mapping wildlife

[Malcolm Williamson]

It sounds to me like you are planning your analysis around a vector data 
format. That being the case, GRASS is not the package to use (I believe 
that Arc/INFO has most of those features that you want). If you do 
decide to stay with GRASS, you will need to change your modelling 
approach to reflect a raster data model. I recommend C. Dana Tomlin's 
_Geographic_Information_Systems_and_Cartographic_Modeling_ (Prentice 
Hall) for a good overview of raster analysis techniques, most of which 
may be applied in GRASS. Good luck!
	-Malcoml
--
Malcolm D. Williamson - GIS Specialist           E-mail: malcolm at cast.uark.edu
Center for Advanced Spatial Technologies      Telephone: (501) 575-6159
Ozark Rm. 12                                        Fax: (501) 575-5218 
University of Arkansas              
Fayetteville, AR 72701

 On Tue, 18 Feb 1997, J Lambert wrote:

> 
> Greetings!
> 
> I began using GRASS in January to analyze data for a study of bird
> territories and am wondering if there is a GRASS program or a series of
> operations that will allow me to randomly subsample a cluster of digitized
> points and automatically draw minimum convex polygons around the
> subsampled clusters.  The points represent locations of bird observations
> and I hope to draw minimum convex polygons to estimate territory
> characteristics (size, perimeter length, minimum axis, maximum axis). 
> 
> If you are not familiar with any such programs, please refer me to
> individuals or organizations that may be using GRASS to map wildlife.
> 
> I would greatly appreciate any feedback on this topic, as the
> ability to accurately estimate territory parameters with GRASS is central
> to my master's project.
> 
> Thank you,
> 
> Dan Lambert
> jlambert at gpu.srv.ualberta.ca
> 
>