Biotic homogenization of regional wetland plant communities within short timescales in the presence of an aggressive invader



This is the dataset used in the Journal of Ecology publication of the same name. It is a site by species matrix of species relative abundances.

The file contains a site by species matrix of species relative abundance (percent cover across all sampling quadrats within site). Data under the heading Year refers to sampling periods. Year 1 refers to the first set of samples taken between 1997 and 2000, Year 2 refers to the second set taken between 2002 and 2005, Year 3 refers to the third set taken between 2007 and 2010, and Year 4 refers to the fourth set taken between 2012 and 2015. All sites met Critical Trends Assessment Program (CTAP) size criteria of being at least 2 ha in size with a minimum of 500 m2 of suitable sampling area.

The data in file contains Public Land Survey System ranges and townships in which specific sites were located. All sites were located within the U.S. state of Illinois.

More information about this dataset: Interested parties can request data from the Critical Trends Assessment Program, which was the source for the data on the wetlands in this study. More information on the program and data requests can be obtained by visiting the program webpage.
Critical Trends Assessment Program, Illinois Natural History Survey.
Date made availableSep 28 2017
PublisherUniversity of Illinois Urbana-Champaign


  • Phalaris arundinacea
  • similarity index
  • biodiversity
  • biotic homogenization
  • plant population and community dynamics
  • wetlands
  • invasive species

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