FN Archimer Export Format
PT J
TI Within outlying mean indexes: refining the OMI analysis for the realized niche decomposition
BT 
AF KARASIEWICZ, Stephane
   DOLEDEC, Sylvain
   LEFEBVRE, Sebastien
AS 1:1;2:2;3:1,3;
FF 1:;2:;3:PDG-RBE-HMMN-RHBL;
C1 ULCO, Univ Sci & Technol Lille Lille I, CNRS, UMR LOG 8187, Wimereux, Nord Pas De Cal, France.
   Univ Claude Bernard Lyon I, UMR LEHNA 5023, Biodiversite & Plasticite Hydrosyst, Villeurbanne, Rhone, France.
   IFREMER, Lab Ressources Halieut, Boulogne, Nord Pas De Cal, France.
C2 UNIV LITTORAL COTE D'OPALE, FRANCE
   UNIV LYON, FRANCE
   IFREMER, FRANCE
SI BOULOGNE
SE PDG-RBE-HMMN-RHBL
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-univ-france
IF 2.118
TC 41
UR https://archimer.ifremer.fr/doc/00389/49999/50584.pdf
   https://archimer.ifremer.fr/doc/00389/49999/50585.pdf
   https://archimer.ifremer.fr/doc/00389/49999/50586.pdf
LA English
DT Article
DE ;Biological constraint;Niche dynamic;Marginality;Community;Spatio-temporal;Subniche;Habitat
AB The ecological niche concept has regained interest under environmental change (e.g., climate change, eutrophication, and habitat destruction), especially to study the impacts on niche shift and conservatism. Here, we propose the within outlying mean indexes (WitOMI), which refine the outlying mean index (OMI) analysis by using its properties in combination with the K-select analysis species marginality decomposition. The purpose is to decompose the ecological niche into subniches associated with the experimental design, i.e., taking into account temporal and/or spatial subsets. WitOMI emphasize the habitat conditions that contribute (1) to the definition of species' niches using all available conditions and, at the same time, (2) to the delineation of species' subniches according to given subsets of dates or sites. The latter aspect allows addressing niche dynamics by highlighting the influence of atypical habitat conditions on species at a given time and/or space. Then, (3) the biological constraint exerted on the species subniche becomes observable within Euclidean space as the difference between the existing fundamental subniche and the realized subniche. We illustrate the decomposition of published OMI analyses, using spatial and temporal examples. The species assemblage's subniches are comparable to the same environmental gradient, producing a more accurate and precise description of the assemblage niche distribution under environmental change. The WitOMI calculations are available in the open-access R package "subniche." 
PY 2017
PD MAY
SO Peerj
SN 2167-8359
PU Peerj Inc
VL 5
UT 000401846200013
BP 1
EP 17
DI 10.7717/peerj.3364
ID 49999
ER

EF