Results 1 to 10 of about 1,647 (115)

Case series: effects of an induced molting protocol using levothyroxine in five captive banded penguins (genus Spheniscus) [PDF]

Frontiers in Veterinary Science
Penguin 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, Seung-Hyun Seo, Sang Wha Kim, Yeong-Hun Kang   +3 more
doaj   +2 more sources

Trematode-Associated Renal Lesions in Stranded Humboldt Penguins (Spheniscus humboldti) Along the Chilean Coast [PDF]

Animals
Humboldt 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, Juan Pablo Ruíz Yañez, Gerardo Cerda, Sofía Marambio, Tomás Pino, Maximiliano Schultz, Pablo Oyarzún-Ruiz, Carlos Sandoval   +7 more
doaj   +2 more sources

Foot darkening with age in Spheniscus penguins: applications and functions [PDF]

PeerJ
The proportions of individuals in various age classes in a population of wild animals affect population trends, behaviors, learning, and social structures.
Ginger A. Rebstock, K. Pearl Wellington, P. Dee Boersma   +2 more
doaj   +3 more sources

Genetic Sexing of the African Penguin, Spheniscus demersus Using Noninvasive Guano and Molted Feather Samples [PDF]

Ecology and Evolution
The 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, Maureen V. Driscoll, Tracy A. Romano   +2 more
doaj   +2 more sources

Comparative analysis of gut viromes in four penguin species reveals diverse novel viruses and host-associated differences [PDF]

mSphere
Penguins, as distinctive marine birds, play important roles in polar and sub-Antarctic ecosystems, yet the diversity and species-specific distribution of their gut viromes remain insufficiently understood. Here, we used viral metagenomics to characterize
Kang Qi, Shuang Zhang, Xiaodong Su, Jiaheng Chen, Shiyin Huang, Yue Chen, Wang Li, Guanying Ni, Jieji Duo, Shixing Yang, Quan Shen, Xiaochun Wang, Yuwei Liu, Ping Wu, Hongfeng Yang, Likai Ji, Xiaolong Wang, Wen Zhang   +17 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, Mariett Torres, Karla Pozo, Gabriela Del Aguila, Fabián Hernandez, Camila Jacobsen, Diana Echeverry   +6 more
doaj   +1 more source

Avian haemosporidian parasites in captive and free-ranging, wild birds from zoological institutions in Switzerland: Molecular characterization and clinical importance

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, Fabia Wyss, Christian Wenker, Stefan Hoby, Walter U. Basso   +4 more
doaj   +1 more source

Descripción cariotípica de Spheniscus magellanicus (Spheniscidae)

El Hornero, 2003
En este trabajo se describe por primera vez el cariotipo y el patrón de bandas C de Spheniscus magellanicus. Se tomaron muestras de sangre periférica de tres hembras y cuatro machos en Imbé (Rio Grande do Sul, Brasil).
Mario A. Ledesma, T. R. O. Freitas, J. Da Silva, Fernanda Da Silva, R. J. Gunski   +4 more
doaj   +1 more source

Um nematodeo parasito do pinguim Spheniscus magellanicus (Forster) (Ascaridoidea, Anisakidae) A nematode parasite of the penguin Spheniscus magellanicus (Forster) (Ascaroidea, Anisakidae)

Memorias do Instituto Oswaldo Cruz, 1984
O material estudado foi coletado no "pinguim naufragado", Sphenicus magellanicus (Forster), na baia de Guanabara, Rio de Janeiro e cedido pela bióloga Carla Chediak.
Cláudia Portes Santos
doaj   +1 more source

Molecular and epidemiological surveillance of Plasmodium spp. during a mortality event affecting Humboldt penguins (Spheniscus humboldti) at a zoo in the UK

International Journal for Parasitology: Parasites and Wildlife, 2022
In 2017, a mortality event affected Humboldt penguins at Chester Zoo (UK), which coincided with the diagnosis of avian malaria (AM) in some birds. AM is found worldwide wherever a competent mosquito vector is present, but the disease is particularly ...
Merit González-Olvera, Arturo Hernandez-Colina, Tanja Himmel, Lindsay Eckley, Javier Lopez, Julian Chantrey, Matthew Baylis, Andrew P. Jackson   +7 more
doaj   +1 more source