Results 1 to 10 of about 444 (122)

Feet first: Adaptive growth in magellanic penguin chicks [PDF]

Ecology and Evolution, 2021
Growing animals should allocate their limited resources in ways that maximize survival. Seabird chicks must balance the growth of features and fat reserves needed to survive on land with those needed to successfully fledge and survive at sea.
Natasha J. Gownaris, P. Dee Boersma
doaj   +2 more sources

Body site microbiota of Magellanic and king penguins inhabiting the Strait of Magellan follow species-specific patterns [PDF]

PeerJ, 2023
Animal hosts live in continuous interaction with bacterial partners, yet we still lack a clear understanding of the ecological drivers of animal-associated bacteria, particularly in seabirds. Here, we investigated the effect of body site in the structure
Manuel Ochoa-Sánchez, Eliana Paola Acuña Gomez, Lucila Moreno, Claudio A. Moraga, Katherine Gaete, Luis E. Eguiarte, Valeria Souza   +6 more
doaj   +3 more sources

A dataset on worldwide penguin diet [PDF]

Scientific Data
Studying the diet of penguins is essential for understanding their role in marine ecosystems, evaluating their responses to environmental changes, and informing conservation strategies.
Francisco Ramírez, Claudia Aparicio-Estalella, Míriam Gimeno, Marta Coll   +3 more
doaj   +2 more sources

The roots of a colony: establishment and growth of a Magellanic Penguin breeding site in Patagonia, Argentina [PDF]

PeerJ
The unique opportunity to record the establishment of seabird colonies provides key insights into population dynamics and habitat use. This is the case of the Magellanic penguin (Spheniscus magellanicus ) colony El Pedral. Located in Patagonia, Argentina,
Candela Tisera Manochio, Laura Marina Reyes, Thomas Mattern, Pablo Garcia Borboroglu   +3 more
doaj   +3 more sources

Feather Microbiota Landscapes: Biogeography and Phenology Shape Feather Microbiota Traits in a Migratory Seabird in a Subantarctic Ecosystem. [PDF]

Mol Ecol
ABSTRACT It is known that phenological changes (i.e., behavioural and sometimes morphological and physiological traits that repeat annually) influence the wildlife gut microbiota. However, it remains largely unknown to what extent geographic variation could modulate the effect that phenology has on wildlife microbiota.
Ochoa-Sánchez M, Acuña-Gómez EP, Moraga CA, Acevedo J, Valenzuela P, Eguiarte LE, Souza V.   +6 more
europepmc   +2 more sources

From mammals back to birds: Host-switch of the acanthocephalan Corynosoma australe from pinnipeds to the Magellanic penguin Spheniscus magellanicus. [PDF]

PLoS ONE, 2017
Trophically-transmitted parasites are regularly exposed to potential new hosts through food web interactions. Successful colonization, or switching, to novel hosts, occur readily when 'donor' and 'target' hosts are phylogenetically related, whereas ...
Jesús Servando Hernández-Orts, Martha Brandão, Simona Georgieva, Juan Antonio Raga, Enrique Alberto Crespo, José Luis Luque, Francisco Javier Aznar   +6 more
doaj   +2 more sources

Do penguins care about their neighborhood? Population implications of bioerosion in Magellanic penguin, Spheniscus magellanicus, at Martillo Island, Beagle Channel, Argentina. [PDF]

PLoS ONE
Intrinsic and extrinsic factors, such as bioerosion at nesting sites, regulate population dynamics and are relevant for the long-term conservation of penguins.
Gabriela Scioscia, Sabrina Harris, Adrián Schiavini, Klemens Pütz, Andrea Raya Rey   +4 more
doaj   +3 more sources

Sound Guides Object Size Choices in African Penguins Through Pitch-Size Association. [PDF]

Ann N Y Acad Sci
African penguins use auditory pitch to guide visual size choices. When hearing high‐pitched sounds, they preferentially approach and gaze at smaller objects, and when hearing low‐pitched sounds, they preferentially approach and gaze at larger ones.
Terranova F, D'Orazio F, Pilenga C, Baciadonna L, Reby D, Favaro L.   +5 more
europepmc   +2 more sources

The influence of rivers on seabird foraging ecology. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Morais JB, Chiaradia A, Reina RD.
europepmc   +2 more sources

Multidrug-resistant Klebsiella pneumoniae ST70 harboring bla NDM in a migratory Penguin [PDF]

Scientific Reports
The growing prevalence of antimicrobial resistance poses a global threat to human and animal health. In this study, we investigated the occurrence and genetic basis of antimicrobial resistance in a Magellanic Penguin (Spheniscus magellanicus) rescued off
Sandryelle Merces Freire, Annelise Kyllar, Marina Côrtes, Thiago P. G. Chagas, Felipe Pinheiro, Renata F. A. Pereira, Fabio Aguiar-Alves, Bruno Penna   +7 more
doaj   +2 more sources