HOME >> BIOLOGY >> NEWS
Organgutan numbers plummeting worldwide; species may vanish in ten years, study says

NEW YORK -- The orangutan - the only great ape found in Asia - may vanish from the wild within a decade, unless illegal logging of its habitat and poaching can be greatly reduced, according to research funded by the Bronx Zoo-based Wildlife Conservation Society (WCS).

The study, which appears in the current issue of the journal Oryx, documents the tremendous decline in orangutans throughout their range. The Leuser Ecosystem in northern Sumatra, Indonesia, which supported 12,000 orangutans in 1993 -- the largest population in the world -- lost nearly half its animals over a seven year period. In 1998 and 1999, losses occurred at around 1,000 animals per year.

"The alarming decline in Leuser's orangutan numbers implies that the world's largest natural orangutan population will be extinct in a decade or so, unless the current trend is stopped," said the study's lead author, Dr. Carel van Schaik, a WCS research associate from Duke University who has studied wild orangutans for more than 20 years.

Ironically, the Leuser Ecosystem includes Sumatra's largest protected area, Leuser National Park, where rampant logging is backed by the Indonesian military and police. "All remaining forests that are accessible by road or river are subject to a seemingly unstoppable pandemic of illegal logging, regardless of their protection status," van Schaik said.

Van Schaik found that orangutan densities decreased more than 60 percent in areas that have been selectively logged, due mostly to a decline in trees that produce fruit - a critical food source for orangutans - as well as the loss of canopy trees they use for travel. The rampant illegal logging that inevitably follows selective cutting in Leuser and other areas, has caused densities to drop as much as 90 percent. Many areas are subsequently turned into massive agricultural estates, and therefore do not regenerate into forest.

"Unfortunately, selective logging is rarely followed by the 30-to-40 year rest
'"/>

Contact: Stephen Sautner
ssautner@wcs.org
718-220-5197
Wildlife Conservation Society
25-Feb-2001


Page: 1 2 3

Related biology news :

1. East Texas feral hog numbers skyrocketed in last decade
2. As Vitamin B-6 levels go down, numbers of DNA strand breaks go up
3. Crash in male saiga antelope numbers drives species closer to extinction
4. Even neurons have favorite numbers
5. Scientists develop markers capable of detecting minute numbers of cancer cells in blood
6. Summer of the Shark in 2001 more hype than fact, new numbers show
7. Animals regulate their numbers by own population density
8. The hair of the bear: USGS releases grizzly bear numbers in Glacier National Park
9. Worlds largest-ever sea turtle symposium to address plummeting populations of sea turtles
10. A test case for DNA barcodes to identify species
11. Hidden diversity: DNA barcoding reveals a common butterfly is actually 10 different species

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/14/2017)... (NYSE: IBM ) is introducing several innovative partner startups ... collaboration between startups and global businesses, taking place in ... nine startups will showcase the solutions they have built with ... France is one of the ... percent increase in the number of startups created between 2012 ...
(Date:5/16/2017)... 16, 2017   Bridge Patient Portal , ... MD EMR Systems , an electronic medical ... GE, have established a partnership to build an ... the GE Centricity™ products, including Centricity Practice Solution ... These new integrations will allow healthcare delivery ...
(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... platform specifically designed for life science researchers to analyze and interpret datasets, ... Franklin, who made a major contribution to the discovery of the double-helix ...
(Date:10/11/2017)... ... ... Personal eye wash is a basic first aid supply for any work environment, but most ... you rinse first if a dangerous substance enters both eyes? It’s one less decision, and ... unique dual eye piece. , “Whether its dirt and debris, or an acid or alkali, ...
(Date:10/11/2017)... , Oct. 11, 2017  VMS BioMarketing, a leading ... a nationwide oncology Clinical Nurse Educator (CNE) network, which will ... need for communication among health care professionals to enhance the ... nurses, office staff, and other health care professionals to help ... breast cancer. ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... implantation and pregnancy rates in frozen and fresh in vitro fertilization (IVF) ... and maternal age to IVF success. , After comparing the results from the ...
Breaking Biology Technology:
Cached News: