“keystone species, shrinking red knots, and biomes”

“Keystone Species, Shrinking Red Knots, and Biomes”

For your primary post, please respond to one of the following three topics with a post of at least 125 words that addresses each point given in the instructions. Also, please reply to at least one fellow student on any topic.

Topic 1 :  Keystone Species. Watch the video entitled “Some animals are more equal than others…” (1)* Then completely describe the concept of a keystone species, giving specific examples from the video.  

Topic 2 [articles]: Shrinking Red Knots. Read two of the following three articles about shrinking Red Knots (2)*, (3)*, (4)*, or research additional information on your own. Then, address the following issues:    

  • (a) Explain how the lifecycle of the Red Knot depends on hatchlings emerging at the same time as the insects hatch.  
  • (b) What are the long-term ramifications of having a mismatch between the bird hatch and the insect hatch?  
  • (c) Of the two articles you read, which of them do you feel was most informative?  Why?

Topic 3 [research]: Biomes. The term “biome” is described in the textbook. For this topic, describe the biome where you grew up (or where you currently live). Identify your location, the biome of the region, and describe the major characteristics of that biome. Add enough detail and commentary from your own experience, so that your answer is 125 words or more. If you’re really ambitious, you could consider looking up the EPA “ecoregion,” which will give additional details about your region.  

*References (in Strayer Writing Standards format).

  1. HHMI Biointeractive, May 3, 2016, Some animals are more equal than others: keystone species and trophic cascades., https://www.youtube.com/watch?time_continue=1142&v=hRGg5it5FMI
  2. Helen Briggs, May 13, 2016, Shrinking bird pays the bill for Arctic warming, http://www.bbc.com/news/science-environment-36266692
  3. Joseph Dussault, May 12, 2016, Climate change chould be shrinking these arctic birds, http://www.csmonitor.com/Science/2016/0512/Climate-change-could-be-shrinking-these-Arctic-birds
  4. Carl Zimmer, May 12, 2016, Climate change and the case of the shrinking red knots,  http://www.nytimes.com/2016/05/17/science/climate-change-bird-red-knots.html?_r=0
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