High seasonal overlap in habitat suitability in a non-migratory High Arctic ungulate
Rattachement africain : no. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Understanding drivers of space use and habitat selection is essential for management and conservation, especially under rapid environmental change. Here, we develop summer and winter habitat suitability models for the endemic wild Svalbard reindeer (Rangifer tarandus platyrhynchus). The High Arctic Svalbard tundra is currently subject to the fastest temperature increases on Earth, and reindeer spatial responses to associated environmental change are strongly restricted due to landscape barriers (including 60% glacial coverage) and lack of sea ice as movement corridors. We used an extensive dataset of GPS-collared adult females (2009–2018; N = 268 individual-years) to model seasonal habitat selection as a function of remotely sensed environmental variables , and subsequently built habitat suitability models using an ensemble modelling framework. As expected, we found that reindeer preferred productive habitats, described by the normalized difference vegetation index (NDVI) and plant biomass (derived from a vegetation map), in both seasons. This was further supported by selection for bird cliff areas, rich in forage, improving habitat suitability especially in winter. Contrary to our expectations, the terrain variables had similar, impact on habitat suitability in the two seasons, except for use of higher elevations in winter, likely related to improved forage access due to less snow. Suitable habitat patches covered only a small proportion of the landscape and were highly clustered in both seasons. About 13.0% of the total land area was suitable in both seasons, while summer-only and winter-only areas contributed a marginal addition of around 4.7% and 1.5%, respectively. This suggests, that unlike many continental and migratory Rangifer populations, even small geographic areas may encompass suffiscient suitable habitat. These first archipelago-wide habitat suitability models provide seasonal baseline maps relevant for the management and conservation of Svalbard reindeer, particularly under rapid environmental alterations from climate change.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- High seasonal overlap in habitat suitability in a non-migratory High Arctic ungulate
- Date Crossref
- 01/09/2023
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Norwegian Polar Institute pays non établi dans la noticeStructure de recherche
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UiT The Arctic University of Norway pays non établi dans la noticeUniversité ou école supérieure
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Norwegian University of Science and Technology pays non établi dans la noticeUniversité ou école supérieure
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Norwegian Institute for Nature Research pays non établi dans la noticeStructure de recherche
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Norwegian University of Life Sciences pays non établi dans la noticeUniversité ou école supérieure
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NORCE Research AS pays non établi dans la noticeStructure de recherche
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NILU pays non établi dans la noticeOrganisation à but non lucratif
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UiT – Arctic University of Norway pays non établi dans la noticeUniversité ou école supérieure
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Norwegian University for Life Sciences pays non établi dans la noticeUniversité ou école supérieure
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NORCE Norwegian Research Centre AS pays non établi dans la noticeStructure de recherche
Norwegian Polar Institute, UiT The Arctic University of Norway et Norwegian University of Science and Technology, avec 7 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.