Homogenization of plant diversity, composition, and structure in North American urban yards

William D. Pearse, Jeannine Cavender-Bares, Sarah E. Hobbie, Meghan L. Avolio, Neil Bettez, Rinku Roy Chowdhury, Lindsay E. Darling, Peter M. Groffman, J. Morgan Grove, Sharon Hall, James B. Heffernan, Jennifer Learned, Christopher Neill, Kristen C. Nelson, Diane E. Pataki, Benjamin L. Ruddell, Meredith K. Steele, Tara L.E. Trammell

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Urban ecosystems are widely hypothesized to be more ecologically homogeneous than natural ecosystems. We argue that urban plant communities assemble from a complex mix of horticultural and regional species pools, and evaluate the homogenization hypothesis by comparing cultivated and spontaneously occurring urban vegetation to natural area vegetation across seven major U.S. cities. There was limited support for homogenization of urban diversity, as the cultivated and spontaneous yard flora had greater numbers of species than natural areas, and cultivated phylogenetic diversity was also greater. However, urban yards showed evidence of homogenization of composition and structure. Yards were compositionally more similar across regions than were natural areas, and tree density was less variable in yards than in comparable natural areas. This homogenization of biodiversity likely reflects similar horticultural source pools, homeowner preferences, and management practices across U.S. cities.

Original languageEnglish (US)
Article numbere02105
JournalEcosphere
Volume9
Issue number2
DOIs
StatePublished - Feb 1 2018

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homogenization
homeowners
urban ecosystem
vegetation
species pool
homeowner
ecosystems
plant community
plant communities
management practice
flora
biodiversity
phylogenetics
natural area
ecosystem
phylogeny
city

Keywords

  • aridity
  • ecosystem services
  • functional traits
  • phylogenetic diversity
  • plants
  • urban ecology

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

Cite this

Pearse, W. D., Cavender-Bares, J., Hobbie, S. E., Avolio, M. L., Bettez, N., Roy Chowdhury, R., ... Trammell, T. L. E. (2018). Homogenization of plant diversity, composition, and structure in North American urban yards. Ecosphere, 9(2), [e02105]. https://doi.org/10.1002/ecs2.2105

Homogenization of plant diversity, composition, and structure in North American urban yards. / Pearse, William D.; Cavender-Bares, Jeannine; Hobbie, Sarah E.; Avolio, Meghan L.; Bettez, Neil; Roy Chowdhury, Rinku; Darling, Lindsay E.; Groffman, Peter M.; Grove, J. Morgan; Hall, Sharon; Heffernan, James B.; Learned, Jennifer; Neill, Christopher; Nelson, Kristen C.; Pataki, Diane E.; Ruddell, Benjamin L.; Steele, Meredith K.; Trammell, Tara L.E.

In: Ecosphere, Vol. 9, No. 2, e02105, 01.02.2018.

Research output: Contribution to journalArticle

Pearse, WD, Cavender-Bares, J, Hobbie, SE, Avolio, ML, Bettez, N, Roy Chowdhury, R, Darling, LE, Groffman, PM, Grove, JM, Hall, S, Heffernan, JB, Learned, J, Neill, C, Nelson, KC, Pataki, DE, Ruddell, BL, Steele, MK & Trammell, TLE 2018, 'Homogenization of plant diversity, composition, and structure in North American urban yards', Ecosphere, vol. 9, no. 2, e02105. https://doi.org/10.1002/ecs2.2105
Pearse WD, Cavender-Bares J, Hobbie SE, Avolio ML, Bettez N, Roy Chowdhury R et al. Homogenization of plant diversity, composition, and structure in North American urban yards. Ecosphere. 2018 Feb 1;9(2). e02105. https://doi.org/10.1002/ecs2.2105
Pearse, William D. ; Cavender-Bares, Jeannine ; Hobbie, Sarah E. ; Avolio, Meghan L. ; Bettez, Neil ; Roy Chowdhury, Rinku ; Darling, Lindsay E. ; Groffman, Peter M. ; Grove, J. Morgan ; Hall, Sharon ; Heffernan, James B. ; Learned, Jennifer ; Neill, Christopher ; Nelson, Kristen C. ; Pataki, Diane E. ; Ruddell, Benjamin L. ; Steele, Meredith K. ; Trammell, Tara L.E. / Homogenization of plant diversity, composition, and structure in North American urban yards. In: Ecosphere. 2018 ; Vol. 9, No. 2.
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