Small isolated aspen stands enrich bird communities in southwestern ponderosa pine forests

Kerry L. Griffis-Kyle, Paul Beier

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Small aspen stands are disappearing from the landscape in the Southwest, so it is important to understand their contribution to the avian community. We sampled birds in 53 small, isolated aspen stands and 53 paired plots within the ponderosa pine forest in northern Arizona, during the 1996 and 1997 breeding seasons. Bird species richness and abundance were higher in aspen than in pine. However, bird species richness and abundance did not vary with size of the aspen patch or isolation index. In addition, direct ordination of species distributions with habitat factors suggested no distinct avian communities. This suggests that aspen stands do not harbor separate populations, but rather are locations where the regional avifauna reaches high local density and richness and may be crucial to birds in years of resource scarcity. Thus it is important for avian conservation to maintain many aspen stands across the landscape, encompassing a diversity of vegetation structure and composition.

Original languageEnglish (US)
Pages (from-to)375-385
Number of pages11
JournalBiological Conservation
Volume110
Issue number3
DOIs
StatePublished - Apr 2003

Fingerprint

Pinus ponderosa
coniferous forests
species richness
bird
resource scarcity
avifauna
birds
vegetation structure
ordination
breeding season
harbor
species diversity
habitat
biogeography
Pinus
bird species
habitats
index
distribution

Keywords

  • Area
  • Birds
  • Habitat
  • Isolation
  • Pinus ponderosa
  • Populus tremuloides

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

Cite this

Small isolated aspen stands enrich bird communities in southwestern ponderosa pine forests. / Griffis-Kyle, Kerry L.; Beier, Paul.

In: Biological Conservation, Vol. 110, No. 3, 04.2003, p. 375-385.

Research output: Contribution to journalArticle

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