Range size predicts the risk of local extinction from habitat loss
Range size predicts the risk of local extinction from habitat loss
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DOI：
10.1111/geb.13003
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发表时间：
2019-09-12
影响因子：
6.4
通讯作者：
Pereira, Henrique M.
中科院分区：
文献类型：
--
作者：
Staude, Ingmar R.;Navarro, Laetitia M.;Pereira, Henrique M.
目的物种的地理分布范围大小是全球物种灭绝脆弱性的一个强有力的预测因子。然而，目前尚不清楚在小得多的范围内，范围大小是否也能很好地预测物种灭绝的风险。在这里，我们重建生物多样性时间序列，以询问小范围的物种是否随着局部尺度上的栖息地丧失而优先下降。全球定位。时间段为1500-2015年。主要分类群研究维管植物。方法对3个生物多样性数据共享网络中的18万种维管植物7000万次发生记录进行整理。我们将这些数据与全球土地利用变化的数据结合起来，找到了具有自然栖息地丧失前后生物多样性数据的位置(0.25度网格单元)。首先，我们考察了栖息地丧失前后群落中值范围大小的变化。其次，我们量化了在不同栖息地丧失水平下小范围和大范围物种局部持续生存的概率。结果平均而言，栖息地丧失后群落的中位数范围大小较高。在已经适度丧失栖息地的情况下，活动范围较小的物种比活动范围较大的物种持续生存的可能性更低(
Aim The geographical range size of species is a strong predictor of vulnerability to global extinction. However, it remains unclear whether range size is also a good predictor of extinction risk at much smaller scales. Here, we reconstruct biodiversity time series to ask whether species with small ranges have declined preferentially with habitat loss at the local scale. Location Global. Time period 1500-2015. Major taxa studied Vascular plants. Method We collated 70 million occurrence records of 180,000 species of vascular plants from three biodiversity data-sharing networks. We combined these with data on changes in global land use to find locations (0.25 degrees grid cells) with biodiversity data before and after loss of natural habitat. First, we examined the change in community median range size before and after habitat loss. Second, we quantified the probabilities of local persistence of small- and large-ranged species at different levels of habitat loss. Results Community median range size was higher after habitat loss, on average. Species with small ranges had lower probabilities of persistence than species with large ranges at already moderate habitat loss (