 |
- Bulletin
Board
-
- Conservation Biology
- Biology 5548/5548G
- Instructor: C.
Ray Chandler
|
|
The bulletin board is the site where
I will post grades, assignments, homework, practice problems,
etc.
- PRACTICE PROBLEMS:
-
- 1. One population has 30 individuals
(10 with genotype AA and 20 BB). A second population has 50 AA
and 20 BB. What is Hs for the first population? the second population?
What is Ht and why is Ht bigger than Hs?
-
- Hs = .442 Hs = .408 Ht = .480 Wahlund
Effect
-
- 2. If N = 82, what proportion of gentic
variation will be lost each generaton? How much will remain of
5 generations?
-
- 0.6098%, 0.96988
-
- 3.What is Ne if there are 66 females
and 39 males in a population?
-
- 98.057
-
- 4. What is Ne if a population has 260
individuals in year 1 and then 20, 250, and 300 in subsequent
years?
-
- 65.38
-
- 5. If a source population has a lambda
of 1.2 and a sink population has a lambda of 0.9, then sink populations
will have how many more individuals than source populations?
-
- 2x; twice the number
-
- 6. A rodent population has a genration
time of 1 year and the variance in female litter size is 2.1.
If there are 120 rodents, what is Ne?
-
- 117.07
-
- 7. Robins occur at a density of 3.1/ha.
The variance in their dispersal distance is 3.2. What is their
neighborhood effective population size?
-
- 124.658
-
- 8. A metapopulation occupies 52% of
the available patches at equilibrium. If c = .5, what is the
extinction rate in this metapopulation?
-
- e = .24
-
- 9. How many habitat patches do I need
to maintain to a population with 40% patch occupancy to persist?
-
- at least 57
-
-
-
Return
to the Conservation Biology homepage