scholarly journals Metapopulation dynamics and foraging plasticity in a highly vagile seabird, the southern rockhopper penguin

2020 ◽  
Vol 10 (7) ◽  
pp. 3346-3355
Author(s):  
Nicolás A. Lois ◽  
Leonardo Campagna ◽  
Ulises Balza ◽  
Michael J. Polito ◽  
Klemens Pütz ◽  
...  

PLoS ONE ◽  
2013 ◽  
Vol 8 (11) ◽  
pp. e79487 ◽  
Author(s):  
Nina Dehnhard ◽  
Katrin Ludynia ◽  
Maud Poisbleau ◽  
Laurent Demongin ◽  
Petra Quillfeldt




Polar Biology ◽  
2008 ◽  
Vol 31 (8) ◽  
pp. 925-932 ◽  
Author(s):  
Maud Poisbleau ◽  
Laurent Demongin ◽  
Ian J. Strange ◽  
Helen Otley ◽  
Petra Quillfeldt


2009 ◽  
Vol 206 (4) ◽  
pp. 485-496 ◽  
Author(s):  
J. P. Croxall ◽  
P. A. Prince ◽  
A. Baird ◽  
P. Ward




2020 ◽  
Author(s):  
Isabel Martínez ◽  
David Christie ◽  
Francesc Jutglar ◽  
Ernest Garcia ◽  
Guy M. Kirwan


Polar Biology ◽  
2007 ◽  
Vol 31 (4) ◽  
pp. 465-474 ◽  
Author(s):  
Marcela Liljesthröm ◽  
Steven D. Emslie ◽  
Dargan Frierson ◽  
Adrián Schiavini


2015 ◽  
Vol 11 (9) ◽  
pp. 20150429 ◽  
Author(s):  
Jean-Baptiste Thiebot ◽  
Charles-André Bost ◽  
Nina Dehnhard ◽  
Laurent Demongin ◽  
Marcel Eens ◽  
...  

Strong pair bonds generally increase fitness in monogamous organisms, but may also underlie the risk of hampering it when re-pairing fails after the winter season. We investigated whether partners would either maintain contact or offset this risk by exploiting sex-specific favourable niches during winter in a migratory monogamous seabird, the southern rockhopper penguin Eudyptes chrysocome . Using light-based geolocation, we show that although the spatial distribution of both sexes largely overlapped, pair-wise mates were located on average 595 ± 260 km (and up to 2500 km) apart during winter. Stable isotope data also indicated a marked overlap between sex-specific isotopic niches ( δ 13 C and δ 15 N values) but a segregation of the feeding habitats ( δ 13 C values) within pairs. Importantly, the tracked females remained longer (12 days) at sea than males, but all re-mated with their previous partners after winter. Our study provides multiple evidence that migratory species may well demonstrate pair-wise segregation even in the absence of sex-specific winter niches (spatial and isotopic). We suggest that dispersive migration patterns with sex-biased timings may be a sufficient proximal cause for generating such a situation in migratory animals.



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