Resource separation analysis with moose indicates threats to caribou in human altered landscapes
Species recovery is often impeded by inadequate knowledge on mechanisms of community interactions that cause and exacerbate species endangerment. Caribou and wild reindeer Rangifer tarandus are declining in many regions of their circumpolar range likely because of human‐induced landscape changes. In...
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crwiley:10.1111/j.1600-0587.2012.07733.x 2023-12-03T10:08:59+01:00 Resource separation analysis with moose indicates threats to caribou in human altered landscapes Peters, Wibke Hebblewhite, Mark DeCesare, Nicholas Cagnacci, Francesca Musiani, Marco 2012 http://dx.doi.org/10.1111/j.1600-0587.2012.07733.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.2012.07733.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.2012.07733.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 36, issue 4, page 487-498 ISSN 0906-7590 1600-0587 Ecology, Evolution, Behavior and Systematics journal-article 2012 crwiley https://doi.org/10.1111/j.1600-0587.2012.07733.x 2023-11-09T14:14:34Z Species recovery is often impeded by inadequate knowledge on mechanisms of community interactions that cause and exacerbate species endangerment. Caribou and wild reindeer Rangifer tarandus are declining in many regions of their circumpolar range likely because of human‐induced landscape changes. In general, their niche specialization enables Rangifer to survive in nutrient‐poor habitats spatially separated from other ungulates and their shared predators. Research has indicated that shifts in primary prey distribution following human landscape alteration may result in spatial overlap with Rangifer . We studied overlap relationships of woodland caribou R. t. caribou and moose Alces alces , quantified by their differential use of environmental resources, and evaluated the role of human landscape alteration in spatial separation in south‐western Canada. Anthropogenic conversion of old‐growth forests to early seral stands is hypothesized to decrease the spatial separation between caribou and moose, the dominant prey for wolves Canis lupus , contributing to increased caribou mortality. Redundancy analysis (RDA) was first used to examine coarse scale resource separation across our study area. Second, at a finer spatial scale, we used logistic regression to compare resource‐ and spatial separation of sympatric pairs of 17 moose and 17 caribou. Finally, we tested if the frequency of predator‐caused caribou mortalities was higher in regions with higher moose resource use. Although environmental resource separation was strong at the coarser scale, we observed substantial spatial overlap (>50%) at the finer scale. In summer we reported a significant positive relationship between spatial overlap of moose and caribou and the degree of human landscape alteration. Most importantly, locations of caribou mortalities corresponded with areas of high resource use by moose in summer. Thus, consistent with the spatial separation hypothesis, our research suggests that early successional forest stages may decrease spatial ... Article in Journal/Newspaper Alces alces Canis lupus Rangifer tarandus Wiley Online Library (via Crossref) Canada Ecography 36 4 487 498 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Peters, Wibke Hebblewhite, Mark DeCesare, Nicholas Cagnacci, Francesca Musiani, Marco Resource separation analysis with moose indicates threats to caribou in human altered landscapes |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Species recovery is often impeded by inadequate knowledge on mechanisms of community interactions that cause and exacerbate species endangerment. Caribou and wild reindeer Rangifer tarandus are declining in many regions of their circumpolar range likely because of human‐induced landscape changes. In general, their niche specialization enables Rangifer to survive in nutrient‐poor habitats spatially separated from other ungulates and their shared predators. Research has indicated that shifts in primary prey distribution following human landscape alteration may result in spatial overlap with Rangifer . We studied overlap relationships of woodland caribou R. t. caribou and moose Alces alces , quantified by their differential use of environmental resources, and evaluated the role of human landscape alteration in spatial separation in south‐western Canada. Anthropogenic conversion of old‐growth forests to early seral stands is hypothesized to decrease the spatial separation between caribou and moose, the dominant prey for wolves Canis lupus , contributing to increased caribou mortality. Redundancy analysis (RDA) was first used to examine coarse scale resource separation across our study area. Second, at a finer spatial scale, we used logistic regression to compare resource‐ and spatial separation of sympatric pairs of 17 moose and 17 caribou. Finally, we tested if the frequency of predator‐caused caribou mortalities was higher in regions with higher moose resource use. Although environmental resource separation was strong at the coarser scale, we observed substantial spatial overlap (>50%) at the finer scale. In summer we reported a significant positive relationship between spatial overlap of moose and caribou and the degree of human landscape alteration. Most importantly, locations of caribou mortalities corresponded with areas of high resource use by moose in summer. Thus, consistent with the spatial separation hypothesis, our research suggests that early successional forest stages may decrease spatial ... |
format |
Article in Journal/Newspaper |
author |
Peters, Wibke Hebblewhite, Mark DeCesare, Nicholas Cagnacci, Francesca Musiani, Marco |
author_facet |
Peters, Wibke Hebblewhite, Mark DeCesare, Nicholas Cagnacci, Francesca Musiani, Marco |
author_sort |
Peters, Wibke |
title |
Resource separation analysis with moose indicates threats to caribou in human altered landscapes |
title_short |
Resource separation analysis with moose indicates threats to caribou in human altered landscapes |
title_full |
Resource separation analysis with moose indicates threats to caribou in human altered landscapes |
title_fullStr |
Resource separation analysis with moose indicates threats to caribou in human altered landscapes |
title_full_unstemmed |
Resource separation analysis with moose indicates threats to caribou in human altered landscapes |
title_sort |
resource separation analysis with moose indicates threats to caribou in human altered landscapes |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1600-0587.2012.07733.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.2012.07733.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.2012.07733.x |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Alces alces Canis lupus Rangifer tarandus |
genre_facet |
Alces alces Canis lupus Rangifer tarandus |
op_source |
Ecography volume 36, issue 4, page 487-498 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0587.2012.07733.x |
container_title |
Ecography |
container_volume |
36 |
container_issue |
4 |
container_start_page |
487 |
op_container_end_page |
498 |
_version_ |
1784261195842191360 |