| Title: | Drought and increased CO(2) alter floral visual and olfactory traits with context-dependent effects on pollinator visitation |
| Author(s): | Glenny WR; Runyon JB; Burkle LA; |
| Address: | "Department of Ecology, Montana State University, Bozeman, MT, 59717, USA. Rocky Mountain Research Station, USDA Forest Service, Bozeman, MT, 59717, USA" |
| ISSN/ISBN: | 1469-8137 (Electronic) 0028-646X (Linking) |
| Abstract: | "Climate change can alter species interactions essential for maintaining biodiversity and ecosystem function, such as pollination. Understanding the interactive effects of multiple abiotic conditions on floral traits and pollinator visitation are important to anticipate the implications of climate change on pollinator services. Floral visual and olfactory traits were measured from individuals of four forb species subjected to drought or normal water availability, and elevated or ambient concentrations of CO(2) in a factorial design. Pollinator visitation rates and community composition were observed in single-species and multi-species forb assemblages. Drought decreased floral visual traits and pollinator visitation rates but increased volatile organic compound (VOC) emissions, whereas elevated CO(2) positively affected floral visual traits, VOC emissions and pollinator visitation rates. There was little evidence of interactive effects of drought and CO(2) on floral traits and pollinator visitation. Interestingly, the effects of climate treatments on pollinator visitation depended on whether plants were in single- or multi-species assemblages. Components of climate change altered floral traits and pollinator visitation, but effects were modulated by plant community context. Investigating the response of floral traits, including VOCs, and context-dependency of pollinator attraction provides additional insights and may aid in understanding the overall effects of climate change on plant-pollinator interactions" |
| Keywords: | "Analysis of Variance Animals Bees/physiology Carbon Dioxide/*pharmacology Climate Diptera/physiology *Droughts Flowers/*physiology Linear Models Pollination/*drug effects Smell/*drug effects Vision, Ocular/*drug effects Volatile Organic Compounds/analysis;" |
| Notes: | "MedlineGlenny, William R Runyon, Justin B Burkle, Laura A eng US Forest Service-Rocky Mountain Research Station/International Montana State University/International Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2018/03/27 New Phytol. 2018 Nov; 220(3):785-798. doi: 10.1111/nph.15081. Epub 2018 Mar 25" |
