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How To Locate An Best Possible RAD001 Package

Added: (Thu Jan 18 2018)

Pressbox (Press Release) - Under Mediterranean conditions, the assimilation efficiency of G. marginata is <10% when feeding on partially decomposed leaves (David & Gillon 2002). Their assimilation efficiency can triple when feeding on freshly fallen litter, but feeding trials have demonstrated a clear preference for partially decomposed litter (David & Gillon 2002). With such strongly contrasting traits, complementarity effects on decomposition seem likely, that is faster decomposition when both macrodetritivores are present. The hypothesis that species complementarity can result in enhanced ecosystem processes has received support from plant diversity-productivity experiments (Loreau & Hector 2001; Cardinale et?al. 2007) and has been tested increasingly in litter decomposition Sirolimus supplier systems (Jonsson & Malmqvist 2003; Heemsbergen PD 98059 et?al. 2004; Zimmer, Kautz & Topp 2005). Incorporating trophic complexity in biodiversity-ecosystem functioning models is challenging but recognized as important (Cardinale et?al. 2006; Duffy et?al. 2007). The manipulation of macrodetritivore diversity represents a single trophic level in the decomposer food web. At the bottom of the food chain, the manipulation of litter substrate diversity itself has shown that litter mixing can result in non-additive effects (slower or faster decomposition of litter mixtures than would be predicted based on single-species decomposition rates; see reviews by Gartner & Cardon 2004; H?ttenschwiler, Tiunov & Scheu 2005 and recent studies by Madritch & Cardinale 2007; Jonsson & Wardle 2008; P��rez Harguindeguy et?al. 2008). Drivers of these non-additive litter mixing effects could include litter chemistry (Smith & Bradford 2003; Hoorens, Aerts & Stroetenga 2003, Epps et?al. 2007; Liu et?al. 2007) as well as decomposer organisms (Hansen & Coleman 1998; Kaneko & Salamanca 1999; H?ttenschwiler & Gasser 2005). Our study addresses the role of two contrasting species of Mediterranean forest saprophagous macrofauna this website and leaf litter diversity and their potential interaction in a microcosm system. More particularly, regarding macrofauna, we hypothesized that (1) freshly fallen litter (in contrast to partially decomposed litter) would be more readily consumed by the gastropod, P. elegans, than by the millipede, G. marginata; (2) the combination of P. elegans and G. marginata would result in synergistic consumption, particularly in freshly fallen litter; (3) consumption would vary with litter species composition such that (a) litter mixtures would be consumed more than single-species litter and (b) consumption of litter mixtures would increase with increasing functional dissimilarity of the mixtures.

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