A rare melanistic chinstrap penguin Pygoscelis antarcticus at Penguin Island, Maritime Antarctica

Polar Biology ◽  
2017 ◽  
Vol 40 (9) ◽  
pp. 1919-1921
Author(s):  
Júlia Victória Grohmann Finger ◽  
Gustavo Francisco Aver ◽  
Natália Mossmann Koch ◽  
Maria Virginia Petry
Viruses ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 858 ◽  
Author(s):  
Hila Levy ◽  
Steven R. Fiddaman ◽  
Anni Djurhuus ◽  
Caitlin E. Black ◽  
Simona Kraberger ◽  
...  

Circoviruses infect a variety of animal species and have small (~1.8–2.2 kb) circular single-stranded DNA genomes. Recently a penguin circovirus (PenCV) was identified associated with an Adélie Penguin (Pygoscelis adeliae) with feather disorder and in the cloacal swabs of three asymptomatic Adélie Penguins at Cape Crozier, Antarctica. A total of 75 cloacal swab samples obtained from adults and chicks of three species of penguin (genus: Pygoscelis) from seven Antarctic breeding colonies (South Shetland Islands and Western Antarctic Peninsula) in the 2015−2016 breeding season were screened for PenCV. We identified new variants of PenCV in one Adélie Penguin and one Chinstrap Penguin (Pygoscelis antarcticus) from Port Charcot, Booth Island, Western Antarctic Peninsula, a site home to all three species of Pygoscelid penguins. These two PenCV genomes (length of 1986 nucleotides) share > 99% genome-wide nucleotide identity with each other and share ~87% genome-wide nucleotide identity with the PenCV sequences described from Adélie Penguins at Cape Crozier ~4400 km away in East Antarctica. We did not find any evidence of recombination among PenCV sequences. This is the first report of PenCV in Chinstrap Penguins and the first detection outside of Ross Island, East Antarctica. Given the limited knowledge on Antarctic animal viral diversity, future samples from Antarctic wildlife should be screened for these and other viruses to determine the prevalence and potential impact of viral infections.


2020 ◽  
Author(s):  
Isabel Martínez ◽  
David Christie ◽  
Francesc Jutglar ◽  
Ernest Garcia

Polar Biology ◽  
2012 ◽  
Vol 35 (11) ◽  
pp. 1681-1689 ◽  
Author(s):  
M. Korczak-Abshire ◽  
K. J. Chwedorzewska ◽  
P. Wąsowicz ◽  
P. T. Bednarek

2018 ◽  
Vol 30 (4) ◽  
pp. 220-226 ◽  
Author(s):  
Maria V. Petry ◽  
Fernanda C.L. Valls ◽  
Elisa S. Petersen ◽  
Júlia V.G. Finger ◽  
Lucas Krüger

AbstractAvailable information about seabird breeding population trends on Stinker Point (Elephant Island, Maritime Antarctic Peninsula) is outdated by decades. This study reports current numbers of breeding species, and evaluates population trends over 28 years. We counted breeding pairs of seabirds along all ice-free areas on Stinker Point during two distinct periods (summers of 1985/86–1991/92 and 2009/10–2013/14). Thirteen species currently breed in the area: four Sphenisciformes, four Procellariiformes, one Suliforme and four Charadriiformes. Chinstrap penguin Pygoscelis antarcticus has the highest number of breeding pairs (4971±590), followed by gentoo penguin Pygoscelis papua (1242±339). Comparisons between the two intervals showed declining trends for almost all breeding populations, although southern giant petrels Macronectes giganteus are experiencing a subtle population growth. Population decreases in locations with low human disturbance, such as Stinker Point, may indicate sensibility to climate and environmental change and need further investigation.


2016 ◽  
Vol 562 ◽  
pp. 802-811 ◽  
Author(s):  
A. Thomazini ◽  
M.R. Francelino ◽  
A.B. Pereira ◽  
A.L. Schünemann ◽  
E.S. Mendonça ◽  
...  

2015 ◽  
Vol 521-522 ◽  
pp. 336-345 ◽  
Author(s):  
A. Thomazini ◽  
E.S. Mendonça ◽  
D.B. Teixeira ◽  
I.C.C. Almeida ◽  
N. La Scala ◽  
...  

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