Results 61 to 70 of about 635 (168)
Brazilian Journal of Biology, 2013 The aim of the present study was to evaluate the helminth fauna found in the Magellanic penguin, Spheniscus magellanicus, relating parasite population and community ecological parameters to life aspects of the host species.
GC. Rezende +3 more
doaj
Patterns in tern trophic diversity in a region experiencing rapid climate change
Ecosphere, Volume 16, Issue 10, October 2025.Abstract Foraging plasticity provides a mechanism for long‐lived species to adapt to rapidly changing environments. When shifts in food availability occur, individual variation in plasticity can lead to an increase in within‐species trophic diversity. We tested for drivers of trophic diversity in Arctic tern (Sterna paradisaea) and common tern (Sterna ...
Natasha J. Gownaris +2 more
wiley +1 more source
El Hornero, 2004 El objetivo de este trabajo fue caracterizar las asociaciones de alimentación multiespecíficas de aves marinas en la Ría Deseado, Santa Cruz. Durante un año, se registraron la composición específica, la abundancia de las especies presentes y la duración
Patricia B. Nasca +2 more
doaj +1 more source
Environmental and Evolutionary Forces Shaping Penguin Geographic Limits
Journal of Biogeography, Volume 52, Issue 9, September 2025.ABSTRACT Aim Penguins are seabirds exclusively found in the Southern Hemisphere, with their existence dating back to the late Cretaceous. Despite their exceptional dispersal capabilities, which allow them to inhabit a wide range of environments—from polar regions to temperate zones, and even near the Equator—penguins are absent in the Northern ...
Amanda Mourão Santos +1 more
wiley +1 more source
Penguins of Argentina: a bibliometric analysis
El Hornero, 2020 This study analyzes the scientific literature published on penguins in Argentina between 1985 and 2019. It examines the characteristics and the temporal variation in the number of publications, the total number of authors, the percentage of ...
Javier Menéndez-Blázquez
doaj +1 more source
Ecology and Evolution, Volume 15, Issue 5, May 2025.Isotope analysis of predator feces and consumed prey remains can be used to non‐invasively track diet and reconstruct past environment and climate conditions. However, one must account for the isotopic difference between diet and feces, as well as the possible influence of digestion on consumed prey tissues.
Brooke Erin Crowley +2 more
wiley +1 more source
Pesquisa Veterinária Brasileira, 2014 : Magellanic penguins (Spheniscus magellanicus) usually arrive in poor body conditions at Brazilian beaches during the winter. Hematology provides valuable information about clinical and immunity status of the animals.
Angela M. Coraiola +4 more
doaj +1 more source
Nuestras AvesLas aberraciones en el color del plumaje en aves silvestres resultan de interés ya que son poco comunes y escasamente reportadas a nivel mundial, particularmente en aves marinas.
Ian A. Walker
doaj +1 more source
The influence of tourist visitation on the heterophyl to lymphocyte ratios and trophic values of Magellanic penguins (Spheniscus magellanicus) at Martillo Island, Argentina. [PDF]
Conserv Physiol, 2023 Harris S, Scioscia G, Raya Rey A.
europepmc +1 more source
Pesquisa Veterinária Brasileira, 2013 Captive penguins are prone to pododermatitis (bumblefoot) lesions due to sedentary habits, changes in normal activity patterns, prolonged time on hard and abrasive surfaces, and less time swimming in the water.
Laura Reisfeld +6 more
doaj +1 more source