Daniel Kane wrote:I have estimates of roughly between 33 and 52 adult animals.
Is that a confidence interval? Not bad, I'd say...
Daniel Kane wrote:I have estimates of roughly between 33 and 52 adult animals.
Daniel Bohle wrote:the chance to find an animals is not the same over the year
its also depending on if you are looking for male, female, female reprodukitiv, subadult/juvenile.
Daniel Bohle wrote:so i can say I want 100 animals and calculate the timeperiod that big to get a pop size of 100 animals...
Daniel Bohle wrote:another point, if you found one specific animal you have a way bigger chance to find this again compared to the animals you found not.
Daniel Bohle wrote:im sure if you visit your area very often and you simply count what you see over the year and add the numbers you saw the year before and after,
you get a number that is closer to the truth than with the common estimations.
Daniel Bohle wrote:as long there is no rule about what type of land area you use to calculate the population densities?
Berislav Horvatic wrote:The monitoring patch has an area of 12.7 ha and is certainly of an "open" type.
Jeroen Speybroeck wrote:Bero, you can show us that you understand the principles behind CMR by adding a measure of deviance to each n°/ha.
Berislav Horvatic wrote:Jeroen Speybroeck wrote:Bero, you can show us that you understand the principles behind CMR by adding a measure of deviance to each n°/ha.
No, I can't.
I do not pretend to be either a biologist or a statistician, I just liked the joke and wanted to share it.
Also, it was not my work, so I can't (shouldn't) deal other people's unpublished results around. I just
wanted to help Daniel a little bit.
Jeroen Speybroeck wrote:Is that thesis not a public document? I don't see why you would think it's OK to cite population size estimates, but giving us their accompanying confidence/variance would be a violation of unpublished data...
Opportunistic random sampling with variable sampling effort is not the way you want to go. Unfortunately, a lot of people 'monitor' like that.
Daniel B., I don't understand all of what you wrote, ...
... but you can account for open populations (in time and space).
...Daniel Bohle wrote:so i can say I want 100 animals and calculate the timeperiod that big to get a pop size of 100 animals...
? ? ?
What's the math here? Please give us an example.
Why do you need habitat use assumptions? You just want to estimate population size for a given spot, right?
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