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:
*Name:
*Comment:
*Email:


(Date:6/22/2016)... 22, 2016   Acuant , the ... solutions, has partnered with RightCrowd ® ... Visitor Management, Self-Service Kiosks and Continuous Workforce ... add functional enhancements to existing physical access ... venues with an automated ID verification and ...
(Date:6/15/2016)... , June 15, 2016 ... report titled "Gesture Recognition Market by Application Market - Global Industry ... - 2024". According to the report, the  global gesture ... in 2015 and is estimated to grow at ... billion by 2024.  Increasing application of ...
(Date:6/2/2016)... , June 2, 2016 The ... has awarded the 44 million US Dollar project, for ... Embossed Vehicle Plates including Personalization, Enrolment, and IT Infrastructure ... leader in the production and implementation of Identity Management Solutions. ... January, however Decatur was selected for ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... THOUSAND OAKS, Calif. , Dec. 2, 2016 ... AGN ) today announced the submission of a ... for ABP 215, a biosimilar candidate to Avastin ® ... biosimilar application submitted to the EMA. "The ... milestone as Amgen seeks to expand our oncology portfolio," said ...
(Date:12/2/2016)... (PRWEB) , ... December 01, 2016 , ... ACEA Biosciences, ... its Phase I/II clinical trials for AC0010 at the World Conference on Lung Cancer ... providing an update on the phase I/II clinical trials for AC0010 in patients with ...
(Date:12/2/2016)... ... 01, 2016 , ... PhUSE will build on the huge ... Single Day Events (SDE) to organize a multiple-day US conference. The first annual ... of the pharmaceutical and life sciences industry will cover industry standards, data science, ...
(Date:12/2/2016)... ... 01, 2016 , ... Orthogonal, a Chicago-based medical device software ... II 510(k) clearance for their flagship medical device, SimplECG. , With this FDA ... that rely on cloth-based nanosensors. While other companies have attempted to focus on ...
Breaking Biology Technology:
Cached News: