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Functions of Behaviour

Functions of Behaviour. Behaviour patterns are usually adaptive. They help the animal survive and/or reproduce. Examples of Behaviours based on function. Territorial Aggressive Submissive Reproductive Appetitive. Territorial Behaviour.

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Functions of Behaviour

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  1. Functions of Behaviour Behaviour patterns are usually adaptive. They help the animal survive and/or reproduce. • Examples of Behaviours based on function. • Territorial • Aggressive • Submissive • Reproductive • Appetitive

  2. Territorial Behaviour This is behaviour carried out in defence of a specific area which is used for the provision of food or breeding purposes. • Examples • A honeyeater chasing off other honeyeaters from an area that has many nectar-producing plants. • A group of magpies defending an area used for breeding from other magpies.

  3. Aggressive Behaviour Aggressive behaviour involves a physical act or threat by one individual against another. Some territorial behaviours are also aggressive behaviours. • Examples • A dominant male baboon chasing off a subordinate male that got too close to a female. • Kookaburras attacking a goanna that is approaching the nesting hollow (with chicks) of the kookaburras. • Magpies dive bombing during the breeding season.

  4. Submissive Behaviour These are behaviours designed to stop or reduce the intensity of the aggressive behaviour of another individual. • Examples • A young male dog rolling on its back in the presence of an older and stronger male dog. • A young male gorilla turning its face away from the stare of a silverback (male) gorilla.

  5. Reproductive Behaviour Reproductive behaviours are those that are carried out in the production and rearing of offspring. Reproductive behaviours can be classed into several types. • Examples • Courtship Behaviour, such as the display of colours and song shown by male lyre-birds to attract females. • Nest building, such as the preparation of a nest hollow for breeding by budgerigars. • Parental Care, such as the feeding and protection given to a newborn whale calf by its mother.

  6. Courtship Behaviour In Egrets

  7. Courtship Behaviour: Male Tern Feeding Female Tern.

  8. Courtship Display In A Male Chameleon

  9. Courtship Display In Zebra Doves

  10. Nest Building Behaviour In Paper Wasps

  11. Nesting Material Used By Red Eared Firetail

  12. Young Birds Requiring Significant Parental Care What’s for Tea????

  13. About time mum and dad showed up with the food. Looks like it’s insects again.

  14. Appetitive Behaviour An appetitive behaviour is one that leads indirectly to the satisfaction of a motivation (e.g. approach food in order to satisfy your hunger).

  15. Feeding Behaviour In Pelicans

  16. Social and Solitary Behaviours Social behaviours are those carried out by several individuals of the same species. Solitary behaviours are those carried out by a single individual.

  17. Advantages of living in a social group include: • Greater degree of protection from predators. • Increased care of offspring. • Greater ability to find food sources. • Increased ability to defend territories. • Better access to potential mates

  18. Disadvantages of living in a social group include: • 1. Increased competition for mates, food and nesting sites. • Increased risk of infection. • Greater risk of injury from other members in the group.

  19. Some Social Species Elephant herd led by an older dominant female (matriarch)

  20. Eastern Grey Kangaroos

  21. Swarm of Honey Bees

  22. Some Solitary Species Koala with young. Looking after dependent offspring doesn’t mean the species is social.

  23. Tigers are solitary

  24. Most cat species are solitary. One big cat is a social species.Which One????

  25. Ruby Tailed Wasp: A Solitary Species

  26. Methods of Communication 1. Visual Communication: Based on sight.

  27. Gorilla Stare: Have you got a problem?

  28. 2. Vocal Communication: Based on Sound Chest Beating

  29. Wolf Pack Calling

  30. Communication Behaviours Dolphins Use various sounds to communicate different information Use sounds for location and navigation Echolocationfor determining position

  31. 3. Chemical Communication: Based on Taste and Smell Many animals produce chemicals that affect the behaviour of other individuals of the same species. These substances are called pheromones Scent gland used to repel other male koalas. It may also function to attract females

  32. Vapourer Moths Female on left cannot fly. It uses pheromones to attract the male on the right.

  33. 4. Tactile Communication: Based on Touch

  34. Cyclic Patterns of Behaviour These are patterns of behaviour based on specific periods of time 1. Circadian Rhythms: Based on a daily cycle. Example: Sleeping

  35. 2. Circannual Rhythms: Based on a yearly cycle. Example: Migratory habits in many birds

  36. Red-necked Stint – An Australian Migratory Bird

  37. Lunar Rhythms: Based on the phases of the moon. • Example: The release of gametes from many species of coral is associated with the full moon of the lunar cycle.

  38. Tidal Rhythms: Based on the rise and fall of the tide. • Example: Feeding by crabs at low tide when food is plentiful. Soldier Crabs

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