Ecology of South Florida (EVR 3013) LECTURE 12
INTRO ECOL III
RESOURCE ALLOCATION & POPULATION BIOLOGY
Most of the people who retire to Florida
Are wrinkled and they lean on a crutch.
And mobile homes are smothering the Keys
God, I hate them bastards so much.
I wish a summer squall
Would blow them all
Way back up to Fantasy Land.
They're ugly and square
They don't belong there
They looked a lot better as beer can.
J. Buffet
I. RESOURCE ALLOCATION
A. Leibig's law of the minimum
growth, reproduction, primary production, and population size and other ecological processes limited by the factors in shortest supply, relative to the need, other resources may go unused.
B. Shelford's law of tolerance
- too much of any resource can be detrimental
C. Resource allocation
1. Principles
2. How to survive
3. Examples
- a. Sunlight-- Shade tolerant plants' larger less lobed and thinner leaves
- b. Water--Compound leaves conserve woody tissue often found in dry areas
II. POPULATION BIOLOGY
A. Population
all individuals with a high probability of mating with each other; also called demes - demography
B. Stable age distribution
C. Natural Increase
r = intrinsic rate of natural increase
r = (b + i) - (d + e)
D. Exponential growth
dN/dt = bN - dN = (b-d)N = rN
E. Logistic (Fig. 9.3)
dN/dt = rN(1 - N/K)
= rN(K-N/K)
dN/dt = rN - rN2/K
III. Population Regulation
A. Stress phenomena
B. Predator Prey
C. Epidemiology
D. Food Quantity
E. Food Quality
Nutrient Recovery
IV. FLORIDA BIOTA IX: ANIMALS
(reptiles and amphibians)
Back to start, Back to lecture 10, 11, On to lecture13, 14 &15, 16, 17, 18, 19
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