Environmental Engineering Reference
In-Depth Information
(continued)
10
2.5
11
2.5
12
37.5
13
2.5
14
2.5
15
0
16
0
17
87.5
18
15
Fig. 5.14 Species accumulation curve
1. Create a performance curve + 95 % confidence interval using the
P. arundinacea
data above and calculating a cumulative mean.
2. Did you collect enough data to accurately estimate the abundance of
P. arundinacea
? Why or why not?
3. If you were trying to maximize efficiency while estimating an accurate abun-
dance of
P. arundinacea
, how many samples would you collect at this site and
sites similar to this?
4. According to the species accumulation curve (Fig.
5.14
), was the sampling
adequate to characterize species richness at this site?
5. How many samples would you need to collect to most accurately and efficiently
estimate species richness at this site and sites like it?
Exercise 2. Species Diversity Assessment
Compare the two plant communities below using diversity statistics. Determine
which statistics are most helpful, and why.
