Large-scale noninvasive genetic monitoring of wolverines using scats reveals density dependent adult survival

被引：48

作者：

Broseth, Henrik ^{[1
]}

Flagstad, Oystein ^{[1
]}

Wardig, Cecilia ^{[2
]}

Johansson, Malin ^{[2
]}

Ellegren, Hans ^{[2
]}

机构：

[1] Norwegian Inst Nat Res, NO-7485 Trondheim, Norway

[2] Uppsala Univ, Dept Evolutionary Biol, SE-75236 Uppsala, Sweden

来源：

BIOLOGICAL CONSERVATION | 2010年 / 143卷 / 01期

关键词：

Capture-mark-recapture; Demographic parameters; Gulo gulo; Harvest rate; Large carnivore; Vital rates; ESTIMATING ANIMAL ABUNDANCE; BEAR URSUS-ARCTOS; GULO-GULO; POPULATION-DYNAMICS; LARGE CARNIVORES; MANAGEMENT; CONSERVATION; MORTALITY; PREDATION; SIZE;

D O I：

10.1016/j.biocon.2009.09.012

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Noninvasive genetic monitoring has the potential to estimate vital rates essential for conservation and management of many species. In a long-term genetic capture-mark-recapture study using scats we evaluated temporal variation in adult survival in a wolverine (Gulo gulo) population in southern Norway. In contrast to most previous studies of large mammals we found evidence for negative density dependence in adult survival in this large carnivore. Both sexes showed the same pattern of density dependence, with higher annual survival rates in adult females than males. In addition, we also found an additive mortality effect of harvesting in the population, resulting in the lowest adult survival rates at a combination of high population density and high harvest rate. The additive effects of density and harvest on adult survival of wolverines have relevance to the conservation and management of solitary carnivores with strong intrasexual territoriality, especially for species where combats among conspecifics can cause serious injury or even mortality. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：113 / 120

页数：8

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