Gray-headed Albatross (Thalassarche chrysostoma)

2020 ◽  
Author(s):  
Carles Carboneras ◽  
Francesc Jutglar ◽  
Guy M. Kirwan
Keyword(s):  
Thalassarche Chrysostoma

scholarly journals Breeding frequency in Grey-headed Albatrosses Thalassarche chrysostoma

Ibis ◽  
2006 ◽  
Vol 149 (1) ◽  
pp. 45-52 ◽  
Author(s):  
PETER G. RYAN ◽  
RICHARD A. PHILLIPS ◽  
DEON C. NEL ◽  
ANDREW G. WOOD
Keyword(s):  
Thalassarche Chrysostoma

SUSTAINED FAST TRAVEL BY A GRAY-HEADED ALBATROSS (THALASSARCHE CHRYSOSTOMA) RIDING AN ANTARCTIC STORM

The Auk ◽  
2004 ◽  
Vol 121 (4) ◽  
pp. 1208 ◽  
Author(s):  
Paulo Catry ◽  
Richard A. Phillips ◽  
John P. Croxall
Keyword(s):  
Thalassarche Chrysostoma

Three new species of the louse genus Saemundssonia (Insecta: Phthiraptera: Philopteridae)

Zootaxa ◽  
2012 ◽  
Vol 3478 (1) ◽  
pp. 38-48 ◽  
Author(s):  
RICARDO L. PALMA
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Chewing Lice ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Three New Species ◽  
Thalassarche Chrysostoma ◽  
Phoebetria Palpebrata

I describe and illustrate three new species of chewing lice in the genus Saemundssonia, collected from seabirds in NewZealand, the Galápagos and other islands of the Pacific Ocean. They are: Saemundssonia (Saemundssonia) albatrossa n.sp. from Phoebetria palpebrata, Thalassarche chrysostoma, and Thalassarche impavida; Saemundssonia(Saemundssonia) creagrusa n. sp. from Creagrus furcatus; and Saemundssonia (Saemundssonia) gygisa n. sp. from Gygis alba candida.

‘Scalping’ of albatross fledglings by introduced mice spreads rapidly at Marion Island

2015 ◽  
Vol 28 (2) ◽  
pp. 73-80 ◽  
Author(s):  
Ben J. Dilley ◽  
Stefan Schoombie ◽  
Janine Schoombie ◽  
Peter G. Ryan
Keyword(s):  
Mus Musculus ◽  
House Mice ◽  
Home Ranges ◽  
Marion Island ◽  
Seabird Species ◽  
Feral Cats ◽  
Low Level ◽  
Diomedea Exulans ◽  
Wandering Albatross ◽  
Thalassarche Chrysostoma

AbstractHouse mice (Mus musculusL.) were introduced to sub-Antarctic Marion Island more than two centuries ago, and have been the only introduced mammal on the island since 1991 when feral cats were eradicated. The first mouse-injured wandering albatross (Diomedea exulansL.) chick was found in 2003 and since then attacks have continued at a low level affecting <1% of the population. In 2009, the first ‘scalpings’ were detected; sooty albatross (Phoebetria fuscaHilsenberg) fledglings were found with raw wounds on the nape. In 2015, mice attacked large chicks of all three albatross species that fledge in autumn: grey-headed (Thalassarche chrysostomaForster) (at least 102 wounded chicks; 4.6% of fledglings), sooty (n=45, 4.3%) and light-mantled albatross (P. palpebrataForster) (n=1, 4%). Filming at night confirmed that mice were responsible for wounds. Attacks started independently in small pockets all around the island’s 70 km coastline, separated by distances hundreds of times greater than mouse home ranges. The widespread nature of mouse attacks in 2015 on large, well-feathered chicks is alarming and highlights not only Marion Island as a priority island for mouse eradication but also that mice alone may significantly affect threatened seabird species.

scholarly journals Reconstrucción alométrica de la capacidad de vuelo de Pelagornis chilensis Mayr & Rubilar-Rogers, 2010 (Aves: Pelagornithidae)

2020 ◽  
Vol 35 (2) ◽  
pp. 237
Author(s):  
Ivan Meza-Vélez
Keyword(s):  
Diomedea Exulans ◽  
Thalassarche Chrysostoma

Las aves fósiles de la familia Pelagornithidae fueron grandes aves marinas planeadoras que habitaron desde el Paleoceno tardío hasta el Plioceno. En este trabajo se estudia la capacidad de vuelo de Pelagornis chilensis, una especie de esa familia. Utilizando la fórmula de sustentación y fórmulas alométricas se demostró que diferentes tipos de velocidades del ave extinta son significativamente mayores a las de Thalassarche chrysostoma, el albatros de cabeza gris, el ave marina actual que más se asemeja morfológicamente al ave extinta. Además, en coherencia con los resultados anteriores, se determinó que la potencia parásita, la potencia inducida, la fuerza muscular y el número de Reynolds de P. chilensis son significativamente mayores que las de T. chrysostoma. El método fue utilizado en el albatros Diomedea exulans para comprobar la cercanía de los valores observados con los calculados y estimar un porcentaje de error. La diferencia obtenida entre estos resultados es de un 2,7%, demostrando la efectividad del método. Finalmente, se estudian las condiciones y forma de vuelo de los grandes albatros y su posible aplicación al vuelo de los Pelagornítidos. Se hipotetiza que por el gran tamaño de las especies estudiadas y por tener una morfología semejante, dichos patrones de vuelo serían similares.

Multistate Models for Estimation of Survival and Reproduction in the Grey-headed Albatross (Thalassarche chrysostoma)

The Auk ◽  
2009 ◽  
Vol 126 (1) ◽  
pp. 77-88 ◽  
Author(s):  
Sarah J. Converse ◽  
William L. Kendall ◽  
Paul F. Doherty ◽  
Peter G. Ryan
Keyword(s):  
Multistate Models ◽  
Survival And Reproduction ◽  
Thalassarche Chrysostoma

scholarly journals Boluses: An Effective Method for Assessing the Proportions of Cephalopods in the Diet of Albatrosses

The Auk ◽  
2005 ◽  
Vol 122 (4) ◽  
pp. 1182-1190 ◽  
Author(s):  
José C. Xavier ◽  
John P. Croxall ◽  
Kate A. Cresswell
Keyword(s):  
Sampling Method ◽  
Prey Species ◽  
Régime Alimentaire ◽  
Noninvasive Method ◽  
Main Prey ◽  
Cephalopod Species ◽  
Size Frequency ◽  
Dietary Components ◽  
Thalassarche Chrysostoma

AbstractThe method of collecting and analyzing boluses to characterize the cephalopod diet of albatrosses has been used in many diet studies. However, no study has validated this method. We compared boluses and stomach samples from Gray-headed Albatrosses (Thalassarche chrysostoma) and Black-browed Albatrosses (T. melanophris) to (1) study the consumption and diversity of cephalopods in these species, (2) investigate biases associated with each sampling method, and (3) estimate the number of samples needed to characterize these albatross’s cephalopod diet. We found that collection and analysis of boluses is a simple, efficient, and noninvasive method for assessing the cephalopod diet of these albatross species, but it is inadequate for characterizing the more easily digestible dietary components, such as fish and crustaceans. Both boluses and stomach samples showed that the two albatross species fed on cephalopods of similar sizes and from the same families (Ommastrephidae, Onychoteuthidae, and Cranchiidae). Furthermore, the main prey species (Martialia hyadesi, Kondakovia longimana, and Galiteuthis glacialis) and the total number of cephalopod species consumed (18–24 species) were the same for both albatrosses. To include all cephalopod species, using a sample-randomization technique, a minimum of 61 and 43 boluses were needed for Gray-headed and Black- browed albatrosses, respectively; but to adequately describe the diversity and size frequency of the main prey species, 82 and 371 boluses would be needed.Les Pelotes de Réjection: Une Méthode Efficace pour Évaluer la Proportion de Céphalopodes dans le Régime Alimentaire chez les Albatros

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