Chapter 1.3 Ecology and Environmental Studies Flashcards
Definition of Ecology and Ecosystem
Study about the relationship between living things & environment including physical and biological environment.
Relationship of ecosystem with human
Human is affected by:
- climate and biological environment
- bio factors
- Culture and traditions
- infrastructure
- physical factors
Environmental factors
Controller of organism in specific environment
- climate
- topography
- human
- soil
- vegetation
Important terms
Species, population, biotic community, ecosystem, biome, biosphere
Ecosystem
The unit of land that compose the society of living things and environment that has the duty together
Types of Ecosystem
Aquatic
Terrestrial
Aquatic Ecosystem
Marine, Brackish, Fresh water
Terrestrial Ecosystem
Forest, Agriculture, Grass land, urban, others
Ecotone
The ecosystem between land and aquatic ecosystem, that has abundance number of edge species
The Structure of Ecosystem
Abiotic
Biotic
Abiotic Structure
The activator or stimulator
Biotic
The doer, doing activities
Producers
Consumer 1, 2, …
Decomposer
The food chain in ecosystem
Producer > Consumer 1 > consumer 2 > Decomposer > Producer&supporter, Supporter > producers
Supporter : climate, rainfall, humidity
Tropic Structure
Piramid
The cycling of Matters in Ecosystem
Biosphere: N,P, C
Advantage: prevent the accumulation of waste, ecosystem won’t run out essential elements.
Energy Flow in Ecosystem
Using Thermodynamics Law 1 & 2
The Law of Thermodynamics 1
Energy can’t be destroyed and can’t be made.
The Law of Thermodynamics 2
The process of transferring energy will be followed by the lose of energy
Sir Eltonion Pyramid
Piramida tegak: sustainable
Piramida terbalik: Unsustainable
Sustainability of Ecosystem
- Consider from balance of nutrition cycling
input > system > output , input = output
- Consider from structure of energy flow
(piramid tegak)
Balancing Ecosystem
Self maintenance + Self regulation = Homeostasis
