Ecosystem engineers: From pattern formation to habitat creation
Ecosystem engineers: From pattern formation to habitat creation
复制标题
DOI：
10.1103/physrevlett.93.098105
复制
发表时间：
2004-08-27
影响因子：
8.6
通讯作者：
Meron, E
中科院分区：
文献类型：
--
作者：
Gilad, E;von Hardenberg, J;Meron, E
干旱地区的栖息地和物种丰富度受到一些关键物种的动态影响，这些物种被称为“生态系统工程师”。这些物种调节了景观，重新分配了水资源，从而允许其他物种的引入。为旱地常见的一对生态系统工程师开发了一个数学模型：植物形成植被模式，蓝藻形成土壤结皮。该模型强调了栖息地形成和高栖息地丰富度的条件，并提出了环境变化导致物种丧失事件的新机制。
Habitat and species richness in drylands are affected by the dynamics of a few key species, termed "ecosystem engineers." These species modulate the landscape and redistribute the water resources so as to allow the introduction of other species. A mathematical model is developed for a pair of ecosystem engineers commonly found in drylands: plants forming vegetation patterns and cyanobacteria forming soil crusts. The model highlights conditions for habitat creation and for high habitat richness, and suggests a novel mechanism for species loss events as a result of environmental changes.