Housing density

To: "'Canberra Birds'" <>
Subject: Housing density
From: "Geoffrey Dabb" <>
Date: Tue, 8 Jan 2008 09:46:58 +1100

There doesn’t seem to be much surprising there.  Species richness and abundance increases up to a certain level of building density and then declines.  The full piece unlike the abstract might offer some reasons but surely a main one is gardens and other artificial plantings in moderately built-on areas.  Here is the slide I use in my off-the-shelf Canberra birds talk.


Weston talk.jpg


In the UK particularly the development would be on relatively bird-poor agricultural land, not the sylvan wonderlands of the poets.


I notice one curious sentence:  ‘ almost invariably avian abundance declined at housing densities below which the UK govt requires new developments to be built’.  Given the rest of the abstract, surely ‘below’ should be ‘above’.  I assume that the govt requirements are for a fairly high level of density and there are less birds when it is even higher (?).


From: martin butterfield [
Sent: Tuesday, 8 January 2008 8:58 AM
To: Canberra Birds
Subject: [canberrabirds] Housing density


In scouring the net I came across this abstract which might be of interest to readers.  This edition of the Journal doesn't appear to be available on line but might be available through the National Library or ANU.



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