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首页> 外文期刊>Chelonian conservation and biology >Aggression, Combat, and Apparent Burrow Competition in Hatchling and Juvenile Gopher Tortoises (Gopherus polyphemus)
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Aggression, Combat, and Apparent Burrow Competition in Hatchling and Juvenile Gopher Tortoises (Gopherus polyphemus)

机译：幼雏和幼年地鼠乌龟（Gopherus polyphemus）的侵略，战斗和明显洞穴竞争

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摘要

Adult North American tortoises (Gopherus spp.) engage in aggressive interactions with conspecifics when competing for mates and burrows. However, aggressive interactions have not been widely reported in hatchling and juvenile tortoises. We describe aggressive interactions between wild hatchling and juvenile gopher tortoises (Gopherus polyphemus) based on video recordings collected at tortoise burrows. Immature tortoises usually inhabited burrows alone but occasionally shared them. Presence of multiple individuals inside burrows hindered tortoise movements in burrows. Hatchlings or juveniles exhibited overt aggression toward similar aged/sized conspecifics in at least 6 of 13 (46%) encounters, and cameras may have failed to detect aggression occurring inside burrows. Hatchlings and juveniles also exhibited aggressive responses to foreign objects that were similar in appearance to small tortoises. Aggressive behaviors resembled those of adults and included repeated ramming, pushing, biting, and flipping. Young tortoises may respond aggressively to conspecifics at burrows because the presence of additional individuals constrains thermoregulatory and antipredator movements within these important microhabitats. Social interactions appear to play a greater role in the ecology of hatchling and juvenile gopher tortoises than previously recognized.
机译：北美成年乌龟（Gopherus spp。）在争夺伴侣和洞穴时会与特定物种进行激进的互动。但是，在孵化和幼龟中尚未广泛报道侵略性相互作用。我们根据乌龟洞穴中收集的视频记录，描述了野生孵化和幼年地鼠龟（Gopherus polyphemus）之间的侵略性相互作用。未成熟的乌龟通常独自居住在洞穴中，但偶尔会与它们共存。洞穴内有多个人的存在阻碍了洞穴中的乌龟运动。在至少13次中，有6次（46％）的遭遇，小鱼或幼鱼对相似的年龄/大小的同种动物表现出明显的攻击性，并且相机可能无法检测到洞穴内部发生的攻击性。幼体和幼鱼还表现出对异物的攻击性反应，这些异物的外观类似于小乌龟。攻击行为类似于成年人，包括反复敲打，推挤，咬咬和翻转。年轻的乌龟可能会对洞穴中的物种做出积极的反应，因为其他个体的存在会限制这些重要的微生境中的温度调节和反捕食者的活动。社交互动在孵化和幼小地鼠龟的生态中似乎发挥了更大的作用。

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  • 来源
    《Chelonian conservation and biology》 |2016年第2期|231-237|共7页
  • 作者

    Radzio Thomas A.; Cox James A.; Spotila James R.; OConnor Michael P.;

  • 作者单位

    Drexel Univ, Dept Biodivers Earth & Environm Sci, 3245 Chestnut St, Philadelphia, PA 19104 USA;

    Tall Timbers Res Stn & Land Conservancy, 13093 Henry Beadel Dr, Tallahassee, FL 32312 USA;

    Drexel Univ, Dept Biodivers Earth & Environm Sci, 3245 Chestnut St, Philadelphia, PA 19104 USA;

    Drexel Univ, Dept Biodivers Earth & Environm Sci, 3245 Chestnut St, Philadelphia, PA 19104 USA|Drexel Univ, Dept Biol, 3245 Chestnut St, Philadelphia, PA 19104 USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    behavior; reptile; social interactions; time-lapse video; turtle;

    机译：行为;爬行动物;社交互动;延时录像;乌龟;

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