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原文連結
論文資訊
- 類型：已發表論文
- 日期：2021-11-24
摘要
Understanding mechanisms of coexistence is a central topic in 生態學. 數學 analysis of models of competition between two identical 物種 moving at different rates of symmetric 擴散 in heterogeneous environments show that the slower mover excludes the faster one. The models have not been tested empirically and lack inclusions of a component of directed movement toward favourable areas. To address these gaps, we extended previous theory by explicitly including exploitable resource dynamics and directed movement. We tested the 數學 results experimentally using laboratory 族群s of the nematode worm, Caenorhabditis elegans. Our results not only support the previous theory that the 物種 diffusing at a slower rate prevails in heterogeneous environments but also reveal that moderate levels of a directed movement
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