Bio 120 Lecture 11: Species Interactions in Subalpine meadows oct22nd
Glacier lily: morphological and ecological characteristics
Environmental variables in correlational studies
An explanation along with the data on rocks, lilies, gophers
Zooming out the evolutionarily via the comparative method: loss of elaisomers
Rock refuge hypothesis (ecologically)
Regional differences in systems (biogeographically)
Glacier Lily: similar to garden Tulips
It grows without flowering for number of years, going through a long resource accumulation
Observation: flowering plants seemed to be most numerous where soil surface is very rocky
Primary seeds dispersal distance experiment:
Primary dispersal is around 23cm.
Secondary dispersal: elaiosome have chemicals that are attracted by ants.
-gradiflorum has no elaisomers; therefore, ants are not interested
Seed Germination Experiment
: buried organic soil has the best chance to survive
Exposed organic soil, Bury graved soil, Exposed graved soil don’t work
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