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Quantifying establishment limitations during the ecological restoration of species-rich Nardus grassland

Frederik Van Daele, Safaa Wasof UGent, Andreas Demey, Stephanie Schelfhout UGent, An De Schrijver UGent, Lander Baeten UGent, Jasper van Ruijven, Jan Mertens UGent and Kris Verheyen UGent (2017) APPLIED VEGETATION SCIENCE. 20(4). p.594-607
abstract
Aims: Successful establishment of species-rich Nardus grasslands on ex-agricultural land requires identification and removal of barriers to effective seed germination and seedling survival. Therefore, we investigate how germination and early development are affected by soil conditions from different restoration phases and how this relates to their specific plant strategies. Location: Grasslands and experiments in northern Belgium. Methods: We selected three grassland restoration phases (Lolium perenne grasslands, grass-herb mix grasslands and species-rich Nardus grasslands), which were characterized by a distinct plant community and soils with contrasting abiotic and biotic properties (respectively, eutrophic, mesotrophic and oligotrophic soils). In a first germination experiment we investigated the species-specific responses (germination, lag time and emergence rate) of 70 grassland species (that typically occur along the restoration gradient) in each of the selected soils. Second, a mesocosm experiment was set-up in which a mixture of 19 species (representative of the distinct grassland restoration phases) was grown together in the respective soils. Here, we analysed the intraspecific variation of plant growth, SLA and identified changes in community assembly. Results: Irrespective of soil influences, Nardus grassland species had significantly lower germination potentials and longer germination lag times than L. perenne grassland species. Germination (and its lag time) of grass-herb mix grassland species were negatively affected by the oligotrophic soils. Soil factors determined early growth patterns during the emergence and establishment phase. L. perenne grassland species exhibited a more plastic growth response and were highly dependent on soil type. Nardus grassland species exhibited large intraspecific variation in SLA, which was found to be significantly lower in the oligotrophic soils. Even though the difference in bio-available P between mesotrophic and oligotrophic soils was minor, Nardus grassland species were only able to compete in the oligotrophic soils (no significant difference in biomass between communities). Mesotrophic mesocosms exhibited the highest species richness after 200d of growth. Conclusion: Plant species from the three grassland restoration phases display distinct germination strategies, irrespective of soil type. Interactions between growth strategies and soil factors determine competitive asymmetry and therefore shape community assembly in the distinct grassland phases.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Community assembly, Establishment limitation, Germination, Intraspecific trait variation, Plant-soil interactions, Restoration ecology, Semi-natural Nardus grasslands, PLANT-SOIL FEEDBACK, SEMINATURAL GRASSLANDS, ALUMINUM TOXICITY, INDICATOR VALUES, NUTRIENT LIMITATION, LEAF-AREA, DIVERSITY, VEGETATION, PHOSPHORUS, NITROGEN
journal title
APPLIED VEGETATION SCIENCE
Appl. Veg. Sci.
volume
20
issue
4
pages
594 - 607
Web of Science type
Article
Web of Science id
000412077700007
ISSN
1402-2001
DOI
10.1111/avsc.12330
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8530703
handle
http://hdl.handle.net/1854/LU-8530703
date created
2017-09-08 13:03:03
date last changed
2018-02-21 11:13:04
@article{8530703,
  abstract     = {Aims: Successful establishment of species-rich Nardus grasslands on ex-agricultural land requires identification and removal of barriers to effective seed germination and seedling survival. Therefore, we investigate how germination and early development are affected by soil conditions from different restoration phases and how this relates to their specific plant strategies. 
Location: Grasslands and experiments in northern Belgium. 
Methods: We selected three grassland restoration phases (Lolium perenne grasslands, grass-herb mix grasslands and species-rich Nardus grasslands), which were characterized by a distinct plant community and soils with contrasting abiotic and biotic properties (respectively, eutrophic, mesotrophic and oligotrophic soils). In a first germination experiment we investigated the species-specific responses (germination, lag time and emergence rate) of 70 grassland species (that typically occur along the restoration gradient) in each of the selected soils. Second, a mesocosm experiment was set-up in which a mixture of 19 species (representative of the distinct grassland restoration phases) was grown together in the respective soils. Here, we analysed the intraspecific variation of plant growth, SLA and identified changes in community assembly. 
Results: Irrespective of soil influences, Nardus grassland species had significantly lower germination potentials and longer germination lag times than L. perenne grassland species. Germination (and its lag time) of grass-herb mix grassland species were negatively affected by the oligotrophic soils. Soil factors determined early growth patterns during the emergence and establishment phase. L. perenne grassland species exhibited a more plastic growth response and were highly dependent on soil type. Nardus grassland species exhibited large intraspecific variation in SLA, which was found to be significantly lower in the oligotrophic soils. Even though the difference in bio-available P between mesotrophic and oligotrophic soils was minor, Nardus grassland species were only able to compete in the oligotrophic soils (no significant difference in biomass between communities). Mesotrophic mesocosms exhibited the highest species richness after 200d of growth. 
Conclusion: Plant species from the three grassland restoration phases display distinct germination strategies, irrespective of soil type. Interactions between growth strategies and soil factors determine competitive asymmetry and therefore shape community assembly in the distinct grassland phases.},
  author       = {Van Daele, Frederik and Wasof, Safaa and Demey, Andreas and Schelfhout, Stephanie and De Schrijver, An and Baeten, Lander and van Ruijven, Jasper and Mertens, Jan and Verheyen, Kris},
  issn         = {1402-2001},
  journal      = {APPLIED VEGETATION SCIENCE},
  keyword      = {Community assembly,Establishment limitation,Germination,Intraspecific trait variation,Plant-soil interactions,Restoration ecology,Semi-natural Nardus grasslands,PLANT-SOIL FEEDBACK,SEMINATURAL GRASSLANDS,ALUMINUM TOXICITY,INDICATOR VALUES,NUTRIENT LIMITATION,LEAF-AREA,DIVERSITY,VEGETATION,PHOSPHORUS,NITROGEN},
  language     = {eng},
  number       = {4},
  pages        = {594--607},
  title        = {Quantifying establishment limitations during the ecological restoration of species-rich Nardus grassland},
  url          = {http://dx.doi.org/10.1111/avsc.12330},
  volume       = {20},
  year         = {2017},
}

Chicago
Van Daele, Frederik, Safaa Wasof, Andreas Demey, Stephanie Schelfhout, An De Schrijver, Lander Baeten, Jasper van Ruijven, Jan Mertens, and Kris Verheyen. 2017. “Quantifying Establishment Limitations During the Ecological Restoration of Species-rich Nardus Grassland.” Applied Vegetation Science 20 (4): 594–607.
APA
Van Daele, F., Wasof, S., Demey, A., Schelfhout, S., De Schrijver, A., Baeten, L., van Ruijven, J., et al. (2017). Quantifying establishment limitations during the ecological restoration of species-rich Nardus grassland. APPLIED VEGETATION SCIENCE, 20(4), 594–607.
Vancouver
1.
Van Daele F, Wasof S, Demey A, Schelfhout S, De Schrijver A, Baeten L, et al. Quantifying establishment limitations during the ecological restoration of species-rich Nardus grassland. APPLIED VEGETATION SCIENCE. 2017;20(4):594–607.
MLA
Van Daele, Frederik, Safaa Wasof, Andreas Demey, et al. “Quantifying Establishment Limitations During the Ecological Restoration of Species-rich Nardus Grassland.” APPLIED VEGETATION SCIENCE 20.4 (2017): 594–607. Print.