Consulta: subjectFacets:"Stopover ecology"
Registros recuperados: 2
Data/hora: 01/06/2024 14:40:09

Modeling the Geography of Migratory Pathways and Stopover Habitats for Neotropical Migratory Birds
Provedor de dados: 7
Autores: Tankersley, Jr., Roger; Tennessee Valley Authority; rdtankersley@tva.gov; Orvis, Kenneth; ; orvis@utk.edu.
Intact migratory routes are critical for the stability of forest-dwelling, neotropical, migratory bird populations, and mortality along migratory pathways may be significant. Yet we know almost nothing about the geography of available stopovers or the possible migratory pathways that connect optimal stopovers. We undertake a spatial analysis of stopover habitat availability and then model potential migratory pathways between optimal stopovers in the eastern United States. Using models of fixed orientation and fixed nightly flight distance between stopovers during spring migration, we explore whether a simple endogenous migratory program is sufficient to ensure successful migration across the modern landscape.  Our model runs suggest that the modern...
Tipo: Peer-Reviewed Reports
Palavras-chave: Conservation; Forest fragmentation; Habitat; Migration; Modeling; Neotropical migratory birds; Stopover ecology.
Ano: 2003

Annual survival of Red Knots (Calidris canutus rufa) using the San Antonio Oeste stopover site is reduced by domino effects involving late arrival and food depletion in Delaware Bay
Provedor de dados: 68
Autores: González,Patricia M.; Baker,Allan J.; Echave,María Eugenia.
Ecological conditions in breeding and non-breeding areas of migrant birds have been linked to their annual survival and production of young, but the role of stopover sites is under-appreciated. Through banding studies and censuses along the flyway from Tierra del Fuego to the Canadian Arctic, the drastic decline in 2000-2001 of Red Knots (Calidris canutus rufa) population summering in southern South America in the northern winter was shown to be related to the overharvesting of horseshoe crabs (Limulus polyphemus) in Delaware Bay, USA, their last stopover site before reaching their breeding grounds, and to the late arrival of the birds at this site. In San Antonio Oeste, Argentina, where 25-50% of the Tierra del Fuego Red Knots population congregates every...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calidris canutus; Domino effects; Migration; Population decline; Red Knot; Stopover ecology; Ecología de escala migratoria; Efecto dominó; Migración; Playero Rojizo.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072006000200006