Behavioural responses of lynx to declining snowshoe hare abundance

作者: Charles J. Krebs , Richard M. P. Ward

DOI: 10.14288/1.0096233

关键词: BiologyForagingEcologyAbundance (ecology)Snowshoe hareHome range

摘要: The behavioural responses of lynx (Lynx canadensis) to declines in snowshoe hare (Lepus americanus) abundance were examined the southwestern Yukon. Between April 1982 and June 1984, 11 radio tagged monitored near Kluane Game Sanctuary. Lynx home range size increased from 13.2 39.2 km2 concurrent with a decline 14.7 0.2 hares/ha. Below about 0.5 hares/ha, several abandoned their ranges became nomadic, although they remained within general study area. concentrated foraging efforts areas relatively high these after hares declined. Straight-line daily travel distance constant at 2.2−2.7 km/day above 1.0 hare/ha. straight-line distances rapidly, reaching 5.5 km/day Three seven radio-tagged dispersed 250 km or more area during period rapid decline. No similar lo...

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