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:4/2/2015)... Md. , April 2, 2015 At ... Salt Lake City , the American College ... of five new directors to its Board.  Members of ... the ACMG and for forming and advancing its policies ... medical genetics profession. "It,s an eventful time ...
(Date:4/2/2015)... 2015 Fingerprint Cards (FPC) has ... from the distributor World Peace Industrial Group (WPI), part ... although the major part of the shipments will take ... by smartphone manufacturers in China . ... the communicated revenue guidance of + 1 000 MSEK for ...
(Date:4/1/2015)... Medisafe ™, the leading global medication management platform with ... Android smartphones and tablets, announces today that ... allow patients to track and correlate their adherence directly ... be able to visualize in real-time how taking medication ... glucose levels and blood pressure. "Patients need ...
Breaking Biology News(10 mins):American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 2American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 3American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 4American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 5American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 6American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 7American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 8Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2Medisafe Announces Launch of Biometric Integration, Enabling Patients to Stay Adherent to Their Meds and See Tangible Health Results 2
(Date:4/17/2015)... Global Stem Cells Group ... Summit 2015 April 27 - 29, 2015 in Boston. ... all areas of stem cell research including applications, biology, ... regenerative medicine. , The conference will address recent ... translational research in stem cell therapies, regenerative medicine, tissue ...
(Date:4/17/2015)... 17, 2015 BellBrook Labs announced ... support for the powerful Orthogonal Pooled Screening (OPS) ... Center at the Lankenau Institute for Medical Research ... to measurably improve successful drug discovery outcomes using ... rare, drug-like libraries available nowhere else, coupled to ...
(Date:4/16/2015)... and OSAKA, Japan , April ... Application (CiRA) of Kyoto University and Takeda Pharmaceutical ... work together to develop clinical applications of induced ... failure, diabetes mellitus, neurological disorders and cancer immunotherapy. ... (T-CiRA) is designed to expedite multiple research projects ...
(Date:4/16/2015)... 16, 2015 Cytokinetics, Incorporated (Nasdaq: CYTK) ... quarter results on Thursday, April 30, 2015 at 4:00 ... will host a conference call at 4:30 PM Eastern ... company’s outlook for the future. , The conference call ... the homepage and in the Investor Relations section of ...
Breaking Biology Technology:Global Stem Cells Group To Join GTCbio Stem Cell and Regenerative Medicine Summit in Boston, April 27-29, 2015 2Global Stem Cells Group To Join GTCbio Stem Cell and Regenerative Medicine Summit in Boston, April 27-29, 2015 3BellBrook Labs and Lankenau Institute Partner to Accelerate Drug Discovery using Orthogonal Pooled Screening 2CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 2CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 3Cytokinetics to Announce First Quarter Results on April 30, 2015 2Cytokinetics to Announce First Quarter Results on April 30, 2015 3
Cached News: