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首页> 外文期刊>Canadian Journal of Zoology >Clearcut logging restricts the movements of terrestrial Pacific giant salamanders (Dicamptodon tenebrosus Good)
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Clearcut logging restricts the movements of terrestrial Pacific giant salamanders (Dicamptodon tenebrosus Good)

机译：伐木采伐限制了陆地太平洋巨型sal（Dicamptodon tenebrosus Good）的活动

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摘要

Pacific giant salamanders (Dicamptodon tenebrosus Good) in the Chilliwack River valley of southwestern British Columbia are at the periphery of their range, and therefore of conservation concern. Although logging is a potential threat to the species, no studies have examined how clear-cutting affects its terrestrial stage. We used radiotelemetry to compare the movements of 35 terrestrial Pacific giant salamanders at sites with three different logging histories: forested, clearcut to the stream margin, and clearcut with riparian buffer strips. The results demonstrate that logging affected movements of the salamanders. Salamanders in clearcuts remained significantly closer to the stream, spent more time in subterranean refuges, and had smaller home ranges than those at forested sites. During a dry year, salamanders in clearcuts were significantly more dependent on precipitation for their movement than salamanders in forested habitats. Salamander movement behavior in riparian buffer strips was not significantly different from that at forested sites but was significantly different from that at clearcut sites. Riparian buffer strips appear to mitigate some of the negative effects of clearcuts on salamander movement.
机译：不列颠哥伦比亚省西南部奇利瓦克河谷中的太平洋巨型giant（Dicamptodon tenebrosus Good）处于其范围的外围，因此值得关注。尽管伐木是对该物种的潜在威胁，但没有研究检查过砍伐行为如何影响其陆地阶段。我们使用无线电遥测技术比较了35种陆地太平洋巨型sal在具有三种不同伐木历史的地点的移动情况：森林砍伐，沿河边缘的明晰边界和具有河岸缓冲带的明晰边界。结果表明，伐木影响the的运动。 clear的in仍然明显靠近溪流，在地下避难所中花费的时间更多，并且家园的范围比森林地区的小。在干旱的一年里，与森林生境中的sal相比，clear伐地的movement移动更加依赖降水。河岸缓冲带的移动行为与林区没有显着差异，但与无障碍区的显着不同。河岸缓冲带似乎减轻了cut伐对sal移动的负面影响。

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