Differential Effects of Climate Warming on the Nectar Secretion of Early- and Late-Flowering Mediterranean Plants

Frontiers in Plant Science
Krista TakkisTheodora Petanidou

Abstract

Floral nectar is a vital resource for pollinators, thus having a very important role in ecosystem functioning. Ongoing climate warming could have a negative effect on nectar secretion, particularly in the Mediterranean, where a strong temperature rise is expected. In turn, decreased nectar secretion, together with shifts in flowering phenology can disrupt plant-pollinator interactions and consequently affect the entire ecosystem. Under fully controlled conditions, we tested how temperature influenced nectar secretion (through nectar volume, sugar concentration, sugar content, and number of flowers produced) in six Mediterranean plant species flowering from winter to summer (viz. Asphodelus ramosus, Ballota acetabulosa, Echium plantagineum, Lavandula stoechas, Rosmarinus officinalis, and Teucrium divaricatum). We compared the changes in nectar secretion under temperatures expected by the end of the century and estimated the effect of climate warming on nectar secretion of plants flowering in different seasons. We found a significant effect of temperature on nectar secretion, with a negative effect of very high temperatures in all species. Optimal temperatures for nectar secretion were similar to the mean temperatures in the rece...Continue Reading

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Sep 17, 2015·AoB Plants·Krista TakkisTheodora Petanidou

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Citations

Jul 2, 2019·The New Phytologist·Monica BorghiAlisdair R Fernie
Jun 20, 2020·Emerging Topics in Life Sciences·Maxence GérardDenis Michez
Jun 20, 2020·Emerging Topics in Life Sciences·Daniel P CariveauGabriella L Pardee
Sep 19, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Young Ki KimHyung Wook Kwon
Jun 3, 2021·Insects·Charlotte DescampsAnne-Laure Jacquemart
Jan 16, 2022·The Science of the Total Environment·Raquel Pérez MalufCarlos A Martinez

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Software Mentioned

lme4
lmerTest
ggplot2
MuMIn
RStudio
glmmADMB
R

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