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55 Cards in this Set

  • Front
  • Back

Dynamic Equilibrium

It is always changing and adapting, trying to maintain equilibrium without upsetting the whole system

Community

A collection of populations

A community and its physical and chemical environment is called

ecosystem

Population

A group of organisms of the same species occupying the same space

Where is the ozone layer?

In the stratosphere

What layer of the atmosphere does life reside in?

Trophosphere

Albedo

The ability to reflect solar radiation

What is the Gaia Hypothesis?

All living things are connected and everything must remain in balance or the whole system will be upset (butterfly effect)

What makes up the biosphere?

Lithosphere, Hydrosphere, and atmosphere

What is the functional part of the biosphere?

The ecosystem

3 layers of the atmosphere

Trophosophere


Stratosphere


Mesosphere

Trophosphere

Where life occurs.

Stratosphere

Contains ozone layer

Mesosphere

Contains atmospheric gases and water vapour

What is ozone and where is it found?

A gas found in the stratosphere that protects us from UV rays

How does snows high albedo contribute to cold weather?

It wont absorb any of the radiation heat so it remains cold

What are the 5 kingdoms?

1. Plant.


2. Animal


3. Fungi


4. Monera


5. Protista

2nd law of thermodynamics

Energy will be lost during a transformation


What are the three pyramids of energy?

1. Pyramid of Numbers


2. Pyramid of Biomass


3. Pyramid of Energy

Biomagnification

When pesticides are eaten by 1 rat, then a snake eats 3 rats, then a mongoose eats 10 snakes so there is far more poison in the mongoose than there was in the rat

Pioneer Organism

Are the first organism to re inhabit a hard to live in region

Three Structural Zones of Earth

Lithosphere


Hydrosphere


Atmosphere

How are materials and potential energies moved through the ecosystem?

Through the trophic levels

Pyramid of Numbers

Based on the numbers of organisms at each trophic level

Pyramid of Biomass

Based on the dry mass of tissue




KG

Pyramid of Energy

Drawn on the basis of the energy produced at each trophic level




KJ

Whats it called where both organisms benefit from a relationship?

Mutualism

A relationship where one organism benefits and the other is neither harmed nor benefited

Commensalism

A relationship where one organism feeds on the dead tissue of another

Detrivitory

Primary succession

The first form of life where there is none

What is the edge effect

The most productive regions have a large diversity of plants which causes a large diversity of animals

What is substrate?

The soil conditions

Thin substrate=

Bare substrate

Climax forest

The final form of a forest

Note: The thicker the substrate the more productive

What is secondary succession?

If there is a minor disaster and the area has to regrow

What makes up climate?

Precipitation and temperature

What are the lake successions?

1. Oligotroph - deep, cold, unproductive


2. Mesotrophic - bottom begins to fill, warmer, shallower, more productive


3. Eutrophic - shallow, warm productive

Three aquatic communities?

1. Fresh


2. Salt


3. Brackish

Eurotrophication

The filling of a lake by organic matter and vegetation

What are the four zones of water?

Litoral- around the edge where it is shallow enough for growth


Limnetic- open area of a lake that goes down to where there is no light (vertical)


Profundal- Light cannot penetrate here (horizontal)


Benthos - the bottom

Winter stagnation

Lake is covered with ice so oxygen exchanged does not occur. Light cannot penetrate and photosynthesis ceases

COLD WATER FLOATS

Overturn

When the wind buffs the ice free lake and increases the amount of dissolved oxygen

Epilimnion

Upper layer; warm

Thermocline

Middle layer

Hypolimnion

Lower layer, can be high o2 or low o2

Five conditions that determine organisms survival in winter ecosystem

1. Snow


2. Cold


3. Radiation of heat


4. Wind


5. Energy (food)

Types of adaptations

1. Anatomical


2. Behavioral


3. Physiological



Chinophobe

Hates snow


Hibernates, produces glycerol


(Chino=chinook=associated with winter)

Chioneuphore

Can survive in snowy regions


Switch from grazing to browsing



Chionophiles

Really like snow


often cant survive in warmer regions

What adaptations can animals make to adapt to colder climates?

Insulating fur coat


Small extremities


Increased activity


Adipose tissue


Utilize insulation provided by environment (snow cover)


Larger


subnivean



Subnivean

Smallest mammals live under the snow



Pukak

Open space at base of snow