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Stressor-induced biodiversity gradients: revisiting biodiversity–ecosystem functioning relationships

(2015) OIKOS. 124(6). p.677-684
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Abstract
Biodiversity - ecosystem functioning experiments typically inspect functioning in randomly composed communities, representing broad gradients of taxonomic richness. We tested if the resulting evenness gradients and evenness-functioning relationships reflect those found in communities facing evenness loss caused by anthropogenic stressors. To this end, we exposed marine benthic diatom communities to a series of treatments with the herbicide atrazine, and analysed the relationship between the resulting gradients of evenness and ecosystem functioning (primary production, energy content and sediment stabilization). Atrazine exposure resulted in narrower evenness gradients and steeper evenness-functioning relations than produced by the classical approach of random community assembly. The disproportionately large decrease in functioning following atrazine treatment was related to selective atrazine effects on the species that contributed most to the ecosystem functions considered. Our findings demonstrate that the sensitivity to stress and the contribution to ecosystem functioning at the species level should be both considered to understand biodiversity and ecosystem functioning under anthropogenic stress.
Keywords
diatom, stress, herbicide, evenness, ecosystem function, pollution, atrazine, biodiversity, CONSERVATION, CONSEQUENCES, PHYTOPLANKTON, RICHNESS, EXTINCTION, EVENNESS, MICROPHYTOBENTHOS, FATTY-ACIDS, PHOTOSYNTHETIC ACTIVITY, FOOD-WEB

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Citation

Please use this url to cite or link to this publication:

Chicago
Mensens, Christoph, Frederik De Laender, Colin Janssen, Koen Sabbe, and Marleen De Troch. 2015. “Stressor-induced Biodiversity Gradients: Revisiting Biodiversity–ecosystem Functioning Relationships.” Oikos 124 (6): 677–684.
APA
Mensens, C., De Laender, F., Janssen, C., Sabbe, K., & De Troch, M. (2015). Stressor-induced biodiversity gradients: revisiting biodiversity–ecosystem functioning relationships. OIKOS, 124(6), 677–684.
Vancouver
1.
Mensens C, De Laender F, Janssen C, Sabbe K, De Troch M. Stressor-induced biodiversity gradients: revisiting biodiversity–ecosystem functioning relationships. OIKOS. 2015;124(6):677–84.
MLA
Mensens, Christoph, Frederik De Laender, Colin Janssen, et al. “Stressor-induced Biodiversity Gradients: Revisiting Biodiversity–ecosystem Functioning Relationships.” OIKOS 124.6 (2015): 677–684. Print.
@article{5984575,
  abstract     = {Biodiversity - ecosystem functioning experiments typically inspect functioning in randomly composed communities, representing broad gradients of taxonomic richness. We tested if the resulting evenness gradients and evenness-functioning relationships reflect those found in communities facing evenness loss caused by anthropogenic stressors. To this end, we exposed marine benthic diatom communities to a series of treatments with the herbicide atrazine, and analysed the relationship between the resulting gradients of evenness and ecosystem functioning (primary production, energy content and sediment stabilization). Atrazine exposure resulted in narrower evenness gradients and steeper evenness-functioning relations than produced by the classical approach of random community assembly. The disproportionately large decrease in functioning following atrazine treatment was related to selective atrazine effects on the species that contributed most to the ecosystem functions considered. Our findings demonstrate that the sensitivity to stress and the contribution to ecosystem functioning at the species level should be both considered to understand biodiversity and ecosystem functioning under anthropogenic stress.},
  author       = {Mensens, Christoph and De Laender, Frederik and Janssen, Colin and Sabbe, Koen and De Troch, Marleen},
  issn         = {0030-1299},
  journal      = {OIKOS},
  language     = {eng},
  number       = {6},
  pages        = {677--684},
  title        = {Stressor-induced biodiversity gradients: revisiting biodiversity--ecosystem functioning relationships},
  url          = {http://dx.doi.org/10.1111/oik.01904},
  volume       = {124},
  year         = {2015},
}

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