Lecture Exam #4 Ch. 51 Flashcards
what do fiddler crabs feed and wave with?
feed with their small claw and wave their large claw
why do male fiddler crabs engage in claw waving?
it’s used to repel other males and to attract females
an action carried out by the muscles under control of the nervous system
behavior
what is behavior subject to?
natural selection
what does discrete sensory inputs stimulate?
both simple and complex behaviors
what did Niko Tinbergen identify the four questions that should be asked about animal behavior were?
1) what stimulus elicits the behavior, and what physiological mechanisms mediate the response?
2) how does the animal’s experience during growth and development influence the response?
3) how does the behavior ay?nd survival and reproduction?
4) what is the behavior’s evolutionary histor
the study of the ecological and evolutionary basis for the animal behavior
behavioral ecology
what does behavioral ecology integrate?
proximate and ultimate explanations for animal behavior
what does proximate causation address?
“how” a behavior occurs or is modified, including Tinbergen’s questions 1 and 2
what does ultimate causation address?
“why” a behavior occurs in the context of natural selection, including Tinbergen’s questions 3 and 4
a sequence of unlearned acts directly linked to a simple stimulus
fixed action patterns
what are fixed actions patterns and what happens once initiated?
unchageable and once initiated usually carried to completion
an external cue that was triggered by a fixed action pattern
sign stimulus
in male stickleback fish, what is the stimulus for attack behavior?
the red underside of an intruder
when presented with unrealistic models what happens to the attack behavior?
it occurs as long as some red is present
what can environmental cue trigger?
a movement in a particular direction
a regular, long-distance change in location
migration
how do animals orient themselves? (3) (PPE)
1) the position of the sun and their circadian clock, an internal 24-hour clock that is an integral part of their nervous system
2) the position of the north star
3) earth’s magnetic field
what is some animal’s behavior affected by?
the animal’s circadian rhythm, a daily cycle of rest and activity
what are behaviors such as migration and reproduction linked to?
changing seasons, or a circannual (yearly) rhythm
what are common seasonal cues in behavioral rhythms?
daylight and darkness
what are some behaviors linked to and what does it affect?
lunar cycles, which affects tidal movements
in behavioral ecology, a behavior that causes a change in another animal’s behavior
signal
the transmission and reception of s ignals
communication