预测极度危的Be'er Sheva边缘手指的息地适宜性
Sefi J A Horesh1,2, Ofer Ovadia1,3
1Department of Life Sciences Ben-Gurion University of the Negev Be'er Sheva Israel.
Ecology and evolution
|August 19, 2024
概括
息地丧失威胁着临灭绝的贝尔谢瓦边缘手指. 种类分布模型显示适合的干旱草平原有限,大多数不受保护,受到人类活动的风险.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 类学 类学 类学 类学
背景情况:
- 人类造成的变化推动了气候变化和生物多样性丧失,严重危害了特有物种.
- 地方性物种,比如贝尔谢瓦边缘手指 (Acanthodactylus beershebensis),特别容易受到息地变化的影响.
- 由于息地不足,数十万种物种面临灭绝.
研究的目的:
- 为了绘制极度危的贝尔谢瓦边缘手指的剩余适合息地.
- 为了确定Acanthodactylus beershebensis的特定息地要求.
- 通过优先考虑保护区,为保护战略提供信息.
主要方法:
- 利用物种分布模型 (SDM) 来创建息地适应性地图.
- 分析了息地要求,重点关注植被覆盖面和外观.
- 量化历史和当前适合息地区域.
主要成果:
- 适合Acanthodactylus beershebensis的息地是干旱的草平原,植被稀疏,低矮,主要是在面向北的斜坡上.
- 历史适宜息地面积为1350.73平方公里,由于人为变化而减少到995.04平方公里.
- 大多数剩余的适合息地没有得到保护,只有91.72平方公里得到官方保护.
结论:
- 物种分布模型对于绘制和优先考虑危物种的保护工作至关重要.
- 需要采取紧急的保护行动,以保护Acanthodactylus beershebensis的剩余不受保护的适合息地.
- 间接保护息地的很大一部分存在于军事区内,突出了复杂的保护挑战.
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