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Below‑ground herbivory mitigates biomass loss from above‑ground herbivory of nitrogen fertilized plants

Borgström, Pernilla and Bommarco, Riccardo and Viketoft, Maria and Strengbom, Joachim (2020). Below‑ground herbivory mitigates biomass loss from above‑ground herbivory of nitrogen fertilized plants. Scientific Reports. 10 , 12752
[Journal article]

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Abstract

Herbivorous insects can infuence grassland ecosystem functions in several ways, notably by altering
primary production and nutrient turnover. Interactions between above- and belowground herbivory
could afect these functions; an efect that might be modifed by nitrogen (N) addition, an important
global change driver. To explore this, we added above- (grasshoppers) and belowground (wireworms)
insect herbivores and N into enclosed, equally composed, grassland plant communities in a fully
factorial feld experiment. N addition substantially altered the impact of above- and belowground
herbivory on ecosystem functioning. Herbivory and N interacted such that biomass was reduced under
above ground herbivory and high N input, while plant biomass remained stable under simultaneous
above- and belowground herbivory. Aboveground herbivory lowered nutrient turnover rate in the
soil, while belowground herbivory mitigated the efect of aboveground herbivory. Soil decomposition
potential and N mineralization rate were faster under belowground herbivory at ambient N, but
at elevated N this efect was only observed when aboveground herbivores were also present. We
found that N addition does not only infuence productivity directly (repeatedly shown by others), but
also appears to infuence productivity by herbivory mediated efects on nutrient dynamics, which
highlights the importance of a better understanding of complex biotic interactions.

Authors/Creators:Borgström, Pernilla and Bommarco, Riccardo and Viketoft, Maria and Strengbom, Joachim
Title:Below‑ground herbivory mitigates biomass loss from above‑ground herbivory of nitrogen fertilized plants
Year of publishing :2020
Volume:10
Article number:12752
Number of Pages:8
ISSN:2045-2322
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
URN:NBN:urn:nbn:se:slu:epsilon-p-109475
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109475
Additional ID:
Type of IDID
DOI10.1038/s41598-020-69696-3
ID Code:21144
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:08 Jan 2021 09:45
Metadata Last Modified:15 Jan 2021 19:18

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