DEMOGRAPHIC EFFECTS OF CANINE PARVOVIRUS ON A FREE-RANGING WOLF POPULATION OVER 30 YEARS

被引:56
作者
Mech, L. David
Goyal, Sagar M. [1 ]
Paul, William J. [2 ]
Newton, Wesley E.
机构
[1] US Geol Survey, No Prairie Wildlife Res Ctr, Jamestown, ND 58401 USA
[2] Univ Minnesota, Coll Vet Med, St Paul, MN 55108 USA
关键词
Canine parvovirus (CPV); demography; dispersal; population; wolf;
D O I
10.7589/0090-3558-44.4.824
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
We followed the course of canine parvovirus (CPV) antibody prevalence in a subpopulation of wolves (Canis lupus) in northeastern Minnesota from 1973, when antibodies were first detected, through 2004. Annual early pup survival was reduced by 70%, and wolf population change was related to CPV antibody prevalence. In the greater Minnesota population of 3,000 wolves, pup survival wits reduced by 40-60%. This reduction limited the Minnesota wolf population rate of increase to about 4% per year compared with increases of 16-58% in other populations. Because it is young wolves that disperse, reduced pup survival may have caused reduced dispersal and reduced recolonization of new range in Minnesota.
引用
收藏
页码:824 / 836
页数:13
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