@article{fdi:010064711,
  title = {{P}rojected impacts of climate change and ocean acidification on the global biogeography of planktonic {F}oraminifera},
  author = {{R}oy, {T}illa and {L}ombard, {F}. and {B}opp, {L}. and {G}ehlen, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}lanktonic {F}oraminifera are a major contributor to the deep carbonate flux and their microfossil deposits form one of the richest databases for reconstructing paleoenvironments, particularly through changes in their taxonomic and shell composition. {U}sing an empirically based planktonic foraminifer model that incorporates three known major physiological drivers of their biogeography - temperature, food and light - we investigate (i) the global redistribution of planktonic {F}oraminifera under anthropogenic climate change and (ii) the alteration of the carbonate chemistry of foraminiferal habitat with ocean acidification. {T}he present-day and future (2090-2100) 3-{D} distributions of {F}oraminifera are simulated using temperature, plankton biomass and light from an {E}arth system model forced with a historical and a future ({IPCC} {A}2) high {CO}2 emission scenario. {F}oraminiferal abundance and diversity are projected to decrease in the tropics and subpolar regions and increase in the subtropics and around the poles. {T}emperature is the dominant control on the future change in the biogeography of {F}oraminifera. {Y}et food availability acts to either reinforce or counteract the temperature-driven changes. {I}n the tropics and subtropics the largely temperature-driven shift to depth is enhanced by the increased concentration of phytoplankton at depth. {I}n the higher latitudes the food-driven response partly offsets the temperature-driven reduction both in the subsurface and across large geographical regions. {T}he large-scale rearrangements in foraminiferal abundance and the reduction in the carbonate ion concentrations in the habitat range of planktonic foraminifers - from 10-30 mu mol kg(-1) in their polar and subpolar habitats to 30-70 mu mol kg(-1) in their subtropical and tropical habitats - would be expected to lead to changes in the marine carbonate flux. {H}igh-latitude species are most vulnerable to anthropogenic change: their abundance and available habitat decrease and up to 10% of the volume of their habitat drops below the calcite saturation horizon.},
  keywords = {},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {12},
  numero = {10},
  pages = {2873--2889},
  ISSN = {1726-4170},
  year = {2015},
  DOI = {10.5194/bg-12-2873-2015},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064711},
}