| Term | Definition |
| Population Ecology | Study of the ecosystem |
| Name the three ways organisms respond to environmental change: | 1. Physiology-
2. Morphology
3. Behavior |
| Physiology | The changes that occur inside their body |
| Morphology | The changes that occur outside the body |
| Behavior | Changes in behavior due to the envirement (hibernation) |
| Population dynamics Two types | 1. Immigration
2. Emigration |
| Population Dynamics Immigration | Will add to population (birth) |
| Population Dynamics Emigration | Will take way from population (death) |
| Two characters associated in population | density and dispersion |
| Associated in population: density | the number of individuals per unit of area or volume |
| Two types of density associated in population | 1. indirect way: counting by nests or burrows
2. Mark: Recapture method: (See notes) |
| Dispersion associated with population three types | 1. Clumped distribution
2. Uniform distribution
3. Random distribution |
| Clumped | individuals of a species together with limited space between eachother
Reason: attraction food and attraction to one another |
| Uniform | Individuals of species evenly spread:
Reason Repulsion |
| Randomly | It is neither clumped or uniformed
No attraction or repulsion |
| Survivorship curve | Measures mortality rate of different species |
| Survivorship curve Type 1 | Low death rates during early and middle life than increase among older age groups (humans) |
| Survivorship curve Type 2 | the death rate is constant over the organisms life span
(squirrels ) |
| Survivorship curve Type 3 | high death rates for young then a slower death rate for survivors (sea turtles) |
| Reproductive rate | at certain age a single organism has a high reproductive rate |
| Big bang reproductive: Semelparity | is a one time reproduction (black widow) |
| Repeated reproduction : iteropartiy | is a repeated reproduction |
| Carrying capacity | The maximum level a population can reach before it declines |
| Exponential growth | the population expands greatly due to the amount of space and food |
| K-Selected population: Carrying capacity | 1. Will not reproduce alot throughout lifespan
2. Longer lifespan
3. Longer parental care
4. low death rate |
| R-Selected population: Reproduction | 1. will reproduce alot throughout lifespan
2. short life span
3. no parental care
4. high death rate |
