecology and Evolution
Relation: Cuthbert, R.N., Wasserman, R.J., Dalu, T., Kaiser, H., Weyl, O.L., Dick, J.T., Sentis, A., McCoy, M.W. and Alexander, M.E., 2020. Influence of intra‐and interspecific variation in predator–prey body size ratios on trophic interaction strengths. Ecology and Evolution.
Relation: Ecology and Evolution volume number June 2020 2045-7758
Rights: Publisher
Rights: Use of this resource is governed by the terms and conditions of the Wiley Library Online Terms of Use Statement (https://onlinelibrary.wiley.com/terms-and-conditions)

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Kaiser, Horst (Prof)

Wasserman, Ryan J (Assoc Prof)

RU Department of Ichthyology and Fisheries Science

RU South African Institute for Aquatic Biodiversity (SAIAB)

RU Department of Zoology and Entomology

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