Types of Coloration
What is Aposematism?
A way of showing danger with bright colors, appearing to be poisonous
How can animals camouflage?
With their pigments and physical struchtures.
When an animal's appearance resembles something else in the enviroment such as a plant or a rock.
A. Mimicry
B. Disguise
C. Countershading
Disguise
What is Mimicry?
When one species resembles another species that has prominent flashy features.
How can animals use aggression to fight off prey?
In short: To increase dominance
How is the coloration of an animal determined?
Melanin is the primary pigment that determines the color of a mammal's skin, fur, and eyes
Name the three types of Mimicry
Batesian Mimicry, Wasmannian Mimicry, and Müllerian Mimicry
What is camoflauge?
Type of coloration of pattern that helps an animal blend in with its surroundings.
How dose coloration help animals survive?
This allows prey to avoid predators, and for predators to sneak up on prey.
What is Batesian Mimicry? Give an example
Batesian Mimicry is when an organism copies another one who is dangerous.
EX: Hoverfly does not sting but paper wasp does, so hoverflys appear to be dangerous.
What is countershading? Give an example.
Countershading is when the animal's back (dorsal slide) is dark while its underside (ventral side) is light.
EX: Honey Badger
How does animal coloration happen?
Evolution
Insects look like the leaves they live on, a type of camoflauge.
EX: several beetles look like ants, ants give them food shelter protection because they can't tell beetles from their own species.
What is Protean Display?
Definiton: Behavior which is sufficiently unsystematic to prevent a reactor predicting in detail the position or actions of the actor.
Which animal among the following shows disruptive coloration as an evolutionary fitness?
Mandrill
Amur Tiger
Day Octopus
Indian Peacock
Amur tiger