Migration ecology of western gray catbirds
department or school: Science, Irving K. Barber Faculty of (Okanagan)
department or school: Non UBC
department or school: Biology, Department of (Okanagan)
data provider: DSpace
identifier citation: Movement Ecology. 2021 Mar 17;9(1):10
rights copyright: The Author(s)
creator: Mancuso, Kristen A.
creator: Fylling, Megan A
creator: Bishop, Christine A
creator: Hodges, Karen E.
creator: Lancaster, Michael B
creator: Stone, Katharine R
issued: 2021-03-18T17:15:13Z
issued: 2021-03-17
description: Background: For many songbirds in North America, we lack movement details about the full annual cycle, notably outside the breeding season. Understanding how populations are linked spatially between breeding and overwintering periods (migratory connectivity) is crucial to songbird conservation and management. We assessed migratory connectivity for 2 breeding populations of Gray Catbirds (Dumetella carolinensis) west of and within the Rocky Mountains by determining migration routes, stopover sites, and overwintering locations. Additionally, we compared apparent annual survivorship for both populations. Methods: We deployed 39 archival light-level geolocators and 21 Global Positioning System (GPS) tags on catbirds in the South Okanagan Valley, British Columbia, Canada, and 32 geolocators and 52 GPS tags in the Bitterroot River Valley, Montana, USA. These devices allowed us to determine migration routes, stopover sites, overwintering locations, and migratory connectivity. Migratory connectivity was quantified using Mantel’s correlation. We used mark-recapture of colour banded catbirds in both sites to estimate apparent annual survivorship. Results: We retrieved 6 geolocators and 19 GPS tags with usable data. Gray Catbirds from both populations passed through the Rocky Mountains eastward before heading south towards their overwintering locations in northeastern Mexico and Texas. Stopover sites during fall migration occurred primarily in Montana, Kansas, Oklahoma, and Arkansas. Overwintering locations spanned Texas and 5 states in northeastern Mexico. Individual catbirds used up to 4 distinct sites during the overwintering period. Catbirds separated by almost 500 km during the breeding season overlapped during the non-breeding season, suggesting weak migratory connectivity among western populations (Mantel’s correlation = 0.013, P-value = 0.41). Catbird apparent annual survivorship estimates were higher in British Columbia (0.61 ± 0.06 females; 0.64 ± 0.05 males) than in…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/77563
note: RESEARCH Open AccessMigration ecology of western gray catbirdsKristen A. Mancuso1* , Megan A. Fylling2, Christine A. Bishop3, Karen E. Hodges1,Michael B. Lancaster4 and Katharine R. Stone5AbstractBackground: For many songbirds in North America, we lack movement details about the full annual cycle, notablyoutside the breeding season. Understanding how populations are linked spatially between breeding andoverwintering periods (migratory connectivity) is crucial to songbird conservation and management. We assessedmigratory connectivity for 2 breeding populations of Gray Catbirds (Dumetella carolinensis) west of and within theRocky Mountains by determining migration routes, stopover sites, and overwintering locations. Additionally, wecompared apparent annual survivorship for both populations.Methods: We deployed 39 archival light-level geolocators and 21 Global Positioning System (GPS) tags on catbirdsin the South Okanagan Valley, British Columbia, Canada, and 32 geolocators and 52 GPS tags in the Bitterroot RiverValley, Montana, USA. These devices allowed us to determine migration routes, stopover sites, overwinteringlocations, and migratory connectivity. Migratory connectivity was quantified using Mantel’s correlation. We usedmark-recapture of colour banded catbirds in both sites to estimate apparent annual survivorship.Results: We retrieved 6 geolocators and 19 GPS tags with usable data. Gray Catbirds from both populations passedthrough the Rocky Mountains eastward before heading south towards their overwintering locations in northeasternMexico and Texas. Stopover sites during fall migration occurred primarily in Montana, Kansas, Oklahoma, andArkansas. Overwintering locations spanned Texas and 5 states in northeastern Mexico. Individual catbirds used upto 4 distinct sites during the overwintering period. Catbirds separated by almost 500 km during the breedingseason overlapped during the non-breeding season, suggesting weak migratory connectivity among westernpopulati…
has type: Article
is shown at: 10.14288/1.0396163
language: eng
peer review status: Reviewed
provider: Vancouver : University of British Columbia Library
publisher: BioMed Central
publisher DOI: 10.1186/s40462-021-00249-7
rights: Attribution 4.0 International (CC BY 4.0)
rights URI: http://creativecommons.org/licenses/by/4.0/
scholar level: Faculty
subject: Dumetella carolinensis
subject: Full annual cycle
subject: Migration
subject: Migratory connectivity
subject: GPS tracking
type: Text
identifier URI: http://hdl.handle.net/2429/77563