Translator Disclaimer
1 July 2007 Effects of Winter-Feeding on Mule Deer in Northern Utah
Author Affiliations +
Abstract

During severe winters, mule deer (Odocoileus hemionus) concentrated on ranges in poor condition can experience high mortality. Winter-feeding programs have been implemented to mitigate this mortality. We studied effects on body condition, mortality, fawn production, and migration of mule deer following winter-feeding in the Cache-Wasatch Mountains of northern Utah, USA. Fed deer exhibited 12% higher live body-condition indices both years (main effect feed: F1,7.32 = 5.39, P = 0.052), lower mortality (33% vs. 55%: χ21 = 4.58, P < 0.05), and produced more fawns (19 fawns:18 fed F vs. 11 fawns:12 nonfed F; t27.2 = 2.20, P < 0.036) than nonfed deer. Fed deer migrated later in spring 2004 ( = 13 Apr) than nonfed deer ( = 24 Mar; t34 = 3.25, P = 0.003). Fed deer spent more time on winter range in 2003–2004 ( = 157 d) than nonfed deer ( = 121 d; t20 = 3.63, P = 0.002), and more time on winter range for both winters combined (fed deer = 321 d, nonfed deer = 257 d; t27 = 3.29, P = 0.003). Concomitantly, wildlife managers need to recognize that any possible benefits accrued to mule deer populations in terms of increased nutritional status as a result of winter-feeding programs may be mitigated by altered timing of migration and increased duration of use of seasonal ranges by fed deer.

CHRIS PETERSON and TERRY A. MESSMER "Effects of Winter-Feeding on Mule Deer in Northern Utah," Journal of Wildlife Management 71(5), 1440-1445, (1 July 2007). https://doi.org/10.2193/2006-202
Published: 1 July 2007
JOURNAL ARTICLE
6 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top