BSC3052 Conservation Biology FSU Exam 2 |2025
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Stochastic Models - (answers)- Give a range of outcomes from the same initial
conditions
- Most important when studying small populations and making short to medium
term predictions
- Most population viability analyses will include some form of stochasticity
Sources of Variation - (answers)- Environmental stochasticity
- Demographic stochasticity
- Catastrophes
Environmental Stochasticity - (answers)- Temporal variation in vital rates driven
by changes in the biotic or abiotic environment
- Local and small populations are often most at risk from environmental
stochasticity
- Increases extinction risk
- Bad years are bad for the average growth rate
- Strings of bad years can lead to extinction
Incorporating Stochasticity into a Count-Based Model - (answers)- *refer to slides
12-20 lecture 10 for math*