Estimating Otter Numbers Using Spraints: Is It Possible?

Table 2

Active sprainting points and otter numbers at Loch na Dal.

Month	Active sprainting points	Otter numbers
October 2011	6	2
November 2011	7	3
December 2011	9	2
January 2012	10	2
February 2012	11	2
March 2012	7	2
April 2012	8	3
May 2012	9	1
June 2012	5	1
July 2012	4	1
August 2012	4	1
September 2012	7	2

There was also no correlation between active sprainting points and otter numbers (𝑟=0.42, 𝑛=12, and 𝑃<0.05). Using the Pearson Product Correlation Coefficient only 4.39% of spraint numbers could explain changes in otter numbers.