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Ecology101

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by

Kiel Lorrence Garcia

on 18 August 2013

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Transcript of Ecology101

ECOLOGY
The study of interactions of organisms with their environment.
Concept of ecology was first voiced by German zoologist
Ernst Haeckel.
BIOSPHERE
A portion of Earth where life exist.
ECOSYSTEM
An ecosystem is a community of living organisms (plants, animals and microbes) in interacting with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.
BIOTIC FACTORS
The living component of an ecosystem.
ABIOTIC FACTORS
The nonliving component of an ecosystem.
COMMUNITY
A population of different species interacting with one another.
POPULATION
Consists of one particular species that live in a particular area.
CHARACTERISTIC OF A BIOSPHERE
'Biosphere' was coined by a Vladimir Vernadsky.
Eco-logos, 'Home' 'study';
(Study of home)
Biodiversity
is the measure of variety of living organisms that inhabit an environment.
Habitat
An area where every species lives. It has biotic and abiotic component which provides shelter, water and basic needs for survival.
ORGANISM
Living things that exhibit the characteristic of life.
Temperature
Water and Oxygen
Wind
Fire
Soil
ECOLOGY 101
Characteristic of Living Organisms
Growth and Development
Reproduction
Homeostasis
Adaptation
Respond to Stimulus
Organization (Made up of Cells)
Metabolism
Prokaryotes
Eukaryotes
Animal Cells
Plant Cells
Bacteria
Autotrophs
Heterotrophs
'auto-trophe,' self-nourishment
Chemotrophs
Phototrophs
Uses light as an energy source.
Utilizes chemicals as a source of energy.
An organism that cannot synthesize its own food and is dependent on biochemical substances for nutrition taken from other organisms.
'other-feeders'
Trophic levels
Trophic level, is the position that an organism occupies in a food chain: what an organism eats, and what eats the organism.
Major types of Cells
Species
Groups of organisms that are physically and genetically related.
Population
individual of the same species found in a given area.
Limiting factors
Abiotic factors affect the success of populations.
Range of tolerance
The ability of organism to tolerate change in the environment.
Tolerance limits
The range of an abiotic factor results in the largest of population of a species.
Optimum Range
Indicator Species
Producers
Consumers
Carnivores
Herbivores
Detrivores
Omnivores
Food chain
Food web
Pyramid of energy flow
Animal population
Exponential growth
occurs when the rate of population growth in each new generation is multiplied.
a.Birth rate,
b.Immigration
c.Death
d.Emigration

Growth Rate
Limits of Population
Carrying Capacity
Disease
Competition
Predation
Environmental factors
Full transcript