Study documents decimation of critically endangered forest elephant
2013-03-29
(Press-News.org) African forest elephants are being poached out of existence. A study just published in the online journal PLOS ONE and supported in part by San Diego Zoo Global shows that a staggering 62% of all forest elephants have been killed across their range in central Africa, for their ivory over the past decade. The severe decline indicates what researchers fear is the eminent extinction of this species.
"Saving the species requires a coordinated global effort in the countries where elephants occur, all along the ivory smuggling routes and at the final destination in the Far East. We don't have much time," say Wildlife Conservation Society conservationists Fiona Maisels, PhD, and Samantha Strindberg, PhD, the lead authors.
The study—the largest ever conducted on the African forest elephant— includes the work of more than 60 scientists between 2002 and 2011, and an immense effort by national conservation staff who spent a combined 91,600 days surveying elephants in 5 countries (Cameroon, Central African Republic, the Democratic Republic of Congo, Gabon and the Republic of Congo), walking over 13,000 kilometers (more than 8,000 miles) and recording over 11,000 elephant dung piles for the analysis.
The paper also shows that almost a third of the land where African forest elephants were able to live 10 years ago has become too dangerous for them. Results show clearly that forest elephants were increasingly uncommon in places with high human density, high infrastructure density such as roads, high hunting intensity, and poor governance as indicated by levels of corruption and absence of law enforcement.
Bethan Morgan, PhD, head of San Diego Zoo Global's Central Africa Program, stressed the importance of this study. "This is the largest collaborative study of its kind across the whole of Central Africa and really highlights the plight of this ecologically important species. Forest elephants are integral to a functioning forest in Africa, opening up the forest floor and acting as a vital part of the life cycle of many plant species through their role as seed dispersers. We have increasing evidence of a decline in certain tree species as a result of the local extinction of forest elephants."
Distinct from the African savanna elephant, the African forest elephant is slightly smaller than its better-known relative and is considered by many to be a separate species.
Research carried out by the CITES-MIKE program has shown that the increase in poaching levels across Africa since 2006 is strongly correlated with trends in consumer demand in the Far East and that poaching levels are also strongly linked with governance at the national level and poverty at the local level. This has resulted in escalating elephant massacres in areas previously thought to be safe.
###
The San Diego Zoo Global Wildlife Conservancy is dedicated to bringing endangered species back from the brink of extinction. The work of the Conservancy includes onsite wildlife conservation efforts (representing both plants and animals) at the San Diego Zoo, San Diego Zoo Safari Park, San Diego Zoo Institute for Conservation Research, and international field programs in more than 35 countries. In addition, San Diego Zoo Global manages the Anne and Kenneth Griffin Reptile Conservation Center, the Frozen ZooTM, Native Seed Gene Bank, the Keauhou and Maui Hawaii Endangered Bird Conservation Centers, the San Clemente Loggerhead Shrike Breeding Facility, the Cocha Cashu Biological Research Station, the Desert Tortoise Conservation Center, and a 800-acre biodiversity reserve adjacent to the San Diego Zoo Safari Park. The important conservation and science work of these entities is supported in part by The Foundation of the Zoological Society of San Diego.
CONTACT:
SAN DIEGO ZOO GLOBAL
PUBLIC RELATIONS
WEBSITE: http://www.sandiegozooglobal.org
ELSE PRESS RELEASES FROM THIS DATE:
2013-03-29
PASADENA, Calif.—Chemists at the California Institute of Technology (Caltech) and the Lawrence Berkeley National Laboratory believe they can now explain one of the remaining mysteries of photosynthesis, the chemical process by which plants convert sunlight into usable energy and generate the oxygen that we breathe. The finding suggests a new way of approaching the design of catalysts that drive the water-splitting reactions of artificial photosynthesis.
"If we want to make systems that can do artificial photosynthesis, it's important that we understand how the system ...
2013-03-29
Bacteria appear to speed up their evolution by positioning specific genes along the route of expected traffic jams in DNA encoding. Certain genes are in prime collision paths for the moving molecular machineries that read the DNA code, as University of Washington scientists explain in this week's edition of Nature.
The spatial-organization tactics their model organism, Bacillus subtilis, takes to evolve and adapt might be imitated in other related Gram-positive bacteria, including harmful, ever-changing germs like staph, strep, and listeria, to strengthen their virulence ...
2013-03-29
A team of researchers, led by a University of California, Davis, plant scientist, has identified a lettuce gene and related enzyme that put the brakes on germination during hot weather — a discovery that could lead to lettuces that can sprout year-round, even at high temperatures.
The study also included researchers from Arcadia Biosciences and Acharya N.G. Ranga Agricultural University, India.
The finding is particularly important to the nearly $2 billion lettuce industries of California and Arizona, which together produce more than 90 percent of the nation's lettuce. ...
2013-03-29
A new study from the Wildlife Conservation Society (WCS) and the Nevada Department of Wildlife (NDOW) has pieced together the last 150 years of history for one of the state's most interesting denizens: the black bear.
The study, which looked at everything from historic newspaper articles to more recent scientific studies, indicates that black bears in Nevada were once distributed throughout the state but subsequently vanished in the early 1900s. Today, the bear population is increasing and rapidly reoccupying its former range due in part to the conservation and management ...
2013-03-29
It looks like 2013 will be a thrilling season for baseball fans as four of the six divisions can be expected to deliver tight races, says baseball guru NJIT Associate Professor and Associate Dean Bruce Bukiet. Over the years, Bukiet has applied mathematical analysis to compute the number of regular season games each Major League Baseball team should win. Though his expertise is in mathematical modeling, his projections have compared well with those of so-called experts.
The numbers indicate that only one game might separate the first and second place teams in both ...
2013-03-29
PHILADELPHIA — A new diagnostic test that uses a scientific technique known as metabolomic analysis may be a safe and easy screening method that could improve the prognosis of patients with pancreatic cancer through earlier detection.
Researchers examined the utility of metabolomic analysis as a diagnostic method for pancreatic cancer and then validated the new approach, according to study results published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.
"Although surgical resection can be a curative treatment ...
2013-03-29
Los Angeles, CA (March 28, 2013) While compared to men, women continue to be underrepresented in math and science courses and careers, is this disparity a true reflection of male and female student ability? According to a study to be released tomorrow in Psychology of Women Quarterly, a SAGE journal, male and female students earn similar grades in math and science while Asian American students of both genders outperform all other races.
Researchers Nicole Else-Quest, Concetta Mineo and Ashley Higgins studied 367 White, African American, Latino/Latina, and Asian American ...
2013-03-29
The Gastropoda, more commonly known as snails and slugs, are a large group of animals within the phylum Mollusca. Gastropоds species are extremely diverse in forms and sizes, ranging from microscopic to large. About 50 species of snails are currently considered to inhabit Skadar Lake, the largest on the Balkan Peninsula. The Bojana River connects the lake with the Adriatic Sea, and the Drin River provides a link with the Ohrid Lake.
Scientists Vladimir Pešić from the University of Montenegro and Peter Glöer from the Biodiversity Research Laboratory have ...
2013-03-29
A specially-adapted 'tactile helmet', developed by researchers at the University of Sheffield, could provide fire-fighters operating in challenging conditions with vital clues about their surroundings.
The helmet is fitted with a number of ultrasound sensors that are used to detect the distances between the helmet and nearby walls or other obstacles. These signals are transmitted to vibration pads that are attached to the inside of the helmet, touching the wearer's forehead. Rescue workers, such as fire-fighters, who might be working in dark conditions or in buildings ...
2013-03-29
A research coordinated by the scientists at SISSA of Trieste has now developed and studied a numeric model of the chromosome that supports the experimental data and provides a hypothesis on the bundle's function.
A chromosome spends most of its life "diluted" in the nuclear cytoplasm. To the untrained eye it may look like a randomly entangled thread, yet biologists claim the opposite: although a chaotic component does exist in the bundle, experimental measurements have identified regions that tend to contain specific genes. Thanks to such measurements, researchers have ...
LAST 30 PRESS RELEASES:
[Press-News.org] Study documents decimation of critically endangered forest elephant