FN Archimer Export Format
PT J
TI Let's go beyond taxonomy in diet description: testing a trait-based approach to prey-predator relationships
BT 
AF SPITZ, Jerome
   RIDOUX, Vincent
   BRIND'AMOUR, Anik
AS 1:1,2;2:3,4;3:5;
FF 1:;2:;3:PDG-RBE-EMH;
C1 UMR 7266 Univ La Rochelle CNRS, Littoral Environm & Soc, F-17042 La Rochelle, France.
   Univ British Columbia, Fisheries Ctr, Marine Mammal Res Unit, Vancouver, BC V6T 1Z4, Canada.
   CNRS Univ La Rochelle, UMS 3462, Observ PELAGIS Syst Observat Conservat Mammiferes, F-17071 La Rochelle, France.
   Univ La Rochelle CNRS, UMR 7372, Ctr Etud Biol Chize La Rochelle, F-79360 Villiers En Bois, France.
   IFREMER, Dept Ecol & Modeles Halieut, F-44311 Nantes, France.
C2 UNIV LA ROCHELLE, FRANCE
   UNIV BRITISH COLUMBIA, CANADA
   CNRS, FRANCE
   UNIV LA ROCHELLE, FRANCE
   IFREMER, FRANCE
SI AUTRE
   NANTES
SE AUTRE
   PDG-RBE-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 4.504
TC 48
UR https://archimer.ifremer.fr/doc/00189/30047/29495.pdf
LA English
DT Article
DE ;foraging strategy;fourth-corner method;functional ecology;marine mammals;prey selection;RLQ analysis
AB 1.  Understanding ‘Why a prey is a prey for a given predator?’ can be facilitated through trait-based approaches that identify linkages between prey and predator morphological and ecological characteristics and highlight key functions involved in prey selection.  2.  Enhanced understanding of the functional relationships between predators and their prey is now essential to go beyond the traditional taxonomic framework of dietary studies and to improve our knowledge of ecosystem functioning for wildlife conservation and management. 3.  We test the relevance of a three-matrix approach in foraging ecology among a marine mammal community in the northeast Atlantic to identify the key functional traits shaping prey selection processes regardless of the taxonomy of both the predators and prey.  4.  Our study reveals that prey found in the diet of marine mammals possess functional traits which are directly and significantly linked to predator characteristics, allowing the establishment of a functional typology of marine mammal–prey relationships. We found prey selection of marine mammals was primarily shaped by physiological and morphological traits of both predators and prey, confirming that energetic costs of foraging strategies and muscular performance are major drivers of prey selection in marine mammals.  5.  We demonstrate that trait-based approaches can provide a new definition of the resource needs of predators. This framework can be used to anticipate bottom-up effects on marine predator population dynamics and to identify predators which are sensitive to the loss of key prey functional traits when prey availability is reduced.
PY 2014
PD SEP
SO Journal Of Animal Ecology
SN 0021-8790
PU Wiley-blackwell
VL 83
IS 5
UT 000340877700014
BP 1137
EP 1148
DI 10.1111/1365-2656.12218
ID 30047
ER

EF