The Siberian tiger cat genus Leopard, also known as the Siberian tiger or Amur tiger, is one of the subspecies of the tiger and is the largest tiger in the world.
At the same time, when the Siberian tiger is in the cold, there are three treasures on the body, that is, long hair, short legs, and sticking to the autumn fat, as a cat that is now large, they have four disproportionately long and short legs, which is very similar to Allen's law (under the same volume) The shorter the limbs, the smaller the surface area of the body, the less the heat loss, the #东北虎 #
And in the autumn, in order to reserve the fat for the winter in advance, the Siberian tiger needs to frantically paste the autumn fat, but if it is too much, it becomes a large orange cat with more than 500 pounds, so the Siberian tiger generally has occasionally unintelligible operations in the autumn, but it is not necessary but he is just preparing for the winter
Siberian tigers themselves do not have a particularly strong preference for habitat, as long as they are far away from human-infested areas, the snow is not too deep in winter, there is relatively dense vegetation to ambush, and the terrain is not too steep. Their habitat selection is more based on their preference for prey and habitat selection, and the most preferred habitat of large prey such as the red deer is the mixed korean pine-broad-leaved forest mixed with many interforest clearings, followed by oak forests; because in these forests, herbivores can either find a large number of herbaceous plants in the forest clearings, but also collect pine nuts, acorns and mushrooms in mature forests. So these two forest types are also the favorite habitats of Siberian tigers.
Since the 1930s, the population in the Russian Far East has dropped to 20-30 individuals. According to the comprehensive population survey in 2005, by 2010, it was estimated that only 360 Siberian tigers remained in Russia. And 13 years of monitoring data show a significant decline in populations, with the downward trend more pronounced since 2004, although tiger populations rebounded in 2010. Poaching tigers and their wild prey is thought to be responsible for the decline in tiger populations.
In addition, extensive genetic sampling of 95 wild Siberian tigers found that their genetic diversity was significantly lower, and the effective population (Ne) was extremely low compared to the census population (N) (Henry et al. 2009). This shows a population bottleneck in the 1940s and is consistent with the low survival rate of young documented in the Russian Far East, and the populations in the Sikhote Arin Mountains are artificially isolated from the populations of the southern coastal region
There are many reasons for his endangerment, including habitat destruction and poaching, which has led to the extinction of large prey such as the red deer on which he depends. At the same time, the direct poaching of tigers in Russia and the accidental injury of tigers by a large number of unsealed hunting holsters in China. And due to human activities, habitat destruction and other factors, the distribution area of the Siberian tiger is divided into multiple isolated "islands", the lack of genetic communication between the distribution areas, and even some distribution areas have only one individual and cannot reproduce
The tiger is part of the natural heritage of the human planet and is a symbol of the planet's biodiversity. They are key species that are critical to the integrity of the ecosystems in which they live.
As top predators, they control prey populations, maintaining a balance between herbivores and the vegetation on which they depend. In short, when tigers thrive, the entire ecosystem thrives. This, in turn, provides important economic, cultural and spiritual benefits to local communities that live with or close to tigers.
So as one of the most cherished animals in the world, please join us in the protection of Siberian tigers.