Incorporating mechanism into conservation actions in an age of multiple and emerging threats: The case of boreal caribou
Abstract Conservation strategies for imperiled species are frequently based on identifying and addressing the probable causes of population decline, an approach known as the declining population paradigm. Causes, however, are frequently linked to demographic outcomes by multiple mechanisms, and fail...
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ftdoajarticles:oai:doaj.org/article:9015a0a25a314daa9129111884be4554 2023-08-20T04:09:24+02:00 Incorporating mechanism into conservation actions in an age of multiple and emerging threats: The case of boreal caribou Craig A. DeMars Chris J. Johnson Melanie Dickie Thomas J. Habib Michael Cody Amit Saxena Stan Boutin Robert Serrouya 2023-07-01T00:00:00Z https://doi.org/10.1002/ecs2.4627 https://doaj.org/article/9015a0a25a314daa9129111884be4554 EN eng Wiley https://doi.org/10.1002/ecs2.4627 https://doaj.org/toc/2150-8925 2150-8925 doi:10.1002/ecs2.4627 https://doaj.org/article/9015a0a25a314daa9129111884be4554 Ecosphere, Vol 14, Iss 7, Pp n/a-n/a (2023) boreal caribou climate change conservation declining population paradigm habitat restoration mechanism Ecology QH540-549.5 article 2023 ftdoajarticles https://doi.org/10.1002/ecs2.4627 2023-07-30T00:36:59Z Abstract Conservation strategies for imperiled species are frequently based on identifying and addressing the probable causes of population decline, an approach known as the declining population paradigm. Causes, however, are frequently linked to demographic outcomes by multiple mechanisms, and failing to target the primary mechanisms can reduce the effectiveness and efficiency of conservation actions. Increasingly, conservation strategies also need to consider emerging threats, such as climate change. Here, we use boreal caribou (Rangifer tarandus caribou), a threatened ecotype of woodland caribou, as a case study to illustrate how landscape disturbance and climate change can each exert negative demographic effects on caribou through multiple and complex mechanisms. We reviewed the extensive literature focused on woodland caribou to identify and assess the relative importance of each putative mechanism. While disturbance‐mediated apparent competition, the expansion of novel predators, and altered predator behavior appear to be primary mechanisms dictating past and current declines of caribou, climate change has increasing potential to exert strong direct and indirect effects now and in the future. Predicted climate effects may prevent some populations from regaining self‐sustaining status, despite local conservation actions. Our review revealed several knowledge gaps, notably a lack of clarity on the spatial extent of undisturbed habitat required for caribou populations to be stable. We used outcomes from our review to demonstrate how a mechanistic understanding of population decline can inform habitat‐based conservation strategies for caribou. For populations residing within highly disturbed ranges, habitat restoration is a key recommendation of current conservation strategies, yet the large spatial extent of disturbances will require prioritization of areas for restoration. Maximizing the conservation return‐on‐investment for caribou will require a mechanistically informed prioritization process that targets ... Article in Journal/Newspaper Rangifer tarandus Directory of Open Access Journals: DOAJ Articles Ecosphere 14 7 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
boreal caribou climate change conservation declining population paradigm habitat restoration mechanism Ecology QH540-549.5 |
spellingShingle |
boreal caribou climate change conservation declining population paradigm habitat restoration mechanism Ecology QH540-549.5 Craig A. DeMars Chris J. Johnson Melanie Dickie Thomas J. Habib Michael Cody Amit Saxena Stan Boutin Robert Serrouya Incorporating mechanism into conservation actions in an age of multiple and emerging threats: The case of boreal caribou |
topic_facet |
boreal caribou climate change conservation declining population paradigm habitat restoration mechanism Ecology QH540-549.5 |
description |
Abstract Conservation strategies for imperiled species are frequently based on identifying and addressing the probable causes of population decline, an approach known as the declining population paradigm. Causes, however, are frequently linked to demographic outcomes by multiple mechanisms, and failing to target the primary mechanisms can reduce the effectiveness and efficiency of conservation actions. Increasingly, conservation strategies also need to consider emerging threats, such as climate change. Here, we use boreal caribou (Rangifer tarandus caribou), a threatened ecotype of woodland caribou, as a case study to illustrate how landscape disturbance and climate change can each exert negative demographic effects on caribou through multiple and complex mechanisms. We reviewed the extensive literature focused on woodland caribou to identify and assess the relative importance of each putative mechanism. While disturbance‐mediated apparent competition, the expansion of novel predators, and altered predator behavior appear to be primary mechanisms dictating past and current declines of caribou, climate change has increasing potential to exert strong direct and indirect effects now and in the future. Predicted climate effects may prevent some populations from regaining self‐sustaining status, despite local conservation actions. Our review revealed several knowledge gaps, notably a lack of clarity on the spatial extent of undisturbed habitat required for caribou populations to be stable. We used outcomes from our review to demonstrate how a mechanistic understanding of population decline can inform habitat‐based conservation strategies for caribou. For populations residing within highly disturbed ranges, habitat restoration is a key recommendation of current conservation strategies, yet the large spatial extent of disturbances will require prioritization of areas for restoration. Maximizing the conservation return‐on‐investment for caribou will require a mechanistically informed prioritization process that targets ... |
format |
Article in Journal/Newspaper |
author |
Craig A. DeMars Chris J. Johnson Melanie Dickie Thomas J. Habib Michael Cody Amit Saxena Stan Boutin Robert Serrouya |
author_facet |
Craig A. DeMars Chris J. Johnson Melanie Dickie Thomas J. Habib Michael Cody Amit Saxena Stan Boutin Robert Serrouya |
author_sort |
Craig A. DeMars |
title |
Incorporating mechanism into conservation actions in an age of multiple and emerging threats: The case of boreal caribou |
title_short |
Incorporating mechanism into conservation actions in an age of multiple and emerging threats: The case of boreal caribou |
title_full |
Incorporating mechanism into conservation actions in an age of multiple and emerging threats: The case of boreal caribou |
title_fullStr |
Incorporating mechanism into conservation actions in an age of multiple and emerging threats: The case of boreal caribou |
title_full_unstemmed |
Incorporating mechanism into conservation actions in an age of multiple and emerging threats: The case of boreal caribou |
title_sort |
incorporating mechanism into conservation actions in an age of multiple and emerging threats: the case of boreal caribou |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1002/ecs2.4627 https://doaj.org/article/9015a0a25a314daa9129111884be4554 |
genre |
Rangifer tarandus |
genre_facet |
Rangifer tarandus |
op_source |
Ecosphere, Vol 14, Iss 7, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1002/ecs2.4627 https://doaj.org/toc/2150-8925 2150-8925 doi:10.1002/ecs2.4627 https://doaj.org/article/9015a0a25a314daa9129111884be4554 |
op_doi |
https://doi.org/10.1002/ecs2.4627 |
container_title |
Ecosphere |
container_volume |
14 |
container_issue |
7 |
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1774722338034548736 |