Chapter 5 Flashcards
Define Biotic
Living
Define Abiotic
Non-Living
Define Landscape Ecology
Examine connections between ecosystems found in a particular region
ex) forest and pond
Define BioSphere
Living Organisms
Define Atmosphere
Gaseous Envelope surrounding the earth
Define Hydrosphere
Supply of water
Define Lithosphere
Soil and rock, crust
Define energy
ability to do work
Define Potential Energy
Stored energy
Kinetic Energy
energy in motion
Define Thermodynamics
Study of energy and its transformations
First Law of ThermoDynamics
Energy is converted from one organism to another
Examples of ThermoDynamics
Photosynthesis
Cellular Respiration
Second Law of ThermoDynamics
Energy decreases over time
Define Entropy
Measure of disorder or randomness
Define Producers
Make own food (plants)
Define Consumer
consume other organisms
Types of consumers: Primary
Herbivores
Types of consumers: Secondary
Omnivores
Types of consumers: Tertiary
Omnivores/Carnivores
Types of consumers: Detritus Fedders
Consume organic matter (Carcasses/Feces)
Define Decomposers
Breakdown dead organisms and waster products
Define Trophic Level
Each level of the food chain
Trophic Levels
- Producers
- Primary
- Secondary
- Tertiary
Define Food Web
A complex food chain
Ecological Pyramids
Show energy flow through trophic levels
What was the original source of energy?
Sun
Net Primary Productivity (NPP)
The amount of biomass found in excess of that broken down by plants cellular respiration
Carbon Cycle
Released through combustion
Photosynthesis/Cellular Respiration
Fossil Fuels
Hydrogen Cycle
- Evaporation
- Runoff
- Watershed (Fertilizer)
Nitrogen Cycle
DNA
Rhizobium: Convert it into nitrate
78% in air
Sulfur Cycle
Found in rocks
Acid Rain
Phosphorus Cycle
Not in Atmosphere
Erosion
Define Fundamental Niches
Idealized niche affected by competition
Define Realized Niche
Actual Niche
Define Resource Rationing
Reduction in comp. for resources to avoid overlapping niches
Define Symbiosis
Species living with each other
Define Mutualism
Both Organisms benefit
Define Commensalism
One species benefits and the other is unharmed
Define Parasitism
One species benefits and the other is hurt
Define Predator-prey Interaction
Adapting ot one another
Competition: Intraspecific
Within the population
Competition: Interspecific
Between different species
Define Keystone Species
Crucial to maintenance of their ecosystem