Legacy effects in linked ecological–soil– geomorphic systems of drylands

TitleLegacy effects in linked ecological–soil– geomorphic systems of drylands
Publication TypeJournal Article
Year of Publication2015
AuthorsMonger C, Sala O.E, Duniway MC, Goldfus H, Meir IA, Poch RM, Throop HL, Vivoni E
JournalFrontiers in Ecology and the Environment
Start Page13
Date Published02/2015
Accession NumberJRN54145
ARIS Log Number314217
Keywordsbiotic process, conceptual framework, dryland systems, ecological legacies, ecological systems, geomorphic processes, legacy effects, soil processes

A legacy effect refers to the impacts that previous conditions have on current processes or properties. Legacies have been recognized by many disciplines, from physiology and ecology to anthropology and geology. Within the context of climatic change, ecological legacies in drylands (eg vegetative patterns) result from feedbacks between biotic, soil, and geomorphic processes that operate at multiple spatial and temporal scales. Legacy effects depend on (1) the magnitude of the original phenomenon, (2) the time since the occurrence of the phenomenon, and (3) the sensitivity of the ecological–soil–geomorphic system to change. Here we present a conceptual framework for legacy effects at short-term (days to months), medium-term (years to decades), and long-term (centuries to millennia) timescales, which reveals the ubiquity of such effects in drylands across research disciplines.