Unit 1.3 Misc. 1
An organism that is killed and eaten by another organism
Prey
Measure of salt levels
Salinity
Movement INTO a population (I - into)
Immigration
Non-living factors
Abiotic
Movement OUT of a population (E - exit)
Emigration
Too many organisms in one place for the resources available
Overpopulation
Living organisms. They have cells, reproduce, and process food for energy
Biotic
Measure of how acidic or basic water is. 7 - neutral
pH
Variety of living organisms in an ecosystem
Biodiversity
An organism that hunts and kills another, usually for food
Predator
Change in atmospheric conditions over time
Climate Change
Movement into or out of a population
Migration
Changes in seasons (Summer, Spring, Fall, Winter)
Seasonal Variations
Factors that restrict population growth
Limiting Factor
Mature, stable community with high biodiversity
Climax Community
Deep ocean that only receives 1% of light. Low biodiversity
Aphotic zone
Rebuilding of a community after a disturbance that left nothing but bare rock (no soil)
Primary Succession
Species not native to the ecosystem and causes problems for the native species
Invasive (Non-native) Species
The first species to come back and start rebuilding the community after a disturbance
Pioneer Species
The slow, gradual rebuilding of a community after a disturbance has occurred
Succession
Unlimited population growth due to the abundance of resources (“J” shaped curve)
Exponential Growth
Maximum number of individuals that can be supported in an ecosystem, based on the resources available
Carrying Capacity
Surface of the ocean with enough light to support life. 90% of organisms live here
Photic zone
Rebuilding of a community after a disturbance (NATURAL DISASTER) that left some soil
Secondary Succession
Population growth that is controlled by limited resources. Shows carrying capacity. (“S” shaped curve)
Logistic Growth