Data from: Fat, weather, and date affect migratory songbirds’ departure decisions, routes, and time it takes to cross the Gulf of Mexico

When using this dataset, please cite the original article.

Deppe JL, Ward MP, Bolus RT, Diehl RH, Celis-Murillo A, Zenzal TJ Jr, Moore FR, Benson TJ, Smolinksy JA, Schofield LN, Enstrom DA, Paxton EH, Bohrer G, Beveroth TA, Raim A, Obringer RL, Delaney D, Cochran WW (2015) Fat, weather, and date affect migratory songbirds’ departure decisions, routes, and time it takes to cross the Gulf of Mexico. Proceedings of the National Academy of Sciences of the United States of America 112(46): E6331–E6338. doi:10.1073/pnas.1503381112

Additionally, please cite the Movebank data package:

Deppe JL, Ward MP, Bolus RT, Diehl RH, Celis-Murillo A, Zenzal TJJ, Moore FR, Benson TJ, Smolinsky JA, Schofield LN, Enstrom DA, Paxton EH, Bohrer G, Beveroth TA, Raim A, Obringer RL, Delaney D, Cochran WW (2016) Data from: Fat, weather, and date affect migratory songbirds’ departure decisions, routes, and time it takes to cross the Gulf of Mexico. Movebank Data Repository. doi:10.5441/001/1.12hv60k6
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Package Identifier doi:10.5441/001/1.12hv60k6  
 
Abstract Approximately two thirds of migratory songbirds in eastern North America negotiate the Gulf of Mexico (GOM), where inclement weather coupled with no refueling or resting opportunities can be lethal. However, decisions made when navigating such features and their consequences remain largely unknown due to technological limitations of tracking small animals over large areas. We used automated radio telemetry to track three songbird species (Red-eyed Vireo, Swainson’s Thrush, Wood Thrush) from coastal Alabama to the northern Yucatan Peninsula (YP) during fall migration. Detecting songbirds after crossing ∼1,000 km of open water allowed us to examine intrinsic (age, wing length, fat) and extrinsic (weather, date) variables shaping departure decisions, arrival at the YP, and crossing times. Large fat reserves and low humidity, indicative of beneficial synoptic weather patterns, favored southward departure across the Gulf. Individuals detected in the YP departed with large fat reserves and later in the fall with profitable winds, and flight durations (mean = 22.4 h) were positively related to wind profit. Age was not related to departure behavior, arrival, or travel time. However, vireos negotiated the GOM differently than thrushes, including different departure decisions, lower probability of detection in the YP, and longer crossing times. Defense of winter territories by thrushes but not vireos and species-specific foraging habits may explain the divergent migratory behaviors. Fat reserves appear extremely important to departure decisions and arrival in the YP. As habitat along the GOM is degraded, birds may be limited in their ability to acquire fat to cross the Gulf.
Keywords animal tracking, Catharus ustulatus, Env-DATA, fall migration, Gulf of Mexico, Hylocichla mustelina, migration barrier, Movebank, radio telemetry, red-eyed vireo, risk minimization, songbirds, Swainson's thrush, Vireo olivaceus, wood thrush, Yucatan Peninsula,

Fall Gulf of Mexico crossings by migratory Swainson's thrushes, wood thrushes, and red-eyed vireos (data from Deppe et al 2015) View File Details
Download: README.txt ( 13.03Kb )
Download: Fall Gulf of Mexico crossings by migratory Swainson's thrushes, wood thrushes, and red-eyed vireos (data from Deppe et al 2015).csv ( 77.56Kb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  



Fall Gulf of Mexico crossings by migratory Swainson's thrushes, wood thrushes, and red-eyed vireos (data from Deppe et al 2015)-reference-data View File Details
Download: README.txt ( 13.03Kb )
Download: Fall Gulf of Mexico crossings by migratory Swainson's thrushes, wood thrushes, and red-eyed vireos (data from Deppe et al 2015)-reference-data.csv ( 97.36Kb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  


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