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首页> 外文期刊>African Journal of Ecology >Species Distribution Modelling predicts habitat suitability and reduction of suitable habitat under future climatic scenario for Sclerophrys perreti: A critically endangered Nigerian endemic toad
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Species Distribution Modelling predicts habitat suitability and reduction of suitable habitat under future climatic scenario for Sclerophrys perreti: A critically endangered Nigerian endemic toad

机译：物种分布模型预测栖息地适合和减少适合栖息地的危险性栖息地，为危险的危险情景：危及濒危尼日利亚特有蟾蜍

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摘要

Sclerophrys perreti is a critically endangered Nigerian native frog currently imperilled by human activities. A better understanding of its potential distribution and habitat suitability will aid in conservation; however, such knowledge is limited for S. perreti. Herein, we used a species distribution model (SDM) approach with all known occurrence data (n = 22) from our field surveys and primary literature, and environmental variable predictors (19 bioclimatic variables, elevation and land cover) to elucidate habitat suitability and impact of climate change on this species. The SDM showed that temperature and precipitation were the predictors of habitat suitability for S. perreti with precipitation seasonality as the strongest predictor of habitat suitability. The following variable also had a significant effect on habitat suitability: temperature seasonality, temperature annual range, precipitation of driest month, mean temperature of wettest quarter and isothermality. The model predicted current suitable habitat for S. perreti covering an area of 1,115 km(2). However, this habitat is predicted to experience 60% reduction by 2050 owing to changes in temperature and precipitation. SDM also showed that suitable habitat exists in south-eastern range of the inselberg with predicted low impact of climate change compared to other ranges. Therefore, this study recommends improved conservation measures through collaborations and stakeholder's meeting with local farmers for the management and protection of S. perreti.
机译：冒险体Perreti是一个批判性濒危的尼日利亚本地青蛙，目前受到人类活动的危险。更好地了解其潜在的分布和栖息地适用性将有助于保护;然而，这些知识有限于S. Perreti。在此，我们使用来自我们的现场调查和主要文献的所有已知的出现数据（n = 22）的物种分布模型（SDM）方法，以及环境可变预测器（19个生物魅力变量，海拔和陆地覆盖），以阐明栖息地适合和影响气候变化对此物种。 SDM表明，温度和降水是栖息地适合于Perreti的栖息地适合性的预测因子，其具有降水季节性，作为栖息地适合性最强的预测因子。以下变量也对栖息地适用性产生了显着影响：温度季节性，温度年度范围，最干燥的月份降水，最潮湿的季度的平均温度和等温性。该模型预测了覆盖1,115公里（2）面积的S. Perreti的当前合适的栖息地。然而，由于温度和降水的变化，预计该栖息地预计将经历60％减少60％。 SDM还表明，与其他范围相比，inselberg的东南部范围内存在适当的栖息地，预测气候变化的低影响。因此，本研究建议通过与当地农民的合作和利益攸关方会面改善保护措施，以便管理和保护S. Perreti。

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