NRES 470 Models

These models and simulations have been tagged “NRES 470”.

Insight diagram

What are the effects of connectivity of subpopulations on population viability?


Grizzly Bear PVA Adult Dispersal
Insight diagram
Clone of jackson miller exponential growth lab
Insight diagram

What are the effects of connectivity of subpopulations on population viability?


Clone of Grizzly Bear PVA Adult Dispersal 4/27/18
Insight diagram
4b. Change the Age 1 mortality rate to 0.3. Run the simulation starting with 75 individuals, all in Age class 1. What happens? Is this a stochastic model? If not, why does it look like it has a random component?
No. It shows no randomness whether initial Age 1 population is 75 or 1000. Setting the time stamp to 0.1 eliminates the appearance of randomness.
Lab 3, Exercise 4: age-structured models in InsightMaker
Insight diagram

What are the effects of connectivity of subpopulations on population viability?


Grizzly Bear PVA Group Project(Apr18)
Insight diagram

What are the effects of connectivity of subpopulations on population viability?


Grizzly Bear PVA Adult Dispersal 4/27/18
Insight diagram

What are the effects of connectivity of subpopulations on population viability?


Grizzly Bear PVA Adult Dispersal 5/9/18
Insight diagram

What are the effects of connectivity of subpopulations on population viability?


Grizzly Bear PVA Adult Dispersal 5/9/18
Insight diagram
3b. Is the current population viable, under the criteria listed above? That is, is there a less than 5% risk of extinction over a 50-year time frame? Hint: use the Sensitivity Testing tool to run 500 replicates. Visualize the 95% quantile. For a viable population the 95% quantile should stay above 0 (extinction) up to at least year 50 of the simulation.
Lab 5, Exercise 3b (Minimum Viable Population)
Insight diagram

What are the effects of connectivity of subpopulations on population viability?


Clone of Clone of Grizzly Bear PVA Group Project(Apr18)
Insight diagram

1e. Let’s think through the problem one more time- we are uncertain about the true value of the per-capita birth rate, bb, for a rare species. The actual birth rate for this population could be anything from 0.15 to 0.35 - we really can’t say! Given this uncertainty, we want to know what the abundance will be after 15 years. If you were tasked with evaluating this question, which of the two plots you generated in (1d) would be most appropriate for answering this question? Why?
Rand(0.15, 0.35)
Fix(Rand(0.15, 0.35))
Lab 5, Exercise 1b through 1e
Insight diagram
Exercise 2, Problem 2b, Projection Matrix
LAB_4
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Human Population growth
In-class exercise: limits to growth
Insight diagram
jackson miller exponential growth lab
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demographic stochasticity
Lab 5, Exercise 2a
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Answer for question 3b
Lab 1 (3b)
Insight diagram

Is the effect of environmental stochasticity bigger at low or high abundances?
Environmental Stochasticity
Insight diagram
Lab 2 Part 1
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Insight into meese. Useless.
NRES 470 Moose
Insight diagram
Lab 5 Exercise 2
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Answer for question 3a
Lab 1 (3a)
Insight diagram

What are the effects of connectivity of subpopulations on population viability?


Clone of Grizzly Bear PVA Adult Dispersal 4/27/18
Insight diagram
Learning Insightmaker
Lab1_Population
Insight diagram
Exercise 2, Problem 2e.
Density dependent