Archives For 30/11/1999

An isolated island archipelago in mid ocean with a relict population of plants and animals found nowhere else and under threat from invasive species. Does that sound familiar? Nahh!  Not New Zealand this time!

What’s natural?

The Azores are a group of volcanic islands in mid Atlantic and have small remnants of forest types that once covered much of the land around the Mediterranean Sea. These remnants are fragmented and scattered over the 9 main islands of this Portuguese autonomous region. The native plants and animals have taken a huge hit over the last 600 years of human occupation and live on the verge of oblivion with many already extinct from human induced activities. You know the story… Clear the land, bring in domesticated beasties to enable farming. Oh, and don’t forget a few unwanted hitch-hikers!

Indigenous Azorian forest remnant. Photo: Herb Christophers.

Indigenous Azorian forest remnant

What spins your wheels?

Still, the attractions in the Azores are stunning! The overlay of historic, cultural and natural attractions has put it among my favourite places on Earth – OK I haven’t been to Kazakhstan!

And weeds! Whoa! I was staggered to find so many of the weeds there are our dire enemies here too.  The cliffs are strewn with ginger, woolly tobacco weed and bamboo. The exotic forests are asserting themselves in the spread and conquer process and hydrangers are the adopted regional flower in spite of being a noxious weed.

Grapes, bananas and bamboo going wild. Photo: Herb Christophers.

Grapes, bananas and bamboo going wild

Homesick?

An interesting feature of the landscape was the use of New Zealand pohutukawa in main amenity areas. The islands are at the same latitude as Auckland and my guess is that the pohutukawa found their way back to the Azores with whalers in the 1800s. And, the former flax industry has left New Zealand’s  harakeke all over the main island.

Pohutukawa planted in a park on Sao Jorge. Photo: Herb Christophers.

Pohutukawa planted in a park on Sao Jorge

On the beaches, there is New Zealand spinach and on the shore line there are karaka trees and cabbage trees.

New Zealand spinach on the rocky shore. Photo: Herb Christophers.

New Zealand spinach on the rocky shore

In spite of any degradation in the original natural state of the region there is a fierce pride in retention of the remaining natural values and there are the same tensions we have here. You can imagine that power supplies on an island archipelago are difficult. Wind power is going full tilt ahead on the islands to reduce reliance on fossil fuels. Dairy farming has intensified (the cheese is magnificent!) but cows dot the upland landscape to fill out the postcard quotas. The grapes eek out an existence in harsh conditions and produce good rich wines from rough volcanic soils. Quality water is at a premium.

So next time you are thinking that New Zealand is the only island archipelago with major invasive pest problems, give a though for the Azores and pop in to mid Atlantic to say Hola! They would love to see you.

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Home and away

hchristophersdoc —  12/05/2010

A kereru flies perilously close to the top of my head leaving a whorl of air spinning in a vortex. A tui in a nearby kowhai coughs and chortles and calls to it’s neighbour in the adjacent tree. A small flock of waxeyes chirp their way through the canopy of the scrub accompanied by a cheeky fantail and a warbler trills sweetly from not far away. A bellbird was around earlier in the day, just after the morepork stopped calling.  I bend down and delicately remove a weta from in front of me.

Waxeye. Photo: Herb Christophers

Waxeye. Photo: Herb Christophers

Its March on a Saturday morning, I am on the deck in my suburban backyard and I am enjoying weak autumn sun.  My half-gallon, ¼ acre, pavlova paradise doesn’t have a lawn to speak of and I refer to it as my ‘regenerating jungle’. Less informed people like my wife, call it a pile of weeds. – I suppose she is half right. Still, with not much lawn to mow, I can indulge a while longer as the native world according to suburbia, spins around me.

Tui in my Silverstream garden. Photo: Herb Christophers

Tui in my Silverstream garden. Photo: Herb Christophers

 

Suburbia

Pest control on the edge of suburbia has benefits that are there for all to see and hear.

It’s amazing what committed local authorities and community groups, can do to reduce the scar of human impact on the natural world.  The Wellington Regional Council, The Upper Hutt City Council, Forest and Bird and other people working in specific reserves around the area have ensured that at least in the upper Hutt Valley that we can live alongside native biodiversity.

Sure, we get flocks of sparrows, finches, Eastern rosellas, spur winged plovers and starlings, but it’s almost a level playing field for the native species. Get rid of the mammalian pest species from the bush and the natives can mix it with exotics in some places.  I’m not just talking about birds here. You should see the rata in summer. Since the pest management work in Keith George Memorial Park and along the ridgeline between Whiteman’s Valley and Silverstream and in many little pockets of native vegetation, the rata are blooming magnificently! 

Big Country

So its off into the scrub for Easter. The South Island beckons. Rain, hail, sleet and snow does not deter the weka and once the sun comes out, the bush is alive with robin, tomtit and warbler and all the usual suspects. A rifleman here, a bellbird there and a falcon soaring above the valley. Too late for cuckoo. And anyway, how the hell do they know how to get back home?

Whio, our native torrent duck. Photo: Herb Christophers

Whio, our native torrent duck. Photo: Herb Christophers

Duck for cover!

The real coup on this trip was to encounter whio – blue duck that inhabit the faster flowing currents in the clear mountain rivers of Kahurangi National Park.  Their numbers have been declining and without management, they may slip away forever and I don’t mean downstream. The pest control on the river edges keeps the stoat, ferret and rat numbers down and this allows enough whio chicks to get clear in the summer so that populations have a chance of long-term recovery.

DOC 150 trap on Whangapeka, protecting Whio from rats and stoats. Photo: Herb Christophers

DOC 150 trap on Whangapeka, protecting Whio from rats and stoats. Photo: Herb Christophers

Maybe one day, we will have them in the upper Hutt Valley?

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