|DOI / URL
|Creative Commons Lizenz
||Scale-dependent impact of land management on above- and belowground biodiversity
||Slabbert, E.L.; Schweiger, O.; Wubet, T.; Kautzner, A.; Baessler, C.; Auge, H.; Roscher, C.; Knight, T.M.;
|Journal / Serie
||Ecology and Evolution
||BZF; iDiv; PHYDIV; TB1-Ecosystems;
|POF III (gesamt)
||above‐ and belowground taxonomic groups; biodiversity; grassland management; rarefaction curve; scale‐dependent responses; spatial aggregation; species‐abundance distribution
- Land management is known to have consequences for
biodiversity; however, our synthetic understanding of its effects is
limited due to highly variable results across studies, which vary in the
focal taxa and spatial grain considered, as well as the response
variables reported. Such synthetic knowledge is necessary for management
of agroecosystems for high diversity and function.
- To fill this knowledge gap, we investigated the
importance of scale‐dependent effects of land management (LM) (pastures
vs. meadows), on plant and soil microbe diversity (fungi and bacteria)
across 5 study sites in Central Germany. Analyses included diversity
partitioning of species richness and related biodiversity components
(i.e., density of individuals, species‐abundance distribution, and
spatial aggregation) at two spatial grains (α‐ and γ‐scale, 1 m2 and 16 km2, respectively).
- Our results show scale‐dependent patterns in response
to LM to be the norm rather than the exception and highlight the
importance of measuring species richness and its underlying components
at multiple spatial grains.
- Our outcomes provide new insight to the complexity of
scale‐dependent responses within and across taxonomic groups. They
suggest that, despite close associations between taxa, LM responses are
not easily extrapolated across multiple spatial grains and taxa.
Responses of biodiversity to LM are often driven by changes to evenness
and spatial aggregation, rather than by changes in individual density.
High‐site specificity of LM effects might be due to a variety of
context‐specific factors, such as historic land management, identity of
grazers, and grazing regime.
- Synthesis and applications: Our results
suggest that links between taxa are not necessarily strong enough to
allow for generalization of biodiversity patterns. These findings
highlight the importance of considering multiple taxa and spatial grains
when investigating LM responses, while promoting management practices
that do the same and are tailored to local and regional conditions.
|Slabbert, E.L., Schweiger, O., Wubet, T., Kautzner, A., Baessler, C., Auge, H., Roscher, C., Knight, T.M. (2020):
Scale-dependent impact of land management on above- and belowground biodiversity
Ecol. Evol. 10 (18), 10139 - 10149