BIO120H1 Lecture Notes - Lecture 17: Sonoran Desert, Sclerophyll, Saguaro

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BIO120H1 Full Course Notes
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BIO120H1 Full Course Notes
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Photosynthetic bark on trunks & branches; can grow without incurring heat load & water loss through leaves. Restricted to sonoran desert, adapted to episodic rains. Grows to 15 m, 200 yr, 5+ tonnes. Can absorb 800 l of water from one storm, use it gradually for growth. Mnemonic digression for water storage: david grundman (d. 1982) Deciduous habit: dropping leaves during dry or cold seasons can reduce water stress and tissue damage. The most important groups of land plants evergreen conifer are angiosperms and conifer. Loosely, evergreen is used as a synonym for conifer, ater and ifers. Loosely, evergreen is used as a synonym for conifer, . But some conifers are not evergreen and many evergreens are not conifers (especially in wet tropics) Prominent local examples: hardwood trees such as maples, oaks. Prominent local examples: coniferous trees such as pines, firs, spruces. Influences gas exchange through laminar vs. turbulent flow or fluids over surfaces.