The letter R
R
What letter represents the discrete rate of growth?
The fundamental niche
What is the niche organisms are limited to in the presence of competition?
1-a11N1-a12N2=0
What is the Lotka-Volterra zero-net-growth isocline of species 1?
Low metabolic rate and food demands
What are the benefits of ectothermy?
Robert MacArthur did both of these things.
Who co-authored the Theory of Island Biogeography with E.O. Wilson and developed optimal foraging theory?
r
What letter represents continuous growth?
The proportion of individuals that survive from birth to age x.
What is survivorship?
a11 < a12 and a22 < a21
What are the conditions for unstable equilibrium?
Broad, thin leaves
What leaf adaptations are found in the shade?
Richard Levins
Who developed the metapopulation occupancy model and often boasted of being a fourth generation marxist?
R*
What letter represents the minimum amount of a resource needed by a species?
When scramble-competition causes stand-density and plant size to be negatively related.
What is self-thinning?
R* = m/c
What equation represents the level of a resource present at equilibrium for a species?
To prioritize putting energy into reproductive ability over resource acquisition
Why might an organism not have a lower R*?
David Tilman
Who developed R* theory?
r-selected
What is a species called that has a short life cycle and high reproductive rates?
What is the number of people infected by an infected individual, equivalent to beta/gamma?
This adaptation prevent a penguin's feet from freezing off.
What is counter-current circulation?
When a species is highly impacted by edge effects.
What is one situation when a single large reserve would be preferred over several small reserves?
Michael Rosenzweig
Who described the paradox of enrichment?
rt (t is the Greek letter tao here there isn't a way to type it so I just put t)
What determines whether fluctuations will occur in population size?
The paradox of enrichment
What is the paradox resulting from the fact that increasing prey carrying capacity can destabilize the populations of both predator and lead to the extinction of both?
A population where an influx of migration pushes N above K, leading to a negative growth rate.
What is a pseudo-sink?
Building a metapopulation model at a small geographic or temporal scale would solve this issue.
How can a population ecologist build a model if they are limited in time and funding?
Robert May did both of these things.
Who mathematically determined that more complex food networks are less stable, and described the effects of time lag on generation size?