FN Archimer Export Format
PT J
TI Prey selection by the common dolphin: Fulfilling high energy requirements with high quality food
BT 
AF SPITZ, Jerome
   MOUROCQ, Emeline
   LEAUTE, Jean-Pierre
   QUERO, Jean-Claude
   RIDOUX, Vincent
AS 1:1;2:2;3:3;4:4;5:1,2;
FF 1:;2:;3:PDG-DOP-DCN-HGS-LRHLR;4:;5:;
C1 Univ La Rochelle, CNRS, UMR 6250, F-17032 La Rochelle, France.
   Univ La Rochelle, Ctr Rech Mammiferes Marins, F-17071 La Rochelle, France.
   IFREMER, Stn RH La Rochelle, F-17137 Lhoumeau, France.
   Museum Hist Nat La Rochelle, F-17000 La Rochelle, France.
C2 UNIV LA ROCHELLE, FRANCE
   UNIV LA ROCHELLE, FRANCE
   IFREMER, FRANCE
   MNHN, FRANCE
SI LA ROCHELLE
SE PDG-DOP-DCN-HGS-LRHLR
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 1.91
TC 52
TU Centre national de la recherche scientifique
   Université de La Rochelle
UR https://archimer.ifremer.fr/doc/00011/12221/9086.pdf
LA English
DT Article
CR EVHOE 2002
   EVHOE 2003
   EVHOE 2008
BO Thalassa
DE ;Active prey selection;Common dolphin;Prey quality;Energy density;Field of prey;Trophic cul-de-sac
AB Which characteristics define the prey species constituting the diet of a given predator? Answering this question would help predict a predator's diet and improve our understanding of how an ecosystem functions. The aim of this study was to test if the diet of common dolphins, Delphinus delphis, in the oceanic Bay of Biscay reflected prey availability or a selection shaped by prey energy densities (ED). To do this, the community of potential prey species, described both in terms of relative abundance and energy densities, was compared to the common dolphin diet in this area. This analysis of a predator's diet and its prey field revealed that the common dolphin selected its diet on the basis of prey energy densities (significant values of Chesson's index for ED > 5 kJ g(-1)) High-energy prey were positively selected in the diet [e.g. Notoscopelus kroeyeri, ED = 7.9 kJ g(-1), 9% of relative abundance in the environment (%Ne); 62% of relative abundance in the diet (%Nd)] and low-energy prey disregarded (Xenodermichthys copei, ED = 2.1 kJ g(-1), 20%Ne, 0%Nd). These results supported the hypothesis that common dolphins selected high energy density prey species to meet their energetically expensive life style and disregard prey organisms of poor energy content even when abundant in the environment. (C) 2010 Elsevier B.V. All rights reserved.
PY 2010
PD JUN
SO Journal Of Experimental Marine Biology And Ecology
SN 0022-0981
PU Elsevier Science Bv
VL 390
IS 2
UT 000280313600001
BP 73
EP 77
DI 10.1016/j.jembe.2010.05.010
ID 12221
ER

EF