Ben-Moshe Noam, Rosensaft Marcelo, Iwamura Takuya
Tel Aviv University, Zoology Tel Aviv Israel.
Geological Survey of Israel Jerusalem Israel.
Ecol Evol. 2023 Mar 21;13(3):e9915. doi: 10.1002/ece3.9915. eCollection 2023 Mar.
Geology plays a fundamental role in establishing species' habitats, determining both physical (e.g., landscape morphology, soil texture) and chemical (e.g., mineral composition, water availability) properties. In the current Anthropocene epoch, human activity is transforming Earth's geology and ecosystems. Yet to date, there have been almost no studies incorporating geology when examining the effect of such land-use changes on species distribution. This study seeks to uncover how specific land-use changes interact with geology, in order to explain the recent and rapid expansion of the rock hyrax () across the mountains of central Israel and the West Bank. Hyraxes are dependent on rock mounds for their habitat, and their expansion seems to be correlated with increasing infrastructure construction. However, their expansion patterns differ among locations, even when the human land-use is similar. To explain the patterns of hyrax distribution observed over the past 46 years, we converted geological data into ecological data, which present the probability of the local bedrock breaking into boulders, whether due to either natural or anthropogenic weathering processes. We applied species distribution models (SDMs) and found that the expansion of rock hyrax populations was facilitated by means of the interaction of specific geological units with land-use practices (e.g., roads and construction), which resulted in the accumulation of large boulders, creating novel habitats and stepping stones in previously unsuitable areas for hyraxes. Since rock hyraxes are major hosts of the leishmaniasis pathogen, the findings from this study offer important insights into the progression and potential outbreaks of the disease in human populations. Understanding the role that geology plays in shaping a species' niche is expected to prove useful in studying the distribution of other wildlife species and is fundamental in studies seeking to predict the potential ecological impacts on local biodiversity associated with land-use change.
地质学在确立物种栖息地方面起着基础性作用,它决定了物理性质(如地貌形态、土壤质地)和化学性质(如矿物成分、水资源可利用性)。在当前的人类世时期,人类活动正在改变地球的地质和生态系统。然而,迄今为止,在研究此类土地利用变化对物种分布的影响时,几乎没有研究将地质学纳入考虑。本研究旨在揭示特定的土地利用变化如何与地质相互作用,以解释岩蹄兔()最近在以色列中部和西岸山区迅速扩张的现象。岩蹄兔依赖岩堆作为栖息地,它们的扩张似乎与基础设施建设的增加相关。然而,即使人类土地利用情况相似,它们在不同地点的扩张模式也有所不同。为了解释过去46年中观察到的岩蹄兔分布模式,我们将地质数据转化为生态数据,这些数据呈现了当地基岩因自然或人为风化过程而破碎成巨石的概率。我们应用了物种分布模型(SDMs),发现岩蹄兔种群的扩张是通过特定地质单元与土地利用方式(如道路和建筑)的相互作用实现的,这导致了巨石的堆积,在以前对岩蹄兔不合适的区域创造了新的栖息地和踏脚石。由于岩蹄兔是利什曼病病原体的主要宿主,本研究的结果为该疾病在人类中的传播和潜在爆发提供了重要见解。了解地质学在塑造物种生态位中所起的作用,有望在研究其他野生动物物种的分布时发挥作用,并且在寻求预测与土地利用变化相关的对当地生物多样性潜在生态影响的研究中至关重要。