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A spatially integrated framework for assessing socioecological drivers of carnivore decline

Gálvez, Nicolás, Guillera-Arroita, Gurutzeta, St. John, Freya A.V., Schuttler, Elke, Macdonald, David W., Davies, Zoe G. (2018) A spatially integrated framework for assessing socioecological drivers of carnivore decline. Journal of Applied Ecology, 55 (3). pp. 1393-1405. ISSN 0021-8901. E-ISSN 1365-2664. (doi:10.1111/1365-2664.13072) (KAR id:64233)

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1. Habitat loss, fragmentation and degradation are key threats to the long-term persistence of carnivores, which are also susceptible to direct persecution by people. Integrating natural and social science methods to examine how habitat configuration/quality and human-predator relations may interact in space and time to effect carnivore populations within human-dominated landscapes will help prioritise conservation investment and action effectively.

2. We propose a socio-ecological modelling framework to evaluate drivers of carnivore decline in landscapes where predators and people coexist. By collecting social and ecological data at the same spatial scale, candidate models can be used to quantify and tease apart the relative importance of different threats.

3. We apply our methodological framework to an empirical case study, the threatened guiña (Leopardus guigna) in the temperate forest ecoregion of southern Chile, to illustrate its use. Existing literature suggests that the species is declining due to habitat loss, fragmentation and persecution in response to livestock predation. Data used in modelling were derived from four seasons of camera-trap surveys, remote-sensed images and household questionnaires.

4. Occupancy dynamics were explained by habitat configuration/quality covariates rather than by human-predator relations. Guiñas can tolerate a high degree of habitat loss (>80% within a home range). They are primarily impacted by fragmentation and land subdivision (larger farms being divided into smaller ones). Ten percent of surveyed farmers (N=233) reported illegally killing the species over the past decade.

5. Synthesis and applications. By integrating ecological and social data into a single modelling framework, our study demonstrates the value of an interdisciplinary approach to assessing the potential threats to a carnivore. It has allowed us to tease apart effectively the relative importance of different potential extinction pressures, make informed conservation recommendations and prioritise where future interventions should be targeted. Specifically for the guiña, we have identified that human-dominated landscapes with large intensive farms can be of conservation value, as long as an appropriate network of habitat patches are maintained within the matrix. Conservation efforts to secure the long-term persistence of the species should focus on reducing habitat fragmentation, rather than human persecution in our study system.

Item Type: Article
DOI/Identification number: 10.1111/1365-2664.13072
Uncontrolled keywords: camera trapping, conservation, randomised response technique, habitat fragmentation, habitat loss, human-wildlife co-existence, illegal killing, güiña, kodkod, multi-season occupancy modelling
Subjects: Q Science > QH Natural history > QH75 Conservation (Biology)
Divisions: Divisions > Division of Human and Social Sciences > School of Anthropology and Conservation > DICE (Durrell Institute of Conservation and Ecology)
Depositing User: Zoe Davies
Date Deposited: 03 Nov 2017 13:25 UTC
Last Modified: 08 Dec 2022 23:41 UTC
Resource URI: (The current URI for this page, for reference purposes)
Davies, Zoe G.:
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