HOME >> BIOLOGY >> NEWS
Fragmented habitats no ultimate refuges for forest-dwelling tropical birds

DURHAM, N.C. -- Deep-woods bird species that manage to hang on in remaining patches of a deforested area of Brazil gain no real advantage in avoiding extinction, Duke University ecologists have found. The researchers studied the coastal region harboring the greatest number of threatened birds in the Americas.

"We found that species that also tolerate secondary habitats are not deforestation's survivors," said Grant Harris, the first author of a paper on the subject published in the December issue of the research journal "Conservation Biology."

"If you lose your habitat, everybody is equally threatened," added Harris' co-author, Stuart Pimm. "There's no special class of species that seems to adapt well to the habitats we create for them."

Harris recently completed his doctorate under Pimm at Duke's Nicholas School of the Environment and Earth Sciences and is now employed by the U.S. Forest Service in Alaska. Pimm is the Nicholas School's Doris Duke Professor of Conservation Ecology who does extensive work in tropical areas.

Their research was funded by the American Philosophical Society.

"Deforestation is rarely total or completely permanent," the two authors wrote in their "Conservation Biology" paper. "Small patches of original habitat remain and, in time, secondary forests, gardens or plantations replace some cleared areas."

Given that reality, the two authors designed a study to explore how well some species survive in deforested habitat and whether some surviving species can persist in such landscapes.

Their study focused on Brazil's Atlantic Forest, which the authors estimate now has been reduced to 119,540 square kilometers, or about 10 percent of its original extent. "There are more species threatened with extinction in this coastal strip of rain forest than anywhere else in the Americas," Pimm said in an interview.

"Starting maybe 75 years ago people began moving inland from the coastal citie
'"/>

Contact: Monte Basgall
monte.basgall@duke.edu
919-681-8057
Duke University
30-Nov-2004


Page: 1 2 3

Related biology news :

1. In many habitats, competition is the drama, but benefactors set the stage
2. NASA ice images aid study of Pacific walrus arctic habitats
3. NASA technology monitors wildlife habitats from the air
4. Could better mangrove habitats have spared lives in the 2004 tsunami?
5. Researchers discover human embryonic stem cells are the ultimate perpetual fuel cell
6. Exercise aside, genes may ultimately dictate seniors mobility
7. The ultimate spa: embryonic body wash controls left-right development
8. Nations six most threatened national wildlife refuges named in 2005 State of the System Report
9. New study warns limited carbon market puts 20 percent of tropical forest at risk
10. Satellite survey links tropical park fires with poverty and corruption
11. Northern forests less effective than tropical forests in reducing global warming

Post Your Comments:
(Date:3/23/2015)... , March 23, 2015 SoundView Technology Group issues ... (NASDAQ: NXTD ) Wocket smart wallet. SoundView was one of ... on their experience with the Wocket in multiple scenarios and ... Whole Foods and other retailers, making both debit and credit ... also says, "If the company meets their plans in ...
(Date:3/20/2015)... and Markets ( http://www.researchandmarkets.com/research/rswjb4/hand_geometry ) has announced the ... Report" report to their offering. This report ... The report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... Annual estimates and forecasts are provided for the period ...
(Date:3/17/2015)... Minn. , March 17, 2015 ... technology company specializing in clinical study management systems, ... be in attendance at ARENA,s Outsourcing in Clinical ... NC.  This event provides an excellent forum for ... easy-to-use, flexible and affordable software-as-a-service (SaaS) eClinical technology ...
Breaking Biology News(10 mins):Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4Connect With MedNet Solutions At Outsourcing In Clinical Trials Southeast 2
(Date:3/31/2015)... YARDLEY, Pa. , March 31, 2015 /PRNewswire/ ... capabilities by integrating Mapi,s Medical Affairs and global ... Pharmacovigilance from a previously announced acquisition . ... operations are conducted by a global team ... professionals that have decades of experience in navigating ...
(Date:3/31/2015)... March 31, 2015 Today, Cryos International, ... relocation of their U.S. facilities and inventory from New ... years of experience, Cryos’ relocation is a reflection of ... move to Orlando was completed during the first weekend ... opening taking place on April 6. The new facility ...
(Date:3/30/2015)... , March 30, 2015  Multiple new research abstracts ... several important health factors. From their impact on colon ... positive effect on both gut health and vascular health, ... detail our latest understanding of walnuts, inner workings. Running ... , this annual meeting attracts an international audience ...
(Date:3/30/2015)... Md. , March 30, 2015 CASI ... dedicated to the acquisition, development and commercialization of innovative ... the global market with a commercial focus on ... Food and Drug Administration (CFDA) has approved the Company,s ... in ovarian clear cell carcinoma (OCCC) patients for its ...
Breaking Biology Technology:Mapi expands Pharmacovigilance and Risk Management capabilities 2Mapi expands Pharmacovigilance and Risk Management capabilities 3Cryos International Completes Groundbreaking Sperm Migration to Orlando, Florida 2New Findings Support the Benefits of Eating Walnuts on Overall Health 2New Findings Support the Benefits of Eating Walnuts on Overall Health 3New Findings Support the Benefits of Eating Walnuts on Overall Health 4CASI Pharmaceuticals Receives Approval From CFDA For Phase 2 Clinical Trial In China With ENMD-2076 For Ovarian Clear Cell Carcinoma 2CASI Pharmaceuticals Receives Approval From CFDA For Phase 2 Clinical Trial In China With ENMD-2076 For Ovarian Clear Cell Carcinoma 3CASI Pharmaceuticals Receives Approval From CFDA For Phase 2 Clinical Trial In China With ENMD-2076 For Ovarian Clear Cell Carcinoma 4CASI Pharmaceuticals Receives Approval From CFDA For Phase 2 Clinical Trial In China With ENMD-2076 For Ovarian Clear Cell Carcinoma 5
Cached News: