Geolocator-tracked variation in migratory behavior of Lark Sparrows (data from Ross et al. 2014)-light levels

No Thumbnail Available
Date
2014-08-12
DOI
https://doi.org/10.5441/001/1.5jd56s8h/1
Authors
Citation
Ross JD, Bridge ES, Rozmarynowycz MJ, Bingman VP. 2014. Geolocator-tracked variation in migratory behavior of Lark Sparrows (data from Ross et al. 2014)-light levels. Movebank Data Repository. https://doi.org/10.5441/001/1.5jd56s8h/1
Abstract
Two general migration strategies prevail among temperate-breeding migratory songbirds of North America. Most “Eastern” birds migrate relatively directly from breeding to wintering grounds immediately after molting, whereas a substantial proportion of “Western” species depart breeding grounds early, and molt during extended migratory stopovers before reaching wintering areas. The Lark Sparrow is one of a few Western Neotropical migrants with a breeding range that extends into regions dominated by Eastern species. We sought to determine whether Eastern Lark Sparrows migrated in a manner consistent with Western conspecifics or follow typical Eastern songbird migratory patterns. To do so, we tracked individual Eastern Lark Sparrows equipped with geolocators between their breeding grounds in Ohio and their unknown wintering locations. Data from three Ohio Lark Sparrows revealed 1) individual variation in the duration and directness of autumn migrations, 2) autumn departures that consistently preceded molt, 3) wintering grounds in the central highlands of Mexico, and 4) brief and direct spring migrations. These observations suggest that eastern populations of prevailingly Western migrants, such as Lark Sparrows, may be behaviorally constrained to depart breeding grounds before molt, but may facultatively adjust migration en route.
Keywords
animal migration,animal tracking,Chondestes grammacus,Lark Sparrow,light-level loggers,breeding departure,molt,Neotropical migrant,site fidelity
Taxa
Sensors
Related Workflows
DOIs of related Publications
URI
https://datarepository.movebank.org/handle/10255/move.349
BibTex
@misc{001/1_5jd56s8h/1,
  title = {Geolocator-tracked variation in migratory behavior of Lark Sparrows (data from Ross et al. 2014)-light levels},
  author = {Ross, JD and Bridge, ES and Rozmarynowycz, MJ and Bingman, VP},
  year = {2014},
  URL = {http://dx.doi.org/10.5441/001/1.5jd56s8h/1},
  doi = {doi:10.5441/001/1.5jd56s8h/1},
  publisher = {Movebank data repository}
}
RIS
TY  - DATA
ID  - doi:10.5441/001/1.5jd56s8h/1
T1  - Geolocator-tracked variation in migratory behavior of Lark Sparrows (data from Ross et al. 2014)-light levels
AU  - Ross, Jeremy D.
AU  - Bridge, Eli S.
AU  - Rozmarynowycz, Mark J.
AU  - Bingman, Verner P.
Y1  - 2014/08/12
KW  - animal migration
KW  - animal tracking
KW  - Chondestes grammacus
KW  - Lark Sparrow
KW  - light-level loggers
KW  - breeding departure
KW  - molt
KW  - Neotropical migrant
KW  - site fidelity
KW  - Chondestes grammacus
PB  - Movebank data repository
UR  - http://dx.doi.org/10.5441/001/1.5jd56s8h/1
DO  - doi:10.5441/001/1.5jd56s8h/1
ER  -
Collections