Navigation Links
Scientists propose amphibian protection
Date:5/1/2014

An ecological strategy developed by four researchers, including two from Simon Fraser University, aims to abate the grim future that the combination of two factors could inflict on many amphibians, including frogs and salamanders.

A warming climate and the introduction of non-native fish in the American West's mountainous areas are combining to threaten the habitat that this ecologically critical group of species needs to thrive.

Previous studies predict the combined effect of climate change and non-native fish could cause amphibian populations to decline and even become locally extinct.

In their newly published study in the journal Frontiers in Ecology and the Environment, researchers examine this challenge and propose several new climate adaptation tools to reduce threats to amphibians.

The researchers say the novel suite of tools could help prioritize the restoration of amphibian habitats in Western North America's mountainous regions.

Wendy Palen, an SFU ecologist, Maureen Ryan, a postdoctoral fellow at SFU and the University of Washington (UW), Michael Adams, a research ecologist at the U.S. Geological Survey and Regina Rochefort, a science advisor at Washington State's North Cascades National Park, co-authored the paper.

Many amphibians in the American West's mountainous areas need predator-free wetlands and lakes during their aquatic life stages. "Amphibians predominantly use mountainous areas' small, shallow ponds to breed and feed," explains Ryan, the study's lead author.

"These kinds of wetlands are at the highest risk of drying up under climate change due to reduced snowpack and longer summer droughts. Non-native fish, such as brook and rainbow trout, were introduced for recreational fishing almost a century ago. They remove amphibians from the biggest and most stable lakes in the environment. Fish eat most amphibians and even at low densities can devour a lake's whole amphibian population."

Mindful of an opportunity to help amphibians, the researchers collaborated with UW colleagues to develop new maps and hydrological models of climate impacts specific to mountainous regions.

They are using these tools along with biological survey data to identify regions where native species are most threatened by the combined effects of climate change and fish. They then hope to work with area managers who would implement fish removals.

"Our work suggests that removing fish from strategic sites may restore resilience to landscapes where inaction might lead to tipping points of species loss," says Palen.

The SFU Earth to Ocean Research Group member has been collaborating with Adams since 1999 to evaluate threats to amphibians in mountainous regions.

"We hope newly developed wetland modeling tools can improve climate adaptation action plans so that intact ecosystems persist in the face of a changing climate," says Palen.

Hydrologists and remote sensors helped the researchers develop models that project a substantial loss of wetlands in America's western mountains over the next 40 to 80 years.

They note the combined threat of climate change and fish to amphibian survival also exists in B.C. but records of where fish have been introduced are scarce.

The researchers remind us that 95 per cent of the American West's lakes are currently stocked with non-native fish, so removing them from a few sites doesn't threaten recreational fishing opportunities.


'/>"/>

Contact: Carol Thorbes
cthorbes@sfu.ca
778-782-3035
Simon Fraser University
Source:Eurekalert  

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Queens scientists seek vaccine for Pseudomonas infection
3. Scientists produce eye structures from human blood-derived stem cells
4. American Society of Plant Biologists honors early career women scientists
5. Brandeis scientists win prestigious prize for circadian rhythms research
6. Scientists discover new method of proton transfer
7. Salk scientists open new window into how cancers override cellular growth controls
8. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
9. Scientists win $2 million to study new pathway in development and maintenance of lymphoma
10. UGA scientists reveal genetic mutation depicted in van Goghs sunflower paintings
11. Genetic mutation depicted in van Goghs sunflower paintings revealed by scientists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists propose amphibian protection
(Date:5/23/2017)... GENOA, Italy , May 23, 2017  Hunova, the first robotic ... and trunk, has been officially launched in Genoa, Italy ... Europe and the USA . The ... launched on the market by the IIT spin-off Movendo Technology thanks to ... view the Multimedia News Release, please click: ...
(Date:4/24/2017)... , April 24, 2017 ... and partner with  Identity Strategy Partners, LLP (IdSP) ... "With or without President Trump,s March 6, 2017 ... Terrorist Entry , refugee vetting can be instilled with ... resettlement. (Right now, all refugee applications are suspended ...
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced ... will feature emerging and evolving technology through ... Innovation Summits will run alongside the expo portion of ... sessions, panels and demonstrations focused on trending topics within ... advanced design and manufacturing event will take place June ...
Breaking Biology News(10 mins):
(Date:6/22/2017)... ... June 22, 2017 , ... RURO, Inc., a leading ... 6.5, a content-packed update to the Limfinity® framework. , LimitLIS® and other RURO ... diverse base of customers among labs and other businesses. Limfinity® 6.5 adds new ...
(Date:6/20/2017)... Pa. , June 20, 2017  Kibow Biotech ... pleased to announce the issuance of a new patent ... or hyperuricemia by the U.S. Patent and Trademark Office ... a winner of the Buzz of Bio award in ... is akin to developing non-drug approaches to chronic disease. ...
(Date:6/19/2017)... ... June 19, 2017 , ... ... clinical development reported today that it is launching two new additions of its ... be demonstrating new capabilities at the DIA 2017 Annual Meeting in Chicago, IL, ...
(Date:6/16/2017)... ... June 16, 2017 , ... CTNext , Connecticut’s go-to resource ... held at The LOFT at Chelsea Piers in Stamford. , Nine finalists, all of ... of judges for an opportunity to secure $10,000 awards to help support business growth. ...
Breaking Biology Technology: