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Registros recuperados: 7
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A neotype designation for the Ascension Frigatebird Fregata aquila (Aves: Fregatidae) Rev. Bras. Zool.
Carlos,Caio J.; Voisin,Jean-François; Grouw,Hein van; Moreno,Ignacio B..
ABSTRACT A neotype is designated for Pelecanus aquilus Linnaeus, 1758 (currently Fregata aquila ; Aves, Fregatidae) to fix the identity of this nominal species.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Ornithology; Seabird; Suliformes; Taxonomy; Zoological nomenclature.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000604003
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Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? ArchiMer
Viblanc, Vincent A.; Saraux, Claire; Malosse, Nelly; Groscolas, Rene.
1. For seabirds that forage at sea but breed while fasting on land, successful reproduction depends on the effective management of energy stores. Additionally, breeding often means aggregating in dense colonies where social stress may affect energy budgets. 2. Male king penguins (Aptenodytes patagonicus) fast for remarkably long periods (up to 1 center dot 5months) while courting and incubating ashore. Although their fasting capacities have been well investigated in captivity, we still know very little about the energetics of freely breeding birds. 3. We monitored heart rate (HR, a proxy to energy expenditure), body temperature and physical activity of male king penguins during their courtship and first incubation shift in a colony of some 24000 freely...
Tipo: Text Palavras-chave: Social density; Body temperature; Seabird; Fasting; Stress; Physical activity; Heart rate; Energy expenditure.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00193/30447/29090.pdf
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Fine-scale recognition and use of mesoscale fronts by foraging Cape gannets in the Benguela upwelling region ArchiMer
Sabarros, Philippe S.; Gremillet, David; Demarcq, Herve; Moseley, Christina; Pichegru, Lorien; Mullers, Ralf H. E.; Stenseth, Nils C.; Machu, Eric.
Oceanic structures such as mesoscale fronts may become hotspots of biological activity through concentration and enrichment processes. These fronts generally attract fish and may therefore be targeted by marine top-predators. In the southern Benguela upwelling system, such fronts might be used as environmental cues by foraging seabirds. In this study we analyzed high-frequency foraging tracks (GPS, 1 s sampling) of Cape gannets Morus capensis from two colonies located on the west and east coast of South Africa in relation to mesoscale fronts detected on daily high-resolution chlorophyll-a maps (MODIS, 1 km). We tested the association of (i) searching behavior and (ii) diving activity of foraging birds with mesoscale fronts. We found that Cape gannets shift...
Tipo: Text Palavras-chave: Seabird; Environmental cue; Behavioral shift; Area-restricted search; Feeding activity; Fractal landscape; Oceanographic fronts; Morus capensis; Southern Benguela; South Africa.
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00236/34756/34575.pdf
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Investigating an avian source of shellfish faecal contamination in the Thau lagoon (the Mediterranean, France) ArchiMer
Derolez, Valerie; Serais, Ophelie; Caprais, Marie-paule; Le Saux, Jean-claude; Messiaen, Gregory.
Microbes regularly contaminate Thau lagoon shellfish. Between 1997 and 2007, 18% of the analyses carried out in dry weather recorded more than 230 Escherichia coli / 100 g of bivalves (Ifremer French microbial monitoring network), leading the administration to restrict the shellfish harvest area, including suspension of production. This study aims to determine, the contribution of seabirds, which roost at night on the Thau lagoon shellfish growing frames, to shellfish faecal pollution in dry weather.Data were collected in 2008 from both the drainage area (pollution input) and the lagoon (water quality and microbial monitoring, seabird counts) in dry weather. The data showed that, with no watershed input or lagoon resurgence, microbial contaminants were...
Tipo: Text Palavras-chave: Escherichia coli; Origine aviaire; Coquillage; Contamination fécale; Étang de Thau; Oiseau de mer; Bactériophage; Dépistage de la source microbienne; Temps sec; Escherichia coli; Avian source; Shellfish; Faecal contamination; Thau lagoon; Seabird; Bacteriophage; Microbial source tracking; Dry weather.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00025/13593/10659.pdf
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Negative effects of wind speed on individual foraging performance and breeding success in little penguins ArchiMer
Saraux, Claire; Chiaradia, Andre; Salton, Marcus; Dann, Peter; Viblanc, Vincent A..
Most effects of environmental and climate variability on predator life history traits and population dynamics result from indirect effects mediated through the food chain. There is growing evidence that wind strength might affect seabirds while foraging at sea. Here, we investigated the effect of wind speed on the foraging performance of a flightless marine predator, the little penguin (Eudyptula minor). To this end, we used satellite-derived wind data collected over 11 breeding seasons during which the daily attendance and body mass changes of more than 200 penguins breeding at Phillip Island (Victoria, Australia) were recorded by an automated penguin monitoring system. Over 17 363 foraging trips, we found that wind speed had important effects on foraging...
Tipo: Text Palavras-chave: Body condition; Chick rearing; Climate change vs. climate variability; Eudyptula minor; Extreme events; Seabird.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00318/42964/42469.pdf
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Occurrence of Stercorarius pomarinus (Temminck, 1815, Charadriiformes: Stercorariidae) in the Cananéia estuary, southern coast of São Paulo State Biota Neotropica
Barbieri,Edison; Bete,Douglas.
Many Neartic seabirds migrate to South America for the non-breeding season, using several key stopover and wintering sites along the Atlantic coast. The Stercorarius pomarinus is a widely distributed seabird found in every Ocean. It is a migratory bird from northern North America that flies southwards. However, there is little information about the occurrence of Stercorarius pomarinus along the São Paulo State coast. Former publications concerning the birds of Iguape- Cananéia- Ilha Comprida estuary have made no mention of the presence of this bird in the region. Thus it is important that forthcoming appearances be recorded. Throughout the bird-sample selection stage, undertaken since 1998 in the Cananéia estuary (25° 02' 44.71" S and 47° 55' 14.58" W) -...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seabird; Migration; Cananéia; São Paulo; Stercorarius pomarinus.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100035
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Seabirds as a subsistence and cultural resource in two remote Alaskan communities Ecology and Society
Young, Rebecca C.; Department of Biology and Wildlife, Institute of Arctic Biology, University of Alaska Fairbanks; rcyoung@alaska.edu; Kitaysky, Alexander S.; Department of Biology and Wildlife, Institute of Arctic Biology, University of Alaska Fairbanks; askitaysky@alaska.edu; Carothers, Courtney; School of Fisheries and Ocean Sciences, University of Alaska Fairbanks; clcarothers@alaska.edu; Dorresteijn, Ine; Department of Biology and Wildlife, Institute of Arctic Biology, University of Alaska Fairbanks; ine.dorresteijn@gmail.com.
Small rural Alaskan communities face many challenges surrounding rapid social and ecological change. The role of local subsistence resources may change over time because of changes in social perception, economic need, and cultural patterns of use. We look at the Bering Sea’s Pribilof Islands, comprising two very small communities, and investigate the relationship between the local residents and seabirds as a natural resource. Seabirds may strengthen ties to older ways of life and have potential for future economic opportunities, or modernization may direct interest away from seabirds as a cultural and economic resource. We conducted a survey and interviews of residents of the two Pribilof Island communities, St. Paul and St. George, to assess...
Tipo: Peer-Reviewed Reports Palavras-chave: Aleut; Pribilof Islands; Seabird; Subsistence; Survey; Tourism.
Ano: 2014
Registros recuperados: 7
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