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...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Lakehead University
2019
|
Subjects: | |
Online Access: | https://doaj.org/article/86667e7ecbdf430d93161c755214ab35 |
id |
ftdoajarticles:oai:doaj.org/article:86667e7ecbdf430d93161c755214ab35 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:86667e7ecbdf430d93161c755214ab35 2023-05-15T13:12:54+02:00 DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA A. Alan Arsenault Arthur R. Rodgers Kent Whaley 2019-01-01T00:00:00Z https://doaj.org/article/86667e7ecbdf430d93161c755214ab35 EN eng Lakehead University https://alcesjournal.org/index.php/alces/article/view/243/283 https://doaj.org/toc/0835-5851 0835-5851 https://doaj.org/article/86667e7ecbdf430d93161c755214ab35 Alces, Vol 55, Pp 43-60 (2019) alces alces boreal plain ecozone demography moose population management-by-objective Biology (General) QH301-705.5 Ecology QH540-549.5 article 2019 ftdoajarticles 2022-12-31T01:25:58Z 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 Directory of Open Access Journals: DOAJ Articles Canada |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
alces alces boreal plain ecozone demography moose population management-by-objective Biology (General) QH301-705.5 Ecology QH540-549.5 |
spellingShingle |
alces alces boreal plain ecozone demography moose population management-by-objective Biology (General) QH301-705.5 Ecology QH540-549.5 A. Alan Arsenault Arthur R. Rodgers Kent Whaley DEMOGRAPHIC STATUS OF MOOSE POPULATIONS IN THE BOREAL PLAIN ECOZONE OF CANADA |
topic_facet |
alces alces boreal plain ecozone demography moose population management-by-objective Biology (General) QH301-705.5 Ecology QH540-549.5 |
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 |
A. Alan Arsenault Arthur R. Rodgers Kent Whaley |
author_facet |
A. Alan Arsenault Arthur R. Rodgers Kent Whaley |
author_sort |
A. Alan Arsenault |
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 |
2019 |
url |
https://doaj.org/article/86667e7ecbdf430d93161c755214ab35 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Alces, Vol 55, Pp 43-60 (2019) |
op_relation |
https://alcesjournal.org/index.php/alces/article/view/243/283 https://doaj.org/toc/0835-5851 0835-5851 https://doaj.org/article/86667e7ecbdf430d93161c755214ab35 |
_version_ |
1766254772682227712 |