Auflistung nach Autor "Demongin, Laurent"
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Aspects of the breeding biology of the southern rockhopper penguin Eudyptes c. chrysocome and new consideration on the intrinsic capacity of the A-egg
Poisbleau, Maud; Demongin, Laurent; Strange, Ian J.; Otley, Helen; Quillfeldt, Petra (2008)The rockhopper penguins Eudyptes chrysocome have recently been split into the northern E. moseleyi and the southern E. chrysocome rockhopper penguin. It is therefore crucial to have a comprehensive understanding of the ... -
Diving seabirds share foraging space and time within and among species
Masello, Juan F.; Mundry, Roger; Poisbleau, Maud; Demongin, Laurent; Voigt, Christian C.; Wikelski, Martin; Quillfeldt, Petra (2010)Ecological theory predicts that animals with similar foraging strategies should not be able to coexist without segregating either in space, time or diet. In communities, intra-specific competition is thought to be more ... -
Effects of severe rains on the mortality of Southern Rockhopper Penguin (Eudyptes chrysocome) chicks and its impact on breeding success
Demongin, Laurent; Poisbleau, Maud; Strange, Ian J.; Quillfeldt, Petra (2010) -
Evaluating the impact of handling and logger attachment on foraging parameters and physiology in southern rockhopper penguins
Ludynia, Katrin; Dehnhard, Nina; Poisbleau, Maud; Demongin, Laurent; Masello, Juan F.; Quillfeldt, Petra (2012)Logger technology has revolutionised our knowledge of the behaviour and physiology of free-living animals but handling and logger attachments may have negative effects on the behaviour of the animals and their welfare. We ... -
Geographical variation in egg size dimorphism in rockhopper penguins
Demongin, Laurent; Poisbleau, Maud; Rey, Andrea Raya; Schiavini, Adrian; Quillfeldt, Petra; Eens, Marcel; Strange, Ian J. (2010)All crested penguins present a unique reversed hatching asynchrony: the larger second-laid egg (B-egg) hatches before the smaller first-laid egg (A-egg). Although both eggs often hatch, the A-chick generally dies of ... -
Good days, bad days: wind as a driver of foraging success in a flightless seabird, the southern rockhopper penguin
Dehnhard, Nina; Ludynia, Katrin; Poisbleau, Maud; Demongin, Laurent; Quillfeldt, Petra (2013)Due to their restricted foraging range, flightless seabirds are ideal models to study the short-term variability in foraging success in response to environmentally driven food availability. Wind can be a driver of upwelling ... -
Individual consistency and phenotypic plasticity in rockhopper penguins: female but not male body mass links environmental conditions to reproductive investment
Dehnhard, Nina; Eens, Marcel; Demongin, Laurent; Quillfeldt, Petra; Poisbleau, Maud (2015)In marine habitats, increasing ocean temperatures due to global climate change may distinctly reduce nutrient and consequently food availability for seabirds. Food availability is a known driver of body mass and reproductive ... -
Is individual consistency in body mass and reproductive decisions linked to individual specialization in foraging behavior in a long-lived seabird?
Dehnhard, Nina; Eens, Marcel; Sturaro, Nicolas; Lepoint, Gilles; Demongin, Laurent; Quillfeldt, Petra; Poisbleau, Maud (2016)Individual specialization in diet or foraging behavior within apparently generalist populations has been described for many species, especially in polar and temperate marine environments, where resource distribution is ... -
Limited individual phenotypic plasticity in the timing of and investment into egg laying in southern rockhopper penguins under climate change
Dehnhard, Nina; Eens, Marcel; Demongin, Laurent; Quillfeldt, Petra; Suri, Dan; Poisbleau, Maud (2015)Global climate change requires species to adapt to increasing environmental variability, rising air and ocean temperatures and many other effects, including temperature-associated phenological shifts. Species may adapt to ... -
Two eggs, two different constraints: a potential explanation for the puzzling intraclutch egg size dimorphism in Eudyptes penguins
Poisbleau, Maud; Dehnhard, Nina; Demongin, Laurent; Quillfeldt, Petra; Eens, Marcel (2015)Phenotypic plasticity and phenotypic stability are major components of the adaptive evolution of organisms to environmental variation. The invariant two-egg clutch size of Eudyptes penguins has recently been proposed to ...