Unmarked question relating to 5 different sampling techniques to examine if these detection and occupancy is different for each sampling technique

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Andrew Greenawalt

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May 5, 2021, 7:39:21 AM5/5/21
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My name is Andrew Greenawalt. I am a graduate student at the University of Wisconsin-Stevens Point. I am relatively new to package unmark and a had a few data set up questions if you had time to help me. Me and another grad student are consulting with an undergraduate on the detection and occupancy of turkeys using 5 sampling techniques the first 4 are trail cameras (Snapshot Wisconsin which is faced in a cardinal direction and then 3 subsequent cameras to get a 360 degree view of all cardinal directions and the final sampling technique is an ARU (Audio recording device). What the undergraduate wants to know is the detection probability and occupancy of all sampling techniques and to compare all techniques to see if they are different.

Thank you for your time,

Andrew Greenawalt

Kery Marc

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May 5, 2021, 1:53:55 PM5/5/21
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Dear Andrew,

should be a very straightforward thing to do. Put your data into a format like this (site x method):

Site       Method1   Method2    Method3   Method4   Method5
1           0             1               0             1              0
2           1             0               1             1              1
3           0             0               0             0              0
... and so forth, with one line for each site

And then you define a factor that distinguishes occasions, which here stand for the 5 methods. The occasion-specific detection probability will be the p for each method.

Note that there is only a single occupancy, since this characterizes the true state, which is not affected by your method of observing it.

Best regards --- Marc
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greenaa080

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May 5, 2021, 2:09:13 PM5/5/21
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Hey Marc,

Thank you so much for your input. I was in the midst of doing that but I started thinking about it too much. 

Thanks,
Andrew



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