Thanks for your suggestion. I am aware of the distance software and the concepts behind it. In fact, i have used in my doctoral studies to estimate density of pheasants in the Himalaya. But the recent work was a landscape based survey, which means that we had to survey large area of over 15000sq.km. within 4 months time. so, we could not go for direct counts, which would require both repeated measures other than replicate transects.
i am finding it difficult to deal with this kind of presence/absence data, as it is difficult to say, the occurence is neighbouring segments is because of spatial-autocorrelation or because the species density is truly high. from the data, i picked our pair of segments (say, first and second), and counted how many segments have similar value..and similarly with 2 and 3, and 1 and 3. I found almost similar values in all these pairs. This created doubt that this could be because of high density. one solution perhaps is to estimate density of deer based on direct counts, and find the relationship with the binary data. THANKS AGIAN FOR YOUR EFFORTS. best ramesh --- [EMAIL PROTECTED] wrote: > Interesting question... > > Anyway, despite usual bibliography regarding > spatial dependecy, spatial > autocorrelation and how to measure it, If you are > unaware of it, I would > suggest the usage of the "Distance" software, It is > the evolution of the > TRANSECT DOS-based program, and I think you will > find it interesting: > > http://www.ruwpa.st-and.ac.uk/distance/distanceabout.html > > (I have no affiliation with the authors) > > Gaston Pezzuchi ________________________________________________________________________ Yahoo! India Matrimony: Find your partner online. Go to http://yahoo.shaadi.com -- * To post a message to the list, send it to [EMAIL PROTECTED] * As a general service to the users, please remember to post a summary of any useful responses to your questions. * To unsubscribe, send an email to [EMAIL PROTECTED] with no subject and "unsubscribe ai-geostats" followed by "end" on the next line in the message body. DO NOT SEND Subscribe/Unsubscribe requests to the list * Support to the list is provided at http://www.ai-geostats.org
