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Effects of ozone on species composition in an upland grassland

Overview of attention for article published in Oecologia, November 2011
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Effects of ozone on species composition in an upland grassland
Published in
Oecologia, November 2011
DOI 10.1007/s00442-011-2154-2
Pubmed ID

Kerstin V. Wedlich, Naomi Rintoul, Simon Peacock, J. Neil Cape, Mhairi Coyle, Sylvia Toet, Jeremy Barnes, Mike Ashmore


Northern hemispheric background concentrations of ozone are increasing, but few studies have assessed the ecological significance of these changes for grasslands of high conservation value under field conditions. We carried out a 3-year field experiment in which ozone was released at a controlled rate over three experimental transects to produce concentration gradients over the field site, an upland mesotrophic grassland located in the UK. We measured individual species biomass in an annual hay cut in plots receiving ambient ozone, and ambient ozone elevated by mean concentrations of approximately 4 ppb and 10 ppb in the growing seasons of 2008 and 2009. There was a significant negative effect of ozone exposure on herb biomass, but not total grass or legume biomass, in 2008 and 2009. Within the herb fraction, ozone exposure significantly decreased the biomass of Ranunculus species and that of the hemi-parasitic species Rhinanthus minor. Multivariate analysis of species composition, taking into account spatial variation in soil conditions and ozone exposure, showed no significant ozone effect on the grass component. In contrast, by 2009, ozone had become the dominant factor influencing species composition within the combined herb and legume component. Our results suggest that elevated ozone concentrations may be a significant barrier to achieving increased species diversity in managed grasslands.

Twitter Demographics

The data shown below were collected from the profiles of 2 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 30 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Estonia 1 3%
France 1 3%
Unknown 28 93%

Demographic breakdown

Readers by professional status Count As %
Researcher 5 17%
Student > Master 5 17%
Professor 4 13%
Student > Ph. D. Student 4 13%
Student > Bachelor 3 10%
Other 9 30%
Readers by discipline Count As %
Environmental Science 11 37%
Agricultural and Biological Sciences 10 33%
Unspecified 5 17%
Earth and Planetary Sciences 2 7%
Social Sciences 1 3%
Other 1 3%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 08 November 2011.
All research outputs
of 4,505,992 outputs
Outputs from Oecologia
of 1,576 outputs
Outputs of similar age
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Outputs of similar age from Oecologia
of 21 outputs
Altmetric has tracked 4,505,992 research outputs across all sources so far. This one is in the 34th percentile – i.e., 34% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,576 research outputs from this source. They receive a mean Attention Score of 3.8. This one is in the 15th percentile – i.e., 15% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 73,577 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 44th percentile – i.e., 44% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 21 others from the same source and published within six weeks on either side of this one. This one is in the 28th percentile – i.e., 28% of its contemporaries scored the same or lower than it.