Download EcologySlideshow

Ecology & Conservation
A guide to Chapter 26
Living Things and Their
Environment
Environment: All living and nonliving
things with which an organism may
interact.
 All of the living and nonliving things in
an environment are interconnected.

Ecosystems

Ecosystems: All the
living and nonliving
things in a given
area that interact
with one another
Community

The living part of
the ecosystem.
Population

A group of
organisms of
the same type,
or species,
living together
in the same
area.
Habitats

The place where an
organism lives. It
should provide food,
shelter and all other
resources an
organism needs to
survive.
Energy Roles



Producers
Consumers
Decomposers
Producers

The source of all the
food in an
ecosystem. Any
organism that goes
through
photosynthesis.
Consumers
 An
organism
that feeds
directly or
indirectly on
producers.
Decomposers
Break
down
dead
organisms
into simpler
substances.
Food
Chains

A series of events in
which food and
energy are
transferred from one
organism in an
ecosystem to
another. The first
link is always a
producer.
Food Web

Many
overlap
ping
Food
Chains
Competition

When there are
not enough
resources to go
around,
organisms must
struggle with
one another to
get what they
need to survive.
Predation



When one organism
hunts another.
Predator: The
organisms that hunt.
Prey: The organism
that is eaten by the
predator.
Predation



When one organism
hunts another.
Predator: The
organisms that hunt.
Prey: The organism
that is eaten by the
predator.
Symbiosis

A close
relationship
between two
organisms in
which one
organism lives
near, on or
inside of another
organism. One
will benefit.
Types of Symbiosis



Commensalism
Mutualism
Parasitism
Adaptation





A change that increases an organism’s
chance of survival.
Types:
Adapting to predators
Adapting to competition.
Adapting to symbiosis
Ecology Games
Oh Deer!: Habitat, limiting factors,
competition, population
 Quick Frozen Critters: Predator, prey,
adaptations, limiting factors,competition,
population.
 Muskox Maneuvers: Adaptations,
predator, prey, limiting factors,
populations
 Deadly Links: food chains, pesticides.
