«IZVESTIYA IRKUTSKOGO GOSUDARSTVENNOGO UNIVERSITETA». SERIYA «BIOLOGIYA. ECOLOGIYA»
«THE BULLETIN OF IRKUTSK STATE UNIVERSITY». SERIES «BIOLOGY. ECOLOGY»
ISSN 2073-3372 (Print)

List of issues > Series «Biology. Ecology». 2015. Vol. 14

Winter Browse Diet of Cervids in the Pinus koraensis-Broad-leaved Forests of the Southern Sikhote-Alin

Author(s)
A. Yu. Kon’kov
Abstract

Browse diets and dietary overlap were investigated among sympatric native cervids (roe deer, sika deer and Manchurian wapiti) in the Pinus koraensis-broad-leaved forests of South Sikhote-Alin (Russian Far East). Browse diets of deer were determined by backtracking them in winters 2003 through 2012, then counting freshly browsed twigs at feeding sites. The main dietary items were sixteen woody species comprised no less then 90 % of any cervid browse diet. The most heavily consumed woody species were Corylus mandshurica, Acer barbinerve, A. tegmentosum, Ligustrina amurensis and Eleutherococcus senticosus. Shaping of winter diets depended on snow depth and body size of cervids. Browse preference of given ungulates coincided in many respects. Average browse diet overlap between a sika deer and a roe deer population and a sika deer and a wapiti population calculated with Schoener’s index was about 54 %. Dietary overlap between roe deer and wapiti was lower (38 %). Considerable similarity in browse use between cervids indicates there is relatively high potential for competition in species pairs involving sika deer.

Keywords
Manchurian wapiti, sika deer, roe deer, Pinus koraensis-broad-leaved forests, browse diets, trophic competition, Russian Far East
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