Navigation Links
Counting frogs: Why monitoring our amphibian populations is important
Date:3/23/2010

Montreal, March 23, 2010 Amlie Perez is preparing to tally the number of amphibians in the Montreal area for the second summer in a row. The objective? To measure the impact of the invasive plant Phragmites australis, or common reed, on the amphibian populations of southern Quebec.

A graduate student in biology at the Universit de Montral, Perez intends to visit more than 50 swamps and lakes. Last year she spotted seven species: the grey treefrog, northern spring peeper, wood frog, green frog, northern leopard frog, bullfrog and the American toad. She captured and released 257 adults and 1600 tadpoles.

Phragmites australis comes from overseas and has spread in Quebec ecosystems at an alarming rate. Wherever it lays its roots, the neighboring biodiversity is threatened and biologists are increasingly interested how plants and animals either adapt or disappear from that ecosystem.

"The analysis is far from over," says Perez. "Initial findings show that there is a slight decrease in frogs wherever Phragmites australis grows except northern leopard frog populations, which seem intact."

The last leg of her research will be experimental. Perez will put eggs, tadpoles and colonies of Phragmites australis in controlled water basins to see how pH levels, oxygen and temperature are affected.

As a European, Perez moved to Quebec to explore its natural ecosystems and abundant biodiversity. She quickly learned, however, that the natural treasure is far from secure. More than a third of Quebec's amphibian species are threatened with extinction, according to the International Union for Conservation of Nature. That number could increase if Quebec wetlands and natural habitats aren't protected.

"The disruption of aquatic landscapes (increased agriculture, disappearing of wetlands) is the number one reason for the decline in amphibian populations," says Perez. "The invasion of these wetlands by exotic plants could be just as disastrous."

Perez' research, which is supported by Ducks Unlimited Canada, is being supervised by Jacques Brisson, a researcher at the Universit de Montral Institut de recherche en biologie vgtale, and Marc Mazerolle, a professor at the Universit du Qubec en Abitibi-Tmiscamingue. Both are conducting a broad study of the impact of this invasive Phragmites australis in Quebec. Their work is supported by the Natural Sciences and Engineering Research Council of Canada and the Canadian Wildlife Service.


'/>"/>

Contact: Sylvain-Jacques Desjardins
sylvain-jacques.desjardins@umontreal.ca
514-343-7593
University of Montreal
Source:Eurekalert

Related biology news :

1. Mars Express -- 5000 orbits and counting
2. When accounting for the global nitrogen budget, dont forget fish
3. Counting tumor cells in blood predicts treatment benefit in prostate cancer
4. Study shows Californias autism increase not due to better counting, diagnosis
5. Carbon accounting from atmospheric measurements -- the aircraft perspective
6. Counting sheep in climate change predictions
7. The straight poop on counting tigers
8. Counting duplicated genome segments now possible
9. Miscounting bioenergy benefits may increase greenhouse gas release
10. Genes, Environment and Health Initiative invests in genetic studies, environmental monitoring
11. Mellon awards Carnegie Grant for Ecological Monitoring in South Africa
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2017)... UBM,s Advanced Design and Manufacturing event in ... and evolving technology through its 3D Printing and Smart ... the expo portion of the event and feature a ... on trending topics within 3D printing and smart manufacturing. ... will take place June 13-15, 2017 at the Jacob K. ...
(Date:4/11/2017)... , Apr. 11, 2017 Research and Markets ... 2017-2021" report to their offering. ... The global eye tracking market to grow at a CAGR ... Global Eye Tracking Market 2017-2021, has been prepared based on an ... the market landscape and its growth prospects over the coming years. ...
(Date:4/6/2017)... Forecasts by Product Type (EAC), ... End-Use (Transportation & Logistics, Government & Public Sector, Utilities ... Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation (BFSI), ... you looking for a definitive report on the $27.9bn ... ...
Breaking Biology News(10 mins):
(Date:6/20/2017)... Fairfield, Iowa (PRWEB) , ... June 20, 2017 ... ... a chance to immediately determine the adulterants which pose the most likely threat ... 25 - 28 of this year. , IFT's annual food expo attracts ...
(Date:6/20/2017)... Parsippany, NJ (PRWEB) , ... June 20, 2017 , ... ... OHAUS makes the transition from being a trusted supplier in the weighing industry, to ... including cell extractions, ELISA essays, enzyme reactions, immunoassays, hybridizations and more, allowing for ...
(Date:6/19/2017)... ... June 19, 2017 , ... EDETEK, Inc., a ... that it is launching two new additions of its award-winning cloud-based platform CONFORM™: ... at the DIA 2017 Annual Meeting in Chicago, IL, June 19-22, 2017. , ...
(Date:6/16/2017)... ... June 16, 2017 , ... Cognition Corporation , ... two more sessions of its “From the Helm” Webinar Series. , The ... online templates for design control exercises. Led by David Cronin, Cognition’s CEO, the ...
Breaking Biology Technology: