Trends and spatial patterns in ungulate-vehicle collisions in Sweden
Trends and spatial patterns in ungulate-vehicle collisions in Sweden
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瑞典有蹄类动物与车辆碰撞的趋势和空间模式
DOI：
10.2981/wlb.2004.036
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发表时间：
2004
期刊：
影响因子：
1.9
通讯作者：
A. Seiler
中科院分区：
文献类型：
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作者：
A. Seiler
我研究了瑞典有蹄类动物与车辆碰撞 (UVC) 的趋势和空间变化，改变了空间分辨率，以检验 UVC 与动物密度和交通量成正比的假设。在单个狩猎区 (N = 311)、驼鹿管理区 (N = 95) 和县 (N = 22) 层面研究了空间模式，而在国家、县和区层面研究了 UVC 趋势，分别涵盖 30,16 和 12 年。 1970-1999年间，报告的与驼鹿Alces alces和狍鹿Capreolus capreolus发生碰撞的总数与年度猎物袋的变化和交通量的增加密切相关。 UVC 的大规模空间变化也显示出与收获和交通的强烈相关性。然而，随着时间的推移，碰撞次数与收获量的比率显着增加，这表明交通对有蹄类动物的管理越来越重要。随着分辨率的提高，其他环境因素，例如首选栖息地、道路密度以及可为野生动物提供通道的道路地下通道的存在，比有蹄类动物的密度和交通量变得更加重要。我的结果表明，动物数量、道路交通、缓解措施和碰撞次数之间的关系并不是线性的。为了未来对瑞典 UVC 的预测、评估和缓解，需要提高有关通道设计、围栏位置以及 UVC 在时间和空间上发生的知识。
I studied trends and the spatial variation in ungulate-vehicle collisions (UVC) in Sweden varying the spatial resolution in order to test the hypothesis that UVC are proportional to animal density and traffic volume. Spatial patterns were studied at the level of individual hunting areas (N = 311), moose management districts (N = 95), and counties (N = 22), whereas trends in UVC were studied at national, county and district level covering periods of 30,16 and 12 years, respectively. During 1970–1999 the overall number of reported collisions with moose Alces alces and roe deer Capreolus capreolus was closely correlated with changes in annual game bags and the increase in traffic volume. Large-scale spatial variations in UVC also showed a strong correlation with harvest and traffic. The ratio of collision numbers to harvest, however, increased significantly over time, suggesting a growing importance of traffic over ungulate management. With increased resolution, other environmental factors such as preferred habitat, road density and the presence of road underpasses that can provide passages for wildlife, gained significance over ungulate density and traffic volume. My results suggest that the relationship between animal abundance, road traffic, mitigation measures and collision numbers are not linear. For future prediction, evaluation and mitigation of UVC in Sweden, improved knowledge about passage design, fence location, and the occurrence of UVC in time and space is needed.