Download species interactions mini

Competition – two species share a requirement for a
limited resource  reduces fitness of one or both species
Predation – one species feeds on another  enhances
fitness of predator but reduces fitness of prey
herbivory is a form of
predation
Symbiosis – two species live together  can include
parasitism, mutualism, and commensalism
Parasitism – one species feeds on another  enhances
fitness of parasite but reduces fitness of host
Mutualism – two species provide resources or services
to each other  enhances fitness of both species
Commensalism – one species receives a benefit from
another species  enhances fitness of one species; no
effect on fitness of the other species
Biotic
Abiotic
Living part
of the
environment
Nonliving
part,
water, soil,
light, etc.
Sun provides
Ecology – the study of the interactions b/tw
organisms & their environment 2 Parts – Biotic and
Abiotic
Prey
biosphere
Herbivore – A
consumer that eats
plants Ex – prarie
dog
Carnivore – A
consumer that ears
animals.
Omnivore – a
consumer that eats
a variety of
organisms
Scavenger – an
animal that feeds
on the bodies of
dead animals
energy for
living things
Organisms
and their
nonliving
environment
Part of
Earth
where
life
exists
An organism that eats
another organism
An organism that is eaten
by another organism
Symbiosis
ecosystems
A close, long term
relationship between 2 or
more species
Mutualism
communities
All the pops
of different
species
Same
species
Predator
populations
Both species benefit. (a
type of symbiosis)
Commensalism
One species benefits and one is not
affected
Individual
organisms
producers
Niche
consumers
herbivores carnivores
Producer
Organism that uses sunlight
To make food (direct)
Parasitism
One species benefits and one is
harmed
The environment where
an organism lives
Habitat
consumer
Organisms that eat producers or
other organisms (see list on the
left)
An organism’s way of
life (its job)
decomposer
Bacteria and Fungi that
breakdown the remains of dead
animals