Auckland | 24 – 29 November 2013
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Auckland | 24 – 29 November 2013 Contents Organising committee Presidents’ Welcome 01 • CHAIR: Bruce Burns Sponsors and Exhibitors 02 The University of Auckland General Information 04 • Jacqueline Beggs The University of Auckland Venue Maps 05 Presenter Information 07 • Jonathan Boow Auckland Council Student Awards 08 Social Functions 09 • Kerry Bridle University of Tasmania Field Trips 10 • Ewen Cameron Auckland General Information 12 Auckland War Memorial Museum Programme 15 • Weihong Ji Programme – Overview 15 Massey University Programme – Session Timetable 15 • Sebastian Leuzinger Plenary Abstracts 26 Auckland University of Technology Presented Abstracts 30 • Mahajabeen Padamsee Symposia 30 Landcare Research Oral Presentations 97 • George Perry The University of Auckland Speed Talks 173 Poster Presentations 185 • Steve Pointing Auckland University of Technology Notes 205 Liability Disclaimer 205 • Gail Spina Ecological Society of Australia • Alicia Warren Department of Conservation 3 1 Auckland | 24 – 29 November 2013 Presidents’ Welcome Nga mihi niu ki a koutou katoa. Welcome to all delegates of the EcoTas13 conference. On behalf of the New Zealand Ecological Society, it is While both being part of Gondwana initially and being my pleasure to welcome delegates to EcoTas13, the only separated by a small sea, it is interesting that 5th joint conference of the New Zealand Ecological both Australia and New Zealand have experienced Society and the Ecological Society of Australia. The such different histories over the last few millions theme, Celebrating ecology on both sides of the of years. Developing in isolation from each other, Tasman: diversity and opportunity, acknowledges the ecology of the two countries diverged. Such the commonalities, differences and challenges of differences between two land masses creates great our respective ecologies. Our joint conference is a opportunities for researchers to easily ‘step outside’ forum where existing cross-Tasman partnerships are their paradigms associated with their own country. strengthened and new collaborations develop. Such Sharing our research results from two separate networking is essential to ensure that ecology within countries is likely to allow us to think ‘outside the our Pacific region develops the necessary strengths to box’ in our own work. That makes for an exciting meet future ecological challenges in an ever-changing conference full of new ideas. world. While there are differences in our soils, our climate, I trust that your participation in this conference will our vegetation, and our fauna, we both face very provide you with both personal and professional similar anthropogenic disturbances; invasive weeds, benefits through new information, research outcomes, habitat loss, introduced predators, changes in climate. and shared best practices. A very special greeting is Discussing our research with each other may open extended to those who have been recognised through our eyes to new possible solutions and build new the awards, grants and scholarships offered by both collaborations. societies. These acknowledge valuable contributions to our discipline, and also reward and encourage The Ecological Society of Australia would like to emerging ecologists. I invite everyone to share in welcome you to this conference and thank the NZES the celebration of these awards by engaging with the for hosting this opportunity. I hope new ideas, new recipients during networking opportunities. networks, new techniques and new possibilities are the outputs of our 5 days together. We are indebted to the organizing committee for assembling a comprehensive programme of symposia, contributed talks, workshops, field trips Prof. Kris French (President ESA) and social events that make up the conference. Equally important are the sponsors, industry partners and exhibitors who, collectively, make events like this a possibility. I thank these organisations for their contribution to the conference. I look forward to sharing the experience of the ecology of Australasia with you at this exciting forum. Welcome to Auckland, welcome to New Zealand! EcoTas13 Mel Galbraith (President NZES) 3 1 5th joint conference of New Zealand Ecological Society and Ecological Society of Australia Auckland | 24 – 29 November 2013 Sponsors Exhibitors Special thanks to our sponsors for their support. Special thanks to our exhibitors for their support. Advanced Telemetry Systems (ATS) offers innovative and reliable wildlife tracking products designed for researchers world-wide. We manufacture over 400 models of custom VHF transmitters, VHF receivers/data-loggers, acoustic systems, and GPS collars with Iridium technology. Visit www.atstrack.com today to get personalized project consultations. Wiley Blackwell is the world’s leading publisher in Ecology, Conservation and Evolution, and is proud to publish Austral Ecology and Ecological Management & Restoration on behalf of the Ecological Society of Australia. Our cutting-edge research is aimed at researchers, students and professionals working in a range of sub-disciplines. Visit the Wiley stand to find out about our extensive range of resources. 2 3 5th joint conference of New Zealand Ecological Society and Ecological Society of Australia Auckland | 24 – 29 November 2013 Wild Supply specialises in the design and AS1 Ltd distributes leading edge technologies to development of innovative tracking and monitoring Australian and New Zealand researchers. “Presens” solutions for the wildlife professional. Our growing is well known globally for its fibre optic technology for product suite includes unique technologies such as Oxygen, Carbon Dioxide and ph monitoring. Try the Wireless Identification Devices (WIDs), and lightweight new Visisens 2D system combing optical foils with avian GPS devices with drop-off capability. We also imaging technology. Use “Biolog” for phenotypic offer cost-effective and robust remote acoustic microarray characterisation of microorganisms. recording systems. The Terrestrial Ecosystem Research Network Sirtrack specialise in design and manufacture (TERN) connects ecosystem scientists and enables of wildlife tracking systems using state-of-the-art them to collect, contribute, store, share and integrate technologies. data across disciplines. Collectively this increases the capacity of the Australian ecosystem science With 25 years experience, our talented team of community to advance science and contribute to professionals are experts in animal monitoring and effective management and sustainable use of our tracking technology. ecosystems. Our wildlife telemetry consultants offer you a wealth of E: [email protected] telemetry and biological knowledge from many years W: www.tern.org.au spent in the field. 2 3 5th joint conference of New Zealand Ecological Society and Ecological Society of Australia Auckland | 24 – 29 November 2013 General Information Registration Desk Hours Cameras and Electronic Recording For any questions, please visit the registration desk No electronic recording of presentations is permitted located in the Owens Foyer of the Aotea Centre in any form without the express permission of during the conference. conference organisers and speakers. Sunday 24 November* 5.00pm – 7.00pm Car Parking Monday 25 November 7.30am – 4.30pm Parking is available at the Civic Car Park with entry Tuesday 26 November 8.00am – 4.30pm at Greys Ave and Mayoral Drive. Early bird parking is available for $13 a day (must arrive before 8.30am and Wednesday 27 November 8.00am – 4.30pm leave before 7.00pm). For more information on the car Thursday 28 November 8.30am – 4.30pm park please refer to www.aucklandtransport.govt.nz Internet Access *On Sunday the registration desk will be located on level 1 of the Owen G Glenn Building at the University Aotea Centre: of Auckland from 5pm – 7pm. Wireless Network: RFA Events Passphrase: eventswifi Name Tags Once you open a web browser enter the credentials Please wear your name tag at all times during the below: conference and social events. You will be asked to present your name tag to enter the conference dinner. Username: ecotas Password: Lxmm93 Mobile Phones Conference Catering During all presentations please switch off or turn your mobile phones to silent. Vegetarian morning and afternoon teas are included in the registration fee and will be served in the Owens Conference Mobile App foyer at the Aotea Centre. Please use your keep-cup Stay informed with all that’s happening during for hot beverages. If you ordered a lunch-box online EcoTAS13 by downloading our smartphone app, these can be collected from the Owens foyer at ShowGizmo. lunchtime. Simply download the free ShowGizmo app to your Dietary Requirements smartphone, available from the Apple App Store (for Care is taken to ensure all dietary requirements are iPhone) or Google Play (for Android) , enter your email catered to. If you specified your dietary requirements and the password you set when we invited you to the when registering, please make yourself known to the app and you’re good to go! If you haven’t received catering staff at each meal break and advise them of our email, use the temporary password ecotas13 your name and requests. instead. No Smoking Policy If you don’t have an iPhone or Android phone, open your smartphone browser and type showgizmo.mobi Delegates should be aware that smoking is banned to use the mobile web app instead. from all public buildings in New Zealand, including the University of Auckland and the Aotea Centre. This