@article{PAR00024854,
  title = {{L}ong-term experimental drought alters floral scent and pollinator visits in a {M}editerranean plant community despite overall limited impacts on plant phenotype and reproduction},
  author = {{J}aworski, {C}. {C}. and {G}eslin, {B}. and {Z}akardjian, {M}. and {L}ecareux, {C}. and {C}aillault, {P}. and {N}eve, {G}. and {M}eunier, {J}ean-{Y}ves and {D}upouyet, {S}. and {S}weeney, {A}. {C}. {T}. and {L}ewis, {O}. {T}. and {D}icks, {L}. {V}. and {F}ernandez, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}ollinators are declining globally, with climate change implicated as an important driver. {C}limate change can induce phenological shifts and reduce floral resources for pollinators, but little is known about its effects on floral attractiveness and how this might cascade to affect pollinators, pollination functions and plant fitness. {W}e used an in situ long-term drought experiment to investigate multiple impacts of reduced precipitation in a natural {M}editerranean shrubland, a habitat where climate change is predicted to increase the frequency and intensity of droughts. {F}ocusing on three insect-pollinated plant species that provide abundant rewards and support a diversity of pollinators ({C}istus albidus, {S}alvia rosmarinus and {T}hymus vulgaris), we investigated the effects of drought on a suite of floral traits including nectar production and floral scent. {W}e also measured the impact of reduced rainfall on pollinator visits, fruit set and germination in {S}. rosmarinus and {C}. albidus. {D}rought altered floral emissions of all three plant species qualitatively, and reduced nectar production in {T}. vulgaris only. {A}pis mellifera and {B}ombus gr. terrestris visited more flowers in control plots than drought plots, while small wild bees visited more flowers in drought plots than control plots. {P}ollinator species richness did not differ significantly between treatments. {F}ruit set and seed set in {S}. rosmarinus and {C}. albidus did not differ significantly between control and drought plots, but seeds from drought plots had slower germination for {S}. rosmarinus and marginally lower germination success in {C}. albidus. {S}ynthesis. {O}verall, we found limited but consistent impacts of a moderate experimental drought on floral phenotype, plant reproduction and pollinator visits. {I}ncreased aridity under climate change is predicted to be stronger than the level assessed in the present study. {D}rought impacts will likely be stronger and this could profoundly affect the structure and functioning of plant-pollinator networks in {M}editerranean ecosystems.},
  keywords = {climate change ; floral traits ; plant fitness ; pollination ; reduced rainfall ; volatile organic compound ; water deficit ; water-limited ; {FRANCE} ; {ZONE} {MEDITERRANEENNE} ; {MARSEILLE} ; {ETOILE} {MASSIF}},
  booktitle = {},
  journal = {{J}ournal of {E}cology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[21 p.]},
  ISSN = {0022-0477},
  year = {2022},
  DOI = {10.1111/1365-2745.13974},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00024854},
}