December 2015 - Orokonui Ecosanctuary
Transcription
December 2015 - Orokonui Ecosanctuary
Newsletter Number 63 September-November 2015 Kōanga - spring We have had the typical highs and lows of Ecosanctuary life through spring. First, the confirmed demise of tieke (saddleback). And the gnawing uncertainty as to whether we still had a stoat. But then Paku and Quammen raised a takahe chick, the first born in Dunedin for a VERY long time. That was a ray of sunshine. And when Prince Charles and Camilla chose to visit us in early November, the Ecosanctuary became a destination for swarms of police and other dignitaries, but Ecosanctuary supporters and those of other conservation organisations were warmed by an encouraging speech from the Prince of Wales. He said he hoped we would still be here in the future so that his mokopuna (grandchildren) could also see the wonderful creatures that he had seen that day. Then, well you will have heard of the lows and highs of the stoat that was finally caught, and if not, read further. From the Trust November was a roller-coaster ride emotionally. After weeks of meticulous planning and preparation, Prince Charles and Camilla Duchess of Cornwall became our first royal visitors. They spent an hour at Orokonui, saw tuatara (with a bumble bee sideshow), Otago skinks, native frogs, rare plants and numerous birds, the entourage followed by a large media contingent. Prince Charles’ conservation-themed speech back in the visitor centre paid tribute to New Zealand’s efforts, including our work at Orokonui, to protect threatened wildlife. Conservation Minister Maggie Barry joined us for the afternoon – her second visit this year. She is a strong supporter of our vision. Their Royal Highnesses signed a visitor’s book for us so we have a nice souvenir of the visit. Huge thanks to the volunteers who chipped in on the day. Royal guides Elton Smith and Sue Hensley excelled under pressure. For Elton, though, the pressure was just starting because that same day we had a stoat dog checking out Orokonui and it found a stoat den deep under a totara tree! It was a relief next day to learn the mother stoat and one of her kits had been killed in a Fenn trap. The rest of the brood, too young, would not have survived. The drama underscored the fact we cannot rest on our royal laurels. Predators hammer at our fence daily and we must always keep our guard up. Protective measures in the future, besides new-era traps and lures, may include a stoat-detection dog and more trail cameras. Neville Peat, ONHT Chair. 1 Ecosanctuary Report 2015 has been an extraordinary year for Orokonui with many developments, highs and lows. On the biodiversity conservation front, highs have been the establishment of a kiwi crèche, the hatching of the takahe chick and the preparation for a green skink translocation. Lows were of course the detection of a stoat and the demise of the saddleback population. Each though has developed new skills and knowledge and greater resilience of the project. We are fortunate in having a highly competent Conservation manager in Elton Smith. The welcome of new staff added new skills to the Orokonui team; Jill McFarlane as financial administrator, Samantha Williamson on customer service, new casual staff for the education and café teams and a new part time ranger, Wiremu Bretton. Sharee Watts has a new role as Visitor Centre manager and rangers Kelly Gough and Geoff Clarke have had changes of roles with Matt Thomson having moved on. Such a great team makes my job a pleasure! New volunteers have joined the volunteer team and the hours they contribute to the project remain strong. We are highly appreciative of volunteers who very reliably pitch in when there is extra work to do such as building the kiwi crèche fence or preparing for the royal visit. Those several key volunteers who lead and support teams of volunteers are especially valued by Orokonui. The education programme has grown considerably under Tahu Mackenzie’s leadership with participation 70% over target for the year to date. The programme’s extensive outreach work has also grown through a portable laboratory ‘lab-in-a-box’ which Tahu helped others develop. Visitor numbers have grown a little and we’ve put effort this year to cater for the growth. We have doubled our car park space, increased our café kitchen workspace and renewed our walking track signage. Signage is now colour coded by track standard, some names changed to better reflect what wildlife is seen on the tracks, distances noted rather than times, and one long track has been divided into three names for easier management especially in times of emergencies. To make sure wildlife, staff, volunteers and visitors stay safe we continue to put a lot of effort into our health and safety processes and documentation. The predicted hot, dry summer, for example, means our fire plans must be highly effective. Thanks to the skills of café manager, Simon Kitchingman, the café has made many positive changes and we are delighted that it is now contributing to our biodiversity conservation costs as do proceeds from our gift shop and venue hire. Our marketing manager, Kerry Buchan, is good at determining best value spend for our relatively small marketing budget. Our new entrance signage has attracted more passers-by, our Qualmark accreditation has endorsed the quality of the experience we provide to visitors and we have developed a new-look, more user-friendly and smart phone friendly website. Even the visit of the royals helps to put us on the map! We are grateful to the Department of Conservation Community Funds for their ongoing support. With those funds, continuing sponsorship and new donations my fundraising load 2 has been reduced this year which has allowed me to give more attention to management and development tasks. We have lots of plans for 2016 but no doubt there will be some unexpected highs and lows in the mix – bring it on! Very best wishes for a joyful and safe holiday season Chris Baillie General Manager Staff profile - Simon Kitchingham Simon was born and raised in Dunedin. He has come to Orokonui with 25 years hospitality experience. This has seen him working extensively around New Zealand, Australia and Indonesia. Upon returning to Dunedin, Simon completed a degree in environmental management at the university of Otago. Having survived winter the focus for the cafe is to develop itself as more of a destination in its own right. By doing so the cafe will continue to establish itself as an asset for the Ecosanctuary. Simon has interests in Jazz, Kung fu, environmental politics and Camellia sinensis (tea) consumption and production. Biodiversity News Fauna Tuatara Now that warmer weather is with us, researchers from the University of Otago have begun their spring/summer surveys for tuatara. In less than two days, and searching in a limited area, 19 individual tuatara have been identified and several others have been heard. This is very reassuring news following the recent stoat presence in the Ecosanctuary. With the support of Dunedin Forest and Bird, further surveys over a wider area are planned for the summer months. You can help by reporting any sightings of free-roaming tuatara anywhere in the Ecosanctuary. Other signs to look for include scats (droppings) and possible nest diggings. A "survey card" is available at reception in the visitor centre with more information on what to look for and report. Any reports will be gratefully received and can be emailed to zoology@otago.ac.nz for the attention of Scott Jarvie or Alison Cree. Haast tokoeka The juvenile Haast tokoeka in the kiwi crèche have continued to do well, apart from one which died from a heart condition, that we could have done nothing for. The remaining Haast tokoeka will likely depart the Ecosanctuary in December if they pass all their health checks. If 3 our freedom from stoats is confirmed, it is likely that the Ecosanctuary will receive another batch of young tokoeka for the crèche in early 2016. Takahe So our planned pair of breeding takahe were canned - and fair enough given they were high value birds due to the genetic heritage. But we were given two fertile eggs for Paku to sit on, and sit on them she duly did. We were chuffed to find that both had hatched, but one of the young takahe must have perished soon afterward, as only one juvenile takahe was subsequently seen. Possibly because Quammen was not used to feeding young - with two young, both takahe parents need to feed the young birds. But he has got used to it now and both parents are feeding a rapidly-growing takahe chick. The takahe family hid away in the early stages, but is now being seen more regularly in open areas. The hatching and survival of a young takahe at the Ecosanctuary is a real milestone for us. How long it has been since the last takahe was born in coastal Otago is anyone's guess. Well done Paku! Paku and chick Photo: Paul Sorrell Saddleback A survey in early spring confirmed what we had suspected. No tieke were detected. This has been incredibly disappointing, as it seemed we were almost at the point where the tieke translocation may have been deemed successful. The stoat, a harsh winter, and dispersal outside the Ecosanctuary most likely all colluded to drive the tieke population down to its vanishing point. It is a small comfort that Orokonui is not the only site where tieke translocations have failed. We have learned from the translocation, so if more tieke need to find homes, then we may have another go at establishing a tieke population in the future. 4 Robin Three students from the Zoology Department, Luke Easton, Freya Moore and Aishwarya (Ash) Muralidhar, have recently been assessing the Ecosanctuary robin population, and provided the following account and update. Luke, Freya, and Ash after surveying part of the Ecosanctuary for robins. Ratbag robins! Freya and Ash are Masters students from the Department of Zoology, and have been busy monitoring and researching the South Island Robins since early October. Both students are following on from Professor Ian Jamieson’s (1957 - 2015) work with regards to robin alert behaviour towards introduced mammals and how this (along with nest-site selection) influences their survival inside and outside the sanctuary. The only two other populations (in Silverstream and Silver Peaks) continue to be monitored by Samantha Ray and Mike Jones. The first survey of the entire Photo: Luke Easton sanctuary for banded and new un-banded birds inside the sanctuary is underway, with 27 breeding pairs (most with fledglings) found so far, and the total robin count coming up to around 70 birds. Of the 27 pairs, 24 are new, thus the robins are still responding well inside the sanctuary. No doubt more pairs will be found over the coming summer. Green skink With a planned release of 40 green skinks (Oligosoma chloronoton) in January, some minor habitat manipulation has begun to enable soft releases. Thanks to Carey Knox for this initiative, and to one of our member’s who has pledged funds to assist with the translocation. Green skink Photo: Carey Knox 5 Flora Feature Kareao (supplejack) (Ripogonum scandens) What do miro, the long-lived podocarp tree featured in our last newsletter, and kareao, a twining vine that is featured in this newsletter, have in common? Both have large, bright crimson fruit. The adult leaves of kareao are less well-known, because they express themselves most in full sunlight high in the forest canopy. These adult leaves are bright green and glossy, in Typical strong, jointed, kareao canes in an Orokonui gully several opposite pairs along the nontwining stems that occur in full light. The pliant kareao canes were used to make hīnaki (eel traps) and crayfish pots (pouraka) by Maori. Not to mention for house construction, binding fences, tying up platforms and the traditional use of both māori and pākehā children bows for bracken fernstalk arrows. Less helpful to those travelling through forest are the dense tangles of kareao canes that occur in damp gullies in lowland environments throughout New Zealand. The strength of kareao canes is well known to those whose backpacks have caught in it! Juvenile kareao leaves and a single kareao fruit on the Orokonui forest floor. Photos: Kelvin Lloyd A second decade of bird surveys begins Valerie Fay Saturday the 5th of September 2015 and the start of another ten years of Bird Surveying under the supervision of Derek Onley, our own reknowned ornithologist and artist. This morning it is a 9am start (slightly later than most as it is usually at 8.30am). Weather reports from a member of the team in Mosgiel reports rain. Here at Waitati the morning is looking alright and we have enough time to complete our survey before the forecasted SW change. 6 At our meeting point, the old DOC car park on Blueskin Road the team start to arrive. Today we number eight keen volunteers, and Derek arrives armed with all the paperwork. To celebrate the beginning of our second decade of listening for birds he has a large date scone freshly baked that morning . Chuck is given the priviledge of cutting the scone so we can all partake in a snack before we head off to various areas. The scone was delicious but we can only have our second piece on completion of the task in hand. We are all despatched to various areas. Today I am on the eastern side of Mopanui road, this is an area which we refer to as JH. There is a slight breeze, blue sky dotted with a few clouds, and sunshine. It is just perfect. The area has changed over the ten years with everything growing and some of the sea views disappearing. I work my way along the line of listening stations both observing and listening for birds. Birds within 100 metres are recorded as I look and listen for birds over the 5 minutes at each station. I hear a robin that has flown over Orokonui’s fence and taken up residence here; I hope he has a mate. Over the morning I hear a few bellbirds, brown creepers, a dunnock, blackbirds, song thrushes, starlings, a tomtit and a rosella and see silvereyes, a goldfinch and a pair of harriers circling and calling to each other. They all get recorded. The rain arrives just as I finish. A successful morning for all the team with all the areas completed and back to the Visitor Centre to check in and another piece of that well earned scone. Chuck cuts the scone as the rest of the team look on. Photo: Claire Hagglund Mustelid Mayhem III We were extremely lucky to have Angela Newport and her stoat dog Mackey call in on the Ecosanctuary in early November. On the day of the royal visit, Mackey strongly indicated an area in the centre of the Ecosanctuary, then homed in at the base of a large Hall's totara. It was immediately obvious that a stoat den was located beneath the tree - lots of entrances, latrine areas, and bird feathers scattered around. Early the following day, Mackey went back to confirm the presence of stoats, became very excited again, and his display was corroborated by fresh stoat scat. Very depressing news for Elton and Kelly, but they consulted various experts on the best approaches for dealing with stoat dens, and armed with traps, audio playback gear and a shotgun, got back to the den site in the afternoon. As they investigated the den, a mature stoat left from one entrance, and growling noises from kits (young stoats) were emitted from the den complex as traps were dug in. The hope was that 7 the female stoat would return to the kits, so three of the five obvious den entrances were blocked off, and a series of traps set in the remaining two entrances. Two trail cameras were also established to monitor for the returning female. Elton returned at 7pm and his joyful reaction can only be imagined as he found the female, and one of the kits, caught in one of the traps. The untrappable stoat, we assume, had finally met her match. She had clearly known her den had been discovered and was in the process of moving her kits elsewhere. The den was then sealed with the addition of traps within the den tunnels. With the den being located beneath the large totara, it was impossible to excavate the den to extract any remaining kits. On the following day, a check revealed no new trail camera footage, no obvious excavations in the sealed entrances, and no traps sprung within the den. However one kit was seen just within arms length within one entrance, and was retrieved, unconscious. This suggests the kits were still dependent on their mother, which expert opinion also supported. While it is highly unlikely that the kits would survive in the sealed den without their mother, staff remain vigilant and have continued to operate traps around the den site and undertake checks to ensure the den entrances remain sealed. No further signs of life within the den have been observed. The adult female and her female kits were sent for autopsy to firstly assess pregnancy (which would signal a male stoat present within the Ecosanctuary), and secondly gain genetic evidence to compare with the other stoats killed during the year. The good news is that neither of the two recovered females were pregnant, which suggests there are no male stoats within the Ecosanctuary. Elton is also looking to train a pup in stoat detection, and this is supported by the Conservation Dog programme. The female stoat, caught in the first of a line of Fenn traps installed in one of the den entrances. Photo: Elton Smith Trail cameras are an important pest monitoring tool. We would like to purchase 10. They are $700 each. If anyone is able to sponsor one please give Chris Baillie a call – 482 1755. Donations for these are tax deductible. We’re also looking for a sponsor for an electric chainsaw for our woody weed control work. These avoid noise and air pollution and are kinder to staff. If you have one or a spare $1500 please phone Chris! 8 Mice A recent tracking tunnel pulse revealed a small pocket of mice within the Ecosanctuary, and seven mice have subsequently been trapped in this area. Staff A farewell function for the departing Matt Thomson was held, and he has handed over his duties: Kelly Gough has become our volunteer coordinator, and Geoff Clarke has had his hours increased and is now responsible for equipment and vehicle maintenance. Wiremu Bretton has been employed on a casual basis as a ranger. Visitors The royal visit on 5 November went very smoothly. The staff and volunteers excelled in their various roles in preparing for the event, and the sanctuary looked wonderful. Thanks to Neville Peat for his considerable work on this. It is sure to improve our international recognition. Volunteers Over 1100 volunteer hours were donated to the Ecosanctuary in October, ongoing testimony of the community support we are so grateful for. Tracks Tracks are receiving their usual maintenance and are all in good condition. The new walking track signage has been installed. Thanks to volunteer, Allan Kilner, for championing this project. Facilities and infrastructure As any recent visitors to the Ecosanctuary will have seen, we have completed double-siding of the carpark, which included filling of the ditch on the Blueskin Road side and installing a visual barrier on the visitor centre side. This has improved the car parking capacity, and further expansion options will be looked into. 9 Do you lack transport to the Ecosanctuary? We are aware that we have loyal members who cannot easily get out to visit the Ecosanctuary because they have no means of transport. We are sure we can find volunteers who would be willing to provide the transport. But first we need to know who might be glad of the opportunity. If that is you, please contact Alyth Grant (470 1142), who will do her best to match people up for a visit during the summer months. A call has already gone out to our band of volunteers, but other members who would like to help out in this way are also invited to contact Alyth. For other news and activities visit www.orokonui.org.nz or facebook. We are open daily except for 24 and 25 December. We warmly welcome the following new members: Individual Elizabeth Jenkins Rob Sherriff Yoann & Sandrine Feillet Naomi Pelet Sophie Fern Julie Harrington Riley Baker Margaret Thomson Craig McKenzie Juliet Meldrum Family Richard Stevens Tonia Calverley Tobias Danielmeier & Julia Albrecht Bruce Collier Maurice Matich Yusuf Cakmak Laurel Lanner & John Steel Ami Nukada Idoya Munn Stefanie & Tobias Langlotz Lucy Atkinson & Jeremy Whittam Douglas Calder Vivienne Heward H Aitchison & P Lowden Gordon & Pauline Bootten Borley Family Life Mrs Carol Matheson Archie Smith 10 Thank you to our sponsors Marie and Graeme Bennett Alexander McMillan Trust Dunedin City Council Caversham Foundation Department of Conservation Community Funds Ministry of Education Otago Daily Times Otago Community Trust Otago Regional Council Hope and Sons Cooke Howlison Oceana Gold MTF Harry J Wilson Trust Ironmaster Trust Topflite Rotary South Power Farming Otago Sargood Bequest Shacklock Charitable Trust Blackhead Quarries Ltd Dunedin Forest and Bird Naylor Love Ltd Callis Charitable Trust The Rotary Club of Dunedin NHNZ Farra Engineering Crowe Horwath Ryman Healthcare Mitre 10 Mega John Swan Gallaway Cook Allan COGS James Sharon Watson Trust Speights Environment Fund Attention members for whom we don’t have an email address: Because of the time and expense of posting information to members, or trying to make contact by phone, in between newsletters, we only email invitations to special events. If you don’t have an email address you can keep up to date with what’s happening through our website or by phoning the office. Ecosanctuary contact details: Street address: 600 Blueskin Rd, Waitati, Dunedin email: info@orokonui.org.nz Telephone: (03) 482 1755 www.orokonui.org.nz 11