Very little scientific or historical attention has been given to main body of temperate grasslands east of Mississippi River in United States, which are a relic of a much larger grassland (Gill and others 2009). Unlike other vegetation formations, climate is unable to predict distribution or serve as a proxy for prairie (Bond 2008). Prairie occupies a broad rainfall range, from ~20omm to ~3000mm mean annual precipitation, and occurs a wide range of soils. The definition of prairie applied is inclusive and that of Lundmark (2005) and United Nations Environmental Programme, World Conservation Monitoring Centre (Coad and others 2009): temperate grasslands, savannas, and shrublands. In this paper, information from historic sources is assembled to map eastern prairie at first European contact. It concludes with a brief discussion of how understanding distribution of eastern prairie may contribute to purposes of Convention Biological Diversity. BROAD BEAUTIFUL MEADOWS The Seneca are one of five Iroquois Nations in present-day New York (Anglica Senecas) (Figure 1). In 1669, near present day Geneva, New York, Fathers Francois Dollier de Casson and Rene de Brehant de Galinee wrote: The country between lake and large village, farthest to east, to which I was going, is for most part beautiful, broad meadows, which grass is as tall as myself. In spots there are woods, these are oak plains, so open that one could easily run through them horseback. This open country, we are told, continues eastward more than a hundred leagues. Westward and southward it extends so far that its limits are unknown, especially toward south, treeless meadows are found more than one hundred leagues in length. (Kellogg 1917a, 180) In 1780, Benjamin Gilbert and his family, captives of Seneca, gave a similar account of landscape: level and beautiful meadows (Gilbert 1784). As late as 1798, Genesee County in west-central New York was open and free of timber (Williamson 1798). [FIGURE 1 OMITTED] In 1751, instructions given to Christopher Gist, surveyor of Ohio Company, were to record where there is Plenty and Timber was scarce while prairie usually ranked as a lesser priority: you are not to omit proper Observations mountainous, barren, or broken (Darlington 1893, 67). To French politician and naturalist Constantin-Frangois C. Volney, traveling in North America 1795-1797, between Laurel (Mountains) Hill and Ohio River (Figure 1) was Desert (Volney 1804, 358) or unimportant. J. P. Brissot de Warville, in his 1788 survey of America, while a few kilometers east of Cayahoga River, observed large meadows with large oaks and walnuts, and Here also is great plenty of buffalo, deer, turkies, partridges, &c. (Warville 1797, 309). Gist in his journal wrote of land near Muskingum River as rich and broken and, All way from Licking Creek to this Place is fine rich level Land, with large Meadows, fine Clover Bottoms & spacious plains covered with wild Rye: wood chiefly large Walnuts and Hickories (Darlington 1893, 42). Gist continued, the wild rye was a course, natural grass, much used for fodder by early settlers (Darlington 1893, 117). The first and only Geographer of United States appointed by Congress was Thomas Hutchins. In 1776, a survey by Hutchins along upper Ohio River (Figure 2) found on North-west and South-east sides of Ohio, below Great Kamhawa [Kanhaway or Kanawha River], at a little distance from it, are extensive natural meadows, or Savannahs. These Meadows are from 20 to 50 miles in circuit. They have many beautiful groves of trees interspersed, as if by art, and serve as shelter for innumerable herds of buffaloe, Deer, &c.. (Hutchins 1787, 7). North of Ohio River, either side of Sikader (Scioto) River, was open grassland. …
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