School of GeoSciences, University of Edinburgh, Edinburgh EH9 3FF, Scotland.
Biological and Environmental Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden.
Science. 2020 Jun 19;368(6497):1341-1347. doi: 10.1126/science.aba1289.
Global biodiversity assessments have highlighted land-use change as a key driver of biodiversity change. However, there is little empirical evidence of how habitat transformations such as forest loss and gain are reshaping biodiversity over time. We quantified how change in forest cover has influenced temporal shifts in populations and ecological assemblages from 6090 globally distributed time series across six taxonomic groups. We found that local-scale increases and decreases in abundance, species richness, and temporal species replacement (turnover) were intensified by as much as 48% after forest loss. Temporal lags in population- and assemblage-level shifts after forest loss extended up to 50 years and increased with species' generation time. Our findings that forest loss catalyzes population and biodiversity change emphasize the complex biotic consequences of land-use change.
全球生物多样性评估强调了土地利用变化是生物多样性变化的关键驱动因素。然而,几乎没有经验证据表明森林丧失和增加等生境转化如何随时间重塑生物多样性。我们量化了森林覆盖的变化如何影响 6 个分类群的 6090 个全球分布时间序列中种群和生态组合的时间变化。我们发现,森林丧失后,丰度、物种丰富度和时间物种更替(周转率)的局部增加和减少分别增加了多达 48%。森林丧失后种群和组合水平变化的时间滞后可达 50 年,并随物种的世代时间而增加。我们的研究结果表明,森林丧失会促进种群和生物多样性的变化,强调了土地利用变化的复杂生物后果。