Territorial defense by coyotes ( Canis latrans ) in Yellowstone National Park, Wyoming: who, how, where, when, and why
Territorial defense by coyotes ( Canis latrans ) in Yellowstone National Park, Wyoming: who, how, where, when, and why
复制标题
DOI:
10.1139/z01-054
复制
发表时间:
2001-06
影响因子:
1.4
通讯作者:
E. Gese
中科院分区:
文献类型:
--
作者:
E. Gese
Territorial defense and maintenance are an important facet of the social ecology of most carnivore species. From January 1991 to June 1993, we observed 54 coyotes (Canis latrans) for 2507 h in Yellowstone National Park, Wyoming, during which we observed 112 instances of territory defense. The identity of the coyotes involved in challenging and evicting intruding animals was known. Alpha coyotes were most likely to be involved in territorial evictions of intruding animals, followed by beta individuals; pups participated little in territory defense. Coyotes evicting intruders generally had a numerical advantage when challenging the intruders. Territory-defense rates were highest during and immediately after the breeding season and during the time of pup emergence from the den. All chases of intruders ended at the boundary of the resident coyote pack's territory. Physical contact between the intruding animal and resident pack members occurred with no intruders being killed or seriously injured. Physical cont...