BIO120H1 Lecture Notes - Lecture 24: Henry Chandler Cowles, Wasatch Range, Timpanogos
36
BIO120H1 Full Course Notes
Verified Note
36 documents
Document Summary
Zooming in: morphological and ecological characteristics of the glacier lily. Building an explanation consistent with the data on rocks, lilies, gophers. Zooming out evolutionarily via the comparative method: loss of elaiosomes. Ecology the science of the distribution and abundance of organisms in space; stressing patchiness of natural systems. Let"s start with the distribution ecology of the glacier lily. Flowers seem to be concentrated around rocky outcrop where organic soil is thin and sparse. Drift of surface rock, rock outcrop under the surface. This pattern was pretty consistent, though they can grow in areas of better soil. We need to look at the life history. Long lived perennial, behaves like a spring ephemeral. Takes a long time to reach flowering age (6 years at best) o. If it gets pollinated, not frosted, makes a large fruit capsule. For such large seeds, we wonder what the dispersal mechanism is. Mark seeds in fruits with fluorescent powders.
