...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine biology >Locomotion performance of green turtle hatchlings from the Heron Island Rookery, Great Barrier Reef
【24h】

Locomotion performance of green turtle hatchlings from the Heron Island Rookery, Great Barrier Reef

机译：大堡礁苍鹭岛群的绿海龟幼体的运动性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Locomotion performance plays a vital role in determining hatchling green turtle Chelonia mydas survival in the first few hours after emerging from their nests as hatchlings crawl and swim the gauntlet of predators before reaching the relative safety of the open ocean. Previous laboratory based constant incubation experiments found incubation temperature to influence the size and swimming performance of hatchling green turtles. Here we examine the morphology and crawling and swimming performance of hatchling green turtles as they emerge from nests on Heron Island rookery in the southern Great Barrier Reef to test the hypothesis that nest temperature in the field can influence these attributes. We found inter-nest differences in hatchling mass and dimensions, and that hatchling mass was not correlated with nest temperature. However, hatchlings from warmer nests had smaller carapace dimensions than hatchlings from cool nests suggesting that more yolk was converted to hatchling tissue during embryonic development in cool nests. There was considerable intra- and inter-nest variation in both crawling and swimming performance of hatchlings. Hatchlings from cool nests tended to be faster crawlers than hatchlings from warm nests, but thernthrust produced during swimming was not correlated with nest temperature. During the 4 h swimming trial, hatchlings swimming effort decreased significantly during the first 3 h but swimming effort remained relatively constant for the last 1 h. Individual hatchling crawling and swimming performances were not correlated with each other.
机译：运动性能在决定孵化绿海龟Chelonia mydas存活后的最初几个小时中起着至关重要的作用，因为孵化场的雏龟会爬行并在掠夺者的铁手套上游动，然后到达公海。以前基于实验室的恒定孵化实验发现，孵化温度会影响孵化绿海龟的大小和游泳性能。在这里，我们检查了孵化绿海龟从大堡礁南部苍鹭岛群中出现时的形态，爬行和游泳性能，以检验野外温度会影响这些属性的假说。我们发现孵化质量和尺寸之间存在巢间差异，并且孵化质量与巢温度无关。但是，较温暖的巢孵化的孵化壳要比较冷的巢孵化的小，这表明在较冷巢的胚胎发育过程中，有更多的卵黄转化为孵化组织。幼虫的爬行和游泳性能在巢内和巢内都有很大差异。凉巢中的孵化物比暖巢中的孵化物趋向于更快的爬行，但是游泳过程中产生的推力与巢温度无关。在4 h的游泳试验中，孵化后的幼体在3 h内的游泳力显着下降，但在最后1 h内，游泳力保持相对恒定。个体孵化的爬行和游泳成绩之间没有相关性。

著录项

  • 来源
    《Marine biology》 |2009年第7期|1399-1409|共11页
  • 作者

    Tahia Ischer; Katarina Ireland; David Terrington Booth;

  • 作者单位

    Physiological Ecology Group, School of Integrative Biology, The University of Queensland, Brisbane 4072, Australia;

    Physiological Ecology Group, School of Integrative Biology, The University of Queensland, Brisbane 4072, Australia;

    Physiological Ecology Group, School of Integrative Biology, The University of Queensland, Brisbane 4072, Australia;

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

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号