Winter Roosting Ecology of Silver-Haired Bats in an Arkansas Forest

摘要: Although summer roosting by Lasionycteris noctivagans (Silver- haired Bats) has been studied in various ecological regions of North America, no quantitative studies have examined winter roost selection. We radiotracked 11 bats to 31 day-roosts during forests the Ouachita Mountains, AR. quantifi ed structures and association between roosts forest stands. also effects temperature on use. Ninety percent were trees (5 species): 55% all under loose bark bole live overstory Pinus echinata (Shortleaf Pine), 3% a rock outcrop, 6% at ground level (under tree root or cavity base pine). Bats selected pine pine-hardwoods stands >50 years old, used 15-50 age less than their availability. Roost locations infl uenced solar radiation; most (90%) southern topographic aspects, roosted outcrop colder days ( 50 old south slopes would likely maintain roost- ing habitat for wintering Silver-haired Mountains.