Yes, I agree with Laurie that we should welcome any study that seeks to
obtain REAL data. With such tiny differences in ocean temperatures, it
might be difficult to detect impacts on bird distributions. Nevertheless,
real data is the stuff that counts.
But flawed studies such as Wenju Cai's ocean 'hot-spots' give the game away
when they state:
“Detecting these changes has been hindered by limited observations but with
a combination of multi-national ocean watch systems and computer simulations
we have been able to reconstruct an ocean history…”
We should view with considerable scepticism studies such as these which rely
so heavily on computer modelling to reach what is clearly a pre-determined
conclusion.
See also
http://wattsupwiththat.com/2012/01/30/oh-noes-wind-driven-global-warming-hot-spots/
------------
Martin
*All outgoing mails scanned by Norton Anti-Virus 2011
-----Original Message-----
From: Laurie Knight
Sent: Tuesday, January 31, 2012 7:58 AM
To: Birding Aus
Subject: [Birding-Aus] Impact of climate change on pelagic birding
There are some interesting articles reporting rapidly rising
temperatures in key ocean currents - scientists compared "five ocean
currents that run along the east coasts of Africa, Japan, the USA,
Brazil and Australia" and "that over the past century the water in the
currents has warmed two to three times faster than the rest of the
world's oceans." <http://www.abc.net.au/worldtoday/content/2012/s3418386.htm
These temperature changes will affect the distribution of marine life
and I suspect are likely to impinge on the distributions of pelagic
bird species. It would be an interesting exercise to overlay species
sightings with sea temperatures and to see how bird distributions
change over time.
Perhaps a thesis topic for someone ...
Regards, Laurie.
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