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原文連結
論文資訊
- 類型：已發表論文
- 日期：2017-03-31
摘要
Aim: Determining the drivers of 物種 rarity is fundamental for understanding and conserving 生物多樣性. Rarity of a given 物種 within its community may arise due to exclusion by other ecologically similar 物種. Conversely, rare 物種 may occupy habitats that are rare in the landscape or they may be ill-suited to all available habitats. The first mechanism would lead to common and rare 物種 occupying similar ecological space defined by functional traits. The second mechanism would result in common and rare 物種 occupying dissimilar ecological space and spatial aggregation of rare 物種, either because they are specialists in rare habitats or because rare 物種 tend to be dispersal limited. Here, we quantified the contribution of locally rare 物種 to community functional richness and the spatial aggregation of 物種 acr
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