The riverine ecosystem synthesis: biocomplexity in river networks across space and time
The riverine ecosystem synthesis: biocomplexity in river networks across space and time
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DOI：
10.1002/rra.901
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发表时间：
2006-02
影响因子：
2.2
通讯作者：
J. Thorp;M. Thoms;Michael D. Delong
中科院分区：
文献类型：
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作者：
J. Thorp;M. Thoms;Michael D. Delong
我们提出了一个集成的，启发式的模型，从源头到大型河流的时空尺度的激流生物复杂性。河流生态系统综合（RES）提供了一个框架，了解广泛的，往往是不连续的模式沿着纵向和横向尺寸的河流网络和当地的生态模式在不同的时间和较小的空间尺度。而不是提出一个全新的模型，我们安排了一个概念婚姻的生态地貌（河流地貌的生态方面）与陆地景观模型描述层次斑块动态。我们修改了这个陆地模型的五个组成部分：（1）嵌套的，不连续的斑块镶嵌层次结构;（2）生态系统动态作为斑块内和斑块间动态的复合;（3）链接的模式和过程;（4）非平衡和随机过程的主导地位;（5）准平衡，亚稳态的形成。我们的概念模型融合了我们对生物复杂性的观点，以及1980-2004年提出的水生模型。
We propose an integrated, heuristic model of lotic biocomplexity across spatiotemporal scales from headwaters to large rivers. This riverine ecosystem synthesis (RES) provides a framework for understanding both broad, often discontinuous patterns along longitudinal and lateral dimensions of river networks and local ecological patterns across various temporal and smaller spatial scales. Rather than posing a completely new model, we arrange a conceptual marriage of eco‐geomorphology (ecological aspects of fluvial geomorphology) with a terrestrial landscape model describing hierarchical patch dynamics. We modify five components of this terrestrial model for lotic ecosystems: (1) nested, discontinuous hierarchies of patch mosaics; (2) ecosystem dynamics as a composite of intra‐ and inter‐patch dynamics; (3) linked patterns and processes; (4) dominance of non‐equilibrial and stochastic processes; and (5) formation of a quasi‐equilibrial, metastable state. Our conceptual model blends our perspectives on biocomplexity with aspects of aquatic models proposed from 1980–2004.