By John A. Wiens (auth.), Kevin J. Gutzwiller (eds.)
Landscape ecology and conservation biology are quickly constructing disciplines, and a present synthesis of ideas and functions in those fields is required below one conceal. Many managers will not be utilizing rules of panorama ecology in efforts to preserve biota, but the lack of organic range can be diminished if broad-scale strategies and styles have been continuously thought of in administration and conservation judgements. Bringing jointly insights from leaders in panorama ecology and conservation biology, this booklet explains how our wisdom approximately panorama ecology will help us comprehend, deal with and preserve biodiversity. past explaining pertinent recommendations of panorama ecology and organic conservation and describing examples in their use in administration, examine and making plans, this publication additionally distills rules for making use of panorama ecology in conservation, identifies gaps in present wisdom and offers learn techniques to fill these voids. The booklet is split into 5 elements: the 1st half introduces the publication and discusses what panorama ecology is and why it is very important organic conservation. the second one offers with a number of scales, connectivity and organism flow. The 3rd half discusses panorama switch and the way this impacts biodiversity, and the fourth half covers conservation making plans. the ultimate half offers a synthesis that identifies overarching ideas, pervasive constraints and reasonable customers for employing panorama ecology in organic conservation. Conservationists, land-use planners, and ecologists will locate this e-book to be an important source. Foreword via Richard T.T. Forman.
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Corridors facilitate the "rescue effect" (Brown and Kodric-Brown 1977) and lessen the probability of local extinction of small populations in fragmented habitats. Contrary arguments have been raised, having to do primarily with the role that corridors may play in facilitating the spread of 12 1. , Rosenberg et al. 1997). Despite their intuitive and logical appeal, evidence for the efficacy of corridors is nowhere near as compelling as the enthusiasm with which corridors have been embraced as a conservation and management tool would seem to suggest (Hobbs 1992; Bennett 1999).
Part of the problem is that as these dimensions change, both patterns and processes change, often in complex ways. , Krummel et al. 1987; Ludwig et al. 2000), and different organisms perceive and respond to landscape structure at different scales (Wiens et al. 1993; Raila 1999; Mac Nally 1999). More often than not, the changes in relationships with changes in scale are strongly nonlinear. The thresholds in scale dependencies serve to define scaling domains, within which scaling relationships are consistent and extrapolation among scales is possible, but between which the rules change and extrapolation is difficult or impossible (O'Neill 1979; Wiens 1989a).
Stream management has often incorporated consideration of the adjacent riparian vegetation as a buffer zone to maintain stream integrity, but the landscape beyond the bordering riparian strip has often been considered only as a source of water, nutrients, or pollutants, with no explicit spatial structure of its own (but see Malanson 1993; Ward 1998; Wear et al. 1998). Despite appearances, the central concepts of landscape ecology have been an implicit part of aquatic ecology for some time. , Steele 1978, 1989), and Hutchinson (1961) explained the paradox of high species diversity among planktonic organisms in terms of the complex, three-dimensional spatial heterogeneity of oceans.
Applying Landscape Ecology in Biological Conservation by John A. Wiens (auth.), Kevin J. Gutzwiller (eds.)