...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine ecology >Is a small sea turtles rookery doomed to local extinction? Decreasing nesting trends at the Paria Gulf, Venezuela
【24h】

Is a small sea turtles rookery doomed to local extinction? Decreasing nesting trends at the Paria Gulf, Venezuela

机译：小海龟群注定要灭绝吗？

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

Small rookeries are rarely evaluated for marine turtles worldwide. Two species of sea turtles (Hawksbill, Eretmochelys imbricata; Leatherback, Dermochelys coriacea) nest on five main beaches of the northeast coast of the Paria Gulf in Venezuela. Population trends using generalized linear models at this rookery were assessed and compared with other small rookeries. Both species showed significant negative nesting trends: Nesting by critically endangered hawksbills decreased over nine seasons 2009-2017 (64-142 nests per year, General Linear Model Slope Value = -0.061; data pooled for five beaches); similarly, vulnerable leatherback nests decreased across the same period in the main beach Los Garzos (0-69 nests/year; GLMSV = -0.34). Besides human and natural predation of the nests, no significant environmental impacts affect the beaches except probably on Obispo Isthmus where a gas pipeline installation interrupted the nesting activity in 2014. Observed changes to the nesting trends in these small rookeries have a collective impact on broader conservation concerns for sea turtles in the region.
机译：在全球范围内，很少针对小型海龟进行海龟评估。委内瑞拉Paria海湾东北海岸的五个主要海滩上筑巢了两种海龟（Hawksbill，Eretmochelys imbricata； Leatherback，Dermochelys coriacea）。在该群体中使用广义线性模型评估了人口趋势，并将其与其他小型群体进行了比较。这两个物种均显示出明显的负巢趋势：在2009-2017年的9个季节中，极度濒危的ill的嵌套减少（每年64-142个巢，一般线性模型坡度值= -0.061；汇总了五个海滩的数据）；同样，Los Garzos主海滩的脆弱棱皮龟巢在同一时期有所减少（0-69个巢穴/年； GLMSV = -0.34）。除了人为和自然捕食巢外，对海滩无重大影响，除了可能对奥比斯波峡峡（Obispo Isthmus）造成影响，该地段的天然气管道设施在2014年中断了筑巢活动。观察到这些小群的筑巢趋势发生变化，对更广泛的保护产生了集体影响。对该地区海龟的关注。

著录项

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