# Linked Questions

17 questions linked to/from What prevents predator overpopulation?
5 votes
3 answers
2k views

### Initial population when I count backwards?

My question deals with the number of ancestors it took to produce me: --> To produce me, it took 2 people (my parents) = ($2^1$) people = 2 --> One generation further included = ($2^1 + 2^2$) ...
4 votes
1 answer
158 views

### Replicator dynamics giving probabilities greater than 1?

I have a linear replicator equation and I want to simulate its dynamics to find the resting point and hopefully the Nash equilibrium. I defined strategies' payoff as $\vec f = C*\vec p+ \vec b$, ...
3 votes
2 answers
71 views

### Interesting examples of models [closed]

I am studying the general use of models in biology in terms of methodology, applications, usefulness etc, and I would really appreciate any recommendations of some specific examples of models from any ...
0 votes
1 answer
157 views

### If wolves (or foxes) are fitter than rabbits, why rabbits have not become extinct? [duplicate]

I do not pretend to "demolish" the Darwinian theory of biological evolution and the "survival of the fittest", that's far from my intention. I have this doubt because of the fact that humanity, as ...
3 votes
2 answers
4k views

### Can predator-prey relationship be an example of negative feedback?

Predators eat their prey, prey population decreases. This results in the predator population to decrease, so less prey are consumed which causes the prey population to increase. Therefore, if the ...
3 votes
1 answer
290 views

### How to give a biological interpretation to this phase portrait?

Consider the following system and analyze its behavior. \begin{array}{rl} \frac{dA}{dt} &= A \left( 2-\frac{A}{5000}-\frac{L}{100} \right)\\ \frac{dL}{dt} &= L \left(-\frac{1}{2}+\frac{A}{...
-4 votes
1 answer
218 views

### Wasn't extinction of dinosaurs necessary? [closed]

Beginning from the triassic era, dinosaurs crawled for millions of years. So my basic idea is, that had the dinosaurs not been wiped out, they would have eaten all the flora on the planet then. ...
4 votes
2 answers
627 views

### References concerning the relative population sizes of predator and prey

In an ecosystem, say there are two species in a predator-prey relationship. What is the most typical ratio of these species' population densities? For instance, it could be that for every fox, there ...
1 vote
1 answer
239 views

### How can a species switch from r to K - reproductive strategy in a single generation?

I ask because it seems as though humanity is in the midst of doing exactly this. Only a few decades ago, human population was growing exponentially, and it seemed destined to keep growing until ...
10 votes
4 answers
2k views

### Why are the fertility rates of large predators kept low?

Predators at the top of a food chain, like lions, seem to have a relatively low fertility rate, which fits well to the ecosystem and avoids overpredation. But what is the mechanism that keeps the ...
11 votes
5 answers
660 views

### What was the first piece of work in computational biology?

What was the first piece of work in computational biology? I'm ideally looking for a paper. I am not interested in works that involve data management or data analysis but work that model biological ...
5 votes
3 answers
3k views

### Exponential growth equation and bacteria

I'm a microbiologist, but I'm teaching some ecology in my intro-level course, so when we got to population growth, I thought I'd use the example of a microbial population. But, I hit a strange problem ...
5 votes
2 answers
733 views

### Does an increased reproduction/mortality rate provide an evolutionary advantage?

If a species has a high mortality/birth rate, then it is able to adapt to changing environments more quickly than species that live for a long time. Without a high mortality rate, food and other ...
27 votes
3 answers
12k views

### Why haven't prey evolved the ability to always outrun their predators?

I can understand why some prey can't outrun a recently evolved species. However, since cheetahs have existed for so long, why haven't its prey evolved to always outrun it, driving cheetahs to ...
4 votes
1 answer
273 views

### Guide to learning about Population biology / ecology / dynamics for a non-Biologist

I'm an applied mathematician who works in the field of feedback control systems but has been becoming interested in looking at population biology (e.g. Lotka-Volterra, Mathusian growth,etc.) from a ...

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