New research initiatives to boost tara iti conservation efforts

Date:  29 August 2024

Tara iti is New Zealand’s rarest breeding bird with fewer than 35 adult birds remaining.

“We are excited to embark on these critical research projects,” says Ilse Corkery, DOC Technical Advisor. 

“The research will concentrate on identifying optimal captive-rearing methods, mitigating climate change impacts, and enhancing genetic health. It is expected to provide valuable insights to improve management strategies and ultimately boost tara iti population size and resilience.”

The objective of the research is to address high-priority knowledge gaps through targeted and collaborative research and communicate findings to DOC decision-makers, whānau, hapū and iwi, researchers, community groups, and the wider public.

Starting in October 2024, a PhD student, supported by the Shorebirds Trust, will research optimal captive-rearing methods for tara iti. A master's project will focus on improving nest site protection strategies.

In December 2024, another master’s student will study the behaviour and habitat use of captive-reared versus wild tara iti. The following year in March, a master’s student will explore better predator control measures. Other ongoing projects include a study on hatching failure and an examination of nesting site vulnerability to sea level rise.

“We are thrilled to see such a diverse range of research initiatives being launched. Each project has the potential to significantly enhance our conservation strategies for tara iti,” says Ilse.

 “Our commitment to protecting tara iti is year-round, ensuring the species' safety and growth throughout the year.”

The 2023/2024 tara iti breeding season was a success, with an amazing 22 eggs laid and 13 chicks surviving to fledging. This success highlights the importance of continued and enhanced conservation efforts.

“Seeing such a significant increase in fledging rates is incredibly encouraging and underscores the importance of our ongoing work,” says Ilse.

The new research initiatives, combined with ongoing conservation efforts and recent successes, represent a strategic effort to secure the future of tara iti. By addressing critical knowledge gaps, we aim to develop effective strategies to ensure the survival and growth of New Zealand’s rarest endemic bird.

Once widespread, tara iti now breeds at only four main nesting sites north of Auckland: Papakānui Spit, Pākiri Beach, Waipū and Mangawhai sandspits. DOC works closely with partners including Patuharakeke, Ngāti Wai, Ngāti Whātua o Kaipara, Ngāti Manuhiri Settlement Trust, Auckland Zoo, The Shorebirds Trust, the NZ Fairy Tern Charitable Trust, About Tern, Birds NZ, Tara Iti Golf Club, the Waipū Trapping Group, University of Auckland and University of Canterbury.

Generous support for the tara iti season has been provided by the Shorebirds Trust, Endangered Species Foundation, Pākiri Beach Holiday Park, Tara Iti Golf Club, Auckland Council, Manāki Whitebait, Tongariro National Trout Centre, and New Zealand King Salmon.

Background information

The Tara Iti Research Advisory Group is recently formed and dedicated to the conservation of the New Zealand fairy tern. Their mission is to conduct and support research that informs effective conservation management practices, ensuring the survival and resilience of this critically endangered species. The group includes experts in tara iti biology and world-renowned experts in shorebird ecology, behaviour and genetics. This is part of a strategic effort to build a holistic and integrated research programme with strong links to DOC staff on the ground to ensure rapid up take of new management techniques and approaches.

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