de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch
 
Hilfe Wegweiser Impressum Kontakt Einloggen
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Grassland management intensification weakens the associations among the diversities of multiple plant and animal taxa

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons129628

Lange,  Markus
Molecular Biogeochemistry Group, Dr. G. Gleixner, Department Biogeochemical Processes, Prof. S. E. Trumbore, Max Planck Institute for Biogeochemistry, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Manning, P., Gossner, M. M., Bossdorf, O., Allan, E., Zhang, Y.-Y., Prati, D., et al. (2015). Grassland management intensification weakens the associations among the diversities of multiple plant and animal taxa. Ecology, 96(6), 1492-1501. doi:10.1890/14-1307.1.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0027-B665-F
Zusammenfassung
Land-use intensification is a key driver of biodiversity change. However, little is knownabouthowitaltersrelationshipsbetweenthediversitiesofdifferenttaxonomicgroups,which are often correlated due to shared environmental drivers and trophic interactions.Using data from 150 grassland sites, we examined how land-use intensification (increased fertilization, higher livestock densities, and increased mowing frequency) altered correlations between the species richness of 15 plant, invertebrate, and vertebrate taxa.We found that 54%of pairwise correlations between taxonomic groups were significant and positive among all grasslands, while only one was negative.Higher land-use intensitysubstantiallyweakenedthesecorrelations(35%decrease in rand 43%fewer significantpairwise correlations athighintensity),apatternwhichmayemerge as a result of biodiversity declines and the breakdown of specialized relationships in these conditions. Nevertheless, some groups (Coleoptera, Heteroptera, Hymenoptera and Orthoptera) were consistently correlated with multidiversity, an aggregate measure of total biodiversity comprised of the standardizeddiversities ofmultiple taxa, at both high and lowland-use intensity.The formof intensificationwasalsoimportant; increasedfertilizationandmowingfrequencytypicallyweakened plant–plantandplant–primaryconsumer correlations,whereasgrazingintensificationdidnot.This may reflect decreased habitat heterogeneity under mowing and fertilization and increased habitat heterogeneity under grazing.While these results urge caution in using certain taxonomic groups to monitor impacts ofagriculturalmanagementonbiodiversity, theyalsosuggestthat thediversitiesof some groups are reasonably robust indicators of total biodiversity across a range of conditions.