Friday, June 1, 2012

Defination of rare plants and animals

Simply,Rare plants and animals are those whose number or frequency is less or in under threat of danger in comparision of others species(plants and animals). An endangered species is a native species that faces a significant risk of extinction in the near future throughout all or a significant portion of its range. Such species may be declining in number due to threats such as habitat destruction, climate change, or pressure from invasive species.
The term endangered species can be used either in general or legal context. When used in a general sense, the term describes a species that faces a risk of extinction but does not necessarily indicate that the species is protected under any law. When used in a legal context, the term refers specifically to a species that is listed on the US Endangered Species List and is defined legally as an animal or plant species in danger of extinction throughout all or a significant portion of its range.
      Generally, an endangered species is an organism in danger of disappearing from the face of the earth if its situation is not improved.

When its race has not been seen in the wild for over fifty years, we say that it is extinct. Those species that may soon become endangered are called threatened species. Rare animals are species with small populations that may also be at risk.                                                   

         In the United States of America, the Endangered Species Act of 1973 was created to protect endangered species and the habitats on which they depend. This piece of legislation established two degrees of endangerment: immediate risk and threatened. For example, endangered species such as the one horned rhinoceros are at immediate risk of extinction and probably cannot survive without direct human intervention.
         The World Conservation Union (IUCN) is a nongovernmental organization collecting global information on endangered species. It has established similar categories of endangered species, but refer tothem as critically endangered, endangered, and vulnerable. Some chinese rare plants
Cotinus coggygria Young Lady (above)
An exciting new ‘smoke bush’ grown for its prolific flowering. Most Cotinus are grown for their brilliant autumn colours or rich purple leaves in summer. This variety will flower on every tip completely covering the bush in a mass of lovely smoky, white tinted pink flowers. Even young plants are heavily flowered.
Liriope muscari Emerald Cascade (above)
This seedling was raised from Chinese seed by Don Teese many years ago. It is densely 

The 10 Rarest Animals in the World

Endangered, hunted, smuggled and now some would say abandoned, these animals have the smallest chances of recovery out off all the Earth’s creatures. Last year, studies shown  that there are at least 35 different animals with world populations of under 1000. But which are the rarest, the animals on the brink of extinction? We have rounded up a list of 10 of the rarest animals in the wild. These animals are so rare, they might disappear forever, and they’re not alone!
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1. The Pinta Island tortoise – Without argument, this turtle is one of the few species of Giant Galapagos tortoises and the rarest animal in the world since there is only one left alive. Lonesome George is the sole surviving member of the Pinta Island race, the giant tortoise being a symbol for the fragility of the Galapagos islands, and a constant reminder for vigilence and conservation of the species. The species was considered extinct until 1971, when a lone example was located by rangers. Since then, the Charles Darwin Research Station has been searching for a female tortoise, even posting a reward of $10,000 to those that find one.
2. Baiji (Yangtze River Dolphin) – With no more than a few tens of individuals, Yangtze River Dolphinthe dolphin is one of the world’s rarest mammals, and a victim of China’s breakneck economic growth, competing for food with the human beings. It has been driven to extinction due to the activity in 50 years, this being the fourth time when an entire evolutionary line of mammals has vanished from the face of the Earth since the year 1500. The main reason for this fact are the numerous dams and barrages, built starting in the 1930’s, that have fragmented the population and reduced the amount of available habitat. There are news that the species is functionally extinct, experts still searching for members of the species. Fingers crossed!
3. The Vancouver Island Marmot – This marmot is found only in the high mountainous regions of Vancouver Island, in British Columbia, the Canadian Species at Risk Act listing it as endangered in May 2000. In 1998, the population reached an all-time low of 75 individuals, a captive breeding programme being started during that time. In captivity, there are around 90 Vancouver Island marmots in four breeding facilities, while an estimated 30 members of this species live in the wild ibn 2004. The ultimate goal is to restore a sustainable population of 400-600 Vancouver Island marmots in the wild, so there’s still much to be done. 2005 was a successful year, with 150 individuals in captivity and over 44 pups born.
4. Seychelles Sheath-tailed Bat – Inhabiting the central granitic islands of the Seychelles Islands north of Madagascar,Seychelles Sheath-tailed Bat the bat is part of our list, being one of the most endangered animals since fewer than 100 are believed to exist in the world. It was once commonly found in Seychelles, but the species has undergone a dramatic decline in population during the mid to late 20th century. More research needs to be done in order to understand how the species behave and what needs to be done in order to save them. Scientists believe that, with a heavy amount of effort, 500 individuals may be sufficient to guarantee long-term persistence of the population.
5. Javan Rhino – This scarce animal is one of the rhino species with fewer than 60 animals surviving in only two known locations: one in Indonesia and the other in Vietnam. Though once widespread throughout Asia, by the 1930’s the rhinoceros was nearly hunted to extinction in Peninsular Malaysia, India, Burma and Sumatra. It was poached for its horn, that is believed to have medicinal uses, and driven to extinction to the intense agricultural practices. Even with all the conservation efforts, the Javan rhinoceros’ chance of survival is small: the population is reduced, hence there are risks of disease and inbreeding.
6. Hispid hare – Also called the “bristly rabbit”, this hare has been recorded along the southern foothills of the HimalayanHispid hare mountain chain, Nepal, , Bengal, and Assam. Deforestation, cultivation, and human settlement had the most negative impact on the species, isolating the rabbits in Uttar Pradesh, Bihar, West Bengal and Assam. This animal was feared extinct in 1964, but in 1966, one was spotted. There were an estimated 110 hispid hares worldwide in 2001, numbers continuing to plunge due its unsuccessful adaptation to captivity.
7. Northern Hairy-nosed Wombat – In the 19th century this species of wombat was present in New South Wales and Victoria but now can only be found in a small national park near Epping Forest Station in tropical Queensland. While this area has been protected as a National Park, the native grasses that the wombat eats are overtaken by non-indigenous plants. The Northern hairy-nosed wombat is the rarest Australian marsupial, and probably the world’s rarest large mammal. In the latest population study, there are an estimated 113 (range 96 to 150) individual. A major recovery program is underway, funded by the Queensland and Commonwealth governments to the tune of $250,000 per year.
8. Tamaraw (Dwarf Water Buffalo) – Found in the the island of Mindoro in the Philippines, the tamaraw is the onlyDwarf Water Buffalo endemic Phillipine bovine. In 1900 there were an estimated 10,000 tamaraw on Mindoro, 120 in 1975, 370 in 1987 . It was declared critically endangered species in 2000 by the World Conservation Union and remained so until today, being threatened by agriculture, hunting or disease brought by domestic species. The current population was estimated in 2002 at a number between 30 and 200 individuals. Although protected by law, the illegal capture and killing of this species continues to occur.
9. Iberian Lynx – The Lynx, the most endangered of the world’s 36 cats, stands on the edge of extinction. This lynx was once distributed over the entire Iberian Peninsula but now its area is severely restricted in Andalusia. Threatened by destruction of habitat and of its prey, the cat was killed by traps set for rabbits or hit by cars as the number of roads increase. The Spanish Government is now in the process of developing a national conservation effort to save the Iberian Lynx. Studies from March 2005 have estimated the number of Lynx to be as few as 100, down from about 400 in 2000. On March 29, 2005, the birth of 3 cubs, the first born in captivity, was announced, a hope for the future reintroduction of the species.
10. Red Wolf – This wolf is a smaller and a more slender cousin of the gray wolf, historically ranging from southeasternRed Wolf United States to Florida and Texas. Now, their home is the 1.7 million acres throughout northeastern North Carolina, including Alligator River National Wildlife Refuge and Pocosin Lakes National Wildlife Refuge. Only 20 pure red wolves were estimated in 1980, however the number increased to 207 captive red wolves, found in 38 captive breeding facilities across the United States. With the successful breeding programs, over 100 red wolves currently live in the wild.
Runner-up. Dwarf Blue Sheep – The Dwarf Blue Sheep or Dwarf Bharal Pseudois schaeferi is an endangered species of caprid found in China and Tibet. The dwarf blue sheep population in the world has declined to a total of 70–200 individuals, currently being listed as endangered by the International Union for Conservation of Nature. The species is hunted, and in their limited range cannot escape from humans and livestock. As of 1997, China did not recognize them as a seperate species so efforts to conserve the species have not been initiated. and strongly weeping form. It is hardy in sun or shade though will bronze a bit in severe sun. It will even live indoors for extended periods. It is so hardy and densely clothed, my dog used to sleep on it in the sun with no damage. The flowers are hidden in the foliage and are followed by intensely turquoise - blue berries.
Superb in a tub where it weeps down over the edges. Or as a border plant over a rock wall or bank.

!O Rare Plants in the World