(4) Common Name of Organism (Genus) Type of Organism Producer or Consumer? Filter Feeder? (Yes/No) Stationary or Mobile? Nori Seaweed (Porphyra) Algae Producer No Stationary Black Pine (Neorhodomela) Algae Producer No Stationary Coral Weed (Corallina) Algae Producer No Stationary Mussel (Mytilus) Mollusk Consumer No Stationary Acorn Barnacle (Semibalanus) Crustacean Consumer Yes Mobile Goose Neck Barnacle (Mitella) Crustacean Consumer Yes Mobile Whelk (Nucella) Mollusk Consumer No Mobile Chiton (Katharina) Mollusk Consumer No Mobile Starfish (Pisaster) Echinoderm Consumer No Mobile Click the RESET button to return the community to its initial state. Use the library to answer the following question: If you slipped on a rock while exploring a tide pool and your knee became inflamed, which of the three algal species might help reduce the swelling? (1) Nori Black Pine Coral Weed (Highlight one) Use the information in the Introduction and Library pages to fill in the blank spaces in the following table at the top of the next page. Click on the names in the SPECIES LEGEND in the upper right corner of the screen to bring up library pages for each species. The team should then share responses and record the consensus in this TLN. As you conduct this lab, each team member should record his/her own ideas regarding the questions posed in the lab manual. The background information and introduction to ecological concepts will help you to better understand the simulation model. | 1 Make sure that you have read the introductory section of lab activity 1. Then reconvene as a team and record the consensus in this TLN.
As you work through the simulation experiments EACH team member should record data and answer questions, individually, in their own lab manual. 1 This is referring to the consequent effect of starfish removal on overall community structure Be sure to read all of the background material in Activity 1 – What Structures Communities within Ecosystems BEFORE you begin the SimBio simulation experiments. 1 Community stability will decrease because as population sizes of various species grow while others shrink, the homeostasis of the community will be heavily impacted, creating a ripple effect across both species who starfish eat and species who eat starfish.
Species evenness will be skewed and the number of members in various species would be less related because the species who starfish eat would see growths in population sizes, whereas species who eat the starfish would see diminished population sizes. Furthermore, any species who rely on starfish for their diet would also fail to survive. Species richness will decrease because with the removal of starfish, there is one less species immediately.
ACORN BARNACLE MANUAL
Be sure to consult the lab manual for the definitions of the terms in the table below. WHAT STRUCTURES COMMUNITIES Meeting Robert Paine’s Starfish (5) Record your team consensus hypotheses regarding how the removal of starfish from rocky intertidal communities will effect species diversity (richness and evenness) and community stability in Paine’s experiment and why.
ACORN BARNACLE FULL
Exploring Keystone Species Team Lab Notebook (TLN) Team Name: By: (Enter the full names, and team roles of the team members who are present at today’s lab) Date: PRE-LAB ACTIVITY 1.
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