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Types of Ethograms ©Dr. Mitchel Goodkin, 2008
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We need to define Ethogram… ©Dr. Mitchel Goodkin, 2008
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WRITE An Ethogram is a list of behaviors ©Dr. Mitchel Goodkin, 2008
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That being said, there are 3 methods of Ethogram data collection that we will discuss:
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Instantaneous Sampling
WRITE Method 1: Continuous Sampling Method 2: Instantaneous Sampling Method 3: Zonal Sampling ©Dr. Mitchel Goodkin, 2008
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Continuous Sampling Either a focal animal or a group of animals may be observed. The observer selects a duration for the entire observation. The observer chooses which behavior(s) to record. ©Dr. Mitchel Goodkin, 2008
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Continuous Sampling The data is recorded non-stop for the entire duration of the observation. The data may be recorded as frequency of occurrence or as a duration. ©Dr. Mitchel Goodkin, 2008
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Continuous Sampling WRITE For frequency a tally chart should be used and the behavior is checked as a tally mark as it is performed. ©Dr. Mitchel Goodkin, 2008
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Continuous Sampling Example of a frequency based continuous sampling for a tribe of baboons; (the entire tribe observed) Autogrooming Allogrooming Eating Sitting 0:00-1:00 I IIII II IIII IIII III IIII IIII IIII IIII III 1:01-2:00 IIII IIII IIII IIII IIII IIII I IIII IIII IIII IIII IIII II ©Dr. Mitchel Goodkin, 2008
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WRITE Continuous Sampling For duration a stop watch must be used and the watch is started or stopped according to what the observed behavior is. ©Dr. Mitchel Goodkin, 2008
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Continuous Sampling Example of a duration based continuous sampling for a single baboon; (a focal animal was identified) Eating Not Eating 10:00 am-11:59 am 10/2108 70m 20s 48 m 40s 12:00 pm-1:59 pm 18m 45s 100m 15s
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Instantaneous Sampling
A focal animal is used. The observer selects an appropriate time interval for the observations. The observer uses a stopwatch and records what the animal is doing ONLY at the predetermined time interval. WRITE ©Dr. Mitchel Goodkin, 2008
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Instantaneous Sampling
The observer has created an extensive list of possible behaviors, which are explained in detail before the observations begin. ©Dr. Mitchel Goodkin, 2008
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Instantaneous Sampling
Example of an instantaneous sampling data table. 0:00:15 Autogrooming 0:00:30 0:00:45 Drinking water 0:01:00 Alert resting 0:01:15 0:01:30 Sniffing 0:01:45 Relaxed resting 0:02:00
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Zonal Sampling Either a focal animal is used or a group of animals.
The observer sketches a diagram of the cage, tank or enclosure. The observer then divides the sketch into distinct zones. ©Dr. Mitchel Goodkin, 2008
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Zonal Sampling The observer then selects an appropriate time interval for the observations. The observer uses a stopwatch and records either how many animals are in each zone or which zone the focal animal is in ONLY at the predetermined time interval. WRITE ©Dr. Mitchel Goodkin, 2008
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The Zone # that the Goldfish with the Bright Orange Fin is In
Zonal Sampling Example of a zonal sampling data table. The Zone # that the Goldfish with the Bright Orange Fin is In 0:00:15 1 0:00:30 6 0:00:45 0:01:00 0:01:15 0:01:30 3 0:01:45 2
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QUESTIONS ?
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