Animal Behavior Flashcards
Ethology
The study of animal behavior
Stimuli
the initiate behavior and are detected by sensory receptors such as those for sight, touch, sound, temperature, and chemicals. the stimuli may originate from sources external to the organism or internal stimuli like hunger or thirst
Neural Integration
stimuli evaluated by the nervous system and then is determines a response. The response has evolved from natural selection and is usually favors the survival of the animal
Orientation Behaviors
coordinated movements that occur in response to an external stimulus. such as someone calling your name and they come walking to you. Walking is the coordinated response to the stimulant of your name being called.
response
a pattern of nerve impulses directed by the central nervous system and the sequence of muscle contractions that they initiate.
Taxis
When an animals moves towards or away from a stimulus
Kinesis
When an animals movement is completely random and does not result in directed movement with respect to the stimulus. Woodlice move faster or slower when the temperature is outside their preferred range
Brine Shrimp movement in response to color light
all move torwards the projected lights except the red light, didn’t move
planarian experiment : what was response in the light/dark
planarian moved faster in the dark
planarian experiment : response with caffeine
planarian moved faster in the dark with caffeine
what does it mean when my calculated T- value is greater than the critical T value from the table?
the two sets of data are significantly different
what does it mean when my calculated T- value is less than than the critical T value from the table?
two sets of data are not significantly different
Null Hypothesis
the hypothesis that there is no real difference between specified groups, and that any observed difference is therefore due to sampling or experimental error. If you can gather
evidence to reject the null hypothesis, then you are implicitly supporting an alternative hypothesis. - that there is in fact a difference between the two groups
Alternative Hypothesis
your actual scientific hypothesis that there is a real difference between two or more groups. Not testable directly by frequentist statistics.
P-value
a statistical measure obtained after specifying the null hypothesis and collecting observations. It indicates the probability of finding a difference between groups that is at least as pronounced as what you observed, assuming the null hypothesis is true. If the p-value is very small, then you have evidence to reject the null hypothesis.
