UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Examining the relationship between local extinction risk and position in range

Boakes, EH; Isaac, NJB; Fuller, RA; Mace, GM; McGowan, PJK; (2018) Examining the relationship between local extinction risk and position in range. Conservation Biology , 32 (1) pp. 229-239. 10.1111/cobi.12979. Green open access

[thumbnail of Boakes_et_al-2018-Conservation_Biology-OA_VoR.pdf]
Preview
Text
Boakes_et_al-2018-Conservation_Biology-OA_VoR.pdf - Published Version

Download (2MB) | Preview

Abstract

Over half of globally threatened animal species have experienced rapid geographic range loss. Identifying the parts of species' distributions most vulnerable to extinction would benefit conservation planning. However, previous studies give little consensus on whether ranges decline to the core or edge. Here we build on previous work by using empirical data to examine the position of recent local extinctions within species' geographic ranges, addressing range position as a continuum and exploring the influence of environmental factors. We aggregated point locality data for 125 species of galliform birds across the Palearctic and Indo-Malaya into equal area half degree grid cells and used a multi-species dynamic Bayesian occupancy model to estimate the rates of local extinctions. Our model provides a novel approach to identify loss of populations from within species ranges. We investigated the relationship between extinction rates and distance from range edge, examining whether patterns were consistent across biogeographic realm and different categories of land-use. In the Palearctic, local extinctions occurred closer to the range edge in both unconverted and human-dominated landscapes. In Indo-Malaya, no pattern was found for unconverted landscapes but in human dominated landscapes extinctions tended to occur closer to the core than the edge. Our results suggest that local and regional factors over-ride any general spatial patterns of recent local extinction within species' ranges and highlight the difficulty of predicting the parts of a species' distribution most vulnerable to threat. This article is protected by copyright. All rights reserved.

Type: Article
Title: Examining the relationship between local extinction risk and position in range
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1111/cobi.12979
Publisher version: http://doi.org/10.1111/cobi.12979
Language: English
Additional information: Copyright © 2017 The Authors. Conservation Biology published by Wiley Periodicals, Inc. on behalf of Society for Conservation Biology. This is an open access article under the terms of the Creative Commons Attribution License (CCBY 4.0), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords: Galliformes, biodiversity monitoring, dynamic occupancy model, geographic range, land use change, multi-species model, spatial ecology, species distribution
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/1565011
Downloads since deposit
67Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item