Refer to the Tables and the Figure

question 42

Essay

Refer to the tables and the figure.
Figure 10
You are studying succession and colonization at two sites, site 1 and site 2. You sample the abundance of two species at the sites and determine their percent cover at each site and time period. Your data are shown in Tables 1 and 2 and are graphed in Figure 10.Answer the following questions:
a) Based on percent cover of species 1 and species 2 at each site, determine the percent of space that is both occupied and unoccupied at each site for each time period. Enter the data into Tables 1 and 2 to create two new tables (these will be referred to as Tables 3 and 4).
b) Using the data in Tables 1 and 2, add lines to the graphs in Figure 10 to plot how the percent of unoccupied space changed over time at both sites (this will be referred to as Figure 11).
c) Using the data in Figure 10, create a table (this will be referred to as Table 5) with summary data on each site. Answer each question for each site.
• How much biomass was present at time 0?
• Which species was the earlier colonist?
• What type of succession occurred early in the study period?
• Which species is dominant at time 8?
• When is the total amount of available area fully utilized by the species at each site?

---

Definitions:

Demand Characteristics

Factors in an experiment that suggest to participants how the experimenter would like them to behave.

Filler Measures

Tasks or questions used in research to distract from the main variables of interest or to disguise the study's true purpose.

Obscure

Not clearly understood or expressed; lacking clarity or distinctness, often resulting in being unknown or little known.

Wait List Control Group

In a therapy outcome study, group of people that functions as a control group while an experimental group receives an intervention and then receives the intervention itself after a waiting period.