BIO120H1 Lecture Notes - Lecture 24: Soil, Seed Dispersal, Corm
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BIO120H1 Full Course Notes
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Lecture 24: putting things together: species interactions in subalpine meadows. Glacier lily: flower mainly in rocky soil: very bad primary seed dispersal distance, no secondary dispersal by ants: unappetizing with their lack of elaisomes (lipid bodies, seeds germinate best while buried in organic soil, summary of basic ecology: Long-li(cid:448)ed, iteroparous; gro(cid:449)s as a (cid:862)(cid:448)egetati(cid:448)e(cid:863) pla(cid:374)t for years (cid:271)efore flo(cid:449)eri(cid:374)g. Seeds subject to desiccation unless in moist conditions. Should find more plants away from thin soil (saw the opposite) Should find most seedlings near flowering plants (can look for this: factors to test: Seedlings do not overlap with flowering plants. Rockiness overlaps with flowering plants soil moisture and rockiness inversely related. Measured length of gopher tunnels in experimental areas. Gophers avoid flowering plants (rocky areas: patterns: Most seeds produced in rocky areas most desiccate and die. Seeds that reach moist deep-soil are more likely to survive.
