Importance of spatio–temporal connectivity to maintain species experiencing range shifts

Type Article
Date 2020-04
Language English
Author(s) Huang Jun‐long1, 2, Andrello Marco3, Camargo Martensen Alexandre4, Saura Santiago5, Liu Dian‐feng1, He Jian‐hua1, Fortin Marie‐josée2
Affiliation(s) 1 : School of Resources and Environment Sciences, Wuhan Univ. CN‐430079 Wuhan ,PR China
2 : Dept of Ecology and Evolutionary Biology, Univ. of Toronto Toronto ON, Canada
3 : MARBEC, Univ. de Montpellier, CNRS, IFREMER, IRD Sète, France
4 : Centro de Ciências da Natureza, Univ. Federal de São Carlos ,Brazil
5 : Depto de Sistemas y Recursos Naturales, ETSI Montes, Forestal y del Medio Natural, Univ. Politécnica de Madrid, Madrid, Spain
Source Ecography (0906-7590) (Wiley), 2020-04 , Vol. 43 , N. 4 , P. 591-603
DOI 10.1111/ecog.04716
WOS© Times Cited 5
Keyword(s) climate change, dynamic network model, landscape connectivity, Ontario, species distribution
Abstract

limate change can affect the habitat resources available to species by changing habitat quantity, suitability and spatial configuration, which largely determine population persistence in the landscape. In this context, dispersal is a central process for species to track their niche. Assessments of the amount of reachable habitat (ARH) using static snap‐shots do not account, however, for the temporal overlap of habitat patches that may enhance stepping‐stone effects. Here, we quantified the impacts of climate change on the ARH using a spatio–temporal connectivity model. We first explored the importance of spatio–temporal connectivity relative to purely spatial connectivity in a changing climate by generating virtual species distributions and analyzed the relative effects of changes in habitat quantity, suitability and configuration. Then, we studied the importance of spatio–temporal connectivity in three vertebrate species with divergent responses to climate change in North America (grey wolf, Canadian lynx and white‐tailed deer). We found that the spatio–temporal connectivity could enhance the stepping‐stone effect for species predicted to experience range contractions, and the relative importance of the spatio–temporal connectivity increased with the reduction in habitat quantity and suitability. Conversely, for species that are likely to expand their ranges, spatio–temporal connectivity had no additional contribution to improve the ARH. We also found that changes in habitat amount (quantity and suitability) were more influential than changes in habitat configuration in determining the relative importance of spatio–temporal connectivity. We conclude that spatio–temporal connectivity may provide less biased and more realistic estimates of habitat connectivity than purely spatial connectivity.

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How to cite 

Huang Jun‐long, Andrello Marco, Camargo Martensen Alexandre, Saura Santiago, Liu Dian‐feng, He Jian‐hua, Fortin Marie‐josée (2020). Importance of spatio–temporal connectivity to maintain species experiencing range shifts. Ecography, 43(4), 591-603. Publisher's official version : https://doi.org/10.1111/ecog.04716 , Open Access version : https://archimer.ifremer.fr/doc/00603/71465/