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Alternative biome states challenge the modelling of species' niche shifts under climate change
Journal of Ecology ( IF 5.5 ) Pub Date : 2021-10-07 , DOI: 10.1111/1365-2745.13781 Juli G. Pausas 1 , William J. Bond 2
中文翻译:
替代生物群落状态挑战气候变化下物种生态位变化的模型
更新日期:2021-12-10
Journal of Ecology ( IF 5.5 ) Pub Date : 2021-10-07 , DOI: 10.1111/1365-2745.13781 Juli G. Pausas 1 , William J. Bond 2
Affiliation
- It is common to characterise the species niche using climate and global species distribution maps. This is then used to predict changes in distribution under a warming climate. This approach assumes that climate is a major driver of species distribution and that each species responds individually (sensu Gleason) to climate.
- However, in many world landscapes, for a given climate, strikingly different vegetation types co-occur: forests and non-forests. These two alternative biome states are maintained by different feedback processes and have radically different species with contrasting shade and disturbance tolerance traits.
- We propose that to improve predictions of species distribution changes under a novel climate, we need to consider the presence or absence of forest shade, as species are likely to respond individually only within their forest or non-forest biome, and not across biomes.
- Synthesis. By considering shade as a biotic filter in niche modelling, we are not only improving our predictive capacity, but we are also reconciling the two views of communities: both the individualistic (within biome) and the organismal (across biomes) views of the community concept become relevant and complementary.
中文翻译:
替代生物群落状态挑战气候变化下物种生态位变化的模型
- 使用气候和全球物种分布图来表征物种生态位是很常见的。然后将其用于预测气候变暖下分布的变化。这种方法假设气候是物种分布的主要驱动因素,并且每个物种都对气候做出单独的反应(sensu Gleason)。
- 然而,在许多世界景观中,对于给定的气候,同时出现截然不同的植被类型:森林和非森林。这两种替代的生物群落状态由不同的反馈过程维持,并且具有完全不同的物种,具有对比鲜明的阴影和干扰耐受性特征。
- 我们建议,为了改进对新气候下物种分布变化的预测,我们需要考虑森林阴影的存在与否,因为物种可能仅在其森林或非森林生物群落内单独响应,而不是跨生物群落。
- 合成。通过在生态位建模中将阴影视为生物过滤器,我们不仅提高了我们的预测能力,而且还调和了社区的两种观点:社区概念的个人主义(生物群落内)和有机体(跨生物群落)观点变得相关和互补。