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Read along with Chapter 20 in text Review Vocabulary assignment

Environmental Survey. Read along with Chapter 20 in text Review Vocabulary assignment. Environmental Survey. ECOLOGY. The study of the relationships among organisms in an environment. Parasitism Mutualism Commensalism. Symbioses (relationships among living things).

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Read along with Chapter 20 in text Review Vocabulary assignment

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  1. Environmental Survey • Read along with Chapter 20 in text • Review Vocabulary assignment

  2. Environmental Survey

  3. ECOLOGY • The study of the relationships among organisms in an environment. • Parasitism • Mutualism • Commensalism

  4. Symbioses (relationships among living things) 1. Parasitism – relationship in which an organism lives in or on another organism and causes harm • Ectoparasite • Endoparasite

  5. 2. Mutualism A relationship where both organisms benefit

  6. Mutualism • Clown Fish / Anemone • The anemone gets food particles from the fish leftovers • The fish receives protection from the anemone’s tentacles • The clown fish is unharmed by the toxins in the stinger • Insects / Flowers • The insects receive nectar from the flower • The flower uses the insects to carry pollen to other flowers for reproduction

  7. 3. CommensalismA relationship where one organism benefits and the other is unaffected

  8. Commensalism • The whale species / barnacle • The whale is neither helped or harmed • The sedentary barnacle has a place to live and get a variety of food • Tropical Birds/ Army ants • Ant are unaffected by birds following them as they look for food • Other insects that flee from the army ants are quickly eaten by the birds.

  9. Biotic vs. Abiotic

  10. Biotic vs. Abiotic • Vegetation • Animals • Fungi • Bacteria • Algae • Rocks • Gases • Water • Hydrocarbons • Toxins • Sun

  11. Trophisms“How one eats” • Heterotroph (consumer) • Omnivore • Carnivore • Herbivore • Autotroph (producer) • Decomposer

  12. FOODWEBS Feeding relationships among producers, consumers and decomposers

  13. Producers are the foundationPrimary, secondary and tertiary consumers are the bodyDecomposers break down organisms that have died. Anatomy

  14. BIOMASS • Amount of energy that can be passed along among organisms in an ecosystem • Highest with producers, lowest at the top with carnivores http://www.youtube.com/watch?v=TE6wqG4nb3M&feature=related

  15. Invasive Species“non – native” Describes a species that has been introduced into an area that does not belong there !!

  16. Invasive Species : Upset the balance of the food web in an eco – system Can cause extinctions of “keystone species” Result in collapse of food web – destruction of an ecosystem.

  17. Emerald Ash Borer

  18. ZEBRA MUSSELS

  19. Water treatment out flow Boat engines Locks / dams Mussel filter water, no food for smaller plankton Zebra Mussel Damage

  20. Zebras and Goby Fish in Lake Erie http://www.youtube.com/watch?v=qxxgflwX2Fg

  21. The Bullfrog !! http://www.youtube.com/watch?v=YwEL3fwsvIA&feature=related

  22. Other Common Invasives Northern Snakehead Asian Carp

  23. Last but not least…The most invasive of all…The Cane Toad

  24. Invasive Species Questions How does the Ash borer larvae affect the Ash tree? Why is firewood a concern in preventing the spread of the Ash Borer? How did the zebra mussel arrive in the US? Describe the destructive relationship between the Zebra mussel and Goby fish in Lake Erie. List some of the negative health affects that result from lake fish consumption.

  25. 6. How could the spread of the Northern Snakehead result in ecological destruction of fresh water ecosystems? 7. Explain 2 negative affects of the Asian Carp on the Illinois River. 8. How did the bullfrogs in France affect local ponds? 9. Why was the Cane toad brought to Queensland AUS? 10. Describe some of the negative affects observed by the cane toad in AUS?

  26. As a result of illegal importing, a cane toad was brought into swpa. The toad escaped into the stream at Richardson Park. Compose a 2 paragraph essay explaining: • How the introduction of the cane toad will affect the local ecosystem? • How could the invasive toad population be controlled?

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