scholarly journals Krill availability in adjacent Adélie and gentoo penguin foraging regions near Palmer Station, Antarctica

2021 ◽  
Author(s):  
Schuyler C. Nardelli ◽  
Megan A. Cimino ◽  
John A. Conroy ◽  
William R. Fraser ◽  
Deborah K. Steinberg ◽  
...  
Keyword(s):  
Gentoo Penguin ◽  
Palmer Station

scholarly journals Have Historical Climate Changes Affected Gentoo Penguin (Pygoscelis papua) Populations in Antarctica?

PLoS ONE ◽  
2014 ◽  
Vol 9 (4) ◽  
pp. e95375 ◽  
Author(s):  
Fabiola Peña M. ◽  
Elie Poulin ◽  
Gisele P. M. Dantas ◽  
Daniel González-Acuña ◽  
Maria Virginia Petry ◽  
...  
Keyword(s):  
Climate Changes ◽  
Gentoo Penguin ◽  
Pygoscelis Papua ◽  
Historical Climate

Diving Depths of the Gentoo Penguin (Pygoscelis papua)

The Condor ◽  
1983 ◽  
Vol 85 (4) ◽  
pp. 503 ◽  
Author(s):  
Nigel J. Adams ◽  
Christopher R. Brown
Keyword(s):  
Gentoo Penguin ◽  
Pygoscelis Papua

scholarly journals The Palmer LTER: A Long-Term Ecological Research Program at Palmer Station, Antarctica

Oceanography ◽  
1995 ◽  
Vol 8 (3) ◽  
pp. 77-86 ◽  
Author(s):  
Raymond Smith ◽  
Karen Baker ◽  
William Fraser ◽  
Eileen Hofmann ◽  
David Karl ◽  
...  
Keyword(s):  
Research Program ◽  
Ecological Research ◽  
Long Term Ecological Research ◽  
Palmer Station ◽  
Ecological Research Program

scholarly journals A New Zonal Race of the Gentoo Penguin

The Auk ◽  
1947 ◽  
Vol 64 (3) ◽  
pp. 454-455 ◽  
Author(s):  
Robert Cushman Murphy
Keyword(s):  
Gentoo Penguin

scholarly journals Existence and Features of the Myodural Bridge in Gentoo Penguins: a morphological study

2020 ◽  
Author(s):  
Cheng Chen ◽  
Sheng-bo Yu ◽  
Yan-yan Chi ◽  
Guang-yuan Tan ◽  
Bao-cheng Yan ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Dura Mater ◽  
Type I Collagen ◽  
Morphological Characteristics ◽  
Gentoo Penguin ◽  
Type I ◽  
Marine Birds ◽  
Dense Connective Tissue ◽  
Myodural Bridge ◽  
Histological Staining

AbstractRecent studies have evidenced that the anatomical structure now known as the myodural bridge (MDB) connects the suboccipital musculature to the cervical spinal dura mater (SDM). In humans, the MDB passes through both the posterior atlanto-occipital and the posterior atlanto-axial interspaces. The present authors suggest that the MDB has important physiological functions in humans. The existence of the MDB in various mammals, including flying birds (Rock pigeons and Gallus domesticus) has been previously validated. Gentoo penguins are marine birds, able to make 450 dives per day, reaching depths of up to 660 feet. Gentoo penguins are also the world’s fastest diving birds. The present study was therefore carried out to investigate the existence and characteristics of the MDB in Gentoo penguin (Pygoscelis papua), a non-flying, marine bird that can dive. While foraging, this penguin is able to reach speeds of up to 22 miles per hour. For this study, six Gentoo penguin specimens were dissected to observe the existence and composition of their MDB. Histological staining was also performed to analyze the anatomic relationships and characteristic of the MDB in the Gentoo penguin. In this study, it was found that the suboccipital musculature in the Gentoo penguin consists of the rectus capitis dorsalis minor (RCDmi) muscle and rectus capitis dorsalis major (RCDma) muscle. Dense connective tissue fibers were observed connecting these two suboccipital muscles to the spinal dura mater (SDM). This dense connective tissue bridge consists of primarily type I collagen fibers. Thus, this penguin’s MDB appears to be analogous to the MDB previously observed in humans. The present study evidences that the MDB not only exists in penguins but it also has unique features that distinguishes it from that of flying birds. Thus, this study advances the understanding of the morphological characteristics of the MDB in flightless, marine birds.

Atmospheric trace gas measurements at Palmer Station, Antarctica: 1982?83

1984 ◽  
Vol 2 (1) ◽  
pp. 65-81 ◽  
Author(s):  
E. Robinson ◽  
W. L. Bamesberger ◽  
F. A. Menzia ◽  
A. S. Waylett ◽  
S. F. Waylett
Keyword(s):  
Trace Gas ◽  
Palmer Station ◽  
Gas Measurements ◽  
Atmospheric Trace Gas

scholarly journals Population structure and phylogeography of the Gentoo Penguin (Pygoscelis papua) across the Scotia Arc

2016 ◽  
Vol 6 (6) ◽  
pp. 1834-1853 ◽  
Author(s):  
Hila Levy ◽  
Gemma V. Clucas ◽  
Alex D. Rogers ◽  
Adam D. Leaché ◽  
Kate L. Ciborowski ◽  
...  
Keyword(s):  
Population Structure ◽  
Gentoo Penguin ◽  
Pygoscelis Papua ◽  
Scotia Arc

Dietary isotopic discrimination in gentoo penguin (Pygoscelis papua) feathers

Polar Biology ◽  
2011 ◽  
Vol 34 (7) ◽  
pp. 1057-1063 ◽  
Author(s):  
Michael J. Polito ◽  
Stephanie Abel ◽  
Craig R. Tobias ◽  
Steven D. Emslie
Keyword(s):  
Gentoo Penguin ◽  
Pygoscelis Papua ◽  
Isotopic Discrimination

Geochemical evidence for rapid enlargement of a gentoo penguin colony on Barton Peninsula in the maritime Antarctic

2005 ◽  
Vol 17 (1) ◽  
pp. 11-16 ◽  
Author(s):  
RENBIN ZHU ◽  
LIGUANG SUN ◽  
XUEBIN YIN ◽  
ZHOUQING XIE ◽  
XIAODONG LIU
Keyword(s):  
Marine Ecosystem ◽  
Gentoo Penguin ◽  
Strong Impact ◽  
Maritime Antarctic ◽  
Tundra Vegetation ◽  
Rapid Enlargement ◽  
Penguin Colony ◽  
Barton Peninsula ◽  
The Antarctic ◽  
Geochemical Method

Gentoo penguin Pygoscelis papua is an important component of the Antarctic marine ecosystem. In this paper, we use an indirect approach, a geochemical method combining with 137Cs and 210Pb CRS mode dating, to study the dynamics of the gentoo population and colony on Barton Peninsula, King George Island, in the maritime Antarctic. Five sediment profiles were sampled in the zone between the gentoo penguin colony and tundra vegetation on this peninsula and the sediment sequence and typical elements from penguin guano were analysed. Results showed that the levels for typical elements display a dramatic change at around 5 cm depth, indicating the strong impact of penguin guano. The sediments below 5 cm showed lower concentrations in these elements, suggesting that these sediments had received little impact from penguin guano. By Q-mode factor analysis, a method for decomposing multiple factors, we found that over the past sixty years the gentoo colony showed a rapid enlargement and the tundra vegetation had been destroyed. Possible factors responsible for the enlargement of the penguin colony are tentatively discussed.

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