Amur Tigers

[Sabre]

(10-14-2016, 08:54 AM)GrizzlyClaws Wrote: Well, Heilongjiang was the hub for the Amur tiger population for over 10,000 years. This place had rich prey base prior to the human influence. There were even bovid lived there until 2000 BC.

Follow to the analogy, Heilongjiang did produce the largest Amur population, then followed by the Russian Far East. The smallest Amur population should belong to those from the Korean peninsula.

The scientific study and subfossil evidence also support the hypothesis that the largest Amur tigers were from Heilongjiang.


"Then how come bald eagles in Florida and Arizona are smaller than bald eagles living in northern part of North America regardless of prey base?"

As we said before, the Manchurian tigers were gone, and there are only the starving Russian tigers remaining there. They might be close to the Bengal tigers in the shoulder height/body length departments, they just weigh less due having less nutrition.

Yea, but how does it proves that where in the world has the captivity Siberian tiger from the Manchuria??
Another reason could be probably geological environmental conditions of the Russian Far East. Korean peninsula and Russian Far East like Primorsky State and Ussuri Krai are steep mountains. While majority places are in Manchuria are flat woodland. Animals grow larger in flat area in general.

But I think we don't really know anything of the Siberian tiger lived in Khabarovsk, Amur, Zabaylkalsk, and Buryatia from 100 years ago. Those places environment is a lot different than Primorsky/Ussuri. More similar to the Manchuria habitat and probably colder. Majority records of the past Siberian tigers are usually Primorsky and Ussuri Krai if we are referring the Russian Siberian tiger.

Unfortunately, the Siberian tiger from Ussuri are smaller than past 1970s. I read something like gene is evolving decreasing size to the siberian. I highly doubt about this hypothesis.
But still the captivity siberian tiger is larger than captivity northern bengal tiger, central bengal tiger, lion, and any other Felidae. Reply