Foraging Distribution of an Antarctic Southern Giant Petrel Population
نویسندگان
چکیده
منابع مشابه
Avian cholera in a southern giant petrel (Macronectes giganteus) from Antarctica.
A southern giant petrel (Macronectes giganteus) was found dead at Potter Peninsula, King George Island, South Shetland, Antarctica. The adult male was discovered approximately 48 hr after death. Macroscopic and microscopic lesions were compatible with avian cholera and the bacterium Pasteurella multocida subsp. gallicida, serotype A1 was isolated from lung, heart, liver, pericardial sac, and ai...
متن کاملTesting olfactory foraging strategies in an Antarctic seabird assemblage.
Procellariiform seabirds (petrels, albatrosses and shearwaters) forage over thousands of square kilometres for patchily distributed prey resources. While these birds are known for their large olfactory bulbs and excellent sense of smell, how they use odour cues to locate prey patches in the vast ocean is not well understood. Here, we investigate species-specific responses to 3-methyl pyrazine i...
متن کاملStable isotopes reveal trophic segregation by sex and age in the southern giant petrel in two different food webs
We investigated trophic ecology variation among colonies as well as sexand age-related differences in the diet of the southern giant petrel Macronectes giganteus, a long-lived seabird that is sexually dimorphic in size. We measured stable isotopes (δ13C, δ15N) in blood samples collected during breeding at Bird Island (South Georgia, Antarctica) in 1998 and at 2 colonies in the Argentinean area ...
متن کاملSouthern Ocean Echinoids database – An updated version of Antarctic, Sub-Antarctic and cold temperate echinoid database
This database includes over 7,100 georeferenced occurrence records of sea urchins (Echinodermata: Echinoidea) obtained from samples collected in the Southern Ocean (+180°W/+180°E; -35°/-78°S) during oceanographic cruises led over 150 years, from 1872 to 2015. Echinoids are common organisms of Southern Ocean benthic communities. A total of 201 species is recorded, which display contrasting depth...
متن کاملFeather mercury levels in seabirds at South Georgia: influence of trophic position, sex and age
We studied the mercury contamination of 13 species of seabirds breeding on Bird Island, South Georgia, in 1998. Total mercury concentrations in body feather samples of birds caught at their breeding colonies were determined. Among the species, grey-headed albatross (8933 ng g–1) and southern giant petrel (7774 ng g–1) showed the highest, and gentoo penguin (948 ng g–1) the lowest body feather m...
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ژورنال
عنوان ژورنال: INCT-APA Annual Activity Report
سال: 2012
ISSN: 2177-918X
DOI: 10.4322/apa.2014.069