Lab 3 – Biodiversity
Demonstration 1: Interdependence of Species
Table 1: Interdependence of Species Results
Species Missing (Bead Color and Name)
POST LAB QUESTIONS
1. Explain how the ecosystem was affected by the missing species for each round of the demonstration.
a. Round 1 = In this round I removed lichens from the ecosystems. This would have a huge effect on the ecosystem because they play a role in the creation of soil where plants obtain nutrients. If they are taken out it can affect trees and flowers which affect bees, because they depend on them. This also effect humans that depend on the bees for honey and the fruit that the bees help pollinate. b. Round 2 = In this round humans was removed. By removing humans there was a little effect on the ecosystem. We are the top of the food chain and, but our actions do more damage then good for the environment. c. Round 3 = In this round bees was removed. This is a huge problem in today’s environment and effects the pollination of plants. Because of the removal of bees it really affects the ability of plants to produce fruits, which allow humans food. d. Round 4 = In this round flowers was removed. This was an affects to the ecosystem because flowers deliver food for bees. Bees provide honey and pollinate plants. Because of the removal of flowers it eventually removes bees which effect humans and the food chain.
2. Provide one action we as humans engage in that leads to the extinction of each of these components.
Action affecting Lichens = Humans affect lichens with air pollution, industrialization and the introduction of sulphur dioxide can kill lichens.(Air Quality and Lichens, 2014) Action affecting Trees = Humans cut down trees to use for lumber, and to expand. This deforestation is the largest way for humans to affect trees. Action affecting Flowers = The way humans are affecting the flowers is by over population...
References: Air Quality and Lichens Retrieved from http://www.air-quality.org.uk/19.php
Shah, A. (2014) Why is biodiversity important? Who Cares? Retrieved from
Turk, J., & Bensel, T. (2011). Contemporary environmental issues. San Diego, CA: Bridgepoint Education, Inc.
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