Consulta: creatorFacets:"Jaquemet, S"
Registros recuperados: 3
Data/hora: 11/06/2024 12:32:45

Resource partitioning within a tropical seabird community: new information from stable isotopes
Provedor de dados: 5
Autores: Cherel, Y; Le Corre, M; Jaquemet, S; Menard, Frederic; Richard, Pierre; Weimerskirch, H.
Characteristics of the tropical oceanic environment (low productivity, little seasonality) and poor diversity of tropical seabird foraging methods and prey relative to temperate and polar species suggest that tropical seabirds overall encompass a narrow range of isotopic niches, with large overlaps among species. To test this hypothesis, we examined the stable carbon (delta C-13) and nitrogen (delta N-15) isotopic composition of blood and feathers of 5 seabird species from Europa Island, Mozambique Channel. While differences were small, blood delta C-13 and delta N-15 values characterized 5 distinct and non-overlapping trophic niches during the breeding period. Seabirds used 2 distinct foraging areas (delta C-13), one used by sooty tern Sterna fuscata and...
Tipo: Text
Palavras-chave: Trophic segregation; Tuna; Sooty tern; Pelagic ecosystem; Frigatebird; Booby.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4675.pdf

Contrasting patterns in the abundance of fish communities targeted by fishers on two coral reefs in southern Mozambique
Provedor de dados: 5
Autores: Sancelme, Tonin; Goetze, J; Jaquemet, S; Meekan, Mg; Flam, A; Watts, Am; Speed, Cw.
Coastal populations of maritime countries in eastern Africa rely on fish as a primary source of protein, but baseline information on the abundance of fish communities on these coastlines is often lacking. We used baited remote underwater video stations to compare the abundance and diversity of reef fishes targeted by fishing at two sites in southern Mozambique, one at Lighthouse Reef within the Bazaruto Archipelago National Park and the other to the south at San Sebastian Reef on the San Sebastian Peninsula. Fish that are known targets of fisheries (mostly small-scale and artisanal) had an abundance that was almost three-times greater at San Sebastian Reef (80.22 ind. h–1 [SE 18.00]) than at Lighthouse Reef (29.70 ind. h–1 [SE 8.91]). Similarly, there was...
Tipo: Text
Palavras-chave: Baited remote underwater video; Bazaruto Archipelago; Biodiversity; Fish community structure; Fishing pressure; Marine reserve; Rarefaction curves; Western Indian Ocean.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00657/76941/79988.pdf

Comparative foraging ecology and ecological niche of a superabundant tropical seabird: the sooty tern Sterna fuscata in the southwest Indian Ocean
Provedor de dados: 5
Autores: Jaquemet, S; Potier, M; Cherel, Y; Kojadinovic, J; Bustamante, Paco; Richard, P; Catry, T; Ramos, J; Le Corre, M.
Over 6-million pairs of sooty terns Sterna fuscata breed once a year in the southwest Indian Ocean, mostly on three islands of the Mozambique Channel (Europa, Juan de Nova and Glorieuses) and in the Seychelles region. Seasonal reproduction in either winter or summer is the dominant strategy in the area, but non-seasonal reproduction also occurred in some places like at Glorieuses Archipelago. The feeding ecology of the sooty tern was investigated during the breeding seasons to determine whether terns showed significant differences in their trophic ecology between locations. Regurgitations were analyzed to describe the diet of individuals when breeding, and stable isotopes and mercury concentrations were used to temporally integrate over the medium-term of...
Tipo: Text
Palavras-chave: Mercury &amp;#948; 15N &amp;#948; 13C fish larvae flying squid feeding ecology Seabirds.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4654.pdf