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首页> 外文期刊>Polar biology >Temporal aspects of polar bear (Ursus maritimus) occurrences at field camps in Wapusk National Park, Canada
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Temporal aspects of polar bear (Ursus maritimus) occurrences at field camps in Wapusk National Park, Canada

机译：加拿大沃普斯克国家公园野营地中北极熊（Ursus maritimus）发生的时间特征

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摘要

Interaction between polar bears (Ursus maritimus) and people is a growing concern for both bear conservation and human safety in a warming Arctic climate. Consequently, the importance of monitoring temporal trends in the proximity of polar bears to people has become critical in managing human- polar bear conflicts. Such concerns are acute in Wapusk National Park in Manitoba, Canada on the western Hudson Bay coast, where we deployed 18 camera traps at three remote field camps from 2010 to 2014 (similar to 22,100 camera days) to monitor the frequency and timing of bears' visits to those facilities. Following seasonal breakup of Hudson Bay's sea- ice polar bear occurrences at these camps increased throughout the summer and into fall (low in May-July and increasing sharply through August-November and then approaching zero in December when Hudson Bay freezes). We quantified age and sex class and estimated body condition of bears visiting the camps: adult males were most prevalent at Nester One camp close to where adult males congregate at Cape Churchill, whereas the two camps farther south were visited more frequently by females with dependent young, likely traveling to and from a known maternal denning area. Few sub-adults were observed. As expected, body condition scores declined throughout the on-shore season. Our method of monitoring polar bear occurrence on shore is robust, cost-effective, and non-invasive, and so may provide an economical complement to data gathered through more conventional techniques.
机译：北极熊（Ursus maritimus）与人之间的相互作用日益引起人们的关注，即北极气候变暖时熊的保护和人类安全。因此，在管理人与北极熊的冲突中，监测北极熊离人类的时间趋势的重要性变得至关重要。这种忧虑在哈德逊湾西部海岸的加拿大马尼托巴省的瓦普斯克国家公园十分严重，从2010年至2014年，我们在三个偏远野营中部署了18个相机陷阱（约22,100个相机日），以监测熊的发生频率和时间。参观这些设施。随着哈德逊湾海冰北极熊的季节性破坏，这些营地的数量在整个夏季到秋季都增加了（5月至7月低，到8月至11月急剧增加，然后在12月哈德逊湾冻结时接近零）。我们量化了进入营地的熊的年龄和性别等级，并估计了熊的身体状况：成年男性在Nester One营地最普遍，靠近丘吉尔角成年男性聚集的地方，而更南部的两个营地中有较年轻的成年女性更频繁地拜访，很可能往返于已知的孕妇住所区域。几乎没有观察到亚成人。正如预期的那样，整个陆上季节的身体状况得分均下降。我们的监测北极熊在岸上发生的方法是可靠，具有成本效益和非侵入性的，因此可以经济地补充通过常规技术收集的数据。

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  • 来源
    《Polar biology》 |2017年第8期|1661-1670|共10页
  • 作者

    Laforge Michel P.; Clark Douglas A.; Schmidt Aimee L.; Lankshear Jessica L.; Kowalchuk Sheldon; Brook Ryan K.;

  • 作者单位

    Univ Saskatchewan, Coll Agr & Bioresources, Dept Anim & Poultry Sci, Saskatoon, SK S7N 5A8, Canada|Mem Univ, Dept Biol, 232 Elizabeth Ave, St John, NF A1B 3X9, Canada;

    Univ Saskatchewan, Sch Environm & Sustainabil, Saskatoon, SK S7N 5C8, Canada;

    Univ Saskatchewan, Sch Environm & Sustainabil, Saskatoon, SK S7N 5C8, Canada;

    Univ Saskatchewan, Sch Environm & Sustainabil, Saskatoon, SK S7N 5C8, Canada;

    Pk Canada Agcy, Wapusk Natl Pk & Manitoba North Natl Hist Sites, Churchill, MB R0B 0E0, Canada;

    Univ Saskatchewan, Coll Agr & Bioresources, Dept Anim & Poultry Sci, Saskatoon, SK S7N 5A8, Canada|Univ Saskatchewan, Coll Agr & Bioresources, Indigenous Land Management Inst, Saskatoon, SK S7N 5A8, Canada;

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  • 正文语种 eng
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  • 关键词

    Climate change; Hudson Bay; Human-wildlife conflict; Non-invasive; Polar bears; Ursus maritimus;

    机译：气候变化;哈德逊湾;人类与野生动物的冲突;非侵入性;北极熊;海熊;

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