TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Vetter, Vanessa M. S.
A1  - Kreyling, Juergen
A1  - Dengler, Jürgen
A1  - Apostolova, Iva
A1  - Arfin‐Khan, Mohammed A. S.
A1  - Berauer, Bernd J.
A1  - Berwaers, Sigi
A1  - De Boeck, Hans J.
A1  - Nijs, Ivan
A1  - Schuchardt, Max A.
A1  - Sopotlieva, Desislava
A1  - von Gillhausen, Philipp
A1  - Wilfahrt, Peter A.
A1  - Zimmermann, Maja
A1  - Jentsch, Anke
T1  - Invader presence disrupts the stabilizing effect of species richness in plant community recovery after drought
JF  - Global Change Biology
N2  - Abstract
Higher biodiversity can stabilize the productivity and functioning of grassland communities when subjected to extreme climatic events. The positive biodiversity–stability relationship emerges via increased resistance and/or recovery to these events. However, invader presence might disrupt this diversity–stability relationship by altering biotic interactions. Investigating such disruptions is important given that invasion by non‐native species and extreme climatic events are expected to increase in the future due to anthropogenic pressure. Here we present one of the first multisite invader × biodiversity × drought manipulation experiment to examine combined effects of biodiversity and invasion on drought resistance and recovery at three semi‐natural grassland sites across Europe. The stability of biomass production to an extreme drought manipulation (100% rainfall reduction; BE: 88 days, BG: 85 days, DE: 76 days) was quantified in field mesocosms with a richness gradient of 1, 3, and 6 species and three invasion treatments (no invader, Lupinus polyphyllus, Senecio inaequidens). Our results suggest that biodiversity stabilized community productivity by increasing the ability of native species to recover from extreme drought events. However, invader presence turned the positive and stabilizing effects of diversity on native species recovery into a neutral relationship. This effect was independent of the two invader's own capacity to recover from an extreme drought event. In summary, we found that invader presence may disrupt how native community interactions lead to stability of ecosystems in response to extreme climatic events. Consequently, the interaction of three global change drivers, climate extremes, diversity decline, and invasive species, may exacerbate their effects on ecosystem functioning.
KW  - -
KW  - alien invasive species
KW  - biological invasion
KW  - climate extreme
KW  - disturbance
KW  - ecosystem functioning
KW  - grassland ecosystem
KW  - plant–environment interaction
KW  - recovery
KW  - resilience
KW  - resistance
Y1  - 2020
UN  - https://nbn-resolving.org/urn:nbn:de:gbv:9-opus-40885
SN  - 1365-2486
SS  - 1365-2486
U6  - https://doi.org/10.1111/gcb.15025
DO  - https://doi.org/10.1111/gcb.15025
VL  - 26
IS  - 6
SP  - 3539
EP  - 3551
PB  - Wiley
CY  - Hoboken, New Jersey
ER  -