DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA
Broad scale analyses of winter population survey data collected between 1985 and 2015 were conducted to provide a synthesis of the current status and historical performance of 14 moose (Alces alces) populations residing in the Boreal Plain Ecozone of Saskatchewan and western Manitoba. Population tim...
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ftjalces:oai:ojs.pkp.sfu.ca:article/243 2023-05-15T13:13:17+02:00 DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA Arsenault, A. Alan Rodgers, Arthur R. Whaley, Kent 2020-03-20 application/pdf http://alcesjournal.org/index.php/alces/article/view/243 eng eng Lakehead University http://alcesjournal.org/index.php/alces/article/view/243/283 http://alcesjournal.org/index.php/alces/article/view/243 Copyright (c) 2020 Alces: A Journal Devoted to the Biology and Management of Moose Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 55 (2019); 43-60 2293-6629 0835-5851 Population Demography Boreal Plain Ecozone Management info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2020 ftjalces 2022-02-12T19:35:43Z Broad scale analyses of winter population survey data collected between 1985 and 2015 were conducted to provide a synthesis of the current status and historical performance of 14 moose (Alces alces) populations residing in the Boreal Plain Ecozone of Saskatchewan and western Manitoba. Population time series models indicated a broad scale decline averaging 30% in moose populations across the Boreal Plain Ecozone since 2000 relative to the long-term (1985 to 2015) cumulative mean population size. Demographic patterns and rates of population change were variable among and within populations across years. We found an inverse relationship between adult sex ratio (bull:cow) and population density (R² = 0.48, P < 0.001), which suggests negative population growth (λ < 1.0) when the adult sex ratio falls below a density-dependent threshold for population growth. Winter calf recruitment (calves/cow) was positively correlated (R² = 0.12, P = 0.027) with adult sex ratio. Stable or increasing populations (λ ≥ 1.0) tended to have lower adult sex ratios relative to winter calf recruitment ratios than declining populations. Population state and vital rate relationships are useful to assess population performance and guide science-based moose management strategies in a Management-by-Objective decision-analytic framework. Article in Journal/Newspaper Alces alces Alces (A Journal Devoted to the Biology and Management of Moose) Canada |
institution |
Open Polar |
collection |
Alces (A Journal Devoted to the Biology and Management of Moose) |
op_collection_id |
ftjalces |
language |
English |
topic |
Population Demography Boreal Plain Ecozone Management |
spellingShingle |
Population Demography Boreal Plain Ecozone Management Arsenault, A. Alan Rodgers, Arthur R. Whaley, Kent DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA |
topic_facet |
Population Demography Boreal Plain Ecozone Management |
description |
Broad scale analyses of winter population survey data collected between 1985 and 2015 were conducted to provide a synthesis of the current status and historical performance of 14 moose (Alces alces) populations residing in the Boreal Plain Ecozone of Saskatchewan and western Manitoba. Population time series models indicated a broad scale decline averaging 30% in moose populations across the Boreal Plain Ecozone since 2000 relative to the long-term (1985 to 2015) cumulative mean population size. Demographic patterns and rates of population change were variable among and within populations across years. We found an inverse relationship between adult sex ratio (bull:cow) and population density (R² = 0.48, P < 0.001), which suggests negative population growth (λ < 1.0) when the adult sex ratio falls below a density-dependent threshold for population growth. Winter calf recruitment (calves/cow) was positively correlated (R² = 0.12, P = 0.027) with adult sex ratio. Stable or increasing populations (λ ≥ 1.0) tended to have lower adult sex ratios relative to winter calf recruitment ratios than declining populations. Population state and vital rate relationships are useful to assess population performance and guide science-based moose management strategies in a Management-by-Objective decision-analytic framework. |
format |
Article in Journal/Newspaper |
author |
Arsenault, A. Alan Rodgers, Arthur R. Whaley, Kent |
author_facet |
Arsenault, A. Alan Rodgers, Arthur R. Whaley, Kent |
author_sort |
Arsenault, A. Alan |
title |
DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA |
title_short |
DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA |
title_full |
DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA |
title_fullStr |
DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA |
title_full_unstemmed |
DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA |
title_sort |
demographic status of moose populations in the boreal plain ecozone of canada |
publisher |
Lakehead University |
publishDate |
2020 |
url |
http://alcesjournal.org/index.php/alces/article/view/243 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 55 (2019); 43-60 2293-6629 0835-5851 |
op_relation |
http://alcesjournal.org/index.php/alces/article/view/243/283 http://alcesjournal.org/index.php/alces/article/view/243 |
op_rights |
Copyright (c) 2020 Alces: A Journal Devoted to the Biology and Management of Moose |
_version_ |
1766257412782686208 |