@article{fdi:010067602,
  title = {{F}rom species distributions to ecosystem structure and function : a methodological perspective},
  author = {{C}haalali, {A}. and {B}eaugrand, {G}. and {R}aybaud, {V}. and {L}assalle, {G}. and {S}aint-{B}eat, {B}. and {L}e {L}oc'h, {F}ran{\c{c}}ois and {B}opp, {L}. and {T}ecchio, {S}. and {S}afi, {G}. and {C}hifflet, {M}. and {L}obry, {J}. and {N}iquil, {N}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}s species biology and ecology is profoundly influenced by climate, any climatic alteration may have severe consequences on marine pelagic ecosystems and their food webs. {I}t remains challenging to estimate the influence of climate on both structural and functional properties of food webs. {I}n this study, we proposed an innovative approach to assess the propagating effects of climate change on ecosystem food web. {T}he approach is based on a sensitivity analysis of a food-web model, a linear inverse model using a {M}onte {C}arlo method coupled with a {M}arkov {C}hain, in which changes in the values of parameters are driven by external {E}cological {N}iche {M}odel outputs. {O}ur sensitivity analysis was restricted to parameters regarding a keystone functional group in marine ecosystems, i.e. small pelagic fish. {A}t the ecosystem level, the consequences were evaluated using both structural and functional ecological network indices. {T}he approach is innovative as it is the first time that these three methods were combined to assess ecological network indices sensitivity to future climatic pressure. {T}his coupling method was applied on the {F}rench continental shelf of the {B}ay of {B}iscay for which a food-web model already exists and where future changes in the distribution of small pelagic fish have already been examined through model building and projections. {I}n response to the sensitivity analysis corresponding to an increase in small pelagics production only, our results suggested a more active system with an intense plankton-small pelagics-seabirds chain and an efficient recycling to maximize detritus use in the system in relation with detritus export. {A}ll results combined together seemed to be in favor of a system adapting to sustain the tested increase in production of small pelagic planktivores. {F}inally, regarding the innovative combination of numerical tools presented, even if further investigations are still necessary to get a more realistic view of cumulative effects resulting from one given pressure (or more) on a food web (e.g. altering different biological compartments at the same time), the {E}cological {N}etwork {A}nalysis indices values showed a higher variability under the scenarios of change. {O}ur study thus pointed out a promising methodology to assess propagating changes in structural and functional ecosystem properties.},
  keywords = {{C}limate-induced changes ; {F}ood web ; {S}mall pelagics ; {L}inear {I}nverse {M}odel ; {E}cological {N}etwork {A}nalysis ; {E}cological niche ; {FRANCE} ; {ATLANTIQUE} ; {BISCAYE} {BAIE}},
  booktitle = {},
  journal = {{E}cological {M}odelling},
  volume = {334},
  numero = {},
  pages = {78--90},
  ISSN = {0304-3800},
  year = {2016},
  DOI = {10.1016/j.ecolmodel.2016.04.022},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067602},
}