Creating a homogeneous avifauna

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)

Abstract

I compared birds on urban gradients in two ecoregions of the United States by censusing summer resident bird populations at six sites in central California's coastal chaparral and southwest Ohio's eastern broadleaf forest. These sites represented comparable gradients of urban land-use which ranged from relatively undisturbed to highly developed and included biological preserves, recreational areas, golf courses, residential neighborhoods, office parks (or apartment complexes), and business districts. Species richness and Shannon diversity peaked at moderately disturbed sites and were significantly correlated between comparable land-use types in the two ecoregions. Bird abundance and biomass peaked at moderately disturbed sites as well but were not significantly correlated between ecoregions. The pre-development bird species (assumed to be those found at the most undisturbed sites) dropped out gradually as the sites became more urban and the number of remaining species was significantly correlated between ecoregions with only three (CA) and one (OH) species remaining in the most urban sites. Taxonomically, the bird communities at the least urbanized sites (the preserves and recreational areas) were very different with an average Jaccard's index of species similarity of 0.065 while the most disturbed sites (the business district, apartment complexes/office park, residential areas and golf courses) had an average similarity of 0.185. The species assemblages along the gradient shifted gradually, demonstrating local extinction of and local invasion by different species as the sites become more urban.

Original languageEnglish (US)
Title of host publicationUrban Ecology
Subtitle of host publicationAn International Perspective on the Interaction Between Humans and Nature
PublisherSpringer US
Pages405-424
Number of pages20
ISBN (Print)9780387734118
DOIs
StatePublished - Dec 1 2008

Fingerprint

avifauna
ecoregion
bird
golf course
land use
chaparral
local extinction
urban site
species richness
biomass
summer

Keywords

  • Conservation
  • diversity
  • extinction
  • gradient
  • homogenization
  • invasion
  • urbanization

Cite this

Blair, R. B. (2008). Creating a homogeneous avifauna. In Urban Ecology: An International Perspective on the Interaction Between Humans and Nature (pp. 405-424). Springer US. https://doi.org/10.1007/978-0-387-73412-5_27

Creating a homogeneous avifauna. / Blair, Robert B.

Urban Ecology: An International Perspective on the Interaction Between Humans and Nature. Springer US, 2008. p. 405-424.

Research output: Chapter in Book/Report/Conference proceedingChapter

Blair, RB 2008, Creating a homogeneous avifauna. in Urban Ecology: An International Perspective on the Interaction Between Humans and Nature. Springer US, pp. 405-424. https://doi.org/10.1007/978-0-387-73412-5_27
Blair RB. Creating a homogeneous avifauna. In Urban Ecology: An International Perspective on the Interaction Between Humans and Nature. Springer US. 2008. p. 405-424 https://doi.org/10.1007/978-0-387-73412-5_27
Blair, Robert B. / Creating a homogeneous avifauna. Urban Ecology: An International Perspective on the Interaction Between Humans and Nature. Springer US, 2008. pp. 405-424
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