scholarly journals Constructing and evaluating a continent-wide migratory songbird network across the annual cycle

2018 ◽  
Vol 88 (3) ◽  
pp. 445-460 ◽  
Author(s):  
Samantha M. Knight ◽  
David W. Bradley ◽  
Robert G. Clark ◽  
Elizabeth A. Gow ◽  
Marc Bélisle ◽  
...  
Keyword(s):  
Annual Cycle ◽  
Migratory Songbird

scholarly journals Habitat loss on the breeding grounds is a major contributor to population declines in a long-distance migratory songbird

2021 ◽  
Vol 288 (1949) ◽  
Author(s):  
Michael T. Hallworth ◽  
Erin Bayne ◽  
Emily McKinnon ◽  
Oliver Love ◽  
Junior A. Tremblay ◽  
...  
Keyword(s):  
Habitat Loss ◽  
Annual Cycle ◽  
Forest Loss ◽  
Population Declines ◽  
Migration Routes ◽  
Long Distance ◽  
Migratory Songbirds ◽  
Breeding Grounds ◽  
Migratory Songbird ◽  
Land Use Practices

Many migratory species are declining and for most, the proximate causes of their declines remain unknown. For many long-distance Neotropical migratory songbirds, it is assumed that habitat loss on breeding or non-breeding grounds is a primary driver of population declines. We integrated data collected from tracking technology, community science and remote sensing data to quantify migratory connectivity (MC), population trends and habitat loss. We quantified the correlation between forest change throughout the annual cycle and population declines of a long-distance migratory songbird, the Connecticut warbler ( Oporornis agilis , observed decline: −8.99% yr −1 ). MC, the geographic link between populations during two or more phases of the annual cycle, was stronger between breeding and autumn migration routes (MC = 0.24 ± 0.23) than between breeding and non-breeding locations (MC = −0.2 ± 0.14). Different Connecticut warbler populations tended to have population-specific fall migration routes but overlapped almost completely within the northern Gran Chaco ecoregion in South America. Cumulative forest loss within 50 km of breeding locations and the resulting decline in the largest forested patch index was correlated more strongly with population declines than forest loss on migratory stopover regions or on wintering locations in South America, suggesting that habitat loss during the breeding season is a driver of observed population declines for the Connecticut warbler. Land-use practices that retain large, forested patches within landscapes will likely benefit breeding populations of this declining songbird, but further research is needed to help inform land-use practices across the full annual cycle to minimize the impacts to migratory songbirds and abate ongoing population declines.

scholarly journals Natal dispersal driven by environmental conditions interacting across the annual cycle of a migratory songbird

2008 ◽  
Vol 105 (8) ◽  
pp. 2929-2933 ◽  
Author(s):  
C. E. Studds ◽  
T. K. Kyser ◽  
P. P. Marra
Keyword(s):  
Annual Cycle ◽  
Environmental Conditions ◽  
Natal Dispersal ◽  
Migratory Songbird

scholarly journals Annual Cycle and Migration Strategies of a Trans-Saharan Migratory Songbird: A Geolocator Study in the Great Reed Warbler

PLoS ONE ◽  
2013 ◽  
Vol 8 (10) ◽  
pp. e79209 ◽  
Author(s):  
Hilger W. Lemke ◽  
Maja Tarka ◽  
Raymond H. G. Klaassen ◽  
Mikael Åkesson ◽  
Staffan Bensch ◽  
...  
Keyword(s):  
Annual Cycle ◽  
Great Reed Warbler ◽  
Reed Warbler ◽  
Migration Strategies ◽  
Migratory Songbird ◽  
And Migration

Variation in survivorship of a migratory songbird throughout its annual cycle

2002 ◽  
Vol 71 (2) ◽  
pp. 296-308 ◽  
Author(s):  
T. Scott Sillett ◽  
Richard T. Holmes
Keyword(s):  
Annual Cycle ◽  
Migratory Songbird

scholarly journals Connecting the dots: Stopover strategies of an intercontinental migratory songbird in the context of the annual cycle

2017 ◽  
Vol 7 (17) ◽  
pp. 6716-6728 ◽  
Author(s):  
Kristina L. Paxton ◽  
Frank R. Moore
Keyword(s):  
Annual Cycle ◽  
Migratory Songbird ◽  
Connecting The Dots

scholarly journals A range-wide domino effect and resetting of the annual cycle in a migratory songbird

2019 ◽  
Vol 286 (1894) ◽  
pp. 20181916 ◽  
Author(s):  
Elizabeth A. Gow ◽  
Lauren Burke ◽  
David W. Winkler ◽  
Samantha M. Knight ◽  
David W. Bradley ◽  
...  
Keyword(s):  
Annual Cycle ◽  
Migratory Birds ◽  
Light Level ◽  
Timing Of Breeding ◽  
Domino Effect ◽  
Breeding Sites ◽  
Breeding Populations ◽  
Migratory Songbird ◽  
Carry Over ◽  
Timing Of Arrival

Latitudinal differences in timing of breeding are well documented but how such differences carry over to influence timing of events in the annual cycle of migratory birds is not well understood. We examined geographical variation in timing of events throughout the year using light-level geolocator tracking data from 133 migratory tree swallows ( Tachycineta bicolor ) originating from 12 North American breeding populations. A swallow's breeding latitude influenced timing of breeding, which then carried over to affect breeding ground departure. This resulted in subsequent effects on the arrival and departure schedules at autumn stopover locations and timing of arrival at non-breeding locations. This ‘domino effect’ between timing events was no longer apparent by the time individuals departed for spring migration. Our range-wide analysis demonstrates the lasting impact breeding latitude can have on migration schedules but also highlights how such timing relationships can reset when individuals reside at non-breeding sites for extended periods of time.

Population response to environmental productivity throughout the annual cycle in a migratory songbird

2014 ◽  
Vol 57 (1) ◽  
pp. 163-173 ◽  
Author(s):  
Andrew G. Pillar ◽  
Scott Wilson ◽  
Nancy J. Flood ◽  
Matthew W. Reudink
Keyword(s):  
Annual Cycle ◽  
Population Response ◽  
Migratory Songbird

Annual cycle of courtship behavior in the male turkey.

1968 ◽  
Vol 66 (3, Pt.1) ◽  
pp. 743-746 ◽  
Author(s):  
Wolfgang M. Schleidt
Keyword(s):  
Annual Cycle ◽  
Courtship Behavior

Annual Cycle of Sportfishing Activity at a Warmwater Discharge into Galveston Bay, Texas

1973 ◽  
Vol 102 (3) ◽  
pp. 573-577 ◽  
Author(s):  
Andre M. Landry ◽  
Kirk Strawn
Keyword(s):  
Annual Cycle ◽  
Galveston Bay
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