MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE

Rates of change in moose (Alces alces) abundance are typically measured from 2 or more population estimates. However, λ, the finite annual rate of change, can also be calculated from annual recruitment (R) and adult mortality (M) rates by the equation: λ = (1 - M)/(1 - R). Thus, rate of change can b...

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Main Authors: Hatter, Ian W., Bergerud, Wendy A.
Format: Article in Journal/Newspaper
Language:English
Published: Lakehead University 1991
Subjects:
Alces alces
Online Access:http://alcesjournal.org/index.php/alces/article/view/1095
id ftjalces:oai:ojs.pkp.sfu.ca:article/1095
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spelling ftjalces:oai:ojs.pkp.sfu.ca:article/1095 2023-05-15T13:12:59+02:00 MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE Hatter, Ian W. Bergerud, Wendy A. 1991-01-01 application/pdf http://alcesjournal.org/index.php/alces/article/view/1095 eng eng Lakehead University http://alcesjournal.org/index.php/alces/article/view/1095/1167 http://alcesjournal.org/index.php/alces/article/view/1095 Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 27 (1991): Alces Vol. 27 (1991); 65-73 2293-6629 0835-5851 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 1991 ftjalces 2022-02-12T19:35:55Z Rates of change in moose (Alces alces) abundance are typically measured from 2 or more population estimates. However, λ, the finite annual rate of change, can also be calculated from annual recruitment (R) and adult mortality (M) rates by the equation: λ = (1 - M)/(1 - R). Thus, rate of change can be assessed without population estimates; mortality rates can be estimated from R and λ; and λ measured from absolute density surveys can be cross-checked with estimates of R and M. Moose managers may also find the equation useful for interpolating moose numbers between periodic absolute density surveys. Several examples are provided to illustrate use of the equation. Article in Journal/Newspaper Alces alces Alces (A Journal Devoted to the Biology and Management of Moose)
institution Open Polar
collection Alces (A Journal Devoted to the Biology and Management of Moose)
op_collection_id ftjalces
language English
description Rates of change in moose (Alces alces) abundance are typically measured from 2 or more population estimates. However, λ, the finite annual rate of change, can also be calculated from annual recruitment (R) and adult mortality (M) rates by the equation: λ = (1 - M)/(1 - R). Thus, rate of change can be assessed without population estimates; mortality rates can be estimated from R and λ; and λ measured from absolute density surveys can be cross-checked with estimates of R and M. Moose managers may also find the equation useful for interpolating moose numbers between periodic absolute density surveys. Several examples are provided to illustrate use of the equation.
format Article in Journal/Newspaper
author Hatter, Ian W.
Bergerud, Wendy A.
spellingShingle Hatter, Ian W.
Bergerud, Wendy A.
MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE
author_facet Hatter, Ian W.
Bergerud, Wendy A.
author_sort Hatter, Ian W.
title MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE
title_short MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE
title_full MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE
title_fullStr MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE
title_full_unstemmed MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE
title_sort moose recruitment, adult mortality and rate of change
publisher Lakehead University
publishDate 1991
url http://alcesjournal.org/index.php/alces/article/view/1095
genre Alces alces
genre_facet Alces alces
op_source Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 27 (1991): Alces Vol. 27 (1991); 65-73
2293-6629
0835-5851
op_relation http://alcesjournal.org/index.php/alces/article/view/1095/1167
http://alcesjournal.org/index.php/alces/article/view/1095
_version_ 1766255267247292416

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