You are not currently logged in.
Access JSTOR through your library or other institution:
Dynamics of a Colonizing Elk Population
Scott M. McCorquodale, L. Lee Eberhardt and Lester E. Eberhardt
The Journal of Wildlife Management
Vol. 52, No. 2 (Apr., 1988), pp. 309-313
Stable URL: http://www.jstor.org/stable/3801240
Page Count: 5
You can always find the topics here!Topics: Elks, Population estimates, Yearlings, Ales, Female animals, Population growth rate, Herds, Population dynamics, Population growth, Calves
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Preview not available
The estimated rate of increase (r) for a naturally colonizing elk (Cervus elaphus nelsoni) population in the shrub-steppe region of southcentral Washington was 0.20 for 1975-86 (2-13 yr post-colonization). From 1982 to 1986, r was 0.30. Survival of all age classes was high. During 1982-86 0.76 calves/female were weaned if 2-year-olds were included, or 0.91 calves/female if 2-year-olds were excluded. Age-specific pregnancy and survival rates were combined in a model to evaluate the impact of various parameter values on rates of increase. Observations and simulation results suggest that the high rate of increase observed was due to high first-year survival and probably substantial reproductive output from 2-year-old females.
The Journal of Wildlife Management © 1988 Wiley