Thanks for posting that David.
The 'factoid' repeated in this story and in various versions elsewhere -
that there are only 50-250 Night Parrots in existence - continues to amaze
me. Having just completed a PVA (population viability analysis) for
Carnaby's Cockatoo, I have contemplated some of the demographic factors
that allow a species to persist. If, as it appears likely, that Night
Parrots still exist in SW Qld and NW WA (and tantalisingly maybe in NW
Vic), there would have to be >250 birds extant across this broad brown
land, surely. Maybe the difficulty associated with finding the things
clouds otherwise clear heads, and generates low estimates in an attempt to
rationalise the tiny number of sightings by biologists/naturalists??
L.
++++++++++++
Lawrie Conole
Kyneton 3444
Australia
lconole[at]gmail.com
===============================
To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to:
http://birding-aus.org
===============================
|
