This document defines key ecological terms and describes different habitats. It explains that a community is made up of living organisms in a habitat. An ecosystem is a community interacting with its physical surroundings. A habitat provides conditions for an organism's development and is defined by physical and biotic factors. Examples of habitats described include deserts, rainforests, tundra, prairies, savannahs, forests, and marine and zoo environments. Niche refers to an organism's role and interactions within its habitat and ecosystem.
3. COMMUNITY
A community is all the living
organisms in a habitat.
Plant communities that have
many layers of vegetation can
support more species of birds
than a plant community that has a
simpler structure.
4. ECOSYSTEM
The system formed by a
community of living
organisms interacting with
one another and their
physical surroundings is an
ecosystem.
Community + physical
surroundings = ecosystem
5. ENVIROMENT
The sum total of all surroundings of a living
organism, including natural forces and other living
things, which provide conditions for development
and growth as well as of danger and damage.
Environment is the biotic and abiotic surrounding of
an organism or population, and includes particularly
the factors that have an influence in their survival,
development and evolution.
6. HABITAT
A habitat is an ecological or
environmental area that is
inhabited by a particular species
of animal, plant, or other type
of organism.It is the natural
environment in which an
organism lives, or the physical
environment that surrounds a
species population.
7. CONT…
A habitat is made up of physical factors such as
soil, moisture, range of temperature, and availability
of light as well as biotic factors such as the
availability of food and the presence of predators. A
habitat is not necessarily a geographic area—for a
parasitic organism it is the body of its host or even a
cell within the host's body
8. Which habitats do you
recognize?
Desert
Grassland
Rain
Forest
Forest
Tundra
Prairie
Marine
Zoo
9. Desert
Super-dry air
Little rain – less than 10 inches a
year
High daytime temperatures
Lots of wind
Typical animals include insects,
reptiles, birds, and various
mammals
10. Rain Forest
The Rain Forest is made of 3 layers
The first layer is the canopy
The second layer is the understory
The third is the forest floor
The Rain Forest contains about 45%
of all animal species
11. Tundra
Extremely short growing seasons
(6 to 10 weeks)
Long, cold, dark winters (6 to 10
months)
Low Precipitation
Snow provides insulation
Wildlife includes birds, reindeer,
foxes, bears, seals, and walruses
12. Prairie
Temperatures vary summer to
winter
Moderate rain fall
Seasonal drought and occasional
fires
Typical animal life includes jack
rabbits, deer, foxes, coyotes, birds,
and many other species
13. Savannah
Warm, hot climates
Major vegetation is grass
Dry and rainy seasons
Seasonal fires help maintain
balance
The Savannah is home to various
reptiles, rodents, birds, and large
mammals such as elephants, and
zebras
14. Forest
Covers 1/3 of the Earth’s area
Dominated by trees and woody
vegetation
Precipitation is distributed evenly
throughout the year
Animal life includes many things
such as bears, deer,and rodents
15. Marine
Water covers nearly 75% of the
Earth’s surface
There are numerous species of
plans and animals who live here.
These range in size from
microscopic organisms to the size
of a 100 ft whale.
16. Zoo
A place where people keep and
display animals
A man made habitat
Zoos are important for 3 major
reasons
Recreation and education
Wild life conservation
Scientific studies
17. NICHE
The niche of a species is that
part of the environment in
which the species survives,
reproduces and is likely to
persist.
18. Abiotic factors
The physical environmental
factors that affect the
survival of organisms in
fresh water include light,
temperature, dissolved gases
and nutrients.
19. Protect the wonderful world around
you!
Remember each habitat is a unique
place where plants and animals make
their home.
What makes your habitat unique?