By Kathleen A. Galvin, Robin S. Reid, Roy H. Behnke Jr., N. Thompson Hobbs

Exploring the concept that of fragmentation, the ecological tactics interrupted by means of fragmentation, and the social outcomes of fragmented landscapes, this e-book provides a well timed synthesis at the results of fragmentation on arid and semi-arid pastoral structures through the international.

The worldwide value of the world’s rangelands is huge, with those arid and semi-arid platforms making up virtually 25% of the earth’s landscapes – and helping the livelihoods of greater than 20 million humans. those ecosystems also are domestic to numerous of the planet’s ultimate megafauna, in addition to different vital species. but fragmentation throughout those rangelands has considerably impaired the power of either humans and animals to make amends for temporal heterogeneity in plants and water through exploiting its spatial heterogeneity, leading to restricted source availability.

The case is constructed that whereas fragmentation arises from diversified ordinary, social and fiscal stipulations around the globe it creates related results for human and common platforms. With details from 9 websites world wide the authors study how fragmentation happens, the styles that consequence, and the results of fragmentation for ecosystems and the folk who depend upon them. The e-book will supply a priceless reference for college kids and researchers in rangeland ecology, park and average source administration, environmental and ecological anthropology, economics and agriculture.

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Extra resources for Fragmentation in Semi-Arid and Arid Landscapes: Consequences for Human and Natural Systems

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Generally subdivisions of nomadic societies, like ‘sections’ or territorial political groups, have rights of possession and use of pastures, use of wells, boundaries of routes of migration, etc. These rules of use are varied in time and place and are sometimes very complex. These rules of use allow the carrying out of socially Fragmentation of Arid and Semi-Arid Ecosystems 37 expedient managerial functions. The social organizational level that is imbued with decision-making authority varies among groups.

SCALE AND RESOURCE HETEROGENEITY Virtually all ideas about the effects of fragmentation have overlooked the fact that isolation of habitat fragments can compress the scale of interaction between consumers and the ecological and social resources they require to survive and reproduce. 1 The scale of interaction between consumers and resources will become smaller whenever the area of habitat fragments is smaller than the area that could be used for foraging by people and animals on an intact landscape.

M. B. Fenton, I. L. Rautenbach, R. D. Taylor, G. S. Cumming, and M. S. Cumming. 1997. Elephants, woodlands and biodiversity in southern Africa. South African Journal of Science 93:231-236. Darwin, C. R. 1909-1914. The voyage of the Beagle. Vol. XXIX. The Harvard Classics. F. Collier & Son, New York. , H. Steinfeld, and H. Blackburn. 1997. Livestock and the environment: finding a balance. WRENmedia, Fressingfield, UK. , M. N. Waweru, O. O. Okello, M. Maloba, P. Nguru, M. Y. Said, H. M. Aligula, I.

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