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Title

Advancing plant ecology through meta-analyses

AuthorsGómez Aparicio, Lorena ; Lortie, C. J.
KeywordsData synthesis
Effect sizes
Global change drivers
Grassland function
Intraspecific genetic diversityJanzen-Connell hypothesis; Landscape fragmentation; Plant population and community dynamics; Plant-herbivore interactions; Strength of evidence
Janzen-Connell hypothesis
Landscape fragmentation
Plant population and community dynamics
Plant-herbivore interactions
Strength of evidence
Issue Date23-Jun-2014
PublisherBritish Ecological Society
CitationJournal of Ecology 102 (4): 823-827 (2014)
AbstractThe inherent complexity of nature produces a diverse and varied set of outcomes for any given ecological process. However, the advance of ecology requires making generalizations that synthesize current knowledge and guide new basic research and practical applications. Among the synthesis tools available for this specific purpose, meta-analysis is one of the most accurate and powerful methods. This Special Feature examines the use that meta-analysis has received in plant ecology over the last two decades and provides examples of synthesis applied to contemporary topics in different areas of plant ecology from populations to ecosystems. The number of meta-analyses in plant ecology has been increasing rapidly in the last two decades. However, this increase has not been accompanied by a parallel increase in quality. The opening review paper in this Special Feature provides a checklist of quality criteria specific to ecological meta-analysis that will largely contribute to improvement of the methodological and reporting standards of meta-analyses. The following five papers in the Special Feature demonstrate the advantages of application of meta-analysis compared with other techniques of research synthesis. Meta-analysis is applied here to demonstrate the consistency of ecological hypotheses across large spatial scales (e.g. Janzen-Connell hypothesis), understand sources of variation in the magnitude of ecological processes (e.g. herbivory effects on leaf life span, effects of intraspecific genetic diversity on communities and ecosystems), measure synergistic impacts of environmental change drivers (e.g. CO2, drought, land use) or assess research gaps within a certain sub-discipline of plant ecology (e.g. landscape fragmentation). Synthesis. Meta-analysis can contribute to the advance of ecological theory by synthesizing the available evidence on specific topics and informing the scope of generalizations. However, plant ecologists can only take full advantage of this capacity if we improve our knowledge on how and when to conduct a proper meta-analysis, and by avoiding the frequent misuses that have characterized the use of this statistical tool in the ecological literature thus far.
Description5 páginas.-- 46 referencias.-- SPECIAL FEATURE–EDITORIAL META-ANALYSIS IN PLANT ECOLOGY
Publisher version (URL)http://dx.doi.org/10.1111/1365-2745.12264
URIhttp://hdl.handle.net/10261/99649
DOI10.1111/1365-2745.12264
ISSN1365-2745
Appears in Collections:(IRNAS) Artículos
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