Showing posts with label Primate. Show all posts
Showing posts with label Primate. Show all posts

Saturday, July 16, 2011

Red Uakari Monkey Habitat and Populations

The Red Uakari monkey has a bald head and a bright red face. They have long shaggy coats that change from reddish brown to orange. Red Uakari monkeys are mammals and they are herbivores. The Red Uakari’s size is 14.0 to 22.5 inches and its weight is 4.4 to 6.6 lbs. The lifespan is 15 to 20 years. They have very short tails and can move easily up the trees without using their hands or legs. They also live in groups called troops and are very social. The crown of the monkey is whitish yellow. They aren’t good at leaps.

Red Uakari monkey
  
Habitat:
At night they sleep high in the trees. Their home (habitat) is being cut down (trees are their homes). They like water, swamps, and streams. They live in trees and only go to the ground to feed. They live in South America, Amazon Basin of Colombia, Brazil and Peru. They live in the understory and the canopy of the rain forest.

Food:
They eat lots of fruits and their powerful jaws can open a hard Brazil nut. They gather their food from the trees. They eat some leaves and insects. They will only go to the ground to find fallen seeds or roots.
Also they sometimes eat small animals.

Reproduction:
Females only give birth to 1 baby every 2 years. The mother is usually 3 years old and the father lives for 6 years. The female can live to be 11 years old and the maximum age is 23 years old.


Red Uakari monkey

Predators and Prey:
They are hunted for food by humans. This monkey has become very rare because hunters are over hunting. They usually survive for very short times in captivity.

Behavior:
They live in large groups of 15 -30 monkeys. Also, you can sometimes see up to 100 together. They spend most of their time in the treetops.


Red Uakari monkey


Their Sounds:
These vocal communication calls help Red Uakari adapt to the environment. Each call has a different sound and meaning. For an example the “chick” is a call heard when there is a loud noise and predators in the area.

Sunday, June 5, 2011

Cloud Rats Habitat and Conservation Philippines

Cloud rats are gentle and lovely rodents found only in the Philippine. Six species of cloud rats in habitat the Philippine. These are the Northern Luzon slender-tailed cloud rat (Phloeomys pallidus), Southern Luzon slender-tailed cloud rat (Phloeomys cumingi), giant bushy-tailed cloud rat (Crateromys schadenbergi), Ilin Island cloud rat (Crateromys paulus), Dinagat Island cloud rat (Crateromys australis) and Panay Island bushy-tailed cloud rat (Crateromys heaneyi). The Panay bushy-tailed cloud rat and the Ilin-hairy tailed cloud rat are extremely endangered while the Ilin hairy-tailed cloud rat found only in the Ilin Island south of Mindoro is on the verge of extinction. Others claim it is already extinct. The smallest is the Crateromys paulus.

Cloud Rats

The Phloeomys cumingi and Phloeomys pallidus are still off the endangered list because there is still a healthy population of these species in the wild. Unlike their parasite and disease carrying cousin rats in urban places, cloud rats are forest dwellers. They are slow moving creatures but are excellent tree climbers. Cloud rats are nocturnal creatures spending most of the day sleeping in the hole of large trees. Their diet is simple consisting mostly of tender young leaves, bananas, guavas, and young corns (Novak, 1999). Survival of cloud rats is threatened by hunting and wide scale deforestation. Cloud rats are usually hunted for their meat, which is a favorite finger food or pulutan during drinking session in rural areas. Others keep them as pets. Cloud rats are among the wildlife species protected by the Haribon Foundation for the Conservation of Natural Resources a member of the World Conservation Union with linkages with a number of conservation groups nationally and internationally.


Cloud Rats
Basic studies on the biology and health aspects of cloud rats should be encouraged to complement various
on-going conservation measures. In the Philippines, Maala and Arreola (1996) described the hair cuticles of the cloud rat from those of flying lemur and Philippine monkey by means of scanning electron microscopy. Based on the result of their study the three species could be differentiated from each other through the cuticular patterns of their hair. A study on the anatomy of the cloud rat is presently undertaken at the Institute of Biological Sciences, University of the Philippines Los Banos.

Golden-headed Langur or Cat Ba Langur Habitat In Vietnam

The Golden-headed langur, Trachypithecus p. poliocephalus, is probably the most endangered of the Asian colobines. This sub-species occurs only on the Island of Cat Ba in the Gulf of Tonkin, northeastern Vietnam. The Cat Ba Archipelago is in the worldfamous Ha Long Bay, a spectacular karst formation that was invaded by the sea. The golden-headed langur inhabits tropical moist forest on limestone karst hills, and shares this habitat preference with the other six to seven taxa of the T. francoisi group. These so called karst langurs, including the Cat Ba langur and its closest relatives, the white-headed langur, T.p. leucocephalus Tan, 1955, in southern China, display strict behavioral adaptations to their karst habitat.

Golden-headed Langur or Cat Ba Langur

There are no systematic and reliable data available on the historic density of the langur population on Cat Ba Island. According to reports of indigenous people the entire island of Cat Ba (140 km2) and some smaller offshore islands were previously densely populated by langurs. Hunting has been the sole cause for the dramatic and rapid population decline from an estimated 2,400–2,700 in the 1960s to only 53 individuals by 2000. The langurs were poached mainly for trade in traditional medicines. Since the implementation of strict protection measures towards the end of 2000, the langur population on Cat Ba Island increased to current 60–70 individuals.

Although the growth of the population is encouraging, the overall status of the sub-species is most critical. As a result of habitat fragmentation, the remaining population is now divided into seven isolated sub-populations, probably only four of which include males, while the others are all-female groups and thus non-reproducing social units. The total reproductive output in this species is accordingly low. Since a peak in births in 2003, the reproductive output of the Cat Ba Langur has stagnated at 1-2 offspring per year.

Golden-headed Langur or Cat Ba Langur

Cat Ba Island and the surrounding area are nationally and internationally recognized for their importance to biodiversity conservation. Cat Ba National Park was established in 1986. It presently covers more than half of the main island. The Cat Ba Archipelago (some 1,500-2,000 large and small islands, cliffs and rocks) was designated a UNESCO Man and the Biosphere Reserve in 2004. Despite this, nature and wildlife protection
on Cat Ba Island is deficient, though awareness as well as partnership and commitment with the local
communities are slowly increasing.

However, efforts to effectively conserve the langurs and their habitat face major obstacles due to the need to better address the local community’s aspirations for development, and due to the steadily increasing human population, besides persistent, severe deficiencies in law enforcement. As elsewhere in the region, poaching is driven by increasingly attractive commercial gains in satisfying the immense local and regional demand for wildlife and animal parts. The strictest protection regime possible is necessary for the survival of all the mammals and other species on Cat Ba that are, like the langurs, targeted by the Asian wildlife trade.