Sullivan, MJP orcid.org/0000-0002-5955-0483 and Franco, AMA (2018) Changes in habitat associations during range expansion: disentangling the effects of climate and residence time. Biological Invasions, 20 (5). pp. 1147-1159. ISSN 1387-3547
Abstract
The distributions of many species are not at equilibrium with their environment. This includes spreading non-native species and species undergoing range shifts in response to climate change. The habitat associations of these species may change during range expansion as less favourable climatic conditions at expanding range margins may constrain species to use only the most favourable habitats, violating the species distribution model assumption of stationarity. Alternatively, changes in habitat associations could result from density-dependent habitat selection; at range margins, population densities are initially low so species can exhibit density-independent selection of the most favourable habitats, while in the range core, where population densities are higher, species spread into less favourable habitat. We investigate if the habitat preferences of the non-native common waxbill Estrilda astrild changed as they spread in three directions (north, east and south-east) in the Iberian Peninsula. There are different degrees of climatic suitability and colonization speed across range expansion axes, allowing us to separate the effects of climate from residence time. In contrast to previous studies we find a stronger effect of residence time than climate in influencing the prevalence of common waxbills. As well as a strong additive effect of residence time, there were some changes in habitat associations, which were consistent with density-dependent habitat selection. The combination of broader habitat associations and higher prevalence in areas that have been colonised for longer means that species distribution models constructed early in the invasion process are likely to underestimate species’ potential distribution.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
Keywords: | Range expansion; Density-dependent habitat use; Species distribution modelling; Species–environment relationship; Common waxbill |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Geography (Leeds) > Ecology & Global Change (Leeds) |
Funding Information: | Funder Grant number EU - European Union 291585 (ERC 2011 ADG) |
Depositing User: | Symplectic Publications |
Date Deposited: | 09 Nov 2017 12:00 |
Last Modified: | 23 Jun 2023 22:38 |
Status: | Published |
Publisher: | Springer Verlag |
Identification Number: | 10.1007/s10530-017-1616-9 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:123600 |