Apparent Rates of Increase for Two Feral Horse Herds
- 1 April 1982
- journal article
- research article
- Published by JSTOR in The Journal of Wildlife Management
- Vol. 46 (2) , 367-374
- https://doi.org/10.2307/3808648
Abstract
Rates of increase for 2 Oregon [USA] feral horse (E. caballus) herds were estimated from direct aerial counts to be about 20%/yr. These rates can be achieved only if survival rates are high and reproduction exceeds that normally expected from horses. A population dynamics model suggests adult survival to be the key parameter in determining rates of increase, and there is some direct evidence of high adult survival rates. Management implications are discussed.This publication has 2 references indexed in Scilit:
- Growth of a fur seal populationPhilosophical Transactions of the Royal Society of London. B, Biological Sciences, 1977
- Population Dynamics and Marine Mammal Management PoliciesJournal of the Fisheries Research Board of Canada, 1977