Sibirische Tiger (Panthera tigris altaica) (XII)
Harbin - Heilongjiang province - China
Siberian tigers are known to travel up to 1,000 km (620 mi), a distance that marks the exchange limit over ecologically unbroken country.[9]
Sikhote-Alin in Primorsky Krai
In 1992 and 1993, the maximum total population density of the Sikhote-Alin tiger population was estimated at 0.62 tigers in 100 km2 (39 sq mi). The maximum adult population estimated in 1993 reached 0.3 tigers in 100 km2 (39 sq mi), with a sex ratio of averaging 2.4 females per male. These density values were much lower than what had been reported for other subspecies at the time.[29]
In 2004, dramatic changes in land tenure, density, and reproductive output in the core area of the Sikhote-Alin Zapovednik Siberian Tiger Project were detected, suggesting that when tigers are well protected from human-induced mortality for long periods, the density of female adults may increase dramatically. When more adult females survived, the mothers shared their territories with their daughters once the daughters reached maturity. By 2007, density of tigers was estimated at 0.8±0.4 tigers in 100 km2 (39 sq mi) in the southern part of Sikhote-Alin Zapovednik, and 0.6±0.3 tigers in 100 km2 (39 sq mi) in the central part of the protected area.[30]
Siberian tigers share habitat with Amur leopards, but in the Changbai Mountains have been recorded more often in lower altitudes than leopards.
https://en.wikipedia.org/wiki/Siberian_tiger
Claudio Micheli 13/01/2019 20:54
Bellissima!Ciao