In our local alpine species pool, we also found a negative trend between seed mass and UFA/SFA ratio.
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Functional trade-offs and ecological correlates of seed oil traits in alpine ecosystems.
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The relationship with the ratio was less noticeable; seeds with a higher UFA/SFA ratio (i.e., more unsaturated fatty acids) showed a trend for decrease in longevity, but this was not significant (posterior mean = −0.73, CI: [−2.29|1.15], Fig. 4b , right panel).
The UFA/SFA ratio also showed a decreasing trend of longevity with more unsaturated fatty acids, although not significant.
We also observed an unexpected trend with species with higher unsaturated fatty acids germinating later, in contrast to the results of Linder ( 2000 ).