The Article The 27 Year Decline Of Coral Cover On The...

The article The 27–year decline of coral cover on the Great Barrier Reef and its causes investigates the spatial and temporal dynamics of coral cover, identifies the main drivers of coral mortality, and quantifies the potential rates of recovery for the Great Barrier Reef. Authors Glenn De’ath, Katharina Fabricius, Hugh Sweatman and Marji Puotinen express concern about the continued degradation of the ocean’s coral reefs. The question the authors are interested in answering is what is cause the degradation of the reefs. They explore the effects on the reefs from things such as coral predation by crown-of-thorns starfish, tropical cyclones and coral bleaching. One popular idea is that whole reefs have been destroyed by the crown-of-thorns starfish. The starfish is known to prey on coral and digest the surface of its living tissue from the coral skeletons. These skeletons are essential for reef integrity alongside with the mass of coralline algae. Tropical cyclones serve as another disturbance for the reefs. Studies show that coral breakage increases with maximum cyclone wind both inshore and offshore. On average about 5% of corals are broken on reefs at â€Å"22 cm s-1 winds†, while 50% are broken at the reefs with strongest winds (Fabricius, 2010). Coral bleaching is defined as the loss of intracellular endosymbionts from reefs coral through either way of expulsion and or loss of algal pigmentation. Bleaching happens when conditions necessary for sustaining coral sShow MoreRelatedBusiness Plan for a Dive Shop10436 Words   |  42 PagesPreface Throughout the past block, MRT Management has been working on a business plan which from MRT Management prospective will have great an opportunity to become a successful business. MRT had to implement all the knowledge gained during the past three years at the Hotelschool The Hague in order to accomplish this report. Furthermore, personal experience and knowledge as well as intensive research were the foundation of this report. The following Business Plan is written for the benefit ofRead MoreSience23554 Words   |  95 PagesEnvironmental Issues Webquest Global Warming and the Greenhouse Effect Go to http://www.globalissues.org/article/233/climate-change-and-global-warming-introduction and answer the following questions. 1. What is the greenhouse effect? 2. How does it relate to climate change? 3. Draw and label the greenhouse effect. 4. Scroll down to the section â€Å"The Greenhouse Effect is Natural. What do we have to do with it?† What are some ways that humans are thoughtRead MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words   |  656 Pagesdemarcate historical epochs, the twentieth century does not appear to be a very coherent unit. The beginnings and ends of what we choose to call centuries are almost invariably years of little significance. But there is little agreement over when the twentieth century c.e. arrived, and there were several points both before the year 2000 (the collapse of the Soviet Union, the reunification of Germany, the surge of globalization from the mid-1990s) and afterward (9/11, or the global recession of 2008)