1. Plant Life History

2. Terms Life history terms: - r- selected vs K- selected
- Early successional vs late successional
- Annual, perennial, biennial (two forms, not always two years)
Iteroparous (polycarpic) vs. semelparous (monocarpic)
Shade tolerant, intermediate, intolerant
Deciduous vs. evergreen
Broadleaved vs. needle leaved
vernal herbs (spring wildflowers), summer green species,
late flowering species
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3. 8.1 Digitalis purpurea is a biennial—a short-lived monocarpic perennial
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4. 8.4 Arabidopsis thaliana is a small annual mustard
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5. 8.5 Cirsium canescens is a “biennial”
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6. 8.6 Agave has semelparous rosettes that flower only once
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7. 8.7 Grime’s triangular or C-S-R model
Grimes life history (ecological) classification
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8. 8.8 Grime’s characterizations of large groups of plants according to his C-S-R model
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9. ep2e-tbl jpg

10. 8.11 “Masting” Reproductive synchrony in Astragalus in 3 populations in Idaho and Montana (2)
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11. Phenology

12. Question:
What are the seasonal patterns of species dominance and diversity in the herbaceous layer of an old-growth deciduous forest

13. Question:
What are the seasonal patterns of species dominance and diversity in the herbaceous layer of an old-growth deciduous forest

15. Question: Does this species have a different phenology than native shrubs?

16. Native species
Leaf development is much earlier.

17. Native species
Leaf senescence is much later

18. Question: Is climate change altering seasonal patterns in the local flora?

19. Plant Life History