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首页> 外文期刊>Southeastern naturalist >Stable Isotope Analysis of Dietary Overlap between the Endangered Red Wolf and Sympatric Coyote in Northeastern North Carolina
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Stable Isotope Analysis of Dietary Overlap between the Endangered Red Wolf and Sympatric Coyote in Northeastern North Carolina

机译：北部卡罗莱纳州濒临灭绝的红狼与Sympatric Coyote之间膳食重叠的稳定同位素分析

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摘要

The only remaining wild Canis rufus (Red Wolf) are part of an experimental population inhabiting the Albemarle peninsula of northeastern North Carolina. This population was established in the late 1980s as part of the US Fish and Wildlife Service's Red Wolf Recovery Program. Recently, controversy has arisen over whether to maintain, expand, or end the recovery program. This controversy is complex, but one source of concern about the program is the perception among some local stakeholders that, compared to the smaller, sympatric C. latrans (Coyote), Red Wolves put greater pressure on game species, such as Odocoileus virginianus (White-tailed Deer). However, previous research comparing fecal remains indicated a broad dietary overlap between sympatric populations of the 2 species. In this study, we investigated the question of dietary overlap between Red Wolves and Coyotes using stable isotope analysis. Our results are consistent with those based on fecal analyses in showing that sympatric populations of Red Wolves and Coyotes have similar diets. This finding has important conservation and management implications for Red Wolves because it suggests that: (1) this species does not prey upon game species, such as White-tailed Deer, to any greater degree than sympatric Coyotes; and (2) whereas the loss of the only wild population of Red Wolves would result in a reduction of phylogenetic diversity in northeastern North Carolina, it may not result in a loss of functional diversity if Coyotes or Coyote-Red Wolf hybrids are able to play a similar ecological role to that of Red Wolves.
机译：唯一剩下的野生犬鲁弗斯（红狼）是居住在东北卡罗莱纳东北部的Albemarle半岛的实验人口的一部分。这群人口成立于20世纪80年代后期，作为美国鱼类和野生动物服务的红狼回收计划的一部分。最近，争议已经过度维护，扩大或结束恢复计划。这种争议是复杂的，但是关于该计划的一个关注的来源是一些当地利益相关者之间的看法，与较小的，对称的C. Latrans（Coyote）相比，红色狼群对游戏物种（如Odocoileus virginianus）（如白色） - 鹿）。然而，以前的研究比较粪便仍然表明了2种的Sympatric群体之间的广泛膳食重叠。在这项研究中，我们调查了使用稳定的同位素分析的红狼和土狼之间的膳食重叠问题。我们的结果与基于粪便分析的结果一致，表明红狼和土狼的分组人口有类似的饮食。这一发现具有对红色狼群的重要保护和管理影响，因为它表明：（1）该物种在比SympaTric Coyotes的比例更大程度上没有捕获游戏种类，例如白尾鹿; （2）而唯一的野生红狼群的丧失会导致北卡罗来纳东北部的系统发育多样性降低，如果土狼或土狼 - 红狼杂交机能够发挥作用，它可能不会导致功能多样性的丧失对红色狼的生态角色类似。

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