Cattle or Sheep Reduce Fawning Habitat Available to Columbian White- tailed Deer in Western Oregon
作者： Winston P. Smith , Bruce E. Coblentz
DOI: 10.3955/046.084.0401
关键词:
摘要: Abstract We studied responses of Columbian white-tailed deer (Odocoileus virginianus leucurus) to cattle and sheep in western Oregon because viability concerns. used radio-telemetry, observations from horseback, searches with a trained dog determine fawning habitat, dam home ranges, habitat use by fawns. Dams (n = 12) shifted ( 366 m, P < 0.05) their center activity establishing disjunct areas prior fawning. Ten dams exhibited largest Euclidian movement during May—July; 7 females undertook extended 1445 m) forays spring. Three natal sites averaged 1926 m the dam's annual home-range. avoided (P livestock fawning; 3 fawns were encountered 243 h searching (1 fawn/91.4 h) stocking levels ≥2.5 animal month/ha (AUM), whereas 39 275 fawn/7.1 <2.5 AUM use. Natal 52) denser luxu...
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