Topic 1

all the members of a species that live in a specific area

all of the organisms that live in a particular area

All the communities in a particular geographical area; introduces abiotic factors

Temperature, weather, altitude, water, and light

Ways organisms affect one another

Place or type of environment with conditions suitabl.e for the survival of that population.

Population/organisms complete role in an ecosystem. Where it lives and what it does.

1, Producer
2, Consumer
3, Decomposer

Large geographical region
Specific temperature/climate
Animals and Plants that adapt
Contain several ecosystems

-Coniferous trees
-Acidic soil due to pine needles
-Cold and gloomy
-Changable weather

-Increased sunlight and warmer temperatures
-Rich fertile soil
-No trees
-Low precipitation

-Cold temperatures
-Short growing season
-Permafrost in soil
-Low precipitation

-Most biodiversity
-Increased sunlight and warmer temperatures
-Rich fertile soil
-Lots of precipitation

-Rooted plants underwater

-Photoautotrophs
-Algae & plankton
-Where light penetrates water

-Where light does not penetrate
-Low 02
-No photosynthesis
-High Cell Respiration

1. Birth potential
2. Capacity for survival
3. Breeding frequency
4. Length of reproductive life

-Short supply of resources
-temperature, light, water (abiotic)
-food, disease, predators (biotic)

-J curve
-Drops steep
-growth pattern showing the population that doubles with each generation

-S curve & Carrying capacity
-Teases the carrying capacity line

Maximum # of individuals of a species that can be supported by an ecosystem

Nutrient in least supply is the one that limits growth

An organism can survice within a particular range of an abiotic factor, anything above or below that range the organism cannot survive. Wider the range of tolerance, greater ability of organism to survive

Factor in an ecosystem that affects members of a population regardless of population density. Typically abiotic components

Factor in an ecosystem that affects members of a population because of population density. Typically biotic components.

1. Soil
2. Available Water
3. Temperature
4. Sunlight

1. Litter
2. Topsoil (Contain spaces for water and o2, allowing denitrification)
3. Subsoil (contains many minerals, allows percloration and leaching)
4. Bedrock (Final layer of rock underneath soil)

Boundary between the area of saturation and the unsaturated soil

1, Chemical Environment
2. Temperature and Sunlight
3. Water Pressure
4. Seasonal Variations

Water goes abose 4 degrees
O2 does not move and wont dissolve in warm temperatures
Lowest part has O2 reserves

Epilimnion
Thermocline
Hypolimnion

Surface H2O cools
Layers from summer mix
Renews O2 levels

Ice allows sunlight through
Decreased photosynthesis means low dissolved O2
Fully frozen lakes eliminate almost all life

Increase in O2 Dissolves into H2O
Water becomes denser
O2 is carried by the water

-Quality and Amount of Soil
-Changes in Temperature
-Amount of Sunlight
-Abiotic Factors
-Chemical Environment
-Solubility of O2
-Depth of Water
-Density (Below 4 degrees becomes low density)