Archive for December, 2006

Discovery Polar Bear Video

Comments (2) »

Animal of the day: Polar Bears Dec. 31, 06

polar-bear1.jpg

Physical Characteristics
The polar bear is the largest terrestrial carnivore. Adult males can measure more than nine feet in length and weigh between 770 and 1,430 pounds. The bear’s body and neck are elongated, and the head is narrow and long with small, rounded ears.The polar bear’s coat, covering it completely except for the nose and foot pads, is superbly adapted to Arctic environments. Along with a thick layer of body fat, the water-repellent coat insulates the bear from cold air and water. It also serves as camouflage; in fact, polar bears can sometimes pass as snow drifts. The fur is 95 percent efficient in converting ultra-violet sun rays into usable heat. Its transparent hairs have a hollow inner core which scatters ultra-violet light by some unknown mechanism, converting it into heat when it reaches the bear’s black skin. Surprisingly, the fur has no white pigment; it is the reflection of the sun that causes the fur to appear white.

Habitat and Distribution
Polar bear populations can be found in northern Canada, Greenland, Norway and Russia, and there have been reports that polar bear tracks have been found as far north as the North Pole. The five million square-mile range of the polar bear circles the Arctic and contains stretches of open water where its primary prey – seals – are easily caught.

Polar bears live on the annual Arctic sea ice that provides a platform from which they can hunt. But when the edge of the ice retreats to the north during summer, bears must follow the ice floes or become stranded on land where they must stay until the sea ice forms again in the fall.

Diet
Polar bears hunt ringed and bearded seals on the sea ice, between late April and mid-July, by breaking into seal dens in the sea ice. The dens are not visible from above, but seeing is less important than smelling to a polar bear – with their keen sense of smell, polar bears can detect the breathing holes of seals in their dens beneath the snow and ice. Plentiful access to food in this period is critical, particularly for pregnant females. As the southern edge of the arctic ice cap melts in summer, polar bears are stranded on land and spend their summers fasting, living off body fat stored from hunting in the spring and winter.

As a result of global warming, sea ice in the Arctic is melting earlier and forming later each year. Ongoing research funded by WWF is finding that polar bears are left with less time on the ice to hunt for food and build up their fat stores, and increased time on land where they must fast. As their ice habitat shrinks, skinnier and hungrier polar bears face a grave challenge to their survival.

Polar bears also prey upon harp seals, as well as young walruses and beluga whales, narwhal, fish, and seabirds and their eggs.

Reproduction
Polar bears breed in late March, April and May. The males actively seek out females by following their tracks on sea ice. They remain with the female for a short time, then leave in search of another female.

During November and December, the female digs a maternity den in a drift of snow, maintaining and enlarging the chamber as the drifts cover her, snowing her in. Soon she gives birth to twins, which cuddle in their mother’s thick fur. She ceases to feed throughout the winter and instead lives off her stored fat. Her milk, high in fat content, enables the cubs to keep warm and grow rapidly before leaving the dark den in March or April.

Short trips are made to and from the den for several days as the cubs acclimate to the outside temperatures. Then the family leaves and makes its way to the sea ice where the mother feeds and protects her cubs. The family returns to the den the next winter and remains together during the following spring and summer. After two years together, the family disperses.

Status
With about 22,000 polar bears living in the wild, the species is not currently endangered, but its future is far from certain. In 1973, Canada, the United States, Denmark, Norway and the former U.S.S.R. signed the International Agreement on the Conservation of Polar Bears and their Habitat. This agreement restricts the hunting of polar bears and directs each nation to protect their habitats, but it does not protect the bears against the biggest man-made threat to their survival: global warming. If current warming trends continue unabated, scientists believe that polar bears may disappear within 100 years. WWF funds field research by the world’s foremost experts on polar bears to find out how global warming will affect the long-term condition polar bears. To learn more about the topic, read the WWF report Vanishing Kingdom: The Melting Realm of the Polar Bear (PDF, 885k). (WWF’s report, Polar Bears at Risk (PDF, 373k), provides a more detailed analysis.)

Visit the WWF Polar Bear Tracker to track the movements of two polar bears, Samantha and Marianne, in the Barents Sea area above Svalbard, Norway and learn more about how warming and changes in sea ice affect the lives of polar bears over time.

Read more about World Wildlife Fund’s work to stop global warming and help save polar bears.

http://worldwildlife.org/polarbears/ecology.cfm

Comments (31) »

World Wildlife Fund’s Global Forces

 challenges_main.jpg

WWF is working throughout the world to save life on Earth. While we are known foremost for our success protecting endangered species and preserving wild places, we understand that in order to achieve our conservation goals, we must dedicate ourselves to addressing the global forces that have the potential to impact our living planet.

Climate change; deteriorating ocean health; toxic chemicals; an unchecked wildlife trade; deforestation; issues relating to aquaculture & agriculture; – any of these, if ignored, could have dire consequences for life on Earth. But if we work together to manage these challenges, our efforts can produce positive results that will spread throughout the web of life.

In addition to its commitment to fighting global threats, WWF has developed tools that will help us build a conservation legacy, including programs that are directed at sustainable resource management, conservation financing, and the education of future leaders.

With more than four decades of experience based on sound science, a far-reaching international network, and a history of achieving conservation results, WWF is uniquely qualified to address these challenges and ensure a living planet for future generations.

http://www.worldwildlife.org/challenges/

Comments (1) »

Endangered Species

 endangered_main.jpgFrom our start in 1961, WWF has worked to protect endangered species. We’re ensuring that the world our children inherit will be home to elephants, tigers, giant pandas, whales and other wildlife species, as well as people.
WWF safeguards hundreds of species around the world, but we focus special attention on our flagship species: giant pandas, tigers, endangered whales and dolphins, rhinos, elephants, marine turtles and great apes. These species not only need special measures and extra protection in order to survive, they also serve as umbrella species: helping them helps numerous other species that live in the same habitats.In addition to our flagship animals, we work to protect numerous species in peril around the world that live within our priority ecoregions. Large predators like snow leopards and grizzly bears, migratory species like whooping cranes and songbirds, and a host of other species facing threats also benefit from WWF’s conservation efforts. Our wildlife trade experts at TRAFFIC work to ensure that trade in wildlife products doesn’t harm a species, while also fighting against illegal and unsustainable trade.

WWF is known for acting on sound science. Science leads and guides our strategies and approaches, from the best way to restore tigers in viable, breeding populations to deciding which areas need protection the most.

http://www.worldwildlife.org/endangered/

Comments (1) »

Pandas form communities in NW China mountains

 pandas-picky.jpg

XI’AN Dec. 30 (Xinhua) — Seven panda “villages” of 10 to 20 pandas each have been found in northwest China’s Qinling mountains, said experts.

    “These panda recluses live in stone cave communities in the mountain,” said Yong Yange, director of the research institute of Foping National Nature Reserve at the foot of the Qinling mountains in northwest China’s Shaanxi Province.

    The panda breeding caves look just like a village. The black and white villagers can tell to which community a panda belongs by smelling their excrement, Yong said.

    Social life occurs within the community and the pandas seldom seek contact with other villages except when they are looking for food, Yong said.

    The villagers keep their sons but shoo away their daughters.

    When female pandas are two years old, they are driven from home to another village while sons grow up with mother and wait for “ladies” to arrive from another place, according to Yong.

    “Marrying daughters to a remote area avoids inbreeding,” Yong said. Young pandas compete — lazily enough — to decide which one will have a “beauty” from another place.

    According to Yong, the mothers enjoy two types of cave apartment — one bedroom with hall or just one big living room.

    All the caves are leeward and generally face due south or southeast.

    A mother cannot retain her room forever but must share with other villagers from the same community at different periods, Yong said.

    Further investigation is being carried out on the girl outcasts and on how the villages develop new territories when there are too many ladies, according to Yong.

    Yong’s 16-member team has been researching 99 panda caves in the Reserve since 2004.

    Future investigations will mainly focus on the structure of the stone caves.

    “If we can build new apartments for pandas like these caves, we will help panda mothers breed and increase the number of pandas in the wild,” Yong said.

    The Qinling Mountain giant pandas are a sub-species of giant pandas on the verge of extinction, said Yong.

    There are approximately 300 Qinling Mountain pandas and about 1,590 in the wild, mainly in the high mountains of Sichuan, Shaanxi and Gansu. There are 160 pandas living in captivity around the world.

http://news.xinhuanet.com/english/2006-12/30/content_5550949.htm

Comments (2) »

Boy uses birthday money to help animals

boy.jpg 

To celebrate his eighth birthday and his love of animals, Connor Robinson of Bellbrook asked his friends to give him donations in place of gifts so that he could help “Second Chance,” an animal rescue group run by the Robinson’s veterinarian, Dr. Sue Rancerello, in Bellbrook.The theme of Robinson’s birthday party was “Second Chance Rescue.” Family and friends who attended the party were greeted with dog and cat balloons, fish and dog bone sugar cookies and a cake with Zaboo’s picture on it. Zaboo is a cat Robinson rescued four years ago.

In lieu of the gifts, Robinson asked those attending to make a donation to Second Chance. He raised $115 plus food and other pet items and presented it to Dr. Rancerello last week. Robinson is a second grader at Stephen Bell Elementary.

http://www.tcnewsnet.com/main.asp?SectionID=15&SubSectionID=260&ArticleID=142693&TM=28748.18

Comments (2) »

Hello world!

Welcome to WordPress.com. This is your first post. Edit or delete it and start blogging!

Comments (1) »