Journal
SOIL BIOLOGY & BIOCHEMISTRY
Volume 40, Issue 4, Pages 853-863Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.soilbio.2007.11.008
Keywords
soil fauna; soil microbes; below-ground habitat; ecological model system; habitat size; ecosystem functioning; scale
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Due to the practical difficulties of experimental study of habitat fragmentation and habitat corridors at the ladscape scale, the use of smaller-scale model systems has been offered as a feasible alternative to uncover the ecological phenomena taking place ill fragmented environments. In this mini-review, we consider the applicability of the soil decomposer community as such a model system. For the most part, this article is based oil (lie few studies that have explicitly addressed this question by experimental manipulations of the natural habitat of soil decomposer community. However, to broaden the view, we also capitalize upon studies focusing oil the effects of isolation and soil use changes oil soil organisms and oil dispersal of soil fauna, all of these being considered as factors determining the sensitivity of organisms to habitat fragmentation.. Since Usability of a model system by definition depends oil the possibility of applying the results to other (usually larger scale) systems, we discuss the characteristics of the soil decomposer community also from this point of view. The existing data suggest that soil Organisms, in general, are not sensitive to habitat fragmentation even in small scale. Because of this, and the unique features of the belowground environment and its biota combined with gaps in the knowledge of the life history characteristics of soil organisms, the soil decomposer community is not. ideal for predicting the implications of habitat fragmentation and habitat corridors oil threatened species. Despite this, we still believe that there are lessons to be learned by studying the effects of habitat fragmentation on this important community of organisms, especially in combination with the consequences of ongoing climate change. (C) 2007 Elsevier Ltd. All rights reserved.
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