Flooding drives a macroinvertebrate biomass boom in ephemeral floodplain wetlands
| Autor: | Michael Shackleton, Chris Davey, Paul McInerney, Rick J. Stoffels |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
geography Biomass (ecology) geography.geographical_feature_category River ecosystem 010504 meteorology & atmospheric sciences Ecology Floodplain Ephemeral key Wetland Aquatic Science 010603 evolutionary biology 01 natural sciences Food web Flood pulse concept Environmental science Water quality Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | Freshwater Science. 36:726-738 |
| ISSN: | 2161-9565 2161-9549 |
| Popis: | Despite broad recognition of the importance of the Flood Pulse Concept to large river ecology, few studies have provided empirical evidence to support a number of its arguments. We compared and contrasted the responses of water quality, nutrients, and the macroinvertebrates of ephemeral and permanent wetlands to a 22-wk managed inundation. We hypothesized that inundation of ephemeral wetlands would mobilize higher concentrations of nutrients from floodplain sediments and C from organic matter, which would, in turn, fuel greater abundance and biomass of aquatic macroinvertebrates than in permanent wetlands. The response of ephemeral wetlands to flooding contrasted very strongly with that of permanent wetlands. Freshly inundated ephemeral wetlands had significantly higher dissolved nutrient and organic C concentrations than permanent wetlands and supported different aquatic macroinvertebrate communities. Macroinvertebrate diversity was higher in permanent wetlands, but ephemeral wetlands supported m... |
| Databáze: | OpenAIRE |
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