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Ecology for Test 1

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by

Kimberly DeVivo

on 2 May 2016

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Transcript of Ecology for Test 1

What is Ecology?
The study of how organisms interact with the environment (living/nonliving)
Nonliving
Examples:
Light
soil
Temperature
Minerals
All ABOTIC factors are important features of an ecosystem that living organisms depend upon.
Environmental Organization
Biosphere, Biomes, Ecosystem, Community, Population,
What are Abiotic Factors?
Population of flowers
Here is a population of bees
What is a POPULATION?
All individuals of a particular species within a certain area
COMMUNITY
What is a community?
Marine Community
SOIL
AIR
WATER
SUN
CLOUD
HAWK
DEER
BLUE BIRD
FOX
LADY BUG
GRASS HOPPER
GRASS
TREE
Apples
Mouse
Day one Ecology
What is an Ecosystem?
HINT: Everything you see is part of the Ecosystem
1.Community + Abiotic Factors
Biodiversity - presence of a wide range of different species interacting with each other & environment
2. Self-Sustaining
Organisms that can use energy to make organic compounds (food)
Ex. Green Plants convert solar energy to chemical energy via photosynthesis
3. Recycling of Materials between organisms & the environment (Water, Nitrogen, Oxygen & CO2)
4. Must have a source of ENERGY (SUN)
Species
or
Individual organism
Food chain: shows how energy flows from one organism to the next
Groups of different plants and animals in a certain area (*NO ABIOTIC FACTORS*)
Communities are:
Food Webs: shows the many possible pathways energy can flow
ENERGY FLOW SHOWN
BY ARROW
Biotic factors: All LIVING THINGS that have the 7 Characteristics of life.
M.R.S. N.E.R.G.


M- MOVEMENT

R- REPRODUCTION

S- SENSITIVITY

N- NUTRITION

E- EXCRETION

R- RESPIRATION

G- GROWTH
Fly
Abiotic or Biotic?
1
2
3
4
5
6
7
8
9
10
Ecosystem
What are the 7 things that make something alive?
What are some things that could Limit this community?
What is an Ecosystem?
What are Limiting Factors?
Limiting Factors: limits the types of plants & animals that can exist in an area
Examples:
1. Temperature (latitude)
2. Amount of dissolved O2 in aquatic
environments
3. Amount of Food Available
How will these factors affect the different populations in a community?
Carrying Capacity - Maximum # of organisms that can be supported by the environment
What are the arrows showing?
Why can this be an
?
Full transcript