Brolga - Barmah State Park, Murray River, Victoria

Subject: Brolga - Barmah State Park, Murray River, Victoria
Date: Fri, 2 Mar 2007 10:31:30 +1100
Hi Tony and birding-aussers, some detail for you on how bird distribution 
data is shown on Atlas of Victorian Wildlife maps (and other systems as 

The data you refer to is based on specific locality records but shown on 
published maps as grid cell records (either 5 minute or 10 minute grids). 
The grid records for Brolga in the Barmah area are based on observations 
of the species from Picola and Yalca North (north of Nathalia).  When 
these are converted to box-shaped grids the area on maps appears to cover 
Barmah Forest.

I've just checked the atlas maps for the Brolga and indeed sightings for 
the species in this area are ALL well outside the forest boundary.

So yes, this is '... just a quirk of reporting'.  Thanks for asking this 
question, a very pertinent observation on how peoples sightings are shown 
on maps.

cheers, Martin

Martin O'Brien
Wildlife Biologist - Threatened Species & Communities Section
Department of Sustainability and Environment
2/8 Nicholson St.,
East Melbourne  3002

To unsubscribe from this mailing list, 
send the message:
(in the body of the message, with no Subject line)

<Prev in Thread] Current Thread [Next in Thread>

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU