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Lions in a coexistence landscape: Repurposing a traditional field technique to monitor an elusive carnivore
Throughout Africa, lions are thought to have experienced dramatic population decline and range contraction. The greatest declines are likely occurring in human‐dominated landscapes where reliably estimating lion populations is particularly challenging. By adapting a method that has thus far only bee...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8888262/ https://www.ncbi.nlm.nih.gov/pubmed/35261749 http://dx.doi.org/10.1002/ece3.8662 |
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author | Western, Guy Elliot, Nicholas B. Sompeta, Steiner L. Broekhuis, Femke Ngene, Shadrack Gopalaswamy, Arjun M. |
author_facet | Western, Guy Elliot, Nicholas B. Sompeta, Steiner L. Broekhuis, Femke Ngene, Shadrack Gopalaswamy, Arjun M. |
author_sort | Western, Guy |
collection | PubMed |
description | Throughout Africa, lions are thought to have experienced dramatic population decline and range contraction. The greatest declines are likely occurring in human‐dominated landscapes where reliably estimating lion populations is particularly challenging. By adapting a method that has thus far only been applied to animals that are habituated to vehicles, we estimate lion density in two community areas in Kenya's South Rift, located more than 100 km from the nearest protected area (PA). More specifically, we conducted an 89‐day survey using unstructured spatial sampling coupled with playbacks, a commonly used field technique, and estimated lion density using spatial capture‐recapture (SCR) models. Our estimated density of 5.9 lions over the age of 1 year per 100 km(2) compares favorably with many PAs and suggests that this is a key lion population that could be crucial for connectivity across the wider landscape. We discuss the possible mechanisms supporting this density and demonstrate how rigorous field methods combined with robust analyses can produce reliable population estimates within human‐dominated landscapes. |
format | Online Article Text |
id | pubmed-8888262 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-88882622022-03-07 Lions in a coexistence landscape: Repurposing a traditional field technique to monitor an elusive carnivore Western, Guy Elliot, Nicholas B. Sompeta, Steiner L. Broekhuis, Femke Ngene, Shadrack Gopalaswamy, Arjun M. Ecol Evol Research Articles Throughout Africa, lions are thought to have experienced dramatic population decline and range contraction. The greatest declines are likely occurring in human‐dominated landscapes where reliably estimating lion populations is particularly challenging. By adapting a method that has thus far only been applied to animals that are habituated to vehicles, we estimate lion density in two community areas in Kenya's South Rift, located more than 100 km from the nearest protected area (PA). More specifically, we conducted an 89‐day survey using unstructured spatial sampling coupled with playbacks, a commonly used field technique, and estimated lion density using spatial capture‐recapture (SCR) models. Our estimated density of 5.9 lions over the age of 1 year per 100 km(2) compares favorably with many PAs and suggests that this is a key lion population that could be crucial for connectivity across the wider landscape. We discuss the possible mechanisms supporting this density and demonstrate how rigorous field methods combined with robust analyses can produce reliable population estimates within human‐dominated landscapes. John Wiley and Sons Inc. 2022-03-01 /pmc/articles/PMC8888262/ /pubmed/35261749 http://dx.doi.org/10.1002/ece3.8662 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 Western, Guy Elliot, Nicholas B. Sompeta, Steiner L. Broekhuis, Femke Ngene, Shadrack Gopalaswamy, Arjun M. Lions in a coexistence landscape: Repurposing a traditional field technique to monitor an elusive carnivore |
title | Lions in a coexistence landscape: Repurposing a traditional field technique to monitor an elusive carnivore |
title_full | Lions in a coexistence landscape: Repurposing a traditional field technique to monitor an elusive carnivore |
title_fullStr | Lions in a coexistence landscape: Repurposing a traditional field technique to monitor an elusive carnivore |
title_full_unstemmed | Lions in a coexistence landscape: Repurposing a traditional field technique to monitor an elusive carnivore |
title_short | Lions in a coexistence landscape: Repurposing a traditional field technique to monitor an elusive carnivore |
title_sort | lions in a coexistence landscape: repurposing a traditional field technique to monitor an elusive carnivore |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8888262/ https://www.ncbi.nlm.nih.gov/pubmed/35261749 http://dx.doi.org/10.1002/ece3.8662 |
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