RARE CARNIVORES AND HIGHWAYS - MOVING INTO THE 21ST CENTURY
作者： B Ruediger
DOI:
关键词: Endangered species 、 Gray wolf 、 Land management 、 Geography 、 Environmental planning 、 Environmental protection 、 Land-use planning 、 Habitat 、 Wildlife 、 Habitat fragmentation 、 Habitat destruction
摘要: A serious conservation issue facing rare carnivores (grizzly bear, gray wolf, wolverine, lynx, fisher) is the impacts created by highways. Carnivores are vulnerable to highways because of their large spatial requirements, which require frequent crossings busy roads. Several also have low reproductive productivity, can contribute extirpation. Highways habitat and ecosystem issues. affect creating fragmentation, increasing direct indirect mortality, loss, displacement avoidance, accelerating associated human developments. The on permanent severe. Rare face threats or eventual extirpation in lower 48 states southern Canada if highway issues not addressed solved. Presently, little no emphasis placed land management agencies, wildlife organizations agencies. Suggested priorities for reducing include: (1) Development implementation national policies requiring Federal Highway Administration agencies address species - particularly carnivores; (2) Better planning coordination standards; (3) Identification critical corridors; (4) Implementation crossing structures wildlife; (5) Emphasis research.
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