ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris)

[Sanju]

(03-23-2019, 09:40 AM)GrizzlyClaws Wrote: Interestingly, I am wondering if the boundary between the old strain Wanhsien tiger and the modern tiger subspecies was still quite blurred in 20,000 years ago, or everything was still in the transitional phase?

I too think the same as it is suggesting so.

More importantly, particularly at 20 to 25 kya. Something, different or like a change occurred i.e.., Last Glacial Maximum.

Quote:The Last Glacial Maximum (LGM) was the most recent time during the Last Glacial Period when ice sheets were at their greatest extent. Vast ice sheets covered much of North America, northern Europe, and Asia. The ice sheets profoundly affected Earth's climate by causing drought, desertification, and a large drop in sea levels. The ice sheets reached their maximum coverage about 26,500 years ago (26.5 ka BP).

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(see Asia)

Quote:In Asia,
There were ice sheets in modern Tibet (although scientists continue to debate the extent to which the Tibetan Plateau was covered with ice) as well as in Baltistan and Ladakh. In Southeast Asia, many smaller mountain glaciers formed, and permafrost covered Asia as far south as Beijing.

Because of lowered sea levels, many of today's islands were joined to the continents: the Indonesian islands as far east as Borneo and Bali were connected to the Asian continent in a landmass called Sundaland. Palawan was also part of Sundaland, while the rest of the Philippine Islands formed one large island separated from the continent only by the Sibutu Passage and the Mindoro Strait.

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See Tiger range map at 20 kya. https://www.researchgate.net/publication...is_a_tiger

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*This image is copyright of its original author

*This image is copyright of its original author

This rapid climate change and habitat change might have affected or influenced as well as impacted their morphology and anatomy. See the map at that, it is maximum average of 4 degree Celsius in asia and had different habitats and vegetation affecting wild ungulate prey of tiger accordingly (see that map too). Reply