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Biology 101 Ch. 50 - Intro to Ecology
Professor Abu's Class
25
Biology
Undergraduate 1
12/02/2012

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Cards

Term
What is the Primary goal of Ecology?
Definition
understand the Distribution and Abundance of Organisms
Term
What are the two primary physical structures that limit D+A?
Definition

Aquatic organisms: Water Depth

Terrestrial Organisms: Climate

Term
What are the four types of Ecology?
Definition
Organism, Population, Community, and Ecosystem
Term
Describe The lowest level of Ecology
Definition

Organismal Ecology

Exploring Morphological, Physiological, and Behavioral adjustments to survive in an area

Term

Describe the second level of Ecology

 

Example?

Definition

Population Ecology

Undertanding how the population size changes over time

-Breeding

Term

Describe the Third level of Ecology

What are three examples?

Definition

Community Ecology

Understanding how species interact with each other and the consequences of those interactions

1. Predation

2. Parasitism

3. Competition

Term
Describe Ecosystem Ecology
Definition

Includes abiotic factors

Understanding how energy and nutrients are passed from organism to organism

Term
Why are Salmon good to study for ecology?
Definition

they live in fresh and salt water

they are sensitive to changes in the water.

Term
What are the three physical factors that affect Aquatic D+A?
Definition

1. Water Depth

2. Water Flow

3. Nutrient Availability

Term

Explain Nutrient Availability

What two events affect it?

Definition

Limits growth rates of Photosynthetic plants

1. Water Upwelling

2. Lake Turnover

Term
Describe Water Flow
Definition
Movement and strength of water affects how organisms interact
Term
Describe Water Depth
Definition

Light is scattered

affects productivity

-amount of Carbon Fixation per year by photosynthesis

Term

Describe a Biome

how is it defined?

Definition

Major groups of plant and animal communities

defined by vegetation

Term
What is the difference between climate and weather?
Definition

Climate is a long term description

Weather is a short term description

Term
Describe Weather
Definition

Short-term atmospheric conditions of temperature, moisture, sunlight, and wind

S.T.W.M.

Term
What does wind affect?
Definition
Temperature and moisture
Term

What two conditions of weather are the most important

why?

Definition

Temperature and Moisture

determines plant D+A

Term

How does the nature of a Biome develop?

2 things

Definition

1. Avg. Temperature and Precipitation

2. Annual variation in temperature and Precipitation

Term
Describe Net Primary Productivity
Definition

Total amount of Carbon fixed

minus Cellular Respiration

Term
Describe the aboveground Biomass
Definition
Mass of plants excluding their roots
Term

Describe a Hadley Cell

What type of air makes regions more wet than other regions?

Definition

Major cycles in global air circulation

Rising air

Term
Describe Adiabatic Cooling
Definition

air goes up, temp and density is lowered

air goes toward equater, density and temp rise

Term
Why does the earth have seasons?
Definition
because the earth is tilted 23.5o
Term

What affects regional climate the most?

why?

Definition

mountain ranges

causes rain shadows by causing rainfall prematurely

Term
Describe Oceans' affect on regional climate
Definition

absorbs heat in summer

releases heat in winter

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