Download Species and Speciation

SPECIES AND
SPECIATION
What is a species?
Morphological Species Concept
 Phylogenetic Species Concept
 Biological Species Concept

Morphological Species Concept

Use physical similarities to classify
species
Phylogenetic Species Concept

Use shared, unique genetic history to
classify species
Biological Species Concept

Use ability to mate and produce
offspring that can also mate and
reproduce to classify species
How do species form?


When a group of individuals remains
isolated from the rest of its species
long enough to evolve different traits
How can some members of a species
become separated from the main group?
Geographical Isolation

Physical barrier
Temporal Isolation

Reproduce at different times
Habitat/Spatial Isolation

Occupy different habitats in the same area
Behavioral Isolation

Different courtship displays
Resource Isolation

Use different resources in the same area
Mechanical Isolation

Physically incompatible
Activity
Draw a diagram of your method of
speciation
 Write a description of what is
happening
