Transcript Competition in Animals

Competition in Animals
By: Jacy Bartnik
Competition
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Competition: common demand by two or more organisms for
environmental resources that are in short supply.
Plants: Light, water,
and nutrients
Animals: food, nesting,
shelters, mates
The battle for food!
Problem
Herbivores: compete
for a food source if
there are to many
herbivores and not
enough plants then
they will starve.
Carnivores: need to be
stronger faster then
there prey
Solution
Herbivores: specialize in
eating certain plants.
Carnivores: there prey is
likely to be weaker then
themselves or they hunt in
packs.
Type’s of Competition
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Intraspecific Competition:
This is the competition
between members of the
same species. It is affected
by population density. It
helps to regulate the
population.
Intrespecific Competition:
The competition between
members of different
species in ecosystems
increases when the
competing species have
common requirements. If
there is a presence of a
predator then it reduces
chance of intrespecific
competition.
Competition in Animals
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Territory: several mechanisms
by which animals control
access to critical resources.
The males will compete for
territories by fighting or
performing rituals as tests of
strength.
Aggression: is a form of animal
behavior that is an assault of
attack on another animal. In
interspecific aggression two
species show forms of
aggression towards each other.
Types of aggression
1)Predatory aggression
2)Defensive aggression
3)Aggression directed to
competitors for resources
Competition in Plants

In forest the taller trees
receive more sun. The smaller
ones are shaded from the
taller trees therefore will never
grow as tall. When a tree
germinates in the spring it may
not survive because the taller
trees shade them.
To avoid competition between
the plants offspring they use
animals, wind, and other ways
to distribute their seeds.
Competition In Saskatchewan
Red Wing Blackbird Agelaius phoeniceus
Yellow headed Blackbird Xanthocephalus xanthocephalus
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They both share nesting habitats.
There is a Larger population of Red Wing Blackbirds which leads to low
food sources.
White Tailed Deer Odocoileus virginianus
Elk Cervus canadensis
 They both generally eat the same plants therefore causing one of the
species to starve or be forced out of the area.