Influence of vegetation on montane riparian bird communities in the Sky Islands of Arizona, USA

Autor:	Brian F. Powell, Robert J. Steidl
Rok vydání:	2015
Předmět:	book.periodical geography geography.geographical_feature_category biology Ecology Biodiversity Alligator juniper Understory Vegetation biology.organism_classification Juniperus deppeana Platanus wrightii Species richness book Ecology Evolution Behavior and Systematics Riparian zone
Zdroj:	The Southwestern Naturalist. 60:65-71
ISSN:	1943-6262 0038-4909
DOI:	10.1894/mcg-09.1
Popis:	Montane riparian areas across the Sky Island region of the southwestern United States and northwestern Mexico contribute disproportionally to biodiversity at local and regional scales. We explored how composition and structure of vegetation influenced species richness and community composition of songbirds breeding in riparian areas of southern Arizona. We surveyed birds and vegetation during two breeding seasons at 45 stations established across three riparian canyons in two mountain ranges. Species richness of songbirds increased as volume of understory vegetation, density of Arizona sycamore (Platanus wrightii), and density of alligator juniper (Juniperus deppeana) increased; species richness decreased as density of Acacia and Mimosa species increased and oak (Quercus) trees increased. Composition of breeding bird communities was structured along an elevation and vegetation gradient, from open-canopy desert scrub to closed-canopy oak woodlands. Richness and composition of breeding bird communi...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36ce5164b2601be5fcaa67d393fda930 https://doi.org/10.1894/mcg-09.1 Zobrazit plný text záznamu Plný text ve formátu PDF