April7-post - Lecture 37: April 7 Ecology & Evolution...

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1 Lecture 37: April 7 Ecology & Evolution of Tropical Forests • Planet Earth video • Biology of Tropical Forests - high NPP - global distribution - habitat for millions of species - mutualisms & specialization • Latitudinal Diversity Pattern - four hypotheses: productivity, energy, more time for speciation & intermediate disturbance • Threats to rainforest ecosystems Discussion Activity this week No readings – Exam Review; bring your Qs Check Qwizdom Points on SAMS https://cats.lsa.umich.edu/ Chapters 50 :1150-1152; 30 :682- 686; 29 :667-670; 53 :1236-1238 ~ 20 minutes – amazing filming of some of the diversity of species found in rainforests… angiosperms, fig trees, monkeys, insects, fungi, pitcher plants, etc. (it’s too bad we don’t have enough time to watch the entire episode) Planet Earth Video “Jungles” Tropical Rainforests: are most productive and biologically diverse ecosystems on land. In one rainforest >400 tree spp. ./ha NPP levels ~ 2 to 2.5 Kg C /m 2 /year Global Distributions of Rainforests Tropics: high temperatures (25 to 30 degrees C) and high annual rainfall
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April7-post - Lecture 37: April 7 Ecology & Evolution...

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