Navigation Links
Climate change effects on imperiled Sierra frog examined
Date:12/11/2008

Climate change can have significant impacts on high-elevation lakes and imperiled Sierra Nevada Yellow-legged frogs that depend upon them, according to U.S. Forest Service and University of California, Berkeley, scientists.

Their findings appear in the current issue of the journal "Herpetological Conservation and Biology" where they show how a combination of the shallow lakes drying up in summer and predation by introduced trout in larger lakes severely limits the amphibian's breeding habitat, and can cause its extinction.

"Environmental factors that increase summer drying of small lakes are likely to bring further population decline because the larger lakes are off limits to breeding," said Kathleen Matthews a Forest Service scientist at the Pacific Southwest Research Station and one of the studies authors.

Matthews co-authored the 10-year study with Igor Lacan, of the U.C. Berkeley Department of Environmental Science, Policy and Management, and Krishna Feldman, another Pacific Southwest Research Station scientist. The Forest Service funded the study.

The Sierra Nevada Yellow-legged frog was common in Sierra Nevada high-elevation lakes and slow-moving streams at altitudes ranging from 4,500 to 12,000 feet. But, its range has decreased more than 80 percent in the last 90 years. These lakes and streams were historically fishless, until hybrid trout were introduced.

The researchers studied lakes in Kings Canyon National Park's Dusy Basin that are mostly fed by snowmelt. Climate change models suggest one of the principal effects of climate change on Sierra Nevada water balance will be a decreased snow pack, with more than half of the current snow water equivalent gone by 2090.

Sierra Nevada Yellow-legged frogs need two to four years of permanent water to complete their development so repeated tadpole mortality from lakes drying up in summer leads to population decline. The scientists found the effect to be a distinct mortality
'/>"/>

Contact: Roland Giller
rgiller@fs.fed.us
510-559-6327
US Forest Service, Pacific Southwest Research Station
Source:Eurekalert

Page: 1 2

Related biology news :

1. Time running out on coral reefs as climate change becomes increasing threat
2. Climate change setback for acidified rivers
3. Most US organizations not adapting to climate change
4. Biogeography, changing climates and niche evolution
5. Cool idea for efficient climate control wins recognition
6. Key link in how plants adapt to climate discovered by Stanford researchers
7. Getting warmer? Prehistoric climate can help forecast future changes
8. Climate change opens new avenue for spread of invasive plants
9. Alpine rivers hold important clues for preserving biodiversity and coping with climate change
10. Issues at intersection of climate change and health impact global well-being
11. UI researchers help to improve carbon measurements in global climate studies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/29/2014)... available in German . ... organisms is considered the oldest form of communication. Acting ... for example, the sexual attraction between males and females. ... to coordinate reproductive behavior in males and females. Scientists ... the Algarve in Faro, Portugal, and at the Max ...
(Date:8/28/2014)... mobile app called TX Invasives is now available from ... of Texas at Austin for identifying harmful non-native plant, ... species in the United States cause about $137 billion ... agricultural crops, clog waterways, kill native plants and more. ... app for reporting where invasive species occur, we,re more ...
(Date:8/28/2014)... for your neighbors than traditional cigarettes, but still ... new study from USC. , Scientists studying secondhand ... in exposure to harmful particles, with close-to-zero exposure ... some harmful metals in second-hand e-cigarette smoke were ... smoke contains high levels of polycyclic aromatic hydrocarbons ...
Breaking Biology News(10 mins):Ready for mating at the right time 2Ready for mating at the right time 3Mobile app makes ID of harmful plants, insects in Texas a snap 2Second-hand e-cig smoke compared to regular cigarette smoke 2
... running motions and whether the hips, knees or ankles are ... North Carolina State University show that the hips generate more of ... the power when humans run. Knees provide approximately one-fifth or less ... The research could help inform the best ways of building ...
... by motor control and psychology researchers at Indiana University ... feature of bipolar disorder, not just a random symptom, ... brain affected by the psychiatric disorder and new potential ... control and other motor control issues are frequently experienced ...
... wealth of health information hiding in the human immune ... the many and complex roles that the immune system ... to addressing specific health issues. Now, research led by ... shown that a new generation of microchips developed by ...
Cached Biology News:Hips take walking in stride; ankles put best foot forward in run 2Bipolar disorder: Mind-body connection suggests new directions for treatment, research 2Bipolar disorder: Mind-body connection suggests new directions for treatment, research 3Bipolar disorder: Mind-body connection suggests new directions for treatment, research 4Improving health assessments with a single cell 2Improving health assessments with a single cell 3
(Date:8/28/2014)... 2014 SPIE Fellow Glenn Boreman, Professor ... Science and Director of the Center for Optoelectronics and ... Charlotte, and co-founder and Chairman of the Board of ... 2015 Vice President of SPIE, the international society for ... announced recent election results at the Annual General Meeting ...
(Date:8/28/2014)... A new research platform uses a laser ... structures undergoing stress and heating, an approach ... for microelectronics and batteries., This new technique, ... how heating and the surface stress of ... have discussed the merits of surface-stress influence ...
(Date:8/28/2014)... -- Next month, executives from clinical trial marketing firm BBK Worldwide ... Patient-Centered Clinical Trials 2014 , to be held at ... September 4-5. Patient recruitment experts Bonnie A. Brescia , ... share insights on the benefits of employing an effective patient ... media to mobile apps – can be used to drive ...
(Date:8/28/2014)... Exciting new work by a Florida State University ... that can take your temperature, emit white light, and ... the molecule looks like a butterfly. , Biwu Ma, ... Engineering in the FAMU-FSU College of Engineering, created the ... has continued to discover that his creation has many ...
Breaking Biology Technology:Glenn Boreman, UNC Professor and Plasmonics Co-Founder, Elected to SPIE Presidential Chain 2New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3BBK Worldwide Leads Sessions at Key September Events 2Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 2
... combinatorial chemistry is expected to fuel demand for standard as well ... end-use trends, the market is projected to reach US$3.1 billion by ... ... 2008 -- Liquid handling/transfer equipment such as pumps is widely used ...
... Engineers at the University of California, Berkeley, are reporting ... revitalize optical lithography, a patterning technique that dominates modern ... focus light through the excitation of electrons - or ... head" that resembles the stylus on the arm of ...
... Oct. 22 /PRNewswire-FirstCall/ - Oncolytics Biotech Inc. (TSX:,ONC, ... authored by,Prof. Hardev Pandha of The Royal Surrey ... and Cisplatin in a,B16.F10 Mouse Melanoma Model" is ... 20th EORTC-NCI-AACR Symposium on Molecular Targets and Cancer,Therapeutics. ...
Cached Biology Technology:Laboratory Pumping Systems to Reach $3.1 Billion by 2012, According to New Report by Global Industry Analysts, Inc. 2Laboratory Pumping Systems to Reach $3.1 Billion by 2012, According to New Report by Global Industry Analysts, Inc. 3Denser, more powerful computer chips possible with plasmonic lenses that 'fly' 2Denser, more powerful computer chips possible with plasmonic lenses that 'fly' 3Denser, more powerful computer chips possible with plasmonic lenses that 'fly' 4Oncolytics Biotech Inc. Collaborators to Present Preclinical Combination REOLYSIN(R) and Cisplatin Research at EORTC-NCI-AACR Annual Meeting 2Oncolytics Biotech Inc. Collaborators to Present Preclinical Combination REOLYSIN(R) and Cisplatin Research at EORTC-NCI-AACR Annual Meeting 3
... is a 16 amino acid (amino acids 3-18) synthetic peptide ... The sequence of this peptide is (amino to carboxy terminus): ... V - K - L - R - A - ... K(18). This peptide may be used for neutralization ...
... is the industry standard microarray image analysis ... imaging and analysis tools, visualizations, automation capabilities, ... is included with every GenePix scanner, and ... scanners and all types of arrays. A ...
... Multi-User Applications Package Superior Protein Detection ... The ProXPRESS 2D Proteomic Imaging System is ... proteomic and general life science research applications. ... use of all dyes in the UV ...
... Description: ,Kit containing Dermal Fibroblasts ... containing 20% FBS and 10% DMSO at ... mL) of optimized medium.This cell culture is ... guaranteed to provide an additional 6 months ...
Biology Products: