ACAP Latest News

Read about recent developments and findings in procellariiform science and conservation relevant to the Agreement on the Conservation of Albatrosses and Petrels in ACAP Latest News.

A southerly foraging area for Hutton’s Shearwaters deduced from stable isotopes

 Huttons Shearwater flock Lorna Deppe
Hutton's Shearwaters at sea; photograph by Lorna Deppe

Della Bennet (School of Biological Sciences, University of Canterbury, Christchurch, New Zealand) and colleagues have published in the New Zealand of Ecology on at-sea foraging behaviour of the Endangered Hutton’s Shearwater Puffinus huttoni.

The paper’s abstract follows:

“Stable isotope analysis of feathers can provide an indirect method to investigate the diet and foraging locations of birds during the time the feathers were growing. We used the isotopic composition of experimentally-induced feathers to investigate the foraging locations of the Hutton’s shearwater (Puffinus huttoni), an endangered seabird that is a breeding endemic to the Kaikōura region of New Zealand. The isotopic composition of feathers was first compared with potential prey items collected from the near-shore marine environment near the breeding colony. By applying trophic fractionation factors (2–4 ‰ increase in δ15N for every 1 ‰ increase in δ13C) and comparing the isotopic composition of the induced tail feathers and sampled prey items, we found that feather isotopic compositions were not consistent with a diet based on feeding locally. Both the δ13C and δ15N from zooplankton and fish collected within 8 km of Kaikōura were significantly different than the isotopic composition of induced feathers and were outside of the range expected for consumed local prey items. Instead, we found the isotopic composition of Hutton’s shearwater feathers was more consistent with feeding on potential prey items in the seas north-east and around Banks Peninsula, an area c. 100 km south of the breeding colony and where they had been tracked previously. Stable isotope analysis can provide insight into the foraging behaviour of birds at sea and demonstrates the importance of isotopic research in pinpointing foraging locations in seabirds with large geographic ranges.”

Reference:

Bennet, D.G., Horton, T.W., Goldstien, S.J., Rowe, L. & Briskie, J.V. 2022.  At-sea foraging behaviour in Hutton’s shearwater (Puffinus huttoni) as revealed by stable isotope analysis.  New Zealand Journal of Ecology 46(1): 3462.

John Cooper, ACAP Information Officer, 28 December 2022

Seasonal greetings and best wishes for 2022 from the ACAP Secretariat

 Seasonal Greetings 2022 E

ACAP-listed and Vulnerable Spectacled Petrel Procellaria conspicillata; photograph by Peter Ryan

The ACAP Secretariat extends season’s greetings and its best wishes for an albatross- and petrel-friendly and a safe 2022 to all the readers of ACAP Latest News and to the over 5800 followers of the Agreement's Facebook page.

 Seasonal Greetings 2022 F

Seasonal Greetings 2022 S

The Seventh Session of the Meeting of the Parties to the Agreement (MoP7), is planned to be held in Hobart, Australia from 9-13 May 2022, unless COVID-19 restrictions preclude a meeting in person, in which case MoP7 will be held virtually

In 2022 ACAP will continue to support World Albatross Day on 19 June for the third year with its chosen theme of Climate Change, producing new artworks, infographics and posters to celebrate the day.

Christine Bogle, John Cooper and Wiesława Misiak, ACAP Secretariat, 27 December 2021

The annual Laysan Albatross egg swap takes place in Hawaii

Egg swap 2021 candled egg
During the egg swap, all eggs get "candled" for fertility

The annual egg-swap exercise has taken place once more on the Hawaiian island of Kauai by the environmental NGO Pacific Rim Conservation who write on their Facebook page:  “The week before Christmas is always a busy one for us.  During that week we receive up to 45 Laysan Albatross [Phoebastria immutabilis] eggs from the Pacific Missile Range Facility on Kauai, where the adults nest next to an aircraft runway.  Since large birds and large planes are a bad combination, we are given the eggs, and then they are placed in wild "foster nests" across Kauai and Oahu whose natural eggs have died.  We determine whether eggs are alive by candling them and looking for the embryo.

Egg swap 2021 Eric and Lindsay
Egg swap in action on Oahu; photographs from Pacific Rim Conservation

Watch two short video clips by Hob Osterlund of Allene Henderson of Pacific Rim Conservation replacing a fertile egg after candling and replacing an infertile egg with a fertile one

https://www.facebook.com/hob.osterlund/videos/458034985868200

https://www.facebook.com/hob.osterlund/videos/410293000793815

Access previous egg swap posts here.

John Cooper, ACAP Information Officer, 24 December 2021

2021-12-24 00:00:00

Wisdom, the oldest known Laysan Albatross, returns to Midway Atoll in her eighth decade

November 2021 Wisdom 1Wisdom (Red Z333) on her nest site

Wisdom, the female Laysan Albatross Phoebastria immutabilis, who is the world’s oldest known banded wild bird, has been seen back on the USA’s Midway Atoll National Wildlife Refuge in the North Pacific.  With an estimated minimum age of 70, she has now reached her eighth decade (click here).  Wisdom was first seen at her nest usual nest site on the atoll’s Sand Island -on 26 November, one day earlier than in 2020.  The last sighting of Wisdom around her nest cup was made on 5 December.

November 2021 Wisdom 2
Wisdom does a wing stretch, photographs by Dragana Connaughton, Schoolyard Films

“There have been no observations of Akeakamai [her mate of the last few seasons] this year and no evidence of a nest cup; so it is unlikely that they will nest this year,” said Jon Plissner, Wildlife Biologist at Midway Atoll. “We will continue to monitor the area through the month of December, as a few new nest starts of Laysan Albatross can occur in December.”

“It is normal for albatrosses take a year off from parenting between chicks.  Wisdom and her mate have met on Midway Atoll to lay and hatch an egg almost every year since 2006.  It is estimated that Wisdom has laid between 30–36 eggs in her lifetime.  In 2018, her chick that fledged in 2001 was observed just a few feet away from her current nest, marking the first time a returning chick of hers has been documented.  The chick returned to the same area each year since then but this December was found 200 yards [180 m] away on a nest of its own.”

Access previous postings about Wisdom in ACAP Latest News here.

John Cooper, ACAP Information Officer, 23 December 2021

New Zealand and Spain sign an MoU to reduce seabird bycatch

 Antipodean Albatross off North Cape NZ 4 Kirk ZufeltAntipodean Albatross off North Cape, New Zealand, photograph by Kirk Zufelt

Last week New Zealand’s Ambassador to Spain, Nigel Fyfe, on behalf of the Department of Conservation and the Ministry for Primary Industries signed a Memorandum of Understanding with Spanish Vice President Teresa Ribera yesterday in Madrid, Spain to reduce seabird bycatch.  The MoU will promote the adoption of bycatch mitigation measures, in particular those set out in the Agreement on the Conservation of Albatrosses and Petrels.  The two nations will also share information and collaborate on research on seabird conservation.

“Highly migratory species may spend much of their time foraging in the high seas.  We can’t limit ourselves to protecting these taonga [treasure] species only when they are breeding on our islands or coast and foraging in our waters,” [New Zealand] Conservation Minister Kiritapu Allan said.

[New Zealand] Minister for Oceans and Fisheries David Parker said fishing in international waters posed a challenge to seabird species.  “Spain is a major fishing nation.  Together, New Zealand and Spain can play an important role in promoting best practice for seabird bycatch mitigation across the world.   This advocacy will help to protect our migratory seabirds in Pacific fisheries and beyond.”

The key actions in the MoU are to:

  • Promote the adoption of bycatch mitigation measures, in particular those advised in the Agreement on the Conservation of Albatrosses and Petrels (ACAP)
  • Share information and collaborate on research on seabird conservation
  • Cooperate in the implementation of the Antipodean Albatross Concerted Action

According to Live Ocean the MoU is designed to promote the adoption of best practice fishing methods, including using what is known as ‘three of out three’ – weighted lines, bird-scaring lines and night setting. It also includes a commitment by the two nations to advocate internationally to promote the uptake of these fishing methods (click here).

Three years ago, a similar partnership was established between New Zealand's Department of Conservation and the Ministry for Primary Industries and Chile's  Undersecretaria of Fisheries and Aquaculture and its Ministry of Environment (click here).

Read more here.

John Cooper, ACAP Information Officer, 22 December 2022

The Agreement on the
Conservation of Albatrosses and Petrels

ACAP is a multilateral agreement which seeks to conserve listed albatrosses, petrels and shearwaters by coordinating international activity to mitigate known threats to their populations.

About ACAP

ACAP Secretariat

119 Macquarie St
Hobart TAS 7000
Australia

Email: secretariat@acap.aq
Tel: +61 3 6165 6674