Скачать или смотреть Beaver Dams & Enhanced Wildlife Habitat? (Let's follow an ecologist)

Midwest BEAVERS! In this video we follow ecologist Andrew across many beaver dams where he gives us an up-close look at the behaviors of beavers and shows us some really cool sediment trappings "Beaver (Castor canadensis) activity (i.e., damming of streamflow) holds significant potential to impact in-stream nutrient processing, through reduction of streamflow velocity and increase of water residence time within pools, trapping of sediment and organic material, raising of riparian groundwater tables and restoration of channel-floodplain connectivity. Thus, dams may represent a “no-cost in-stream conservation practice” that provides compound benefits beyond water quality and quantity, such as enhanced wildlife habitat and increased riparian vegetation diversity. Few studies have focused exclusively on beaver dam impacts to in-stream nutrient processing and watershed-scale nutrient loading, especially in the agricultural Midwest, where watersheds frequently exhibit elevated nutrient loads, flashy hydrology and stream channel incision."

0:00-0:44 Beaver Stories
0:45-1:43 Beaver canals and highways for accessing resources
1:44-2:37 Wood-chips and homemade bio-reactors
2:38-3:51 Spring dam after rain event
4:00-4:45 High organic content sediment
4:46-6:03 Wildlife and Beaver Lodges
6:04-8:58 Floodplain and Alluvial Material (Isn't that just mud?)
9:12-11:00 Willow trees resetting landscape
11:01-13:04 Beaver activity (not graceful on land)
13:05-14:29 Backwater canals and deeper pools and water tight dam
14:30-17:16 Muskrat tenants beavers landlords and primary dams
17:17- 19:02 Huge dam deep water
19:03-20:05 Unique finding and end

For more information check out some articles on the research project here: https://www.cals.iastate.edu/inrc/pro...

Beaver Dams Do a Dam Good Job Improving Iowa Water Quality here: https://www.thegazette.com/environmen...

Contact Andrew @ arupiper@iastate.edu

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#forest, #science, #stream, #farming, #water, #nutrients, #ecology, #beavers