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Medientyp:
E-Artikel
Titel:
Forest Management and Female Black Bear Denning
Beteiligte:
White,, Thomas H.;
Bowman, Jacob L.;
Jacobson, Harry A.;
Leopold, Bruce D.;
Smith, Winston P.
Erschienen:
The Wildlife Society, 2001
Erschienen in:The Journal of Wildlife Management
Sprache:
Englisch
ISSN:
0022-541X;
1937-2817
Entstehung:
Anmerkungen:
Beschreibung:
<p>Most habitats available to black bear (Ursus americanus) in the Mississippi Alluvial Valley (MAV) consist of seasonally flooded commercial forests where lack of suitable dens may limit population growth. We studied interactions between forest management and flooding relative to female black bear denning. Denning behavior differed between commercial and noncommercial forests. Females used tree dens exclusively on noncommercial forests, whereas on commercial forests, most (83%) were ground dens. Variations in ground den elevation resulted in differing inundation probabilities, altering survival probabilities for neonates. On commercial forests, ground dens with similar inundation probabilities as tree dens allowed successful reproduction to occur. Management practices that enhance suitable cover in areas of minimal inundation probability may mitigate for lack of den trees in flood-prone landscapes.</p>