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Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
Ose de feo article  ppp 2013
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Ose de feo article ppp 2013

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Presentation by Ose Pauleus …

Presentation by Ose Pauleus

Published in: Technology
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  • 1. Threats to sandy beach ecosystems: A review By Defeo O. et al 2009 Paper discussion Animator: Ose Pauleus
  • 2. About the main author • Omar Defeo o Faculty lecturer & Investigator o Member of the National Academy of Sciences of Uruguay o Head of Department of Ecology and Evolution. o FAO Consultant. o Work on marine ecology and fisheries management.
  • 3. Key words • Sandy shore: o Loose deposits of sand, gravel or shells that cover the shoreline in many places oConsist of three entities: surf zones, beaches and dunes, linked by the interchange of material particularly sand ( Dyer 1986) oClimate change a change in global or regional climate patterns, apparently from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels "climate change". Oxford Dictionaries. Oxford University Press, n.d. Web. 26 August 2013. <http://oxforddictionaries.com/definition/english/climate-change>.
  • 4. Context • Expansion of human population o Shifts toward the coast (sandy shores) • Economic progress o development • Climate change o See level arise http://lsds.co.za/current-clients/
  • 5. Goal • Wake up call • Awareness of human (our) pressures on shoreline.
  • 6. Ecosystem services • Sediment storage and transport • Wave dissipation and associated buffering against extreme events (storms, tsunamis) • Breakdown of organic materials and pollutants • Water filtration and purification • Nutrient mineralization and recycling • Water storage in dune aquifers and groundwater discharge through beaches
  • 7. Ecosystem services • Maintenance of biodiversity and genetic resources • Nursery areas for juvenile fishes • nesting sites for turtles and shorebirds, and rookeries for pinnipeds • Prey resources for birds and terrestrial wildlife • Scenic vistas and recreational opportunities • Functional links between terrestrial and marine environments in the coastal zone
  • 8. Stressors • Recreation • Cleaning • Nourishment • Pollution • Exploitation By Norb Psuty, Rutgers university
  • 9. Stressors • Biological invasions • Coastal development and engineering • Mining • Climate change
  • 10. Conclusion and recommendation • Management should be based on existing knowledge • More research to better understand marine ecosystems • Marine reserves and marine protected areas • Others????

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