来自马达加斯加安卡拉特拉保护区的Mantidactylus pauliani的种群状况和脆弱性
Herizo Oninjatovo Radonirina1, Bernard Randriamahatantsoa2, Nirhy H C Rabibisoa1,2
1Doctoral School of Natural Ecosystem, University of Mahajanga, Mahajanga 401, Madagascar.
Animals : an open access journal from MDPI
|September 9, 2023
概括
极度危的两动物Mantidactylus pauliani居住在马达加斯加的高海拔地区. 它的人口容易受到息地变化和野火的影响,需要进行保护工作.
科学领域:
- 类学 类学 类学
- 生态生态学 生态生态学
- 保护生物学 保护生物学
背景情况:
- 马达加斯加的山顶拥有独特的特有物种,具有特定的息地需求.
- 一种临灭绝的两动物Mantidactylus pauliani是安卡拉特拉山脉的特有动物,通常是水生动物.
- 这种物种的分布有限,对高海拔的息地有特殊的要求.
研究的目的:
- 提供关于Mantidactylus pauliani的分布和海拔范围的新数据.
- 评估息地使用情况并确定影响Mantidactylus pauliani种群的威胁.
- 分析与息地变化相关的物种发生情况.
主要方法:
- 从2018年到2021年进行的年度监测.
- 在海拔1762米至2378米之间的溪流沿线建立了9个100米的截面.
- 视觉接触调查和数据分析,使用千平方测试和因子对应分析.
主要成果:
- 曼蒂达克提勒斯·保利安尼 (Mantidactylus pauliani) 在海拔1900至2378米之间的海拔地区被发现.
- 该物种居住在潮湿的森林和草原息地.
- 发生率每年波动,在较高的海拔地区观察到更高的数量,受季节,溪流质量和水量的影响.
结论:
- 持续的息地变化对Mantidactylus pauliani构成重大威胁,增加了对人口减少的脆弱性.
- 每年的野火可能会对该物种的息地和生存产生负面影响.
- 保护战略必须应对息地变化和像林火这样的威胁,以保护这种特有两动物.
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