Case series: effects of an induced molting protocol using levothyroxine in five captive banded penguins (genus Spheniscus) [PDF]
Frontiers in Veterinary SciencePenguin molts occur annually after breeding, allowing effective waterproofing and temperature regulation. However, aberrant molts frequently occur in penguins, which can lead to health problems if prolonged.
Ji-Hyung Park +3 more
doaj +2 more sources
Foot darkening with age in Spheniscus penguins: applications and functions [PDF]
PeerJThe proportions of individuals in various age classes in a population of wild animals affect population trends, behaviors, learning, and social structures.
Ginger A. Rebstock +2 more
doaj +3 more sources
Trematode-Associated Renal Lesions in Stranded Humboldt Penguins (Spheniscus humboldti) Along the Chilean Coast [PDF]
AnimalsHumboldt penguins (Spheniscus humboldti) are classified as Vulnerable and listed in Appendix I of CITES, making the investigation of stranding and mortality causes essential for their conservation.
Carlos A. Flores Olivares +7 more
doaj +2 more sources
Genetic Sexing of the African Penguin, Spheniscus demersus Using Noninvasive Guano and Molted Feather Samples [PDF]
Ecology and EvolutionThe monitoring of sex ratios in wild populations of the critically endangered African penguin Spheniscus demersus is essential for conservation management but is currently limited by the inherent difficulty in acquiring blood samples required for sexing.
Susan A. Smith +2 more
doaj +2 more sources
Population Trends of a Mixed-Species Colony of Humboldt and Magellanic Penguins in Southern Chile after Establishing a Protected Area [PDF]
Avian Conservation and Ecology, 2013 Worldwide marine protected areas (MPAs) have been designated to protect marine resources, including top predators such as seabirds. There is no conclusive information on whether protected areas can improve population trends of seabirds when these are ...
Ronnie Reyes-Arriagada +6 more
doaj +4 more sources
Multidrug-resistant Klebsiella pneumoniae ST70 harboring bla NDM in a migratory Penguin [PDF]
Scientific ReportsThe 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 +7 more
doaj +2 more sources
A fearful scourge to the penguin colonies: Southern giant petrel (Macronectes giganteus) predation on living Magellanic penguins (Spheniscus magellanicus) may be more common than assumed [PDF]
Ecology and EvolutionSouthern giant petrels (Macronectes giganteus) are important consumers that range across the oceans throughout the southern hemisphere. In Argentina, previous studies have shown they eat primarily pinnipeds and penguins, which they are assumed to ...
Eric L. Wagner +2 more
doaj +2 more sources
Microplastics in Seabird Feces from Coastal Areas of Central Chile
Animals, 2023 Pollution from plastic waste thrown into the ocean affects all levels of the food chain. Marine species of birds are affected by plastic particles of different sizes, especially the mesoplastics (1 to 10 mm) found in their digestive tract, which mainly ...
Sebastian Mendez-Sanhueza +6 more
doaj +1 more source
International Journal for Parasitology: Parasites and Wildlife, 2023 Avian haemosporidian parasites are widespread and infect birds from a broad variety of avian families with diverse consequences ranging from subclinical infections to severe and fatal disease. This study aimed to determine the occurrence and diversity of
Seraina L. Meister +4 more
doaj +1 more source
Sexual and geographic dimorphism in northern rockhopper penguins breeding in the South Atlantic Ocean [PDF]
, 2020 The Endangered northern rockhopper penguin Eudyptes moseleyi, like all penguins, is monomorphic, making sex determination of individuals in the field challenging.
Bond, AL +4 more
core +1 more source