Alarm communication networks as a driver of community structure in African savannah herbivores

Meise, Kristine, Franks, Daniel W and Bro-Jorgensen, Jakob ORCID: 0000-0003-2899-8477 (2020) Alarm communication networks as a driver of community structure in African savannah herbivores. Ecology Letters, 23 (02). pp. 293-304.

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Abstract

Social information networks have the potential to shape the spatial structure of ecological communities by promoting the formation of mixed‐species groups. However, what actually drives social affinity between species in the wild will depend on the characteristics of the species available to group. Here we first present an agent‐based model that predicts trait‐related survival benefits from mixed‐species group formation in a multi‐species community and we then test the model predictions in a community‐wide field study of African savannah herbivores using multi‐layered network analysis. We reveal benefits from information transfer about predators as a key determinant of mixed‐species group formation, and that dilution benefits alone are not enough to explain patterns in interspecific sociality. The findings highlight the limitations of classical ecological approaches focusing only on direct trophic interactions when analysing community structure and suggest that declines in species occupying central social network positions, such as key informants, can have significant repercussions throughout communities.

Item Type:	Article
Uncontrolled Keywords:	Agent‐based modelling, antipredator strategies, interspecific information transfer, mixed‐species groups, resource competition, social affinity, social information use, social network analysis, spatial ecology, ungulates
Depositing User:	Symplectic Admin
Date Deposited:	06 Jan 2020 11:06
Last Modified:	19 Jan 2023 00:11
DOI:	10.1111/ele.13432
Open Access URL:	https://doi.org/10.1111/ele.13432
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3069364

Available Versions of this Item

• Alarm communication networks as a driver of community structure in African savannah herbivores. (deposited 18 Nov 2019 09:39)
  • Alarm communication networks as a driver of community structure in African savannah herbivores. (deposited 06 Jan 2020 11:06) [Currently Displayed]