TY - JOUR
AU - Hatter, Ian W.
AU - Bergerud, Wendy A.
PY - 1991/01/01
Y2 - 2023/02/01
TI - MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE
JF - Alces: A Journal Devoted to the Biology and Management of Moose
JA - Alces
VL - 27
IS -
SE - Articles
DO -
UR - https://www.alcesjournal.org/index.php/alces/article/view/1095
SP - 65-73
AB - <p>Rates of change in moose (<em>Alces alces</em>) 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 (<em>R</em>) and adult mortality (<em>M</em>) rates by the equation: λ = (<em>1 - M)</em>/<em>(1 - R</em>). Thus, rate of change can be assessed without population estimates; mortality rates can be estimated from <em>R</em> and λ; and λ measured from absolute density surveys can be cross-checked with estimates of <em>R</em> and <em>M</em>. 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.</p>
ER -