Navigation Links
Turtle populations affected by climate, habitat loss and overexploitation
Date:2/2/2011

PORTLAND, Ore. February 1, 2011. Fact: The sex of some species of turtles is determined by the temperature of the nest: warm nests produce females, cooler nests, males. And although turtles have been on the planet for about 220 million years, scientists now report that almost half of the turtle species is threatened. Turtle scientists are working to understand how global warming may affect turtle reproduction. To bring attention to this and other issues affecting turtles, researchers and other supporters have designated 2011 as the Year of the Turtle.

Why should we be concerned about the loss of turtles?

"Turtles are centrally nested in the food web and are symbols of our natural heritage. They hold a significant role in many cultures. For example, in many southeast Asian cultures turtles are used for food, pets, and medicine," explains Deanna Olson, a research ecologist and co-chair of the Partners in Amphibian and Reptile Conservation steering committee spearheading the Year of the Turtle campaign.

Turtles (which include tortoises) are central to the food web. Sea turtles graze on the sea grass found on the ocean floor, helping to keep it short and healthy. Healthy sea grass in turn is an important breeding ground for many species of fish, shellfish, and crustaceans. The same processes hold for freshwater and land turtles. For example, turtles contribute to the health of marshes and wetlands, being important prey for a suite of predators. The Year of the Turtle activities, include a monthly newsletter showcasing research and conservation efforts, education and citizen science projects, turtle-themed art, literature, and cultural perspectives, says Olson, a scientist with the Forest Service's Pacific Northwest Research Station.

Olson also co-authored a report, "State of the Turtle," and created a new turtle mapping project for the United States. The report is being translated into other languages for use here and around the world.

"A French translation of the report is already completed, and groups from Bangladesh and Germany signed on recently to help promote turtle conservation, and new partners join us each week," explains Olson.

Here are a few quick facts about turtles:

  • About 50 percent of freshwater turtle species are threatened worldwide, more than any other animal group.
  • About 20 percent of all turtle species worldwide are found in North America.
  • Primary threats to turtles are habitat loss and exploitation.
  • Climate change patterns, altered temperatures, affected wetlands and stream flow all are key factors that affect turtle habitats.
  • Urban and suburban development causes turtles to be victims to fast-moving cars, farm machinery; turtles can also be unintentionally caught in fishing nets.

What can be done to conserve turtle populations?

  • Protect rare turtle species and their habitats.
  • Manage common turtle species and their habitats so they may remain common.
  • Manage crisis situations such as acute hazards (i.e., oil spills) and rare species in peril.


'/>"/>

Contact: Sherri Richardson Dodge
srichardsondodge@fs.fed.us
503-808-2137
USDA Forest Service, Pacific Northwest Research Station
Source:Eurekalert  

Related biology news :

1. Study finds high mortality of endangered loggerhead sea turtles in Baja California
2. Turtle doves commit adultery
3. Revealing the evolutionary history of threatened sea turtles
4. Scientists call for protected swimways for the endangered leatherback sea turtle
5. Turtles alter nesting dates due to temperature change says ISU researcher
6. No place like home: New theory for how salmon, sea turtles find their birthplace
7. Cost of hatchling turtles dash for freedom
8. Turtles no longer turned into souvenirs
9. Scientists identify worlds largest leatherback turtle population
10. UAB research team saves turtle species on the brink
11. National Science Foundation Fellow uses ultrasound to research bog turtles
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Turtle populations affected by climate, habitat loss and overexploitation
(Date:11/22/2016)... Minn. , Nov. 22, 2016   MedNet ... supports the entire spectrum of clinical research, is pleased ... Medical LiveWire Healthcare and Life Sciences Awards ... award caps off an unprecedented year of recognition and ... trials for over 15 years. iMedNet ...
(Date:11/17/2016)... Nov. 17, 2016  AIC announces that it has just released a new white ... require high-performance scale-out plus high speed data transfer storage solutions. Photo - ... ... ... Setting up a high performance computing or ...
(Date:11/14/2016)... 14, 2016  xG Technology, Inc. ("xG" or the ... wireless communications for use in challenging operating environments, announced ... 2016. Management will hold a conference call to discuss ... Eastern Time (details below). Key Recent Accomplishments ... million binding agreement to acquire Vislink Communication Systems. The ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... (PRWEB) , ... December 08, 2016 , ... ... the FrontPanel SDK that provide essential device-to-computer interconnect using USB or PCI Express, ... require FrontPanel support. The FOMD-ACV-A4 is a small, thin, SODIMM-style module that fits ...
(Date:12/8/2016)... , ... December 08, 2016 ... ... the commercial launch of flexible packaging for their exceptionally efficient human mesenchymal ... system extends RoosterBio’s portfolio of bioprocess media products engineered to radically streamline ...
(Date:12/8/2016)...  HedgePath Pharmaceuticals, Inc. (OTCQX: HPPI), a clinical ... to commercialize innovative therapeutics for patients with cancer, ... approved for trading on the OTCQX U.S. market. ... effective today, under the ticker symbol "HPPI." ... must meet high financial standards, follow best practice ...
(Date:12/7/2016)... Diego (PRWEB) , ... December 07, 2016 , ... ... data from its phase I/II dose escalation and expansion clinical trial for its ... in Vienna, Austria. The purpose of the trial was to determine the safety, ...
Breaking Biology Technology: