bear


Counts of grizzly bear (<em>Ursus arctos</em>) litter sizes from the Greater Yellowstone Ecosystem from 1973-2010.  


datasets

Contains functions from: Aho, K. (2014) Foundational and Applied Statistics for Biologists using R.  CRC/Taylor and Francis, Boca Raton, FL, ISBN: 978-1-4398-7338-0.

Ken Aho

asbio

A Collection of Statistical Tools for Biologists

bear function

A data frame with 38 observations on the following 5 variables.
  <dl>
    <dt><code>Year</code></dt><dd>Year.</dd> <dt><code>X1.cub</code></dt><dd>The number of litters with one cub.</dd> <dt><code>X2.cub</code></dt><dd>The number of litters with two cubs.</dd> <dt><code>X3.cub</code></dt><dd>The number of litters with three cubs.</dd> <dt><code>X4.cub</code></dt><dd>The number of litters with four cubs.</dd> </dl> 

Format

Haroldson, M. A (2010)  Assessing trend and estimating population size from counts of 
	unduplicated females. Pgs 10-15 in Schwartz, C. C., Haroldson, M. A., and K. West editors.  
  <em>Yellowstone grizzly bear investigations: annual report of the Interagency grizzly bear study team, 2010</em>.  U. S. Geological Survey, Bozeman, MT. 

bear: Grizzly bear litter sizes

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