Navigation Links
Disappearing ducks?
Date:2/1/2010

The loss of wetlands in the prairie pothole region of central North America due to a warmer and drier climate will negatively affect millions of waterfowl that depend on the region for food, shelter and raising young, according to research published today in the journal BioScience.

The new research shows that the region appears to be much more sensitive to climate warming and drying than previously thought.

"The impact to the millions of wetlands that attract countless ducks to these breeding grounds in spring makes it difficult to imagine how to maintain today's level of waterfowl populations in altered climate conditions," said Dr. Glenn Guntenspergen, a U.S. Geological Survey researcher and one of the report authors. "Parents may not have time to raise their young to where they can fly because of wetlands drying up too quickly in the warming climate of the future," he added.

A new wetland model developed by the authors to understand the impacts of climate change on wetlands in the prairie pothole region projected major reductions in water volume, shortening of the time water remains in wetlands and changes to wetland vegetation dynamics in this 800,000-square kilometer region in the United States (North and South Dakota, Montana, Minnesota and Iowa) and Canada.

Many wetland species -- such as waterfowl and amphibians -- require a minimum time in water to complete their life cycles. For example, most dabbling ducks -- such as mallards and teal-- require at least 80 to 110 days of surface water for their young to grow to where they can fly and for breeding adults to complete molting, the time when birds are flightless while growing new feathers. In addition, an abundance of wetlands are needed because breeding waterfowl typically isolate themselves from others of the same species.

"Unfortunately, the model simulations show that under forecasted climate-change scenarios for this region (an increase of 4-degrees Celsius), the western prairie potholes will be too dry and the eastern ones will have too few functional wetlands and nesting habitat to support historical levels of waterfowl and other wetland-dependent species," said Dr. W. Carter Johnson, another study author and a researcher at South Dakota State University.

The authors noted that their model allowed a more comprehensive analysis of climate change impacts across the northern prairies because it simultaneously examined the hydrology and vegetation dynamics of the wetland complex, which are both important for the wildlife that depend on the prairie potholes for part or all of their life cycles.

"Our results indicate that the prairie wetlands are highly vulnerable to climate warming, and are less resilient than we previously believed," said Guntenspergen. "All but the very wettest of the historic boom years for waterfowl production in the more arid parts of the prairie pothole region may be bust years in a 4-degrees Celsius warmer climate."

These findings may serve as a foundation for managers and policy makers to develop management plans to prepare for and adapt to climate change in the prairie pothole region.


'/>"/>

Contact: Glenn Guntenspergen
glenn_guntenspergen@usgs.gov
218-720-4307
United States Geological Survey
Source:Eurekalert

Related biology news :

1. Disappearing act of worlds second largest fish explained
2. Californias wildflowers are disappearing, new book by UCR ecologist cautions
3. A Great Lakes mystery: The case of the disappearing species
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/20/2016)...  VoiceIt is excited to announce its new ... By working together, VoiceIt and VoicePass will offer ... take slightly different approaches to voice biometrics, collaboration ... usability. Both ... "This marketing and technology partnership allows ...
(Date:4/28/2016)... , April 28, 2016 Infosys ... (NYSE: INFY ), and Samsung SDS, a global ... that will provide end customers with a more secure, fast ...      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ) , ... but it also plays a fundamental part in enabling and ...
(Date:4/15/2016)... , April 15, 2016  A new ... make more accurate underwriting decisions in a fraction ... timely, competitively priced and high-value life insurance policies ... screenings. With Force Diagnostics, rapid testing ... lifestyle data readings (blood pressure, weight, pulse, BMI, ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... 2016 , ... Newly created 4Sight Medical Solutions ... healthcare market. The company's primary focus is on new product introductions, to include ... are necessary to help companies efficiently bring their products to market. , The ...
(Date:6/27/2016)... 27, 2016   Ginkgo Bioworks , a leading ... was today awarded as one of the World ... world,s most innovative companies. Ginkgo Bioworks is engineering ... real world in the nutrition, health and consumer ... with customers including Fortune 500 companies to design ...
(Date:6/24/2016)... ... June 24, 2016 , ... While the majority of commercial spectrophotometers and fluorometers ... the 6000i models are higher end machines that use the more unconventional z-dimension of ... beam from the bottom of the cuvette holder. , FireflySci has developed several ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, one ... of their brand, UP4™ Probiotics, into Target stores nationwide. The company, which has ... add Target to its list of well-respected retailers. This list includes such fine ...
Breaking Biology Technology: