Navigation Links
Global warming experts recommend drastic measures to save species
Date:7/17/2008

AUSTIN, TexasAn international team of conservation scientists from Australia, the United Kingdom and United States, including University of Texas at Austin Professor Camille Parmesan, call for new conservation tactics, such as assisted migration, in the face of the growing threat of climate change.

They report their policy ideas in a paper published July 18 in the journal Science.

The authors argue that both the rapid rate of climate change and the presence of human-made barriers to natural movement will prevent many species from shifting where they live in response to changes in local climate.

They suggest that human-assisted translocation of individuals, often termed "assisted migration" or "assisted colonization," may be necessary to ensure colonization of new geographic regions as parts or all of the historical species' range becomes unsuitable.

"When I first brought up this idea some 10 years ago in conservation meetings, most people were horrified," Parmesan said. "But now, as the reality of global warming sinks in, and species are already becoming endangered and even going extinct because of climate change, I'm seeing a new willingness in the conservation community to at least talk about the possibility of helping out species by moving them around."

Parmesan and her colleagues point out that assisted migration can never be a major solution for wildlife, but could conceivably be used to help a few species that biologists and the public deem to be important enough for the effort and could otherwise go extinct.

The species would need to be easy to collect, raise or move. Its habitat requirements would need to be well understood, and there would need to be viable habitat options outside of the species' current range.

The authors present a conceptual framework for just how such decisions might be made.

This framework includes fundamental biological questions which much be addressed before decisions to act can be made, such as risk of extinction if nothing is done versus risk of harm to the new community if the species is moved there.

In addition to biological considerations, their framework includes social dimensions of the issue, such as cost and inherent value people place on the target species.

The authors argue that the most suitable scenario is when the risk of extinction of the target species is high in its historic range, but the risk to the community into which the species will be imported is low. It might also be appropriate when the likelihood of successful colonization is high, but the time and cost to perform the transplantation is low.

"Passively assisting coral reef migration may be acceptable, but transplanting polar bears to Antarctica, where they would likely drive native penguins to extinction, would not be acceptable," Parmesan said.

"Ultimately, the decision about whether to actively assist the movement of a species into new territories will rest on ethical and aesthetic grounds as much as on hard science," she said. "Conservation has never been an exact science, but preserving biodiversity in the face of climate change is likely to require a fundamental rethinking of what it means to 'preserve biodiversity.'"


'/>"/>

Contact: Lee Clippard
lclippard@mail.utexas.edu
512-232-0675
University of Texas at Austin
Source:Eurekalert

Related biology news :

1. Global Warming and the Habitability of Planet Earth, Sept. 26
2. Green skies: Engineers work may reduce jet travels role in global warming
3. Scientists in first global study of poison gas in the atmosphere
4. North Americas northernmost lake affected by global warming
5. IEEE-USA innovation forum will help prepare US tech leaders to prosper in a global marketplace
6. Majority of Americans want local action on global warming, says poll
7. International team of scientists warns of climate changes impact on global river flow
8. Changing the global dietary environment
9. Global deal fuels QUTs world-changing research
10. NIH hosts event to launch Council of Science Editors global theme issue
11. Agricultural soil erosion is not adding to global warming
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2016)... , April 13, 2016  IMPOWER physicians supporting ... are setting a new clinical standard in telehealth thanks ... By leveraging the higi platform, IMPOWER patients can routinely ... pulse and body mass index, and, when they opt ... and convenient visit to a local retail location at ...
(Date:3/31/2016)... , March 31, 2016  Genomics firm Nabsys has ... CEO, Barrett Bready , M.D., who returned to ... the original technical leadership team, including Chief Technology Officer, ... Product Development, Steve Nurnberg and Vice President of Software ... the company. Dr. Bready served as CEO ...
(Date:3/23/2016)... WAKEFIELD, Massachusetts , March 23, 2016 ... kombiniert im Interesse erhöhter Sicherheit Gesichts- und ... Xura, Inc. (NASDAQ: MESG ... heute bekannt, dass das Unternehmen mit SpeechPro ... insbesondere aus der Finanzdienstleistungsbranche, wird die Möglichkeit ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... ... Supplyframe, the Industry Network for electronics hardware design and ... in Pasadena, Calif., the Design Lab’s mission is to bring together inventors and ... brought to market. , The Design Lab is Supplyframe’s physical representation of one ...
(Date:6/23/2016)... June 23, 2016 Apellis Pharmaceuticals, Inc. ... clinical trials of its complement C3 inhibitor, APL-2. ... multiple ascending dose studies designed to assess the ... subcutaneous injection in healthy adult volunteers. ... as a single dose (ranging from 45 to ...
(Date:6/23/2016)... June 23, 2016 On Wednesday, June ... 4,833.32, down 0.22%; the Dow Jones Industrial Average edged 0.27% ... at 2,085.45, down 0.17%. Stock-Callers.com has initiated coverage on the ... Nektar Therapeutics (NASDAQ: NKTR ), Aralez Pharmaceuticals Inc. ... BIND ). Learn more about these stocks by ...
(Date:6/23/2016)... ... June 23, 2016 , ... Velocity Products, ... tools designed, tuned and optimized exclusively for Okuma CNC machining centers at The ... of a collaboration among several companies with expertise in toolholding, cutting tools, machining ...
Breaking Biology Technology: