by Pavel KRESTOV, Dr. Sc. (Biol.), Biological and Pedological Institute, the Far Eastern Branch of the Russian Academy of Sciences (Vladivostok) Man is prone to look into the future, and numerous scenarios of global climatic warming or cooling draw by no means an optimistic picture of the natural environment in the centuries to come. In the meantime, there have always been organisms capable of surviving in the most severe periods of global history, and therefore their record is of great value. Despite the existing climate, plant communities and whole ecosystems keep developing-those quite common some time ago and now using unique properties of their habitats or refugia (refuges). Plants and animals inhabiting such areas have retained special adaptation mechanisms not manifest under present-day conditions. Will their hour come? ICE AGE: A "WHITE SILENCE"? Vast glaciations of the Late Pleistocene on the European and North American continents were associated with climatic conditions fatal to life. During the Pleistocene maximum (18-20,000 years ago) an ice sheet up to 3,000 m thick covered almost the whole territory of Canada, thousands of kilometers of "white silence"... Only rocks of the Coast Range cut across a dead expanses in a strip of the far west of North America connecting the Cordilleras, covered with forest vegetation exuberant for that period, with "frozen" but not ice-bound North Alaska, Chukotka and now extinct Beringia. At the same time extremely severe climatic conditions in Asia made rank vegetation growth virtually impossible, as proved by polynological spectra and remains of insects home to cold desert ecosystems. The obtained paleodata gave birth to a special term for the dominant native biome, i.e. "tundra steppe". However, Pleistocene megafauna findings broke harmony of the concept. Many a finding made it possible to suggest that mammoths, wooly rhinoceros, bisons, horses and beasts of prey associated with them were n ... Read more

This publication was posted on Libmonster in another country. The article seemed interesting to our editor.

Full version:
Sweden Online · 1017 days ago 0 255
Professional Authors' Comments:
Order by: 
Per page: 
  • There are no comments yet
Library guests comments

0 votes
Sweden Online
Stockholm, Sweden
30.08.2021 (1017 days ago)
Permanent link to this publication:

Library Partners

LIBRARY.SE - Swedish Digital Library

Create your author's collection of articles, books, author's works, biographies, photographic documents, files. Save forever your author's legacy in digital form. Click here to register as an author.

Editorial Contacts
Chat for Authors: SE LIVE: We are in social networks:

About · News · For Advertisers

Swedish Digital Library ® All rights reserved.
2014-2024, LIBRARY.SE is a part of Libmonster, international library network (open map)
Keeping the heritage of Serbia


US-Great Britain Sweden Serbia
Russia Belarus Ukraine Kazakhstan Moldova Tajikistan Estonia Russia-2 Belarus-2

Create and store your author's collection at Libmonster: articles, books, studies. Libmonster will spread your heritage all over the world (through a network of affiliates, partner libraries, search engines, social networks). You will be able to share a link to your profile with colleagues, students, readers and other interested parties, in order to acquaint them with your copyright heritage. Once you register, you have more than 100 tools at your disposal to build your own author collection. It's free: it was, it is, and it always will be.

Download app for Android