Climates, Tropics, and Extinction
Climates, Tropics, and Extinction PBIO1030
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This 8 page Class Notes was uploaded by Steven Hernandez on Tuesday December 1, 2015. The Class Notes belongs to PBIO1030 at Ohio University taught by Dr. Thompson in Summer 2015. Since its upload, it has received 23 views. For similar materials see Plants and People in Biomedical Sciences at Ohio University.
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Date Created: 12/01/15
Monday November 16 2015 PBIO Climate in Different Environments 300 Boreal forest Terrperate deciduous forest 250 Ten39perate rainforest 200 I 50 Tropical rainforest Permanent I mm ice 100 50 Average Anmai Precipitation cm 0 20 10 0 IO 20 30 Average Annual Temperature C Desert CAM plants Xerophytes W both basically means of protection against Roots that go deep into the earth to find water adaptations to prevent loss of water through evaporation in extreme heat Ex creosote Bush Saguaro National Park cacti Mesquite 25 m long taproot Monday November 16 2015 Kenaf and Cars Equal in strength to wood pulp Going cycle is shorter 46 months Less waste as car is lighter Absorbs more waste prevents it from going into the atmosphere ThoAllNowFordEscapo WMIEMW W Guayule Biofuel Bagasse currently used to make particle board Provides same amount of energy as charcoal Shrubs ready for harvest 2 years after planting then again in 15 years Hardy desert plant that requires little care easy to grow in different countries Monday November 16 2015 Jojoba Alternative to oils commonly found in sperm whales extremely endangered species Grasslands Importance to people grasses can be sodforming compacted mats of soil roots and rhizomes Food for making houses Rhizomes have rapid regrowth after burns 1900 s Dust Bowl Severe sand storms destroyed farming area Savanna Grassland in a tropical area Tundra Grassland in a polar area with a sheet of ice called permafrost covering it There s actually a lot of flora and fauna in this area Wednesday November 18 2015 PBIO Tropical Forests Conservation Sustainable means Indigenous are able to take the fruit or materials from plants without having to take them down or disrupt the environment planting sustainable plants to promote environmental growth Examples of Environmental Problems Replacing rainforests with pasture lllegal means of lumbering Ethnomapping documents Noting history and traditions of native areas locations of forests plants and certain resources Brazil nuts Used as a means of food Tagua palms Can harden up in a way that can be used for jewelry Effective in replacing ivory from elephants Monday November 30 2015 PBIO Plant Extinction Endemic Native only to that region for biodiversity conservation found only in that area Ex lakeside daisy Ohio Extirpated Taken out of and no longer found in native area locally extinct Ex Illinois tick clover no longer found in Ohio Monday November 30 2015 Robbins Cinquefoil Endemic to NH 95 of population in one acre of New Hampshire Alpine ecosystem Discovered in 1824 on a horse path Rare collection item Habitat is now part of the Appalachian Trail Hiking boom in 1970 Endangered species list in 80 s 90 s Monday November 30 2015 Conservation efforts for Plant Relocate the original bridal path and a hiking trail away from the critical habitat Appalachian Mountain Club AMC conducted population studies AMC educated hikers signs etc New England Flower Society planted seeds college by AMC which were eventually established as new populations 25x increase between 73 and 99 removed from endangered species list in 02 Endangered Species Act Passed by Congress in 1973 by Nixon expanded previous ES Preservation Act of 1966 to plants as well as animals Endangered means to be danger of extinction through most of its geographical range Threatened means most likely to be endangered Climate Change We are expecting a 934 extinction Conservation has proven to protect plant and overall biodiversity Monday November 30 2015 Biodiversity Hotspots 44 of all vascular plants are in hotspots Have a richness and diversity of species Can be dangerous to specific and severe loss of habitat Diversity North America US and Canada 20000 plant species Mexico 22000 plant species due to more tropical climates that lead to more diversity
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