MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE

Authors

  • Ian W. Hatter
  • Wendy A. Bergerud

Abstract

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.

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Published

1991-01-01

How to Cite

Hatter, I. W., & Bergerud, W. A. (1991). MOOSE RECRUITMENT, ADULT MORTALITY AND RATE OF CHANGE. Alces: A Journal Devoted to the Biology and Management of Moose, 27, 65–73. Retrieved from https://www.alcesjournal.org/index.php/alces/article/view/1095

Issue

Vol. 27 (1991): Alces Vol. 27 (1991)

Section

Articles

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