Lab 3 Biodiversity
Lab 3 – Biodiversity
Demonstration 1: Interdependence of Species
|Table 1: Interdependence of Species Results |
|Round |Species Missing (Bead Color and Name) |
|1 |Linchens |
|2 |Bees |
|3 |Trees |
|4 |Flowers |
POST LAB QUESTIONS
1. Explain how the ecosystem was affected by the missing species for each round of the demonstration.
a. Round 1 = white bead representing lichens. Our laboratory reading for the experiment stated that lichens are instrumental in the development and needs for all species. The text stated, “Lichens play a part in the creation of soils from which plants can obtain nutrients. Like all living organisms, lichens need nutrients and energy to grow. Nutrients may be obtained from the air including dust, water, and from the substrate organisms grows on obtaining energy through photosynthesis, which is the role of the algal partner. They may also be incidentally fertilized hybrid and insect dung” (Bottcher & Rex, 2012, p. 43). With the information obtained from the reading, without lichens, bees, trees, flowers, and humans will all have negative repercussions.
b. Round 2 = Yellow bead, representing bees. No bees and lichens the trees will not be pollenated, which will result in a loss of a food
Demonstration 1: Interdependence of Species
|Table 1: Interdependence of Species Results |
|Round |Species Missing (Bead Color and Name) |
|1 |Linchens |
|2 |Bees |
|3 |Trees |
|4 |Flowers |
POST LAB QUESTIONS
1. Explain how the ecosystem was affected by the missing species for each round of the demonstration.
a. Round 1 = white bead representing lichens. Our laboratory reading for the experiment stated that lichens are instrumental in the development and needs for all species. The text stated, “Lichens play a part in the creation of soils from which plants can obtain nutrients. Like all living organisms, lichens need nutrients and energy to grow. Nutrients may be obtained from the air including dust, water, and from the substrate organisms grows on obtaining energy through photosynthesis, which is the role of the algal partner. They may also be incidentally fertilized hybrid and insect dung” (Bottcher & Rex, 2012, p. 43). With the information obtained from the reading, without lichens, bees, trees, flowers, and humans will all have negative repercussions.
b. Round 2 = Yellow bead, representing bees. No bees and lichens the trees will not be pollenated, which will result in a loss of a food
References: Hilmo, O., & Såstad, S. M. (2001). Colonization of old-forest lichens in a young and an old boreal< i> Picea abies forest: an experimental approach. Biological Conservation, 102 (3), 251-259. Chapin III, F. S., Costanza, R., Ehrlich, P. R., Golley, F. B., Hooper, D. U., Lawton, J. H., ... & Tilman, D. (1999). Biodiversity and ecosystem functioning: maintaining natural life support processes. Washington, DC: Ecological Society of America. Hazelbaker, J. (2008). Logging on national forests national forest management zero cut – no. Retrieved from: http://www.worldissues360.com/index.php/logging-on-national-forests-national-forest-management-zero-cut-no-26744/. Corbet, S. A., Williams, I. H., & Osborne, J. L. (1991). Bees and the pollination of crops and wild flowers in the European Community. Bee World 7 (2), 47-59.