Journal
NATURE PLANTS
Volume 6, Issue 2, Pages 88-94Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41477-020-0592-8
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Funding
- UK Natural Environment Research Council [NE/S007857/1]
- Polish National Science Centre [2017/24/C/NZ8/00151, 2018/28/U/NZ8/00003]
- NERC [NE/S007857/1] Funding Source: UKRI
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Many plants benefit from synchronous year-to-year variation in seed production, called masting. Masting benefits plants because it increases the efficiency of pollination and satiates predators, which reduces seed loss. Here, using a 39-year-long dataset, we show that climate warming over recent decades has increased seed production of European beech but decreased the year-to-year variability of seed production and the reproductive synchrony among individuals. Consequently, the benefit that the plants gained from masting has declined. While climate warming was associated with increased reproductive effort, we demonstrate that less effective pollination and greater losses of seeds to predators offset any benefits to the plants. This shows that an apparently simple benefit of climate warming unravels because of complex ecological interactions. Our results indicate that in masting systems, the main beneficiaries of climate-driven increases in seed production are seed predators, not plants. Masting, synchronous year-to-year variation in seed production, increases pollination efficiency and reduces seed loss to predators. Climate warming over recent decades has increased seed production but decreased masting, favouring seed predators over plants.
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