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Determination of sex ratios and their relationship to nest temperature of loggerhead sea turtle (Caretta caretta, L.) hatchlings produced along the southeastern Atlantic coast of the United States.

机译：确定在美国东南大西洋沿岸生产的logger海龟（Caretta caretta，L.）的性别比例及其与巢温的关系。

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The sex ratios of hatchling loggerheads (Caretta caretta) were determined to provide robust assessments of regional and seasonal contributions of males and females to the population. Hatchlings from nests along the Atlantic coastline were raised to 120 g, sexed laparoscopically and verified histologically. Sex ratios differed at the beach, subseason, and subpopulation levels. There was no difference in overall sex ratios between the two study years. Average nest temperature and incubation durations were not accurate sex ratio correlates. Temperatures that produced female biased or male biased sex ratios overlapped in ranges with those producing a single sex. I found that the Transitional Range of Temperatures for loggerhead sea turtles is approximately 26.5°C--32°C, and the best correlation between average temperature and sex ratio occurred at 50--65% of incubation. Further studies are needed to define the roles of other environmental factors or the responses of tissues in loggerhead sex determination.

机译：确定孵化的（Caretta caretta）的性别比，以提供对男性和女性对人口的区域和季节性贡献的有力评估。沿大西洋海岸线从巢中孵出的幼体提高到120克，在腹腔镜下进行性别鉴定并进行组织学验证。在海滩，亚季节和亚人口水平，性别比例有所不同。在两个学习年之间，总体性别比例没有差异。平均巢温和潜伏期不是精确的性别比相关。产生女性偏向或男性偏向的性别比的温度与产生单性别的温度在一定范围内重叠。我发现海龟的温度转变范围约为26.5°C--32°C，平均温度和性别比之间的最佳相关性发生在孵化的50--65％时。需要进一步的研究来确定其他环境因素或组织对的性别决定的作用。

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作者
Blair, Kimberly.;
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作者单位

Florida Atlantic University.;

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授予单位 Florida Atlantic University.;
学科 Biology Zoology.
学位 M.S.
年度 2005
页码 89 p.
总页数 89
原文格式 PDF
正文语种 eng
中图分类动物学;
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Determination of sex ratios and their relationship to nest temperature of loggerhead sea turtle (Caretta caretta, L.) hatchlings produced along the southeastern Atlantic coast of the United States.

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