By Dave Houston
A presence of biologists?
Blue penguin at Oamaru
I’m not sure that anyone has come up with a term for a group of
penguin biologists (however a group of penguins is called a “waddle”),
but whatever it is, one was recently sighted in Oamaru at the biennial
Oamaru Penguin Symposium.
Around 60 researchers, conservation mangers, and fieldworkers from DOC,
Trusts, eco-tourism ventures and the community turned up to hear a
variety of papers on the biology and conservation of New Zealand (and
occasionally Australian) penguins.
14 years ago I attended the first symposium and it was all about
sharing with the Oamaru community what we had learned about the impact
of tourism on blue penguins at the nearby
Oamaru Blue Penguin Colony. Today the symposium covers all the penguin species of the New Zealand region and attracts an Australasian audience.
Some good news, some bad
Dan Palmer counting Snares penguins
Actually, except for the continuing increase in the
blue penguin population around Oamaru and the apparent stability of
Snares penguin population, the news for other species wasn’t that good.
Yellow-eyed penguins
had an OK year in Otago but on Codfish Island (off Stewart Island) a
continuing decline has us puzzled. Out on the remote Antipodes and
Bounty Islands things are not great either with significant declines
noted in the erect-crested and rockhopper populations.
Fiordland penguins have proved tricky to count, but despite the development of new, more accurate methods, the news isn’t great.
So what’s the problem?
Yellow-eyed penguin nest on Codfish Island
In most cases we just don’t know. Changes in food availability,
perhaps related to natural or man-made climate variations, are a
probably the most significant factor in current population declines, but
we understand the how and why poorly. The impact of fisheries in both
bycatch and influencing prey availability is equally poorly understood.
Research in these areas is time consuming, difficult and hard to fund,
so progress in understanding it is slow.
Snares penguins headed for sea, one fitted with a GPS/dive logger. Photo: Thomas Mattern
In Trusts we trust
A lot of the management of blue and yellow-eyed penguins in the
terrestrial environment is undertaken by trusts, community groups and
even commercial enterprises. These groups, along with DOC, have been
successful in managing many mainland sites on which penguins nest;
protecting habitat, controlling predators, educating the public and
carrying out research. Despite their good work much remains to be
done. More collaboration between community groups, universities,
businesses and DOC is required to help understand and resolve the many
issues affecting the long-term viability of our penguin populations.
Maybe you’ll join me in Oamaru in 2014 to hear what progress has been
made.
Yellow-eyed Penguin Trust staff and volunteers planting penguin habitat. Photo: YEPT
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