Tuesday 26 March 2013
The Unstriped Ground Squirrel - Africa's Little Survivor
The
unstriped Ground Squirrel (Xerus rutilus) is a member of the
rodent family. Families and communities all live together in burrows and colonies in and around parts of Africa, like Ethiopia, Kenya, Uganda, Sudan, Somalia, Djibouti, and Eritea. They live in the dry Savanna, subtropical areas and shrub land. This ground squirrel is pretty much a vegetarian they love to eat roots, seeds, fruit, pods, grains, insects, bird eggs and small vertebrates. These squirrels will eat basically anything hanging in a tree or anything crawling around that is small enough to fit in their little mouths.
The unstriped squirrel’s status is labeled as "little concern" because it is in abundance in the African areas; it is not on the verge of extinction.
The unstriped ground squirrel weighs about .6kg which is approximately 1.3 pounds. When measured length wise they can measure 10-12 inches long. These small animals are sometimes kept as pets, but most farmers see these animals as pest to their crops.
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Monday 25 March 2013
Coypu - a Web-Footed Rodent
The
Coypu (
Myocastor coypus), a large rodent herbivore, was originally found in South America although it has been introduced to various other regions such as Africa, Europe, Asia, and North America. It was introduced predominantly for its fur. Although they were initially believed to be a valuable species, they have become largely invasive through their destructive burrowing. The animal is typically found near rivers in burrows surrounding the water and eats primarily river plants.
The coypu looks similar to a beaver or a gigantic rat and has often been mistaken for
muskrats although the muskrat is significantly smaller. The animal weighs between 5 to 9 kilograms or 11 to 20 pounds with a body between 40 to 60 centimeters or 16 to 24 inches. Their tails measure approximately 30 to 45 centimeters or 12 to 18 inches in length. The coypu has dark brown outer fur which is quite coarse and softer fur underneath. The animal is quite unique due to its white muzzle as well as its peculiar hind feet, which are distinctly webbed. In addition, female coypu have nipples which are located high on their body so that they are able to feed the young while floating.
The coypu has become extinct in many of their natural, native habitats due to hunting. Because of this, farms were established during the 19th and 20th centuries. The initial farms were established in Argentina and were later introduced in Asia, North America, and Europe. However, these fur farms have not been successful and most of the animals have been released back into the wild creating problems in the surrounding habitats due to the coypu’s excessive eating of plants, burrowing, chewing of tires and paneling on homes, as well as the destruction of irrigation systems. They are not currently considered to an endangered species. Predators of the coypu exist both on land as well as in the water. Their primary predators include alligators, red wolves, and well as wild cats.
Although they are not currently considered an overall endangered species, they do undergo periods of population reduction particularly during harsh winters. The animal is not very resilient in the cold and often undergoes frostbite in their tails which can cause infection and, potentially, death. Because of this, there are areas in which the animal has become extinct including parts of Scandinavia. However, during mild winters, the animals survive quite well particularly in areas of the northwestern United States.
Picture of the coypu by J. Patrick Fischer, licensed under the
Creative Commons Attribution-Share Alike 2.5 Generic license.
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