TY - JOUR
T1 - Grassland management intensification weakens the associations among the diversities of multiple plant and animal taxa
AU - Manning, Pete
AU - Gossner, Martin M.
AU - Bossdorf, Oliver
AU - Allan, Eric
AU - Zhang, Yuan Ye
AU - Prati, Daniel
AU - Blüthgen, Nico
AU - Boch, Steffen
AU - Böhm, Stefan
AU - Börschig, Carmen
AU - Hölzel, Norbert
AU - Jung, Kirsten
AU - Klaus, Valentin H.
AU - Klein, Alexandra Maria
AU - Kleinebecker, Till
AU - Krauss, Jochen
AU - Lange, Markus
AU - Müller, Jörg
AU - PAŠALIć, Esther
AU - Socher, Stephanie A.
AU - Tschapka, Marco
AU - Türke, Manfred
AU - Weiner, Christiane
AU - Werner, Michael
AU - Gockel, Sonja
AU - Hemp, Andreas
AU - Renner, Swen C.
AU - Wells, Konstans
AU - Buscot, François
AU - Kalko, Elisabeth K.V.
AU - Linsenmair, Karl Eduard
AU - Weisser, Wolfgang W.
AU - Fischer, Markus
N1 - Publisher Copyright:
© 2015 by the Ecological Society of America.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - Land-use intensification is a key driver of biodiversity change. However, little is known about how italters relationships between the diversities of different tax on omicgroups, 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 intensity substantially weakened these correlations (35% decrease in rand 43% fewer significantpair wise correlations at high intensity), apattern which may emerge 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 standardized diversities of multiple taxa, at both high and lowland-use intensity. The form of intensification was also important; increased fertilization and mowing frequency typically weakened plant-plantand plant-primary consumer correlations, whereas grazingintensification didnot. 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 of agricultural management on biodiversity, they also suggest that the diversities of some groups are reasonably robust indicators of total biodiversity across a range of conditions.
AB - Land-use intensification is a key driver of biodiversity change. However, little is known about how italters relationships between the diversities of different tax on omicgroups, 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 intensity substantially weakened these correlations (35% decrease in rand 43% fewer significantpair wise correlations at high intensity), apattern which may emerge 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 standardized diversities of multiple taxa, at both high and lowland-use intensity. The form of intensification was also important; increased fertilization and mowing frequency typically weakened plant-plantand plant-primary consumer correlations, whereas grazingintensification didnot. 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 of agricultural management on biodiversity, they also suggest that the diversities of some groups are reasonably robust indicators of total biodiversity across a range of conditions.
KW - Biodiversity indicators
KW - Correlation
KW - Fertilization
KW - Grassland management
KW - Grazing
KW - Land-use change
KW - Land-use intensity
KW - Mowing
KW - Multidiversity
KW - Multitrophic interactions
UR - http://www.scopus.com/inward/record.url?scp=84930825715&partnerID=8YFLogxK
U2 - 10.1890/14-1307.1
DO - 10.1890/14-1307.1
M3 - Article
AN - SCOPUS:84930825715
SN - 0012-9658
VL - 96
SP - 1492
EP - 1501
JO - Ecology
JF - Ecology
IS - 6
ER -