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:6/21/2016)... , June 21, 2016 NuData ... the new role of principal product architect and ... the director of customer development. Both will report ... technical officer. The moves reflect NuData,s strategic growth ... response to high customer demand and customer focus ...
(Date:6/9/2016)... control systems is proud to announce the introduction of fingerprint attendance control software, allowing ... are actually signing in, and to even control the opening of doors. ... ... ... Photo - http://photos.prnewswire.com/prnh/20160609/377487 ...
(Date:6/2/2016)... 2, 2016 The Department of Transport ... the 44 million US Dollar project, for the , ... including Personalization, Enrolment, and IT Infrastructure , to ... production and implementation of Identity Management Solutions. Numerous renowned international ... Decatur was selected for the most compliant ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... ... December 02, 2016 , ... Robots will storm the Prudential Center in ... 2016. The event, which is held on the United Nations International Day of Persons ... back into the workplace. Suitable Technologies is partnering with NTI to showcase how technology ...
(Date:12/2/2016)... India , December 2, 2016 ... by 2021, growing at a CAGR of 7.3% during the forecast ... while hospitals and diagnostic laboratories segment accounted for the largest share ... ... Complete report on global immunohistochemistry (IHC) market spread across 225 pages, ...
(Date:11/30/2016)... ... 2016 , ... BEI Kimco, a brand of Sensata Technologies, ... that ensures high alignment accuracy by preventing unwanted shaft rotation. The new VCA ... precision is required, such as in medical equipment, laboratory instrumentation, clean rooms, low-outgassing ...
(Date:11/30/2016)... New York , November 30, 2016 ... consolidated as a few players hold a dominant share ... Group, Charles River Laboratories International, Inc., and Merck KGaA, ... market in 2015. Transparency Market Research observes that these ... are focused on development products that are do not ...
Breaking Biology Technology: