Stopover and fat deposition by North American wood-warblers (Parulinae) following spring migration over the Gulf of Mexico

Oecologia ◽  
1987 ◽  
Vol 74 (1) ◽  
pp. 47-54 ◽  
Author(s):  
F. Moore ◽  
P. Kerlinger
Keyword(s):  
Gulf Of Mexico ◽  
North American ◽  
Spring Migration ◽  
Fat Deposition ◽  
Wood Warblers

scholarly journals Geolocators reveal migration routes, stopover sites, and nonbreeding dispersion in a population of Cerulean Warblers

2020 ◽  
Vol 7 (1) ◽  
pp. 19-26
Author(s):  
Clayton D Delancey ◽  
Kamal Islam ◽  
Gunnar R Kramer ◽  
Garrett J MacDonald ◽  
Alexander R Sharp ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Spring Migration ◽  
Autumn Migration ◽  
Migration Routes ◽  
Neotropical Migrant ◽  
Wood Warblers ◽  
Before And After ◽  
The Caribbean ◽  
Declining Species ◽  
Cerulean Warblers

AbstractCerulean Warblers (Setophaga cerulea) are among the fastest declining Nearctic-Neotropical migrant wood-warblers (Parulidae) in North America. Despite ongoing conservation efforts, little is known about their non-breeding distribution. In June 2016-2018, we deployed geolocators (n = 30) on adult male Cerulean Warblers in Indiana, USA, to track annual movements of individuals. Recovered geolocators (n = 4) showed that Cerulean Warblers occurred broadly throughout northern South America. Autumn migration lasted 44-71 days (n = 4), whereas spring migration lasted 37-41 days (n = 3). The average migration distance was 5268 km. During autumn migration, Cerulean Warblers made 1-4 stopovers (i.e., ≥2 days; n = 4) and 1-2 stopovers during spring migration (n = 3). When crossing the Gulf of Mexico during autumn migration, two birds stopped over after crossing, but not beforehand. Two others navigated through the Caribbean rather than crossing the Gulf of Mexico. During spring migration, one individual stopped after crossing, one individual stopped before crossing, and one individual stopped before and after crossing the Gulf of Mexico. No birds migrated through the Caribbean Islands during spring migration. These results represent novel information describing annual movements of individual Cerulean Warblers and will inform conservation efforts for this declining species.

scholarly journals Gulf of Mexico estuarine blue carbon stock, extent and flux: Mangroves, marshes, and seagrasses: A North American hotspot

2019 ◽  
Vol 653 ◽  
pp. 1253-1261 ◽  
Author(s):  
Anitra L. Thorhaug ◽  
Helen M. Poulos ◽  
Jorge López-Portillo ◽  
Jordan Barr ◽  
Ana Laura Lara-Domínguez ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
North American ◽  
Carbon Stock ◽  
Blue Carbon

Breeding latitude and timing of spring migration in songbirds crossing the Gulf of Mexico

2009 ◽  
Vol 40 (3) ◽  
pp. 309-316 ◽  
Author(s):  
Kathryn M. Langin ◽  
Peter P. Marra ◽  
Zoltán Németh ◽  
Frank R. Moore ◽  
T. Kurt Kyser ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Spring Migration

scholarly journals Increasing photoperiod stimulates the initiation of spring migratory behaviour and physiology in a facultative migrant, the pine siskin

2018 ◽  
Vol 5 (8) ◽  
pp. 180876 ◽  
Author(s):  
Ashley R. Robart ◽  
Mali M. K. McGuire ◽  
Heather E. Watts
Keyword(s):  
Experimental Test ◽  
Spring Migration ◽  
Fat Deposition ◽  
Day Length ◽  
Environmental Cues ◽  
Migratory Restlessness ◽  
Migratory Behaviour ◽  
Behavioural Changes ◽  
Short Day

The transition to a migratory state involves coordinated changes in physiology and behaviour. In species with regular, predictable (obligate) migrations, increasing day length triggers the expression of a spring migratory state and androgens play an important role in stimulating its development. By contrast, we know little about the environmental cues and endocrine mechanisms that regulate migration in species with less predictable (facultative) migrations. Here, we tested whether photoperiod stimulates a migratory state in a facultative nomadic migrant, the pine siskin ( Spinus pinus ). We exposed wintering birds to either a naturally increasing or short-day photoperiod and measured physiological and behavioural changes indicative of a migratory state. We also examined changes in circulating hormones that may play a role in the migratory transition. Natural-day, but not short-day, birds displayed physiological preparations for migration, including increases in fat deposition, and showed increased levels of migratory restlessness. We found no evidence for a role of corticosterone in the migratory transition, but testosterone may be important. This study is the first experimental test of the role of photoperiod in regulating facultative migration and demonstrates that the predictive cue used by many obligate migrants to time spring migration is also important in a facultative migrant.

HEAD-SCRATCHING AMONG NORTH AMERICAN WOOD-WARBLERS (PARULIDAE)

Ibis ◽  
2008 ◽  
Vol 120 (2) ◽  
pp. 153-170 ◽  
Author(s):  
EDWARD H. BURTT ◽  
JACK P. HAILMAN
Keyword(s):  
North American ◽  
Wood Warblers

Record of the North American southwest monsoon from Gulf of Mexico sediment cores

Geology ◽  
2005 ◽  
Vol 33 (3) ◽  
pp. 209 ◽  
Author(s):  
R.Z. Poore ◽  
M.J. Pavich ◽  
H.D. Grissino-Mayer
Keyword(s):  
Gulf Of Mexico ◽  
North American ◽  
Sediment Cores ◽  
Southwest Monsoon ◽  
American Southwest ◽  
The North ◽  
North American Southwest

Spanish Sea: The Gulf of Mexico in North American Discovery, 1500-1685

1986 ◽  
Vol 91 (2) ◽  
pp. 495
Author(s):  
Bruce B. Solnick ◽  
Robert S. Weddle
Keyword(s):  
Gulf Of Mexico ◽  
North American

Survival among Some North American Wood Warblers

Bird-Banding ◽  
1971 ◽  
Vol 42 (3) ◽  
pp. 165 ◽  
Author(s):  
J. O. L. Roberts
Keyword(s):  
North American ◽  
Wood Warblers

scholarly journals Density-dependent diversification in North American wood warblers

2008 ◽  
Vol 275 (1649) ◽  
pp. 2363-2371 ◽  
Author(s):  
Daniel L Rabosky ◽  
Irby J Lovette
Keyword(s):  
North American ◽  
Density Dependent ◽  
Wood Warblers
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