Migratory connectivity of Golden-crowned Sparrows from two wintering regions in California

Knowledge of migratory connectivity is critical to understanding the consequences of habitat loss and climate change on migratory species. We used light-level geolocators to determine breeding locations and migratory routes of wintering Golden-crowned Sparrows (Zonotrichia atricapilla) in two region...

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Autores principales:	Cormier Renée L, Humple Diana L, Gardali Thomas, Seavy Nathaniel E
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2016
Materias:	light-level geolocation migratory divide migratory route rate of migration zonotrichia atricapilla wintering grounds Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/0b26f6559c10415e89a65a5264013134
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spelling	oai:doaj.org-article:0b26f6559c10415e89a65a52640131342021-12-02T19:17:53ZMigratory connectivity of Golden-crowned Sparrows from two wintering regions in California2084-883810.1515/ami-2016-0005https://doaj.org/article/0b26f6559c10415e89a65a52640131342016-08-01T00:00:00Zhttps://doi.org/10.1515/ami-2016-0005https://doaj.org/toc/2084-8838Knowledge of migratory connectivity is critical to understanding the consequences of habitat loss and climate change on migratory species. We used light-level geolocators to determine breeding locations and migratory routes of wintering Golden-crowned Sparrows (Zonotrichia atricapilla) in two regions of California, USA. Eight out of 9 birds tagged at coastal-wintering sites in Marin County went to breeding sites along the Gulf Coast of Alaska, while 7 out of 8 inland-wintering birds in Placer County migrated to interior sites in the Yukon, Northwest Territories, and British Columbia, Canada. Our estimate of the strength of migratory connectivity was relatively high (rm = 0.66). Coastal-wintering birds followed a coastal migration route while inland-wintering birds migrated inland. Coastalwintering birds migrated significantly farther than inland birds (3,624 km versus 2,442 km). Coastal birds traveled at a greater rate during spring migration (179 km/d) than did inland birds (118 km/d), but there was no statistical difference in the rate of fall migration (167 km/d and 111 km/d, respectively). Dates of arrival and departure, and duration of spring and fall migration, did not differ between groups, nor did return rates. Rates of return also did not differ between tagged and control birds. The distinct migration routes and breeding areas suggests that there may be more structuring in the migratory geography of the Golden-crowned Sparrow than in a simple panmictic population.Cormier Renée LHumple Diana LGardali ThomasSeavy Nathaniel EDe Gruyterarticlelight-level geolocation migratory divide migratory route rate of migration zonotrichia atricapilla wintering groundsBiology (General)QH301-705.5ENAnimal Migration, Vol 3, Iss 1, Pp 48-56 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	light-level geolocation migratory divide migratory route rate of migration zonotrichia atricapilla wintering grounds Biology (General) QH301-705.5
spellingShingle	light-level geolocation migratory divide migratory route rate of migration zonotrichia atricapilla wintering grounds Biology (General) QH301-705.5 Cormier Renée L Humple Diana L Gardali Thomas Seavy Nathaniel E Migratory connectivity of Golden-crowned Sparrows from two wintering regions in California
description	Knowledge of migratory connectivity is critical to understanding the consequences of habitat loss and climate change on migratory species. We used light-level geolocators to determine breeding locations and migratory routes of wintering Golden-crowned Sparrows (Zonotrichia atricapilla) in two regions of California, USA. Eight out of 9 birds tagged at coastal-wintering sites in Marin County went to breeding sites along the Gulf Coast of Alaska, while 7 out of 8 inland-wintering birds in Placer County migrated to interior sites in the Yukon, Northwest Territories, and British Columbia, Canada. Our estimate of the strength of migratory connectivity was relatively high (rm = 0.66). Coastal-wintering birds followed a coastal migration route while inland-wintering birds migrated inland. Coastalwintering birds migrated significantly farther than inland birds (3,624 km versus 2,442 km). Coastal birds traveled at a greater rate during spring migration (179 km/d) than did inland birds (118 km/d), but there was no statistical difference in the rate of fall migration (167 km/d and 111 km/d, respectively). Dates of arrival and departure, and duration of spring and fall migration, did not differ between groups, nor did return rates. Rates of return also did not differ between tagged and control birds. The distinct migration routes and breeding areas suggests that there may be more structuring in the migratory geography of the Golden-crowned Sparrow than in a simple panmictic population.
format	article
author	Cormier Renée L Humple Diana L Gardali Thomas Seavy Nathaniel E
author_facet	Cormier Renée L Humple Diana L Gardali Thomas Seavy Nathaniel E
author_sort	Cormier Renée L
title	Migratory connectivity of Golden-crowned Sparrows from two wintering regions in California
title_short	Migratory connectivity of Golden-crowned Sparrows from two wintering regions in California
title_full	Migratory connectivity of Golden-crowned Sparrows from two wintering regions in California
title_fullStr	Migratory connectivity of Golden-crowned Sparrows from two wintering regions in California
title_full_unstemmed	Migratory connectivity of Golden-crowned Sparrows from two wintering regions in California
title_sort	migratory connectivity of golden-crowned sparrows from two wintering regions in california
publisher	De Gruyter
publishDate	2016
url	https://doaj.org/article/0b26f6559c10415e89a65a5264013134
work_keys_str_mv	AT cormierreneel migratoryconnectivityofgoldencrownedsparrowsfromtwowinteringregionsincalifornia AT humpledianal migratoryconnectivityofgoldencrownedsparrowsfromtwowinteringregionsincalifornia AT gardalithomas migratoryconnectivityofgoldencrownedsparrowsfromtwowinteringregionsincalifornia AT seavynathaniele migratoryconnectivityofgoldencrownedsparrowsfromtwowinteringregionsincalifornia
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Migratory connectivity of Golden-crowned Sparrows from two wintering regions in California

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