This newspaper comprehensive foreign media reports According to the official website of the official website of the University of Illinois, the University of Illinois，The school's historical professor Robert Morrissey published the first comprehensive environmental history of the high grasslands ecological shaping the American Indian tribe culture "The People in Ecological Zone"。This book from the perspective of climatic history，Telling how the changes in the ecological environment affect the prosperity Bet365 lotto review and decline of the Indian tribe in the United States。

The Gao Prairie in the Midwest of the United States is located between the forest and the grassland，It is one of the important border areas of Indians developing culture and ecology in the early history of the United States。Earth temperature gradually decreased from the 14th century，The changes in climate cause the coverage of the grassland to expand，Direct climate makes the grass more likely to be digested by animals，Coupled with the Indian tribe to expand the grass area by incineration，caused a large number of bison groups to migrate to the eastern grassland。

Moriti thinks，The new ecological environment promoted by climate change has changed the labor organization method and labor requirements of the Indian tribe。mid -13th bet365 best casino games century，The Indians gave up the grain -based agricultural civilization and centralized settlement method，Create a smaller -scale decentralized village，Life with walking hunting wild bison。At the same time，Indians migrated to the grassland of the Gaogura began to attack the surrounding tribes frequently，Fill the labor force by plundering captives。

French colonists discovered the market value of wild cowhide，Constantly recruiting the Indians' Congress hunting wild bison、Make animal skin。Moriti said，The "bison economy" after the expansion of scale has increased the demand for the laborers of the high grassland captives。​​Indian tribes soon see that switching in European guns and ammunition、The Bet365 app download possibility of establishing strong forces with military affairs。Frequent captives and bull competition have exacerbated the contradiction between the tribe，Treating the Fox War in 1712。Moriti thinks，The historical narrative under the perspective of the European center exaggerated the role of the French in this white and Indian conflict; the French created the wilderness market，But it is not the only promoter of the Fox War。Fox War has reduced the Indian population of the Eastern Prairie。mid -19th century，The climate changes again，The Western Plain in the United States has become a new habitat for bulls;，opened a new wild leather trading center。

Moriti hopes to show the ecological diversity of the high grassland area through this book，bet365 best casino games Digging climate change into the contact motivation brought by European colonists and Indian tribes in the early days、Development opportunities and conflict background，Challenge American historical narrative under the perspective of European centralism。

(Liu Yuwei/Compilation)