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University of New Mexico

Biology ETDs

2009

Flooding

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The Effects Of Stream Discharge And Channelization On The Macroinvertebrate Community In A Semi-Arid Landscape, Thomas Kennedy May 2009

The Effects Of Stream Discharge And Channelization On The Macroinvertebrate Community In A Semi-Arid Landscape, Thomas Kennedy

Biology ETDs

The Middle Rio Grande is the second largest watershed in the southwestern United States and is a vitally important component for the biodiversity in the region. Similar to many other rivers, the MRG is a temporally dynamic system that unfortunately, has been subjected to river regulation. As a result, the river has become channelised in many reaches disconnecting it from the surrounding floodplain. The effects of river regulation on the MRG and its surrounding riparian zone were largely unknown. I tested three main hypothesis with regards to the macroinvertebrates in the MRG: 1) Does flow variability structure the aquatic macroinvertebrate …