Examining intraspecific multiple predator effects across shifting predator sex ratios:

Cuthbert, Ross N; Dalu, Tatenda; Wasserman, Ryan J; Weyl, Olaf L F; Froneman, P William; Callaghan, Amanda; Dick, Jaimie T A

Title: Examining intraspecific multiple predator effects across shifting predator sex ratios:
Creator: Cuthbert, Ross N
Creator: Dalu, Tatenda
Creator: Wasserman, Ryan J
Creator: Weyl, Olaf L F
Creator: Froneman, P William
Creator: Callaghan, Amanda
Creator: Dick, Jaimie T A
Date Issued: 2020
Date: 2020
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/150119
Identifier: vital:38941
Identifier: https://doi.org/10.1016/j.baae.2020.03.002
Description: Predator-predator interactions, or “multiple predator effects” (MPEs), are pervasive in the structuring of communities and complicate predictive quantifications of ecosystem dynamics. The nature of MPEs is also context-dependent, manifesting differently among species, prey densities and habitat structures. However, there has hitherto been a lack of consideration for the implications of intraspecific demographic variation within populations for the strength of MPEs. The present study extends MPE concepts to examine intraspecific interactions among male and female predators across differences in prey densities using a functional response approach. Focusing on a copepod-mosquito model predator-prey system, interaction strengths of different sex ratio pairs of Lovenula raynerae were quantified towards larval Culex pipiens complex prey, with observations compared to both additive and substitutive model predictions.
Format: 9 pages
Format: pdf
Language: English
Relation: Basic and Applied Ecology
Relation: Cuthbert, R.N., Dalu, T., Wasserman, R.J., Weyl, O.L., Froneman, P.W., Callaghan, A. and Dick, J.T., 2020. Examining intraspecific multiple predator effects across shifting predator sex ratios. Basic and Applied Ecology, 45. Pp.12-21.
Relation: Basic and Applied Ecology volume 45 number 12 21 June 2020 1439-1791
Rights: Publisher
Rights: Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)

Hits: 2335
Visitors: 2441
Downloads: 136

Collections

Weyl, Olaf L F (Prof)

Froneman, Pierre William (Prof)

RU South African Institute for Aquatic Biodiversity (SAIAB)

RU Department of Zoology and Entomology

SDG 15. Life On Land

		Thumbnail	File	Description	Size	Format
View Details Download			SOURCE1	Examining intraspecific multiple predator effects across shifting predator sex ratios.pdf	621 KB	Adobe Acrobat PDF	View Details Download