Chapter 32 - Animal Behaviour Flashcards
What is a behaviour?
A response from the nervous system, reacting to stimulus
What system carries out the nervous system’s response to stimulus?
The muscular or hormonal systems
What are some things behaviour can help an animal with?
Obtaining food
Finding a sex partner
Maintaining homeostasis
What is behaviour influenced by?
Natural selection
Define: Ethology
The study of animal behavior, mainly in natural environments
Define: Behavioral ecology
The study of the ecologiacl and evolutionary basis for animal behavior
What two things does proximate causation focus on?
What is the environmental simuli triggering a behaviour
What genetic, physiological, and anatomical mechanisms behind a behaviour
What does ultimate causation focus on?
The evolutionary significance of a behaviour
Define: Fixed action pattern
A series of unchangeable behaviours that are unlearned and innate
What happens once fixed action plans are initiated?
They are carried to completion
What causes the innitiation of a fixed action pattern?
An external cue known as a sign stimulus
What is migration?
A regular long distance location change
What three ways can animals orient themselves?
Position of sun and their circadian clock
The position of the North Star
Earth’s magnetic field
Define: Circadian clock
An internal 24 hour clock in animals that is an integral part of their nervous system
What are behaviours such as migration and reproduction linked to?
Changing seasons or a circannual rhythm