How to remove observer bias from grid based observations

Discussion created by Chenay.Simms on Feb 23, 2015
Latest reply on Feb 23, 2015 by Dan_Patterson

Hi all


I have old animal sightings data that I want to analyse for distribution, frequency and landscape utilization. However the data was captured using a grid system where all animals seen within a specific grid cell get assigned the coordinate of the bottom left corner of the cell.


The area is fairly mountainous and there seems to be a strong bias towards grid cells with roads through them. 

Is there a way to quantify and or remove this bias?


Any suggestions would be welcome.