作者:Ramon Alvarez 12 年以前
404
Biology 311D Concept Map - RAA2446
Biotic Potential
Always dependent on phenotype
Factors that control population growth
Genetic Drift
Growth Curves
Insufficient biological resources
Logistic Growth (S-Curve)
Emigration
Mutation
Random change in gene frequency
from one generation to another
Primates Evolved (60M Years Ago)
Selection
Homo Neanderthal
Resided in Europe
Exponential Growth (R-Curve)
Test 1
1. Food
2. Better medicine
3. Better sanitation
Human Evolution
1. Habitat destruction
2. Hunting
3. Species introduction
4. Disease
5. Hydridzation
Factors:
Hiertability and Selection Differential
1. Stabilizing
2. Directional
3. Disruptive
Homo Habilus (2M-1.8 M Years Ago)
Ardiditicus (5 M Years Ago)
Population Regulation
Homo Sapien (350,000 Years Ago)
Enviromental Resistance
Founder effect and bottle neck effect
Test 2
"Road of Homosabiens"
1. Insufficient Food, Water, & Nutrients
2. Disease
3. Predation
4. Competition
5. Insufficient living space
6. Adverse weather conditions
Extinction
Density Dependent mortality
Hardy-Wemberg Equilibrium
3 modes of Natural Selection
Test 3
Homo Erectus (1M Years Ago)
Random change in genetic code
Died out 35,000 Years Ago
Evolution
5 major extiction
Each locus has a different mutation rate
Change in gene frequency from one generation to another
1. Rate of Reproduction
2. Resistance to Adverse Conditions
3. Defense Mechanisms
Cretaceus (65 M Years Ago):
Nearly all dinasaurs went extinct
95% Harmful
4% Neutral
1% Beneficial
Population Growth
Biology 311D Concept Map - RAA2446
Mutation and Genetic Drift