References of "Dauby, Patrick"
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See detailThe role of benthic amphipods in the eastern Weddell Sea trophic web as determined from stable isotope and fatty acid analyses
Nyssen, Fabienne ULg; Brey, Thomas; Graeve, Martin et al

Conference (2001, August)

Within the Southern Ocean, amphipods have achieved a conspicuous adaptative radiation which gave rise to the development of numerous feeding strategies (Jazdzewski et al. 1996; Dauby et al. in press; De ... [more ▼]

Within the Southern Ocean, amphipods have achieved a conspicuous adaptative radiation which gave rise to the development of numerous feeding strategies (Jazdzewski et al. 1996; Dauby et al. in press; De Broyer et al. in press). The discrepancy between the ecological significance of amphipods in the Antarctic and our poor knowledge of their ecofunctional role calls for a more detailed investigation of their importance in this ecosystem trophodynamics. This study focused on the eight amphipods species which were collected and from which isotopic and lipidic (when available) (Graeve et al. in press) compositions were compared to their respective gut contents previously described (Dauby et al. in press). The interest of both first techniques rely upon the direct relationship between the isotopic signatures and the lipid composition of organisms and those of their diet (De Niro and Epstein 1978, 1981; Peterson and Fry 1987; Graeve et al. 1994; Cripps et al 1999). Amphipod stable isotope ratios and fatty acids composition correspond rather accurately to the trophic classification based on gut contents and attest to their high spectrum of feeding types. Since the fundamental difference between the approaches to diet studies is the time scale each method addresses, this coincidence indicates that there would be no significant changes in feeding strategies over time. Three levels of the food web are covered by the eight species and, instead of belonging strictly to one trophic category, amphipods display a continuum of values from the suspension-feeder to scavengers. [less ▲]

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Peer Reviewed
See detailUse of stable isotopes to delineate amphipod trophic status in the High Antarctic
Nyssen, Fabienne ULg; Graeve, Martin; Brey, Thomas et al

Poster (2001, July)

Detailed reference viewed: 9 (0 ULg)
Peer Reviewed
See detailAmphipod as food sources for higher trophic levels in the Southern Ocean
Dauby, Patrick ULg; Nyssen, Fabienne ULg; De Broyer, Claude

Poster (2001, July)

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Peer Reviewed
See detailCoastal and shelf biodiversity of the Southern Ocean: the "Ant'Phipoda" project
De Broyer, Claude; Chapelle, Gauthier; Duchesne, Paul-André et al

Poster (2001, May)

Detailed reference viewed: 8 (0 ULg)
See detailSome applications of stable isotopes in ecological research
Dauby, Patrick ULg

Scientific conference (2001, March)

Detailed reference viewed: 7 (1 ULg)
See detailMystérieux Océans
Dauby, Patrick ULg

Conference given outside the academic context (2001)

Detailed reference viewed: 8 (0 ULg)
See detailStructural and ecofunctional biodiversity of the amphipod crustacean benthic taxocoenoses in the Southern Ocean (Belgian Scientific Programme on the Antarctic, Phase IV)
De Broyer, Claude; Chapelle, Gauthier; Duchesne, Paul-André et al

Report (2001)

Detailed reference viewed: 4 (0 ULg)
Peer Reviewed
See detailBiodiversity of the Southern Ocean: Lessons from Crustacea
De Broyer, Claude; Jazdzewski, Krzyzsof; Chapelle, Gauthier et al

Conference (2001)

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See detailA stable isotope approach to the eastern Weddell Sea trophic web: focus on benthic amphipods
Nyssen, Fabienne ULg; Brey, Thomas; Lepoint, Gilles ULg et al

in Polar Biology (2001), 25(4),

isotope (C-13/C-12 and N-15/N-14) analyses were performed on 90 species belonging to different benthic communities sampled in the eastern Weddell Sea. The study focused on eight amphipod species whose ... [more ▼]

isotope (C-13/C-12 and N-15/N-14) analyses were performed on 90 species belonging to different benthic communities sampled in the eastern Weddell Sea. The study focused on eight amphipod species whose isotopic composition was compared to their previously described respective gut contents. Amphipod stable isotope ratios correspond fairly accurately to the trophic classification based on gut contents and attest to their wide spectrum of feeding types. Since the fundamental difference between the isotope and the gut content approaches to diet studies is the time scale each method addresses. this coincidence indicates that there would be no significant changes in feeding strategies over time. Three levels of the food web are covered by the eight species and, instead of belonging strictly to one trophic category, amphipods display a continuum of values from the suspension-feeder to scavengers. [less ▲]

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See detailTrophic diversiy within the eastern Weddell Sea amphipod community
Dauby, Patrick ULg; Scailteur, Yves; De Broyer, Claude

in Hydrobiologia (2001), 443

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See detailPotential impact of the main benthic amphipods on the eastern Weddell Sea shelf ecosystem (Antarctica)
Dauby, Patrick ULg; Scailteur, Yves; Chapelle, Gauthier et al

in Polar Biology (2001), 24

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See detailAdaptations des organismes à la vie dans les abysses et les sources hydrothermales
Dauby, Patrick ULg

Conference given outside the academic context (2000)

Detailed reference viewed: 12 (0 ULg)
See detailVariations saisonnières des isotopes stables du carbone (13C) et de l'azote (15N) dans un réservoir mésotrophe
Hoffman, Lucien; Willame, Raphaël; Thys, Isabelle et al

Conference (2000, July 17)

Detailed reference viewed: 6 (0 ULg)
See detailVariations saisonnières des isotopes stables du carbone (13C) et de l'azote (15N) dans un réservoir mésotrophe.
Hoffmann, Lucien; Willame, R.; Thys, I. et al

in Annales scientifiques de l'Université de Clermont-Ferrand 2 (2000, July), 108

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Peer Reviewed
See detailDetermination of trophic status of seabirds using carbon and nitrogen isotopes.
Nyssen, Fabienne; Lepoint, Gilles ULg; Dauby, Patrick ULg et al

Poster (2000, May)

Detailed reference viewed: 3 (1 ULg)
See detailAn "Antarctic Marine Biodiversity Reference Centre" devoted to amphipod crustaceans
De Broyer, Claude; Van Roozendael, Françoise; Jazdzewski, Krzysztof et al

Poster (2000, April)

Detailed reference viewed: 8 (0 ULg)