Carry-over effects provide linkages across the annual cycle of a Neotropical migratory bird, the Louisiana WaterthrushParkesia motacilla

Ibis ◽  
2016 ◽  
Vol 158 (2) ◽  
pp. 395-406 ◽  
Author(s):  
Steven C. Latta ◽  
Sonia Cabezas ◽  
Danilo A. Mejia ◽  
Maria M. Paulino ◽  
Hodali Almonte ◽  
...  
Author(s):  
Martins Briedis ◽  
Miloš Krist ◽  
Miroslav Král ◽  
Christian C. Voigt ◽  
Peter Adamík

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Cosme López Calderón ◽  
Javier Balbontín Arenas ◽  
Keith A. Hobson ◽  
Anders Pape Møller

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Cosme López Calderón ◽  
Javier Balbontín Arenas ◽  
Keith A. Hobson ◽  
Anders Pape Møller

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Fabrizio Sergio ◽  
Giacomo Tavecchia ◽  
Alessandro Tanferna ◽  
Julio Blas ◽  
Guillermo Blanco ◽  
...  

AbstractThe annual cycle of most animals is structured into discrete stages, such as breeding, migration and dispersal. While there is growing appreciation of the importance of different stages of an organism’s annual cycle for its fitness and population dynamics, almost nothing is known about if and how such seasonal effects can change through a species lifespan. Here, we take advantage of the opportunity offered by a long-term satellite/GPS-tracking study and a reliable method of remote death-detection to show that certain stages of both the annual and life cycle of a migratory long-lived raptor, the Black kite Milvus migrans, may represent sensitive bottlenecks for survival. In particular, migratory journeys caused bursts of concentrated-mortality throughout life, but the relative importance of stage-specific survival changed with age. On the other hand, the balance between short-stages of high mortality and long-stages of low mortality made population-growth similarly dependent on all portions of the annual cycle. Our results illustrate how the population dynamics of migratory organisms can be inextricably linked to ecological pressures balanced over multiple stages of the annual cycle and thus multiple areas of the globe, suggesting the frequent need for challenging conservation strategies targeting all portions of a species year-round range.


PLoS ONE ◽  
2014 ◽  
Vol 9 (2) ◽  
pp. e86588 ◽  
Author(s):  
Nathan R. Senner ◽  
Wesley M. Hochachka ◽  
James W. Fox ◽  
Vsevolod Afanasyev

2017 ◽  
Vol 86 (2) ◽  
pp. 239-249 ◽  
Author(s):  
Nicola Saino ◽  
Roberto Ambrosini ◽  
Manuela Caprioli ◽  
Andrea Romano ◽  
Maria Romano ◽  
...  

2015 ◽  
Vol 282 (1800) ◽  
pp. 20142085 ◽  
Author(s):  
N. Jane Harms ◽  
Pierre Legagneux ◽  
H. Grant Gilchrist ◽  
Joël Bêty ◽  
Oliver P. Love ◽  
...  

For birds, unpredictable environments during the energetically stressful times of moulting and breeding are expected to have negative fitness effects. Detecting those effects however, might be difficult if individuals modulate their physiology and/or behaviours in ways to minimize short-term fitness costs. Corticosterone in feathers (CORTf) is thought to provide information on total baseline and stress-induced CORT levels at moulting and is an integrated measure of hypothalamic–pituitary–adrenal activity during the time feathers are grown. We predicted that CORTf levels in northern common eider females would relate to subsequent body condition, reproductive success and survival, in a population of eiders nesting in the eastern Canadian Arctic during a capricious period marked by annual avian cholera outbreaks. We collected CORTf data from feathers grown during previous moult in autumn and data on phenology of subsequent reproduction and survival for 242 eider females over 5 years. Using path analyses, we detected a direct relationship between CORTf and arrival date and body condition the following year. CORTf also had negative indirect relationships with both eider reproductive success and survival of eiders during an avian cholera outbreak. This indirect effect was dramatic with a reduction of approximately 30% in subsequent survival of eiders during an avian cholera outbreak when mean CORTf increased by 1 standard deviation. This study highlights the importance of events or processes occurring during moult on subsequent expression of life-history traits and relation to individual fitness, and shows that information from non-destructive sampling of individuals can track carry-over effects across seasons.


2017 ◽  
Vol 24 (2) ◽  
pp. 823-835 ◽  
Author(s):  
Barbara M. Tomotani ◽  
Henk Jeugd ◽  
Phillip Gienapp ◽  
Iván Hera ◽  
Jos Pilzecker ◽  
...  

PLoS ONE ◽  
2013 ◽  
Vol 8 (10) ◽  
pp. e77783 ◽  
Author(s):  
Xavier A. Harrison ◽  
David J. Hodgson ◽  
Richard Inger ◽  
Kendrew Colhoun ◽  
Gudmundur A. Gudmundsson ◽  
...  

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