Molecular Evolution
... FIGURE 3.11 Climate-Linked Invasion. Invasion of exotic plant species is correlated with reduced drought days in Switzerland. Removal of climatic stress may remove important constraints on the spread of these species. Reproduced with permission from Nature . ...
... FIGURE 3.11 Climate-Linked Invasion. Invasion of exotic plant species is correlated with reduced drought days in Switzerland. Removal of climatic stress may remove important constraints on the spread of these species. Reproduced with permission from Nature . ...
GLOBAL WARMING
... This year, Caribbean coral narrowly avoided another widespread episode of bleaching when sea temperatures briefly surpassed levels considered healthy for reefs. Up to 30 percent of the world's coral reefs have died in the last 50 years, and another 30 percent are severely damaged, said Smith, who st ...
... This year, Caribbean coral narrowly avoided another widespread episode of bleaching when sea temperatures briefly surpassed levels considered healthy for reefs. Up to 30 percent of the world's coral reefs have died in the last 50 years, and another 30 percent are severely damaged, said Smith, who st ...
Understanding Ocean Acidification
... impact than either on its own. Warming and acidification together result in faster reef degradation. Recent research by scientists has shown that coral will die at much lower temperatures if exposed to acidity at the same timev. Other animals, such as crabs, show more sensitivity to warming when pla ...
... impact than either on its own. Warming and acidification together result in faster reef degradation. Recent research by scientists has shown that coral will die at much lower temperatures if exposed to acidity at the same timev. Other animals, such as crabs, show more sensitivity to warming when pla ...
Climate change - GBRMPA ELibrary
... diet of seagrasses and any climate change impacts on seagrasses will also affect dugongs. ...
... diet of seagrasses and any climate change impacts on seagrasses will also affect dugongs. ...
Coral-reef-decline-2.10.12
... Great Barrier Reef has lost half its Coral since 1985. Guardian 2.10.12 Australia’s Great Barrier Reef has lost more than half its coral cover since 1985, according to a new study. The loss has been spurred by a combination of factors including hurricanes, coral-eating starfish and coral bleaching. ...
... Great Barrier Reef has lost half its Coral since 1985. Guardian 2.10.12 Australia’s Great Barrier Reef has lost more than half its coral cover since 1985, according to a new study. The loss has been spurred by a combination of factors including hurricanes, coral-eating starfish and coral bleaching. ...
PPT
... Climate change is changing precipitation patterns in the tropical Pacific more rain (What are the implications for rest of globe?) Present-day El Nino events are not unusual. (What caused the strong El Nino events in the 17th century, if anything?) ...
... Climate change is changing precipitation patterns in the tropical Pacific more rain (What are the implications for rest of globe?) Present-day El Nino events are not unusual. (What caused the strong El Nino events in the 17th century, if anything?) ...
details of threats to GBR
... • The Crown of Thorns starfish feeds on the polyps of coral, releasing neurotoxins to absorb the tissue of the coral and quite literally “sucking the life” out of the reef’s backbone. • If there are few predators (such as the Giant Triton) around, the Crown of Thorns can destroy parts of the reef. • ...
... • The Crown of Thorns starfish feeds on the polyps of coral, releasing neurotoxins to absorb the tissue of the coral and quite literally “sucking the life” out of the reef’s backbone. • If there are few predators (such as the Giant Triton) around, the Crown of Thorns can destroy parts of the reef. • ...
lesson 9: how does the greenhouse effect impact the ocean and
... The greenhouse effect occurs when carbon dioxide and other greenhouse gases trap infrared radiation (heat) in the atmosphere, thereby acting like a blanket that covers the atmosphere and warming the planet. Increasing concentrations of atmospheric carbon dioxide contribute to problems such as co ...
... The greenhouse effect occurs when carbon dioxide and other greenhouse gases trap infrared radiation (heat) in the atmosphere, thereby acting like a blanket that covers the atmosphere and warming the planet. Increasing concentrations of atmospheric carbon dioxide contribute to problems such as co ...
Slide 1 - GBRMPA ELibrary - Great Barrier Reef Marine Park Authority
... degrees can cause corals to bleach and die. Without corals, the future of reefs and the marine life they harbour is at risk. ...
... degrees can cause corals to bleach and die. Without corals, the future of reefs and the marine life they harbour is at risk. ...
UEB Sample 3 PDF file
... we have of saving these beautiful ecosystems lies in massively reducing heat-trapping gas emissions and stabilizing the earth’s climate within 2 degrees Celsius of pre-industrial levels.” The WWF report, The Implications of Climate Change for Australia’s Great Barrier Reef, warns that the frequency ...
... we have of saving these beautiful ecosystems lies in massively reducing heat-trapping gas emissions and stabilizing the earth’s climate within 2 degrees Celsius of pre-industrial levels.” The WWF report, The Implications of Climate Change for Australia’s Great Barrier Reef, warns that the frequency ...
File - All Hallows Geography
... Magnet for world’s tourists Countries in the Caribbean get over half their income from reef tourism Education and research Learn about marine life ...
... Magnet for world’s tourists Countries in the Caribbean get over half their income from reef tourism Education and research Learn about marine life ...
Coral bleaching
Coral bleaching is the loss of intracellular endosymbionts (Symbiodinium, also known as zooxanthellae) through either expulsion or loss of algal pigmentation. The corals that form the structure of the great reef ecosystems of tropical seas depend upon a symbiotic relationship with algae-like unicellular flagellate protozoa that are photosynthetic and live within their tissues. Zooxanthellae give coral its coloration, with the specific color depending on the particular clade. Some scientists consider bleaching a poorly-understood type of ""stress"" related to high irradiance; environmental factors like sediments, harmful chemicals and freshwater; and high or low water temperatures. This ""stress"" causes corals to expel their zooxanthellae, which leads to a lighter or completely white appearance, hence the term ""bleached"". Bleaching has been attributed to a defense mechanism in corals; this is called the ""adaptive bleaching hypothesis,"" from a 1993 paper by Robert Buddemeier and Daphne Fautin. Bleached corals continue to live, but growth is limited until the protozoa return.