Hi all
It should be recognised that sometimes domestic use of an area improves
the habitat for bird diversity. For example. across the Cooper Ck of
South Australia there are a number of wetlands that provide excellent
refuge for many species of waterbirds. The lake margins provide
extensive feeding areas for water birds including migratory waders but
in many areas, when cattle grazing is excluded, some of the wetland
margins become choked with dense short rushes and within a year or two
after removing cattle from an area, the diversity of species to be seen
often decreases. The habitat structure has been altered.
It is possible that sustainable forestry practices have benefited Superb
Parrots providing nesting trees have been protected.. If logging is
to proceed, the debate should identify which forestry practice is best
to maintain the diversity of the forest, selective logging or targeted
small area clear felling?. Ignoring the politics of forest management,
it needs to be recognised that these issues are rarely as straight
forward as they first seem.
At first glance it would appear that if a forest is to be logged
selective logging should be the preferred method for most wildlife
conservation reasons, especially if old growth trees with hollows are to
be retained. However in some forests selective logging can permanently
and significantly alter the habitat structure with all its ecological
impacts on biodiversity. Selective small area clear felling may
actually be preferable in some instances so long as the area cleared is
kept small relative to the adjoining uncleared forest and is managed to
avoid triggering a negative island affect. Clear felling can allow the
forest to regenerate from the start, somewhat like the primary and
secondary after affects of an intense bushfire and over a period of time
when the forest has regrown, it will have re developed its original
structure and most of its biodiversity..
And no, I don't have shares in Gunns
The following article is of interest
http://www.tasmedia.org/node/286
Regards
Ian May
St Helens Tas
Carl Clifford wrote:
Good to see the SPs are well managed by the local timber industry /8-)
On 11/05/2009, at 6:41 PM, Terry wrote:
Another story has just come in on bigpond news.
http://tinyurl.com/p7ekuw
-------Original Message-------
From: Carl Clifford
Date: 11/05/2009 12:24:35 PM
To: Rob Geraghty
Cc: Birding-Aus
Subject: Re: [Birding-Aus] Superb Parrot in the news
The Sydney "Daily Telegraph" is also carrying the story, on the front
page. The article claims that 1000 jobs. It is also a lead story on
the Yellowgraphs online site, where there some interesting comments
posted. Looks like the CFMEU is really gunning for the poor old Superb.
Carl Clifford
On 11/05/2009, at 8:56 AM, Rob Geraghty wrote:
http://www.abc.net.au/news/stories/2009/05/11/2566058.htm
It's sad that the prevention of species loss is regarded as "ruining
inland Australia". I feel sorry for anyone who loses a job but
frankly Australia's lack of effort at sustainable forestry is pathetic.
Rob
=======
Rob Geraghty
===============================
www.birding-aus.org
birding-aus.blogspot.com
To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to:
===============================
===============================
www.birding-aus.org
birding-aus.blogspot.com
To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to:
===============================
==============================www.birding-aus.org
birding-aus.blogspot.com
To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to:
==============================
===============================
www.birding-aus.org
birding-aus.blogspot.com
To unsubscribe from this mailing list, send the message:
unsubscribe (in the body of the message, with no Subject line)
to:
===============================
------------------------------------------------------------------------
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.0.320 / Virus Database: 270.12.24/2107 - Release Date: 05/10/09 07:02:00
===============================
www.birding-aus.org
birding-aus.blogspot.com
To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to:
===============================
|
