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Breitenmoser, U.; Kaczensky, P.; Doetterer, M.; Breitenmoser-Wrsten, C.; Capt, S.; Bernhart, F.; Liberek, M. | |
Spatial organization and recruitment of lynx (Lynx lynx) in a re-introduced population in the Swiss Jura Mountains | |
1993 Journal of Zoology (231): 449-464 | |
We monitored seven resident (three males and four females) and six dispersing subadult Eurasian lynx from 1988 to 1991 in a population that was re-introduced to the Swiss Jura Mountains in the early 1970s. Home-range areas of the neighbouring adults were 71 - 281 km2, and significant core areas 34 - 252 km2. Males occupied significantly larger areas than females. Home range overlap was 9 % for neighbouring males and 3 % for females. Core areas of males did touch, but those of females were clearly separated. Each male's home range covered those of one or two females. Population density was 0-94 lynx/100 km2 for resident animals. Pre-dispersal mortality was estimated to be 50 %. Juveniles dispersed from their mothers' home area at the age of 10 months. Of six monitored subadults, only one survived the first year of independence. Human-caused mortality (traffic accidents, illegal killing) was high. This was also the case among resident adults. This might be a threat to the long-term survival of the re-introduced population. |
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