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Interspecific Relationships between the Amur Tiger (Panthera tigris altaica) and Brown ( Ursus arctos) and Asiatic Black (Ursus thibetanus) Bears

机译:东北虎(Panthera tigris altaica)和棕熊(Ursus arctos)与亚洲黑熊(Ursus thibetanus)之间的种间关系

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摘要

During the years 1992-2013, we studied the relationship between Amur tigers and brown and Asiatic black bears in the Sikhote-Alin Nature Reserve and surrounding areas in the southern part of the Russian Far East. To determine the importance of bears in the diet of tigers, 763 kills were located and identified, and 430 tiger scat samples were collected and analyzed. To detect kills and scat samples, we used radio telemetry and satellite tracking, as well as snow-tracking. Relying on evidence revealed by tracks, as well as radio telemetry, we determined whether bears exploited tiger kills as a food resource and how the two may have interacted at kill sites. Thirty-two Asiatic black bear and 12 brown bear den sites were measured to define properties that might assist in protection from the threat of a tiger attack. We identified 641 instances of marking on trees by both tigers and bears, an indication of the complexity of their relationship. Bears are an important part of the tigers' diet, representing 2.2% of all kills found. Bear remains were found in 8.4% of examined tiger scat. Bears exploited tiger kills after a tiger had left, by usurping a kill, or by sharing a kill at alternate times. The occurrence of den properties that provided some protection from tigers was dependent on the den type and location. Evidence of both tiger and bear marking was detected at 50.1% of marked trees. A review of the literature on the relationship of tigers and bears is provided.
机译:在1992年至2013年间,我们研究了锡霍特-阿林自然保护区和俄罗斯远东南部周边地区的东北虎与棕熊和亚洲黑熊之间的关系。为了确定熊在老虎饮食中的重要性,找到并确定了763起杀人事件,并收集和分析了430个老虎粪便样本。为了检测杀伤力和粪便样本,我们使用了无线电遥测,卫星跟踪以及雪地跟踪。依靠轨道和无线电遥测所揭示的证据,我们确定了熊是否利用老虎杀人作为食物资源,以及这两种熊在杀人地点如何相互作用。测量了32个亚洲黑熊和12个棕熊巢穴的位置,以定义有助于保护免受老虎攻击威胁的属性。我们确定了641例老虎和熊在树上标记的实例,这表明了它们之间关系的复杂性。熊是老虎饮食的重要组成部分,占发现的所有死亡的2.2%。在被检查的虎粪中8.4%发现了熊遗骸。熊离开老虎后,通过篡夺一次杀戮或在其他时间共享一次杀戮来利用老虎的杀戮。为老虎提供一定保护的窝点特性的出现取决于窝点的类型和位置。在标记的树木的50.1%处发现了老虎和熊的标记。提供了有关老虎和熊的关系的文献综述。

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  • 来源
    《Biology Bulletin》 |2018年第8期|853-864|共12页
  • 作者单位

    Russian Acad Sci Far East Branch Pacific Geog Inst Vladivostok 690041 Russia|Far Eastern Fed Univ Vladivostok 690091 Russia;

    Far Eastern Fed Univ Vladivostok 690091 Russia|Wildlife Conservat Soc Bronx NY 10460 USA;

    Panthera Fdn New York NY 10018 USA;

    Russian Acad Sci Far East Branch Inst Biol & Soil Sci Vladivostok 690022 Russia|World Wide Fund Nat Amur Branch Vladivostok 690003 Russia;

    Russian Acad Sci Far East Branch Pacific Geog Inst Vladivostok 690041 Russia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Amur tiger; brown bear; Asiatic black bear; diet; scavenger; predation;

    机译:东北虎;棕熊亚洲黑熊;饮食;清道夫;掠夺;

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