BIO120H1 Lecture Notes - Lecture 24: Elaiosome, Erythronium, Seed Dispersal
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BIO120H1 Full Course Notes
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Zooming in: morphological and ecological characteristics of the glacier lily. Building an explanation consistent with the data on rocks, lilies, gophers. First observation: flowering plants seem to be most numerous where the soil surface is very rocky. Mark seeds in fruits with fluorescent powders, lay out fabric sprayed with adhesive. No elaiosome in this species (unlike other species in erythronium) Long-lived, iteroparous; grows as a vegetative plant for years before flowering. Seeds subject to desiccation unless in moist conditions. Desiccation: should find more plants away from thin soil around rock outcrops (we thought we saw the opposite) Weak dispersal: should find most seedlings near flowering plants (can look for this. Need to gather quantitative data on plant abundance and environmental factors. Set up study plot, 16x16 grid of 2x2m square; measure variables in each square; make maps. Scattergram matrix showing pairwise correlations among the 5 major variables; ovals show trends.
