Chapter 5.1: Anthropogenic threats to intermittent rivers and ephemeral streams
2017
Chiu, M.C. | Leigh, C. | Mazor, R. | Cid, N. | University of California [Berkeley] (UC Berkeley) ; University of California (UC) | Milieux aquatiques, écologie et pollutions (UR MALY) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Southern California Coastal Water Research Project (SCCWRP) | UNIVERSITAT DE BARCELONA ESP ; Partenaires IRSTEA ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)
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Показать больше [+] Меньше [-]Английский. In intermittent rivers and ephemeral streams (IRES), significant anthropogenic threats result from alterations in natural flow regimes, changes in geomorphological features, and degraded water quality. These changes may favor invasion by alien species, a major ecological problem in IRES. – Anthropogenic threats in IRES often exceed the thresholds of native species' adaptations and can change community structure and ecological processes. Impacts may cascade to downstream waterbodies and adjacent riparian wetlands. – Hydrology, geomorphology, and water quality impacts often occur concurrently (e.g., from mining activities) and result in multiple stressors in IRES, which can increase their vulnerability to alien species. – IRES are under-appreciated in terms of the ecosystem services they provide, resulting in a lack of biological monitoring systems which consequently hinders effective management strategies.
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