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FACTORS INFLUENCING NONTARGET BIRD OCCUPANCY OF RESTORED WETLANDS IN CALIFORNIA’S CENTRAL VALLEY

Identification

Clé publique

doi:10.21199/wb47.2.3

Auteurs

Sharon N. Kahara · WALTER G. DUFFY · RYAN DiGAUDIO · ROSEMARY RECORDS

Année déclarée

2016

Langue déclarée

en

Type source

article

Première détection

2026-11-09T19:17:28.411293+00:00

Dernière observation des métadonnées

2026-11-09T19:17:28.411293+00:00

Dernière vérification HTTP

Non effectuée

Institutions déclarées par la source

Cal Poly Humboldt · Colorado State University · Point Blue Conservation Science

Résumé documentaire — langue originale

Intensively managed restored wetlands and flooded croplands of California’s Central Valley support millions of wintering waterbirds. While the benefits to wintering waterfowl are well documented, the effect of intensive management on birds at other times of the year is less clear. Practices such as drainage, mowing, disking and burning may be a nuisance to these nontarget birds at best or life threatening at worst. Alternatively, irrigation over the summer may create habitat that might otherwise be lacking in the dry season. Our objective was to assess the influence of management, adjacent land use, and habitat characteristics on the richness, diversity, and occupancy of birds other than waterfowl in the spring and summer. We conducted 640 bird surveys on restored wetlands managed at varying levels in 2008 (4 April–30 July) and 2009 (19 April–16 July) and used likelihood-based modeling to evaluate occupancy and the relative importance of intensity of management and various environmental factors. Management was not the most important predictor of the richness, diversity, or occupancy of nontarget birds in the summer; rather, variables such as wetland size, vegetation composition, and landscape characteristics were more important for most bird guilds. Contrary to the commonly held view that restored wetlands in California’s Central Valley support only wintering waterfowl, they also support a diverse avifauna year round regardless of how they are managed. Bird occupancy and diversity in restored wetlands may be enhanced by creating and maintaining large, complex mosaics of vegetation.

Identifiants

OPENALEX

W2416424065

DOI

10.21199/wb47.2.3

Repères documentaires

Famille documentaire

Doctrine

Types déclarés par les sources

article

Entités naturelles mentionnées

Zone humide · Paysage

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Sources

OpenAlex · Document 1 · Document 2

• DOI · https://doi.org/10.21199/wb47.2.3
• OpenAlex · https://openalex.org/W2416424065

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