ANIMAL BEHAVIOR . Ch. 33. Ethology. The study of animal behavior. Behavior. An action or series of actions performed in response to a stimulus. http://www.kittens-lair.net/store/en/articles/img137.jpg. Stimulus. Something in the environment that causes an organism to respond.
The study of animal behavior.
An action or series of actions performed in response to a stimulus.
Something in the environment that causes an organism to respond.
Ex: sound, smell, color, another animal, prey, predator, mate
An organism’s reaction to a stimulus
Natural responses to stimuli that do not depend on learning
Baby cuckoo pushes competing egg out of host parents nest.
Common Cuckoo being raised
by Reed Warbler
The development of behaviors through experience.
Chimpanzees learn to use a stick to get termites out of a mound.
An animal develops a particular response to an object or organism only during a brief period early in life.
Food gathering behavior.
Specialists eat only one or a few things.
Generalists eat many kinds of food.
Seasonal movement between distant places.
To find better climate, food, mates, place to raise young.
Humpback whales migrate 5,100 miles between their feeding ground in Antarctica to their mating zones off Costa Rica.
Animal’s metabolic rate and body temperature drop. Animal becomes inactive for varying amounts of time.
Ex: bats, groundhogs, prairie dogs, ladybugs, box turtles, squirrels, bears
Visual signals are fast and easy to produce. Bright colors may scare off a competitor or predator.
Termites mark their trail with chemicals called pheromones.
Best over large distances.
May signal food or predators or to attract mates.
Animals have mating and parenting behaviors to maximize reproductive success.
1. Find and choose mate.
2. May use complex courting behavior or intense competition
3. Either abandon young or provide care.
Defending a portion of habitat against others of the same species.
Competition for food or mates.
Marking territory with scent, sound.
Aggressive displays or fights.
Behavior ritual that precedes and leads to mating.
Females prefer a particular trait in males.
That trait may affect the survival of the male.
Female chooses mate!
Protecting young and providing food
Mammals nurse young.
90% of birds give care.
Very few amphibians, reptiles, arachnids, insects