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Context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape

Carnivore intraguild dynamics depend on a complex interplay of environmental affinities and interspecific interactions. Context‐dependency is commonly expected with varying suites of interacting species and environmental conditions but seldom empirically described. In South Africa, decentralized app...

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Autores principales: Curveira‐Santos, Gonçalo, Gigliotti, Laura, Sutherland, Chris, Rato, Daniela, Santos‐Reis, Margarida, Swanepoel, Lourens H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9424669/
https://www.ncbi.nlm.nih.gov/pubmed/36052301
http://dx.doi.org/10.1002/ece3.9239
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author Curveira‐Santos, Gonçalo
Gigliotti, Laura
Sutherland, Chris
Rato, Daniela
Santos‐Reis, Margarida
Swanepoel, Lourens H.
author_facet Curveira‐Santos, Gonçalo
Gigliotti, Laura
Sutherland, Chris
Rato, Daniela
Santos‐Reis, Margarida
Swanepoel, Lourens H.
author_sort Curveira‐Santos, Gonçalo
collection PubMed
description Carnivore intraguild dynamics depend on a complex interplay of environmental affinities and interspecific interactions. Context‐dependency is commonly expected with varying suites of interacting species and environmental conditions but seldom empirically described. In South Africa, decentralized approaches to conservation and the resulting multi‐tenure conservation landscapes have markedly altered the environmental stage that shapes the structure of local carnivore assemblages. We explored assemblage‐wide patterns of carnivore spatial (residual occupancy probability) and temporal (diel activity overlap) co‐occurrence across three adjacent wildlife‐oriented management contexts—a provincial protected area, a private ecotourism reserve, and commercial game ranches. We found that carnivores were generally distributed independently across space, but existing spatial dependencies were context‐specific. Spatial overlap was most common in the protected area, where species occur at higher relative abundances, and in game ranches, where predator persecution presumably narrows the scope for spatial asymmetries. In the private reserve, spatial co‐occurrence patterns were more heterogeneous but did not follow a dominance hierarchy associated with higher apex predator densities. Pair‐specific variability suggests that subordinate carnivores may alternate between pre‐emptive behavioral strategies and fine‐scale co‐occurrence with dominant competitors. Consistency in species‐pairs diel activity asynchrony suggested that temporal overlap patterns in our study areas mostly depend on species' endogenous clock rather than the local context. Collectively, our research highlights the complexity and context‐dependency of guild‐level implications of current management and conservation paradigms; specifically, the unheeded potential for interventions to influence the local network of carnivore interactions with unknown population‐level and cascading effects.
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spelling pubmed-94246692022-08-31 Context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape Curveira‐Santos, Gonçalo Gigliotti, Laura Sutherland, Chris Rato, Daniela Santos‐Reis, Margarida Swanepoel, Lourens H. Ecol Evol Research Articles Carnivore intraguild dynamics depend on a complex interplay of environmental affinities and interspecific interactions. Context‐dependency is commonly expected with varying suites of interacting species and environmental conditions but seldom empirically described. In South Africa, decentralized approaches to conservation and the resulting multi‐tenure conservation landscapes have markedly altered the environmental stage that shapes the structure of local carnivore assemblages. We explored assemblage‐wide patterns of carnivore spatial (residual occupancy probability) and temporal (diel activity overlap) co‐occurrence across three adjacent wildlife‐oriented management contexts—a provincial protected area, a private ecotourism reserve, and commercial game ranches. We found that carnivores were generally distributed independently across space, but existing spatial dependencies were context‐specific. Spatial overlap was most common in the protected area, where species occur at higher relative abundances, and in game ranches, where predator persecution presumably narrows the scope for spatial asymmetries. In the private reserve, spatial co‐occurrence patterns were more heterogeneous but did not follow a dominance hierarchy associated with higher apex predator densities. Pair‐specific variability suggests that subordinate carnivores may alternate between pre‐emptive behavioral strategies and fine‐scale co‐occurrence with dominant competitors. Consistency in species‐pairs diel activity asynchrony suggested that temporal overlap patterns in our study areas mostly depend on species' endogenous clock rather than the local context. Collectively, our research highlights the complexity and context‐dependency of guild‐level implications of current management and conservation paradigms; specifically, the unheeded potential for interventions to influence the local network of carnivore interactions with unknown population‐level and cascading effects. John Wiley and Sons Inc. 2022-08-29 /pmc/articles/PMC9424669/ /pubmed/36052301 http://dx.doi.org/10.1002/ece3.9239 Text en © 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Curveira‐Santos, Gonçalo
Gigliotti, Laura
Sutherland, Chris
Rato, Daniela
Santos‐Reis, Margarida
Swanepoel, Lourens H.
Context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape
title Context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape
title_full Context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape
title_fullStr Context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape
title_full_unstemmed Context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape
title_short Context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape
title_sort context‐dependency in carnivore co‐occurrence across a multi‐use conservation landscape
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9424669/
https://www.ncbi.nlm.nih.gov/pubmed/36052301
http://dx.doi.org/10.1002/ece3.9239
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