influence du climat et de la prédation sur l'utilisation de l'habitat et la ...

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sem'ching fOl' juveniles and found 7.4 juveniles per 100 hours of search. However, we found
16 and 18 of the 21 juveniles within the first tl1ree and five searches performed around their
mother, respectively (Fig. 2.3a). We found 17 of the 21 juveniles within the first 30 minutes
of the search (Fig. 2.3b). We could ca1culate distance between juvenile and mother for 19
juveniles found. Distance was:::; 5 m for 11 juveniles, < Sm and:::; 15 m for sixjuveniles, and
< 15 m and :::; 30 m for the two remaining ones.
Marking
We marked 136 adults and 29 juveniles. Color and sign-coded ear tags were readable
with binoculars from 10-20 m depending on vegetation density. Juveniles never lost their
mini-tags. Sixt y-one of the 136 adults lost one or more aluminum tags between consecutive
captures (mean time interval between consecutive captures = 61 ± 3 days) but could be
retagged before they had lost ail four tags. Tags were lost more often tban mini-tags (79 tags
vs. 35 mini-tags, li = 21.48, p