期刊
BIOLOGICAL CONSERVATION
卷 180, 期 -, 页码 262-269出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biocon.2014.10.017
关键词
Biological invasion; Colonization; Persistence; Predator control; Prey; Vulpes vulpes
资金
- Victorian Department of Environment and Primary Industries (DEPI)
Management agencies commonly control non-native mammalian predators to protect native prey populations, but there are few robust examples of such control enhancing native prey populations. We conducted a 9-year landscape-scale management experiment to evaluate the benefits of controlling the invasive red fox (Vulpes vulpes) to low densities for three native ground-dwelling mammalian prey species -common brushtail possum (Trichosurus vulpecula), long-nosed potoroo (Potorous tridactylus) and southern brown bandicoot (Isoodon obesulus)-in south-east Australian forests. We hypothesized that sustained and spatially extensive fox control would reduce fox abundance and increase occupancy, colonization and persistence rates for all three prey species in three treatment areas relative to three non-treatment areas. There was a substantial decline in bait take by foxes in treatment areas from 2005 to 2013, and fox abundances were much lower in treatment than non-treatment areas throughout the experiment. Occupancy rates of all three native prey species increased in treatment areas relative to non-treatment areas, although the magnitude of the increase varied with species, treatment area, and time. Colonization and persistence rates were not always positive for all species and all treatment areas. Our experiment demonstrates that foxes can be reduced to, and maintained at, low abundances and that this has a generally positive effect on the occupancy by small native mammalian prey species. Crown Copyright (C) 2014 Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据