By Kathleen A. Galvin, Robin S. Reid, Roy H. Behnke Jr., N. Thompson Hobbs
Exploring the concept that of fragmentation, the ecological methods interrupted through fragmentation, and the social results of fragmented landscapes, this publication provides a well timed synthesis at the results of fragmentation on arid and semi-arid pastoral structures during the international.
The worldwide value of the world’s rangelands is huge, with those arid and semi-arid structures 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 last megafauna, in addition to different vital species. but fragmentation throughout those rangelands has considerably impaired the facility of either humans and animals to catch up on temporal heterogeneity in plants and water through exploiting its spatial heterogeneity, leading to constrained source availability.
The case is built that whereas fragmentation arises from various usual, social and financial stipulations all over the world it creates related results for human and usual platforms. With details from 9 websites around the globe the authors study how fragmentation happens, the styles that end result, and the implications of fragmentation for ecosystems and the folk who depend upon them. The ebook will offer a worthy 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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Additional info for Fragmentation in Semi-Arid and Arid Landscapes: Consequences for Human and Natural Systems
E. A. Roth, M. A. Nathan, and E. Fratkin. 2004. Sedentism, seasonality, and economic status: a multivariate analysis of maternal dietary and health statuses between pastoral and agricultural Ariaal and Rendille communities in northern Kenya. American Journal of Physical Anthropology 123:277-291. Galaty, J. G. 1994. Rangeland tenure and pastoralism in Africa. Pages 185-204 In E. Fratkin, K. A. Galvin, and E. A. Roth, editors. African pastoralist systems: An integrated approach. Lynne Reiner Publishers, Boulder, Colorado, USA.
Only the economic side of the equation is considered; the ecological side and its value are ignored. However, ecosystem scientists and ecological-economic practitioners understand that complex systems are self-sustaining, whereas simplified (fragmented) ecosystems often require capital inputs, subsidies and/or management to be sustainable (Ellis and Peel 1995). ) to replace the access to natural capital lost through fragmentation (Prugh 1999). Land use patterns, driven by economic or political agendas, are unlikely to be perfectly superimposed on spatial complexity patterns.
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