Lec 2

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Department
Biological Sciences
Course
BIO SCI E182
Professor
Peter A.Bowler
Semester
Spring

Description
Lecture 2 E182 Read the abstract, introduction, and conclusion, and results He’ll tell us which scientific names to memorize Abiotic Selective Characteristics • Med Basin = frequent fires the most (occurs in less than 50 year time intervals) • SWAustralia = fire intervals every 3-20 years • SWAfrica and Australia have poor soils = have helped in the development and spread of bulb plants Fig 5.6 • The similarities between these communities of California and Med Basin is Chile PlantAdaptations in Mediterranean climates • specialized leaves (drought-resistant) • Annuals (life cycle is yearly) Encelia • soft leaf (doesn’t break) Black Safe • Seasonally recurl leaves to avoid water loss Buckwheat • leaf recurcler Prickly Pear Cactus • more prominent down South Strategies plants use to avoid the summer drought in MTE’s • Annuals are dead during the dry season and bloom during the wet season Soil nutrients • Chile and the Med Basin have very rich soils • South Africa andAustralia have poor soils Mycorrhizal associations important in Mediterranean zones Arbuscular Mycorrhizae don’t penetrate the plasma
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