Problem set for the course Ecology I: The Earth System.

Problem set for the course Ecology I: The Earth System.

Approximately 50% of the quiz will cover new material: everything from Lecture 14 (Human Population Growth on November 3rd) through Lecture 18 (Prof. Sterman’s Lecture on November 19th) including competition and the niche, predation, and biogeography. The remaining 50% will be cumulative, and may cover anything from Lecture 1 through Lecture 13.  This includes the early earth, redox reactions, energy transformations and metabolism, biogeochemical cycles, the carbon cycle, primary and secondary productivity, Redfield ratio and limiting factors, ecosystem experiments, food webs, population growth, chemostats, and life tables.  Like Quiz 1 and 2, the questions will be primarily short answer, which can be responded to with a few sentences, a sketch with a description, or a brief calculation. We could also ask you to interpret a graph/data or give you a discussion question. Use Problem Sets 1-3, the Quiz 3 Study Questions, the Lecture Notes, and the Lecture Handouts as a top priority for studying. Make sure you are familiar with the articles that have been assigned. Remember to bring a calculator! 

Objectives: Estimate detention time and nominal residence time in a model basin

You will use two methods to estimate the laminar sub-layer thickness in the laboratory flume. The first method is based on the observed dissolution rate of Gypsum bars, and is described below.