Презентация на тему African lions

there is a rapid decline in the population of

African lions . According to experts , it is 30 to 50 % of the total population .
In 1950, the number of African lions is about 400 000 at the beginning of 1990 - 100,000 in 2002 - 2004 - 47 000 to 16 500 individuals.

the African lion are infectious diseases , trophy hunting

and habitat loss . The main threat - conflicts with humans. People are trying to protect pets and their own lives , often ruthlessly kill lions ( poisoned bait - a common practice to destroy them) . In addition , the West African lion isolated from lions that inhabit Central Africa . This aspect has a negative impact on reproduction and , ultimately , on the genetic diversity of the species.

A major role in maintaining populations of African lions playing the creation of national parks and game reserves . The most famous of them - Etosha National Park in Namibia , Serengeti National Park in Tanzania , and Kruger National Park in South Africa.

Reasons

An extinct subspecies of lions lived in the Pleistocene

period in Europe and Siberia. It comes almost creating the largest family of cats . For a long time nothing was known about this lion is a German physician engaged in the natural sciences , Georg August Goldfuss found the skull of a cave lion , and did not describe it. Now this subspecies became particularly distinguished from other members of this species

An extinct subspecies of lion , who lived on

the American continent in the upper Pleistocene . He was in close relationship with the also extinct cave lion (Panthera leo spelaea).

Europe about 700 000 years ago and belonged to

the subspecies Panthera leo fossilis, or, as it is called mosbahskomu lion. These ancient lions reach a length of up to 2.5 m, excluding the tail, and have a height at the withers over 130cm. If these numbers are real, then the size they were even more than the huge American lions, and could weigh under 500 kg. Extraction of these big cats are primarily large ungulates that time, such as horses, deer, bulls and antelopes.

An extinct subspecies of lion. Previously considered a regional

form of the Asian lion, or a subspecies of the Cave Lion. A detailed study of a series of lion skulls in Europe for a period of Late Pleistocene - Holocene showed a complex picture of a gradual change of cranial characteristics of the local Lions from those that attach to Pleistocene cave lion population, to those that are observed in the now surviving southern lion. Most likely, in the extinction of the Upper Pleistocene European cave lion, and global warming has cleared the way migrations from the south, and in the contact zone of the two closely related species hybridization occurred, generating intermediate forms.

known as the Atlas lion or Nubian - a

subspecies of lions . It was initially distributed in North Africa and today is extinct in the wild . Some individuals currently living in captivity , descended from Barbary lions , but representatives of purebred subspecies among them already , apparently not. In 1758 it Barbary lions were used by Carl Linnaeus to describe and