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From migration to nomadism: movement variability in a northern ungulate across its latitudinal range

Navinder J Singh, Luca Borger Orcid Logo, Holger Dettki, Nils Bunnefeld, Göran Ericsson

Ecological Applications, Volume: 22, Issue: 7, Pages: 2007 - 2020

Swansea University Author: Luca Borger Orcid Logo

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DOI (Published version): 10.1890/12-0245.1

Abstract

Understanding the causes and consequences of animal movements is of fundamental biological interest because any alteration in movement can have direct and indirect effects on ecosystem structure and function. It is also crucial for assisting spatial wildlife management under variable environmental c...

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Published in: Ecological Applications
Published: 2012
URI: https://cronfa.swan.ac.uk/Record/cronfa16626
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spelling 2021-07-16T14:55:16.2108365 v2 16626 2013-12-14 From migration to nomadism: movement variability in a northern ungulate across its latitudinal range 8416d0ffc3cccdad6e6d67a455e7c4a2 0000-0001-8763-5997 Luca Borger Luca Borger true false 2013-12-14 SBI Understanding the causes and consequences of animal movements is of fundamental biological interest because any alteration in movement can have direct and indirect effects on ecosystem structure and function. It is also crucial for assisting spatial wildlife management under variable environmental change scenarios. Recent research has highlighted the need of quantifying individual variability in movement behavior and how it is generated by interactions between individual requirements and environmental conditions, to understand the emergence of population-level patterns. Using a multi-annual movement data set of 213 individual moose (Alces alces) across a latitudinal gradient (from 56° to 67° N) that spans over 1100 km of varying environmental conditions, we analyze the differences in individual and population-level movements. We tested the effect of climate, risk, and human presence in the landscape on moose movements. The variation in these factors explained the existence of multiple movements (migration, nomadism, dispersal, sedentary) among individuals and seven populations. Population differences were primarily related to latitudinal variation in snow depth and road density. Individuals showed both fixed and flexible behaviors across years, and were less likely to migrate with age in interaction with snow and roads. For the predominant movement strategy, migration, the distance, timing, and duration at all latitudes varied between years. Males traveled longer distances and began migrating later in spring than females. Our study provides strong quantitative evidence for the dynamics of animal movements in response to changes in environmental conditions along with varying risk from human influence across the landscape. For moose, given its wide distributional range, changes in the distribution and migratory behavior are expected under future warming scenarios. Journal Article Ecological Applications 22 7 2007 2020 31 12 2012 2012-12-31 10.1890/12-0245.1 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2021-07-16T14:55:16.2108365 2013-12-14T01:33:20.3362622 College of Science Biosciences Navinder J Singh 1 Luca Borger 0000-0001-8763-5997 2 Holger Dettki 3 Nils Bunnefeld 4 Göran Ericsson 5
title From migration to nomadism: movement variability in a northern ungulate across its latitudinal range
spellingShingle From migration to nomadism: movement variability in a northern ungulate across its latitudinal range
Luca Borger
title_short From migration to nomadism: movement variability in a northern ungulate across its latitudinal range
title_full From migration to nomadism: movement variability in a northern ungulate across its latitudinal range
title_fullStr From migration to nomadism: movement variability in a northern ungulate across its latitudinal range
title_full_unstemmed From migration to nomadism: movement variability in a northern ungulate across its latitudinal range
title_sort From migration to nomadism: movement variability in a northern ungulate across its latitudinal range
author_id_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2
author_id_fullname_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2_***_Luca Borger
author Luca Borger
author2 Navinder J Singh
Luca Borger
Holger Dettki
Nils Bunnefeld
Göran Ericsson
format Journal article
container_title Ecological Applications
container_volume 22
container_issue 7
container_start_page 2007
publishDate 2012
institution Swansea University
doi_str_mv 10.1890/12-0245.1
college_str College of Science
hierarchytype
hierarchy_top_id collegeofscience
hierarchy_top_title College of Science
hierarchy_parent_id collegeofscience
hierarchy_parent_title College of Science
department_str Biosciences{{{_:::_}}}College of Science{{{_:::_}}}Biosciences
document_store_str 0
active_str 0
description Understanding the causes and consequences of animal movements is of fundamental biological interest because any alteration in movement can have direct and indirect effects on ecosystem structure and function. It is also crucial for assisting spatial wildlife management under variable environmental change scenarios. Recent research has highlighted the need of quantifying individual variability in movement behavior and how it is generated by interactions between individual requirements and environmental conditions, to understand the emergence of population-level patterns. Using a multi-annual movement data set of 213 individual moose (Alces alces) across a latitudinal gradient (from 56° to 67° N) that spans over 1100 km of varying environmental conditions, we analyze the differences in individual and population-level movements. We tested the effect of climate, risk, and human presence in the landscape on moose movements. The variation in these factors explained the existence of multiple movements (migration, nomadism, dispersal, sedentary) among individuals and seven populations. Population differences were primarily related to latitudinal variation in snow depth and road density. Individuals showed both fixed and flexible behaviors across years, and were less likely to migrate with age in interaction with snow and roads. For the predominant movement strategy, migration, the distance, timing, and duration at all latitudes varied between years. Males traveled longer distances and began migrating later in spring than females. Our study provides strong quantitative evidence for the dynamics of animal movements in response to changes in environmental conditions along with varying risk from human influence across the landscape. For moose, given its wide distributional range, changes in the distribution and migratory behavior are expected under future warming scenarios.
published_date 2012-12-31T03:33:49Z
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