Horesh Sefi J A, Ovadia Ofer
Department of Life Sciences Ben-Gurion University of the Negev Be'er Sheva Israel.
Midbarium Animal Park Be'er Sheva Israel.
Ecol Evol. 2024 Aug 16;14(8):e70108. doi: 10.1002/ece3.70108. eCollection 2024 Aug.
Anthropogenic changes, such as land use, are the main drivers causing climate change and biodiversity loss, with hundreds of thousands of species lacking sufficient habitats for their populations to persist and likely to go extinct within decades. Endemic species are more susceptible to habitat changes and are at the forefront of the biodiversity crisis. We used species distribution models to generate a relative habitat suitability map and identified the habitat requirements of the critically endangered and endemic Be'er Sheva fringe-fingered lizard (). The model showed that the species' suitable habitats are associated with arid loess plains characterized by scattered, low vegetation cover, primarily on north-facing aspects, suggesting that these species-specific habitat requirements limit its distribution. The size of the potentially suitable area within the species' historical range is 1350.73 km. However, anthropogenic changes decreased the remaining suitable habitat to 995.04 km. Most of this area is unprotected and at risk of further adverse anthropogenic effects. Only 91.72 km of this area is protected by the Israel Nature and Parks Authority, and 587.11 km may be considered indirectly protected because it is within military firing zones. Our study is the first attempt to map the remaining suitable habitat of based on the results of a species distribution model. The results of this model can assist in prioritizing the protection of areas needed for the conservation of this critically endangered and endemic lizard species.
人为变化,如土地利用,是导致气候变化和生物多样性丧失的主要驱动因素,成千上万的物种缺乏足够的栖息地来维持其种群数量,并且可能在几十年内灭绝。特有物种更容易受到栖息地变化的影响,处于生物多样性危机的前沿。我们使用物种分布模型生成了相对栖息地适宜性地图,并确定了极度濒危的特有物种贝尔谢巴缘趾蜥蜴()的栖息地需求。该模型表明,该物种的适宜栖息地与干旱的黄土平原相关,其特征是植被覆盖稀疏且低矮,主要分布在朝北的区域,这表明这些特定物种的栖息地需求限制了其分布范围。该物种历史分布范围内潜在适宜区域的面积为1350.73平方千米。然而,人为变化使剩余的适宜栖息地减少到995.04平方千米。这片区域的大部分未受保护,面临进一步不利人为影响的风险。这片区域中只有91.72平方千米受到以色列自然与公园管理局的保护,587.11平方千米可能被视为间接保护区域,因为它位于军事射击区内。我们的研究首次尝试根据物种分布模型的结果绘制的剩余适宜栖息地地图。该模型的结果有助于确定保护这种极度濒危的特有蜥蜴物种所需区域的保护优先级。