hi all, we have a set of data that describes community composition at a site from a series of surveys taken over many years. we are interested in looking at temporal patterns in community composition. the problem is that the intensity/effort/focus of each of the surveys varies.
im guessing the problem of separating known unknowns from unknown unknowns is a common problem for community ecologists/biogeographers so was interested in understanding how other folk have tackled this problem. we do have quite detailed information on which taxa were searched for in which survey (and to what intensity), but are having trouble figuring out a suitable way to get from this raw data to something we can analyse. any papers, hints, etc would be much appreciated (and i will post a summary to the list) also, a while back i asked the group for some help with indices of niche width/breadth and overlap - many people kindly sent detailed replies to me but unfortunately most of those replies were lost in a computer meltdown. I apologize for not getting back to those folk. cheers, tony __________________________________________ tony dell department of zoology and tropical ecology james cook university townsville, qld 4811 australia ph 07 47814757 or 47814520 fax 07 47251570 email [EMAIL PROTECTED]
