thumbnail

Late winter survival of female mallards in Arkansas

Journal of Wildlife Management

By:
, , and

Links

Abstract

Determining factors that limit winter survival of waterfowl is necessary to develop effective management plans. We radiomarked immature and adult female mallards (Anas platyrhynchos) after the 1988 and 1989 hunting seasons in eastcentral Arkansas to test whether natural mortality sources and habitat conditions during late winter limit seasonal survival. We used data from 92 females to calculate survival estimates. We observed no mortalities during 2,510 exposure days, despite differences in habitat conditions between years. We used the binomial distribution to calculate daily and 30-day survival estimates plus 95% confidence intervals of 0.9988 ltoreq 0.9997 ltoreq 1.00 and 0.9648 ltoreq 0.9925 ltoreq 1.00, respectively. Our data indirectly support the hypothesis that hunting mortality and habitat conditions during the hunting season are the major determinants of winter survival for female mallards in Arkansas.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Late winter survival of female mallards in Arkansas
Series title:
Journal of Wildlife Management
Volume
58
Issue:
1
Year Published:
1994
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
94-99
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Wildlife Management
First page:
94
Last page:
99