Prediction of mixed-species litter decomposition

Prediction of mixed-species litter decomposition

Prediction of mixed-species lit­ter decomposition

The com­plex dynam­ics of inter­act­ing bio­lo­gical organ­isms that form eco­lo­gical sys­tems make pre­dic­tions of pro­cesses dif­fi­cult and often impre­cise. In this con­text, Tardif and Shipley  explore the accept­ab­il­ity of the biomass-ratio hypo­thesis, oper­a­tion­al­ized as community-weighted means, and a new hypo­thesis (idio­syn­cratic annul­ment) for pre­dict­ing the decom­pos­i­tion of multis­pe­cies lit­ter mix­tures. They find devi­ations from expect­a­tion but an aver­age bias of approx­im­ately zero and a decreas­ing vari­ab­il­ity with increas­ing spe­cies rich­ness (SR). They con­clude that, since SR increases with increas­ing spa­tial scale, the spa­tial scale will be a determ­in­ant in the pre­dic­tion of eco­sys­tems pro­cesses, such as lit­ter decom­pos­i­tion rates.

Annals of Botany Office.

The Annals of Botany Office is based at the University of Leicester.

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