By Charles W. Heckman

ISBN-10: 9048149576

ISBN-13: 9789048149575

ISBN-10: 9401734232

ISBN-13: 9789401734233

There are many well-known wetlands on the planet which have been deemed vital for the homeostasis ofthe biosphere and accorded a few shape ofprotected prestige in view of the richness in their natural world. T}1e Pantanal, situated nearly at once within the middle ofthe South American continent, is likely one of the biggest such wetlands on this planet. it truly is, in truth, the most important wetland that continues to be in an almost normal nation and has now not been broadly transformed by way of guy for agriculture. the level of the area coated by way of flood waters on the finish of every wet season varies from 12 months to yr, occasionally significantly, so estimates of the precise quarter it occupies have various drastically. the dimensions of the two 2 Pantanal has been said to be among 80,000 km (Bonetto, 1975) and 250,000 km (Tundisi and Matsumura-Tundisi, 1985). the main co~on1y authorised estimates this day are nearly 130,000 to 140,000 km , supported via estimates made up of Nimbus-7 satellite tv for pc observations (Hamilton et al. , 1996). besides the fact that, Por (1995) recommended that the realm extending into Bolivia and Paraguay has no longer been satisfactorily 2 surveyed, prime him to just accept the determine of 200,000 km because the region of the complete Pantanal, ineluding all of its extensions. the most explanation for the 12 months to 12 months version within the volume of the flooding is the significant distinction in timing of the rainfall at the watershed.

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Additional info for The Pantanal of Pocone: Biota and Ecology in the Northern Section of the World’s Largest Pristine Wetland

Example text

The subregions located in the state of Mato Grosso do Sul are even more distinctive, being located at latitudes progressively farther south and farther downstream along the river system. Other than the narrow Paraguai Subregion running north-south along the 16 ~", I ....... ~ ...! ~ . ,) P 0 ( 0 NE... / ( (' ..... 5. The ten generally accepted subdivision of the Pantanal, according to Magalhaes (1992). In Portuguese, these are sometimes referred to as pantanais, suggesting that each one is aseparate and distinct wetland.

Of plants from other continents that are not liked by the cattle and have become noxious weeds. Recent developments are threatening to change the traditional situation in the Pantanal. These include a resurgence of gold mining employing large quantities of mercury to amalgamate the gold dust. This activity not only causes local heavy metal pollution, it also leaves deep excavations and large fields of mud to mar the landscape (Fig. 1). Another serious problem is the increased poaching directed at various species that are either marketable for their skins, such as the local caiman, or at smaller birds, mammals, and reptiles that bring high prices on the international pet market.

However, a growing number of studies have established the existence of a common southem fauna which can best be described as circum-Antarctic. Various insect genera are found in the cooler parts of South America, Australia, and New Zealand. The taxa of this cool climate fauna of the southem hemisphere are usually best represented in South America, where it is distributed in southem Argentina and Chile and northward along the mountain ranges of the Andes well into the tropics (Brundin, 1966, 1967; Illies, 1965, 1966, 1969).

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The Pantanal of Pocone: Biota and Ecology in the Northern Section of the World’s Largest Pristine Wetland by Charles W. Heckman

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