Archives For 30/11/1999

This week’s photo shows Waituna Lagoon—the location of a recent community open day marking the first year of DOC’s partnership with Fonterra.

Waituna Lagoon, Southland, New Zealand.

The natural habitat at Awarua-Waituna, including the 1350 hectare Waituna Lagoon, is one of five key areas that DOC and Fonterra are working together to improve over the next ten years.

The open day was a chance for the local community to see the work being undertaken at Waituna by Fonterra and DOC, in conjunction with Ngai Tahu, the Southland District Council and Environment Southland.

“In the first year our focus has been on monitoring and science. We’ve got to get this right to ensure the whole project sets off in the right direction and can make a real difference,” said Fonterra Living Water Project Manager, Nicola Toki.

Today’s photo of the week is of volunteers planting harakeke/flax at Athenree Saltmarsh wetland near Tauranga.

athenree-volunteeers-580

The Athenree and nearby Waihi Beach community have taken on a challenge to plant over 9000 plants at the wetland over winter.

This work is part of a multi-year project to return farmland to wetland habitat for threatened native animals.

Photo by Peter Huggins, Partnerships Ranger, Tauranga.

Anyone who thinks swamps and bogs are merely dirty puddles of water to avoid at all costs is missing out on hidden treasure! DOC’s Jack Van Hal explains…

The swamp helmet orchid, otherwise known as Corybas carsei, loves life in the bog. Once upon a time it could be found in several bogs, but today these little beauties occur only in one site, in one peat bog within the Whangamarino Wetlands in the Waikato.

Swamps eye view. Photo: George Novak / NZ Geographic.

Swamp eye view

It is a tiny nationally critical orchid, only 10-30 mm tall at flowering, which has suffered from orchid thieves and wetland drainage.

The single remaining population at Whangamarino is currently at risk from vegetation succession within its preferred habitat, among open sedge and wire rush.

Corybas beauty. Photo: George Novak / NZ Geographic.

Corybas beauty

The flower is a conspicuous maroon-red in colour and is raised above a single leaf. It appears from September through to November. It is such a rare thing that New Zealand Geographic recently came to photograph it for an article, but they were not allowed to identify its exact location.

New Zealand Geographic photographer, George Novak, photographing Corybas carsei.

New Zealand Geographic photographer, George Novak, on assignment at Whangamarino

At Whangamarino, DOC staff have been managing the threats to this little beauty and monitoring shows that numbers have increased from a low of 77 individuals in 2008 to 195 individuals by 2011.

Rangers have been helping to create disturbance regimes by controlled burns to promote growth of the orchid.

Controlled burn of Corybas carsai habitat in 2010.

Controlled burn of Corybas carsai habitat

Other management and research options being explored include translocations to appropriate habitat within and to other nearby wetlands, and time lapse photography to determine how the orchids are pollinated and what time of year they flower and produce seed.

Thanks to the concerted effort under the Arawai Kākāriki wetland restoration programme the plight of Corybas carsei looks promising.

Orchid poster.

DOC's Lizzy Sutcliffe.

Lizzy Sutcliffe

By DOC’s Lizzy Sutcliffe.

On the morning of World Wetlands Day this year, I was lucky enough to be in one of the world’s most beautiful wetland habitats, Ōkārito Lagoon on the West Coast.

At 7.30 am on  a perfect West Coast morning, I took a boat trip, courtesy of Ōkārito Boat Tours, to explore New Zealand’s largest unmodified wetland.

Ōkārito wharf.

Ōkārito wharf

Despite being drawn back to Ōkārito time and time again I had never ventured out on to the lagoon. I knew the trip was going to be pretty special and it certainly didn’t disappoint, with an absolute blue sky allowing views of New Zealand’s highest peaks beyond glassy, reflective water and lush rainforest. We were all in awe of this insanely picturesque place and grateful to our guide, Swade, for opening this hidden world, inaccessible by land, up to us.

Swade the guide through the Ōkārito guide.

Swade, our guide

World Wetlands Day

International World Wetlands Day is celebrated on 2 February around the world—a day set in recognition by the Ramsar Convention for the worldwide protection of wetlands—and this year’s theme was Wetlands & Agriculture: Partners for Growth.

In order to mark the day locally, DOC’s Franz Josef Field Base partnered with Ōkārito Boat Tours to offer seven, free boat trips for people living in the vicinity of Ōkārito Lagoon over the weekend of 1-2 February. The offer attracted 75 people (appropriately, many from rural/farming communities) from Fox, Franz, Hokitika and Haast all keen to get a glimpse of this nearby wonderland.

lizzy-sutcliffe-okarito-vegetation

Ōkārito Lagoon vegetation

A precarious balance

Since 2008, when Paula Sheridan and ‘Swade’ Finch began operating their boat tours, they have noticed how even small changes in weather, wind and water levels can cause dramatic changes in the behaviour and sightings of various birds.

On this day Swade noted that wading bird numbers had been low this year due to unusually high water levels in the lagoon. We still managed to spot a good variety of birds including godwits, spoonbills, Caspian terns and several of the area’s, iconic kotuku/white heron whose only NZ breeding colony is located just up river near Whataroa. I was particularly excited by the very real possibility of seeing an Australasian bittern—but, sadly, no such luck.

lizzy-sutcliffe-okarito-kotuku

Kotuku/white heron

Glaciers to Wetlands restoration partnership

Things are looking up for the huge diversity of species that rely on this precious fragment of the Coast. As part of its work to conserve the lagoon’s outstanding natural wealth, DOC has partnered with Air New Zealand Environment Trust (ANZET) on the four-year Glaciers to Wetlands project to restore the Ōkārito Wetland System.

Part of the project has been the creation of a community nursery in Ōkārito. The nursery will generate all the native plant species required to replant the areas at Ōkārito and Lake Wahapo. To date, thousands of seeds and seedlings have been collected, and will be grown at the nursery with the help of the community and volunteers.

View of the Southern Alps from Ōkārito Lagoon.

The Southern Alps

Already planning for next year!

As the sun rose higher in the sky and our boat returned to Ōkārito wharf, I struggled to think of a better way to celebrate the world’s vital and threatened wetlands. Paula tells me that plans for next year include land-based activities as well as the boat trips and sausage sizzle “so people can learn even more about the balance of this ecosystem and what it provides for all of us”.

If you can’t wait that long, you might have to just get yourself to Ōkārito and check out the boat trips, kayaking, walks and kiwi tours available from this humble township for yourself.

By Jack Van Hal, Delivery Planner Biodiversity

Yesterday (2 February) was World Wetlands Day. To celebrate, we’re putting the spotlight on Whangamarino Wetland in the Waikato.

Swamp land at Whangamarino.

Whangamarino Wetland in the Waikato

World Wetlands Day is held every year, on February 2, to mark the signing of the Ramsar Convention on Wetlands and the Day provides an opportunity to highlight the important role wetlands play in our environment.

Whangamarino swamp.

Wetlands play an important role in the environment

Whangamarino Wetland is one of the largest swamp and peat dome wetland complexes in the country at 7,000 hectares. A Ramsar site since 1989, the wetland is also important to Waikato-Tainui people as recognised in the Waikato River Settlement.

Australasian bittern/matuku, black mudfish and swamp helmet orchid are just some of the threatened species thriving in the wetland. Other species include marsh and spotless crakes, fern birds, dabchicks and various gamebirds, making it a popular spot for game-bird hunting.

DOC ranger checking on the mudfish.

Mudfish

However, the wetland faces a number of threats, including excessive inflows of sediment and nutrients from the wider catchment, altered water levels due to the lower Waikato River Flood Scheme, predators, stock trampling and weeds. Despite these threats, large areas of raised peat bog remain in good condition, supporting communities of threatened wetland plants.

DOC has been implementing innovative wetland conservation initiatives at Whangamarino Wetland under the Arawai Kākāriki wetland restoration programme.

Kayaking through the wetland.

Kayaking through the wetland