Proper technique for estimating prairie dog populations ?

[Hammer]

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What is the proper technique for estimating prairie dog populations ?


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[EFBell]

Count your kills and figure you did not get them all?

[pdog06]

Yeah, Id say count your kills from one dogtown and then ATLEAST multiply that number by 10 to get close to the population of that town.

I'll try my best to get a count next weekend ;D

[Hammer]

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When you do get an accurate prairie dog count for that town...

What do you multiply by to get an accurate count for the whole world ?


And how long is that accurate count good for ?


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[jlcpls]

It's a well known theory that there is 1 Alpha Bull for every 25 dogs.

Simply walk straight with your PH until you are charged by an Alpha Dog. Upon dispatching the dog, if you have the nerve, walk until you get your second charge.

Divide the number of paces into 66 and multiply by the area of the town in acres. Multiply this number by 25.

[EFBell]

Why do I have the sneaky suspicion that Mr. Hammer already has the answer to within a couple of percentage points?

[laportecharlie]

Just stay in one area with lots of ammo and shoot until the population is zero.
C

[5spd]

Just stay in one area with lots of ammo and shoot until the population is zero.

Even when you think its zero there WILL be survivors and next time you go there it will be full again.... :D
One shooter will never make a dent. I have shot 2400+ p-dogs in the last 2 months in the same area & the ground still moves with them like wheat blowing in the wind.

[Blue Avenger]

Why do I have the sneaky suspicion that Mr. Hammer already has the answer to within a couple of percentage points?

I believe you may be right.

[Bad Water Bill]

5 spd Just give us your address and a large group of exterminators just might show up at your front door. :D :D

[5spd]

5 spd Just give us your address and a large group of exterminators just might show up at your front door. :D :D

The ranches I shoot thousands of p-dogs on wont let me host a shoot & I have been working on them to do that for 3 years now.
They have had to many show up shooters killing cattle, deer, turkeys, antelope and other range damage & not saying anything or making reparations that they have closed off all drive up shooters.
Its sad that the disrespectful shooters ruin it for the honest & respectful hunters/shooters.
They only allow a very few select shooters like me that have access to the ranches problem areas to remove all we can.

[Hammer]

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... very few select shooters like me

Maybe some day I can be a "select shooter".


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[laportecharlie]

The ranch that we hunt in South Central Wyoming is getting to be the same way. Gates left open, ruts in the fields, litter, amoung other things is causing ranch management to consider closing all PD shooting (except for a few "select shooters" ie :us) It's a shame but it is a tale you hear most everwhere.
Charlie

[ranjan1]

Just shoot as many as you can and then realize you didn't make a real dent. I've been hunting this critter since 94 and it's made me spend a lot of my money. Still I'd do it everyday if I could.

[Bad Water Bill]

Try printing a bunch of these for the rancher. He coppy's the info from their drivers license and now he knows exactly who did what.

http://pages.ripco.net/~jwn/idnrback.gif

[Blue Avenger]

Try printing a bunch of these for the rancher. He copy's the info from their drivers license and now he knows exactly who did what.

http://pages.ripco.net/~jwn/idnrback.gif

where is the line for how many cows your going to wound? all it tells me is who was there and when.

[Slowpoke Slim]

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What is the proper technique for estimating prairie dog populations ?


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I think you take the number shot, multiply by 2 pies (I like pie!), and round up to the nearest hole number (as in prairie dog hole).

That should be close...

;D ;D

[Hammer]

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... multiply by 2 pies (I like pie!)

Pies should be rounded to 3.

Apple
Pumpkin
Strawberry-Rhubarb
Cherry

Wait, that's four.

Yes, 3.14159 should be rounded to four.


Cobblers are not counted -- just eatened.



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[MZ5]

Pie is very good, indeed!

You a FS guy? Here's a good answer:
http://www.treesearch.fs.fed.us/pubs/30802

[pdog06]

The ranch that we hunt in South Central Wyoming is getting to be the same way. Gates left open, ruts in the fields, litter, amoung other things

Ill clean all that up and shut the gates next week Charlie ;D

I've been hunting this critter since 94 and it's made me spend a lot of my money.

Yeah, you made me spend alot of my money too ::), but we'll give er hell next week thats for sure. Maybe we'll make a dent in the population. >>>>>Videos and pics to come in a couple weeks...

[Blue Avenger]

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... multiply by 2 pies (I like pie!)

Pies should be rounded to 3.

Apple, with and without elderberry's
Pumpkin
Strawberry-Rhubarb
Cherry, peach, blueberry, lemon merange, banana cream,
black bottom
Wait, that's four.

Yes, 3.14159 should be rounded to four.


Cobblers are not counted -- just eatened.



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tried to fix your post, but it is to confusing ;D a limit of four is only for a very small plate

[carolyny476]

Try printing a bunch of these for the rancher. He coppy's the info from their drivers license and now he knows exactly who did what.

http://pages.ripco.net/~jwn/idnrback.gif

Thanks you for the reply.

[SuperChuck]

ok...

Let Pd equal the number of dogs killed
Let St equals the total number of shots taken
Kr equals kill ratio
Ty equals the total number of yards shot
Dmin equals the shortest distance shot
Davg is the average distance of each shot
Dmax equals the distance of the longest shot of the day

Assuming we were positioned in a uniformly dense population of dogs with a 360 degree safe direction of fire, and disregarding the chance that muliple shots will be taken at the same dog before connecting;

The area of affected shooting would be calculated by the "lethal doughnut (Ald)" with a hole the size of the shortest shot, and an outside the size of the longest shot.

Assuming a 100 yard shortest shot, and a 450 yard longshot, we can determine that the Ald= ((Dmax*3)2 * 3.14159)-((Dmin*3)2 * 3.14159)) or 5,442,804 ft2. Which equals 124 acres (131.44 acres are in the complete circle formed by the longest shot, only 6.5 acres were in the "too close" sanctuary).

Assuming that Davg closely approximates the shooter's sweet spot/comfort zone, and would be the point of highest successful shots, we can then model the density of the dogs by assuming that the frequency of shots at distance could be represented by a normal distribution centered on Davg called SHOTdistribution.

Accuracy - in the form of successful shots - would tend to be greatest at Dmin and least at Dmax. We will assume that Pd/St = Kr the probability of a sucessfull kill(kill ratio), and is also most relevant at Davg. Using the lever rule, and assuming our shooting skills are not infallible (what heresy), the success rate at Dmin is called KrDmin and equals the square root of Kr.

[SuperChuck]

Now that we know two points, Dmin, KrDmin and Davg, Kr, we can extrapolate/calculate KrDmax, or the kill ratio at the longest shot distance.

The Population at any given distance is the function of the number of kills at any given distance PdDmin+x divided by the kill ratio at that distance KrDmin+x divided by a constant, Ldr=percentage of lucky dogs that were never even sighted in or shot at;

((PdDmin+x/KrDmin+x)/Ldr)

Integration of this function, as a function of Dmin+x will establish the population density over the Ald. Take the total inhabited/infested area in question, apply this density, et voila, you have the estimate...............................

it definitely takes a B.S. degree to answer that one <eg>

[borg]

^^What he said. With the maths.