Auflistung nach Autor "Quillfeldt, Petra"
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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 ... -
Haemosporidian blood parasites of passerine birds in north-western Siberia
Yusupova, Dina A.; Schumm, Yvonne R.; Sokolov, Aleksandr A.; Quillfeldt, Petra (2023)Host–parasite interactions include effects on both proximate and ultimate levels: parasite infections affect individual’s fitness and play a significant role in shaping the life history of host species. Global environmental ... -
Half a world apart? Overlap in nonbreeding distributions of Atlantic and Indian Ocean thin-billed prions
Quillfeldt, Petra; Cherel, Yves; Masello, Juan F.; Delord, Karine; McGill, Rona A. R.; Furness, Robert W.; Moodley, Yoshan; Weimerskirch, Henri (2015)Distant populations of animals may share their non-breeding grounds or migrate to distinct areas, and this may have important consequences for population differentiation and dynamics. Small burrow-nesting seabirds provide ... -
Hemosporidian blood parasites in seabirds - a comparative genetic study of species from Antarctic to tropical habitats
Quillfeldt, Petra; Martínez, Javier; Hennicke, Janos; Ludynia, Katrin; Gladbach, Anja; Masello, Juan F.; Riou, Samuel; Merino, Santiago (2010)Whereas some bird species are heavily affected by blood parasites in the wild, others reportedly are not. Seabirds, in particular, are often free from blood parasites, even in the presence of potential vectors. By means ... -
Hidden dichromatism in the Burrowing Parrot (Cyanoliseus patagonus) as revealed by spectrometric colour analysis
Masello, Juan F.; Lubjuhn, Thomas; Quillfeldt, Petra (2009)Bird colour perception differs fundamentally from that of humans. Birds have more cone types in the retina, including UV or violet cones, which enable them to perceive a wider spectral range. Thus, human colour perception ... -
High prevalence of Trichomonas gallinae in wild columbids across western and southern Europe
Marx, Melanie; Reiner, Gerald; Willems, Hermann; Rocha, Gregorio; Hillerich, Klaus; Masello, Juan F.; Mayr, Sylvia L.; Moussa, Sarah; Dunn, Jenny C.; Thomas, Rebecca C.; Goodman, Simon J.; Hamer, Keith C.; Metzger, Benjamin; Cecere, Jacopo G.; Spina, Fernando; Koschkar, Steffen; Calderón, Luciano; Romeike, Tanja; Quillfeldt, Petra (2017)Background: Avian trichomonosis is known as a widespread disease in columbids and passerines, and recent findings have highlighted the pathogenic character of some lineages found in wild birds. Trichomonosis can affect ... -
High-coverage genomes to elucidate the evolution of penguins
Pan, Hailin; Cole, Theresa L; Bi, Xupeng; Fang, Miaoquan; Zhou, Chengran; Yang, Zhengtao; Ksepka, Daniel T; Hart, Tom; Bouzat, Juan L; Argilla, Lisa S; Bertelsen, Mads F; Boersma, P Dee; Bost, Charles-André; Cherel, Yves; Dann, Peter; Fiddaman, Steven R; Howard, Pauline; Labuschagne, Kim; Mattern, Thomas; Miller, Gary; Parker, Patricia; Phillips, Richard A; Quillfeldt, Petra; Ryan, Peter G; Taylor, Helen; Thompson, David R; Young, Melanie J; Ellegaard, Martin R; Gilbert, M Thomas P; Sinding, Mikkel-Holger S; Pacheco, George; Shepherd, Lara D; Tennyson, Alan J D; Grosser, Stefanie; Kay, Emily; Nupen, Lisa J; Ellenberg, Ursula; Houston, David M; Reeve, Andrew Hart; Johnson, Kathryn; Masello, Juan F; Stracke, Thomas; McKinlay, Bruce; Borboroglu, Pablo García; Zhang, De-Xing; Zhang, Guojie (2019-09-01)Background: Penguins (Sphenisciformes) are a remarkable order of flightless wing-propelled diving seabirds distributed widely across the southern hemisphere. They share a volant common ancestor with Procellariiformes close ... -
House mouse colonization patterns on the sub-Antarctic Kerguelen Archipelago suggest singular primary invasions and resilience against re-invasion
Hardouin, Emilie A.; Chapuis, Jean-Louis; Stevens, Mark I.; van Vuuren, Jansen Bettine; Quillfeldt, Petra; Scavetta, Rick J.; Teschke, Meike; Tautz, Diethard (2010)Background: Starting from Western Europe, the house mouse (Mus musculus domesticus) has spread across the globe in historic times. However, most oceanic islands were colonized by mice only within the past 300 years. This ... -
How animals distribute themselves in space: energy landscapes of Antarctic avian predators
Masello, Juan F.; Barbosa, Andres; Kato, Akiko; Mattern, Thomas; Medeiros, Renata; Stockdale, Jennifer E.; Kümmel, Marc N.; Bustamante, Paco; Belliure, Josabel; Benzal, Jesús; Colominas-Ciuró, Roger; Menéndez-Blázquez, Javier; Griep, Sven; Goesmann, Alexander; Symondson, William O. C.; Quillfeldt, Petra (2021) -
How animals distribute themselves in space: energy landscapes of Antarctic avian predators
Masello, Juan F.; Barbosa, Andres; Kato, Akiko; Mattern, Thomas; Medeiros, Renata; Stockdale, Jennifer E.; Kümmel, Marc N.; Bustamante, Paco; Belliure, Josabel; Benzal, Jesús; Colominas-Ciuró, Roger; Menéndez-Blázquez, Javier; Grieß, Sven; Goesmann, Alexander; Symondson, William O. C.; Quillfeldt, Petra (2021)Background: Energy landscapes provide an approach to the mechanistic basis of spatial ecology and decision-making in animals. This is based on the quantification of the variation in the energy costs of movements through a ... -
How animals distribute themselves in space: variable energy landscapes
Masello, Juan F.; Kato, Akiko; Sommerfeld, Julia; Mattern, Thomas; Quillfeldt, Petra (2017)Background: Foraging efficiency determines whether animals will be able to raise healthy broods, maintain their own condition, avoid predators and ultimately increase their fitness. Using accelerometers and GPS loggers, ... -
Important At-Sea Areas of Colonial Breeding Marine Predators on the Southern Patagonian Shelf
Baylis, Alastair M M; Tierney, Megan; Orben, Rachael A; Warwick-Evans, Victoria; Wakefield, Ewan; Grecian, W James; Trathan, Phil; Reisinger, Ryan; Ratcliffe, Norman; Croxall, John; Campioni, Letizia; Catry, Paulo; Crofts, Sarah; Boersma, P Dee; Galimberti, Filippo; Granadeiro, José P; Handley, Jonathan; Hayes, Sean; Hedd, April; Masello, Juan F; Montevecchi, William A; Pütz, Klemens; Quillfeldt, Petra; Rebstock, Ginger A; Sanvito, Simona; Staniland, Iain J; Brickle, Paul (2019-06-11)The Patagonian Shelf Large Marine Ecosystem supports high levels of biodiversity and endemism and is one of the most productive marine ecosystems in the world. Despite the important role marine predators play in structuring ... -
Independent evolution of intermediate bill widths in a seabird clade
Masello, Juan F.; Ryan, Peter G.; Shepherd, Lara D.; Quillfeldt, Petra; Cherel, Yves; Tennyson, Alan J. D.; Alderman, Rachael; Calderón, Luciano; Cole, Theresa L.; Cuthbert, Richard J.; Dilley, Ben J.; Massaro, Melanie; Miskelly, Colin M.; Navarro, Joan; Phillips, Richard A.; Weimerskirch, Henri; Moodley, Yoshan (2022) -
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 ... -
Influence of Species-Specific Feeding Ecology on Mercury Concentrations in Seabirds Breeding on the Chatham Islands, New Zealand
Thébault, Justine; Bustamante, Paco; Massaro, Melanie; Taylor, Graeme; Quillfeldt, Petra (2021) -
Influence of Species-Specific Feeding Ecology on Mercury Concentrations in Seabirds Breeding on the Chatham Islands, New Zealand
Thébault, Justine; Bustamante, Paco; Massaro, Melanie; Taylor, Graeme; Quillfeldt, Petra (2021-02-01)Mercury (Hg) is a toxic metal that accumulates in organisms and biomagnifies along food webs; hence, long-lived predators such as seabirds are at risk as a result of high Hg bioaccumulation. Seabirds have been widely used ... -
Interactions between commercial fishing vessels and a pelagic seabird in the southern Mediterranean Sea
Cianchetti-Benedetti, Marco; Dell´Omo, G.; Russo, T.; Catoni, C.; Quillfeldt, Petra (2018)BACKGROUND: Fishing activities can influence foraging behaviour of many seabird species worldwide. Seabirds are attracted by fishing vessels which can facilitate access to demersal fish as a novel food resource that otherwise ... -
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 ... -
Isolation of tetranucleotide microsatellite loci in the burrowing parrot (Cyanoliseus patagonus)
Klauke, Nadine; Masello, Juan F.; Quillfeldt, Petra; Segelbacher, Gernot (2009)We isolated seven novel polymorphic microsatellite DNA loci from the burrowing parrot (Cyanoliseus patagonus) and optimised them for future studies of population differentiation and genetic variation. The loci were screened ... -
Leucocytes in adult burrowing parrots Cyanoliseus patagonus in the wild: variation between contrasting breeding seasons, gender, and individual condition
Plischke, Andreas; Quillfeldt, Petra; Lubjuhn, Thomas; Merino, Santiago; Masello, Juan F. (2010)Wild birds exposed to stressors may modulate their investment in immunity. We studied the leucocytes of breeding burrowing parrots (Cyanoliseus patagonus) in Patagonia during five breeding seasons, during which global ...