Mission2006 Team3 - Flora Jean Marie Downing George Eng Tanzeer Khan Sarah Newman 2016/7/1 Juliana Perez Shan Riku Catherine Yao 1 Our Team’s Goal & Time Line What is the Amazon Rain Forest? September 23- October 7 What are the Threats? September 23 – October 7 Monitoring October 7 – November 14 What Can We do? October 7 – November 14 *After November 14 – Preparation Period for Final Presentation 2016/7/1 2 Before Research - The difference between flora and fauna - Flora will cover all plants, fungi, and algae - Fauna will be cover animals, monerans, and all other protists About Tropical Rain Forest The definition of tropical rain forest is those forests which receives more than 2000mm rain per year the coldest mean monthly temperature will not fall below 18 C. About Amazonia The world's largest tropical rainforest, spanning more than half of Brazil Containing half of present-day rainforest. 2016/7/1 3 Before Research Division of Layers The Emergent Layer: Contains the tallest trees in the rainforest(150~200 feet) The Canopy: The primary Layer of the rainforest(15~150 feet). The Understury: Seldom grow to more than 12 feet.Difficulty with pollinization because of the lack of air movement. The Forest Floor: Almost no plants (because of 0-2% light & 100% humidity)Few flowering plants, mosses, herbs, and fungi. 2016/7/1 4 What is the Amazon Rain Forest? History 1. 2. Factors to determine the state of rain forest Number of Plant Species Vegitation by examining the pollen or macrofossil of representative plants. by examining the extinctions and new appearances of species 2016/7/1 5 What is the Amazon Rain Forest? History There were three major climate change in history of flora. Cretaceous extinction event Marked reduction in floristic diversity Ecocene cooling event Less effect on South Africa, which is the main reason of the high generic diversity of Palmae in South America in present-day. The sudden cooling in 2.7 Ma Cold period in 2.2~1.0 Ma No desiccation, which enabled the survival of very diverse rain forest 2016/7/1 6 What is the Amazon Rain Forest? Biological Aspects There are several different kinds of rainforests. 1. Tropical lowland evergreen rainforest Tropical semi-evergreen rainforest Montane rainforest Heath forest Peat Swamp forest Freshwater swamp forest 2. 3. 4. 5. 6. 2016/7/1 7 What is the Amazon Rain Forest? Biological Aspects 1. 2. 3. 4. Besides trees, there are many other kinds of vegetation Especially geared towards finding light: Lower there live: On the forest floor there live: In forest succession: 2016/7/1 8 What are the Threats? Logging A monocyclic silvicultural system is used in the Amazon rainforest. The results are: Shifting species composition Compacted soil Dammed streams Vulnerability to fires Encourages other activities, e.g. poaching, land-clearing for agriculture 2016/7/1 9 What are the Threats? Agriculture This destroys the delicate soil profile. Rainforest cycles the soil used so it is self-sustaining. But crops using only some portions of the soil intensively, therefore damage it. No more new crops can be grown after a certain period (~5 years), and the forest cannot regrow in the ruptured soil. Result: Rainforest destroyed for more space, and used space is left as an infertile, barren wasteland. 2016/7/1 10 What are the Threats? El Nino/Climate Change Evidence of El-Nino events Effects of El-Nino events and relevance to current climatic change Vulnerability of epiphytes to climate change Affect on CAM cycles (CAM-idling) Epiphyte role in rainforest and possible monitoring tool 2016/7/1 11 What are the Threats? Deforestation There are two great causes: One is the demand of wood: the governments sell logging concessions to raise money for projects, to pay international debt, or to develop industry. The other is the transformation of the forests in surfaces dedicated to agriculture and cattle ranch. 2016/7/1 12 What are the Threats? Deforestation Deforestation increases the amount of CO2 and other trace gases in the atmosphere. The deforestation of tropical rain forests is a threat to life worldwide. Deforestation may have profound effects on global climate and cause the extinction of thousands of species annually. The future requires solutions based in solving the economic crises of countries holding rain forests, as well as improvement of the living conditions of the poor people often responsible for deforestation. 2016/7/1 13 Future Plan We Divide our group into… Monitoring Protection We also continue characterizing the Amazon Rain Forest (focused on Brazil) 2016/7/1 14 Contact Info Website: http://web.mit.edu/12.000/www/m2006/tea ms/r3/flora/index.html Mail: rain3@mit.edu Thank you!!! 2016/7/1 15