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.

Six presentations on albatrosses will be made this week at the Pacific Seabird Group's online Annual Meeting

PSG 2026 logoThis year’s Pacific Seabird Group's Annual Meeting (its 53rd) is being held held online from 23-27 February, with the theme "Seabirds: Connecting Oceans, Islands, and People”.

A list by first authors and titles of six oral and poster presentations on ACAP-listed species follows.  Four albatross species are considered, the three North Pacific albatrosses in the genus Phoebastria and the Black-browed Albatross Thalassarche melanophris of the sub-Antarctic.  Find their abstracts and all authors by scrolling to the presentation numbers in the Abstract Booklet.

9.  Nao Ota. Non-dyadic interactions during courtship communication in Short-tailed Albatrosses

15.  Jingqi Corey Liu.  Offspring telomere length reveals dissociation between parental and offspring quality in a long-lived seabird, the Black-browed Albatross (Thalassarche melanophrys) [=melanophris]

51.  Rachael Orben.  Using high-resolution satellite imagery to document the population change of two colonies of Short-tailed Albatross

60. Madeline Adams.  Looking at total mercury levels and species identification in Laysan Albatross (Phoebastria immutabilis) and Black-Footed Albatross (Phoebastria nigripes) eggs from Midway Atoll

64.  Shiori Terretta.  Plastic ingestion of translocated Black-footed Albatross chicks

79.  Caitlin Dudzik, Early bird special: quantifying Tiger Shark predation on albatross fledglings at Kure Atoll

Presentations will also be made on northern hemisphere petrels, shearwaters and storm petrels, with emphasis on those that breed on the inhabited Hawaiian islands.

John Cooper, Emeritus Information Officer, Agreement on the Conservation of Albatrosses and Petrels, 22 February 2026

The fifth Island Biology Conference will be held in Japan in November 2026

Island Biology Symposium 

Registration and a call for symposia have opened for the fifth International Conference on Island Ecology, Evolution and Conservation (Island Biology Conference) to be held in Atami City, Japan from 2-6 November 2026.  A mid-conference excursion to Izu Oshima Island as well as organized trips before and after the conference are planned (click here for details).  The conference will be held on behalf of the Society of Island Biology.

“Islands are renowned for their extraordinary biota - inspiring biologists and providing key insights into evolution, biogeography, and ecology.  As a result of the devastating effects of human colonization, island ecosystems face severe threats, and island conservation has become a vital international concern.”

“Scientists are generating data on the world's islands at an unprecedented pace and now is an opportune time to bring together island biologists from around the world to synthesize developments in the field.  An international conference consisting of plenary lectures, symposia, contributed talks, and posters will examine a broad range of taxa, regions, and biological disciplines.  This conference is held on islands around the world, at which island biologists can come together, share insights, and develop collaborations that will accelerate the pace and effectiveness of island research and conservation.”

Learn more and register here.

Previous International Conferences on Island Ecology, Evolution and Conservation were held in Hawaii, USA in 2014 (1st), Azores, Portugal in 2016 (2nd), Réunion, France in 2019 (3rd) and Italy in 2023 (4th).

Information from Wieteke Holthuijzen, Pacific Seabird Group.

John Cooper, Emeritus Information Officer, Agreement on the Conservation of Albatrosses and Petrels, 20 February 2026

Metal(loid) concentrations in Black-browed Albatrosses stranded in Brazil

Graphical abstract BBA SerafiniGraphical abstract, from the publication

Guilherme de Espindola da Silveira (Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Federal University of Santa Catarina, Florianópolis, Brazil) and colleagues have published in the Marine Pollution Bulletin on metal(loid) concentrations in carcasses of stranded Black-browed Albatrosses Thalassarche melanophris from the southern and southeastern coasts of Brazil,

Patricia Serafini BBA Isla IsloteA Black-browed Albatross on Islote Albatros, Tierra del Fuego, Chile, photograph by Patricia Serafini

The paper’s abstract follows:

“Metal(loid)s occur naturally in the environment; however, anthropogenic activities can release significant amounts into ecosystems, offering risks to biological communities. In response to such exposure, organisms induce the synthesis of metallothioneins (MT), low molecular weight proteins involved in metal detoxification in a wide range of organisms. In this study, we investigated the relationship between hepatic MT levels and concentrations of arsenic, cadmium (Cd), copper, mercury (Hg), manganese (Mn), molybdenum, lead, vanadium (V), and zinc (Zn), alongside biological variables, in black-browed albatrosses (Thalassarche melanophris) found stranded in southeastern Brazilian coast. Only Zn presented a positive relationship with hepatic MT levels through both correlation and linear regression analyses. Additionally, Zn was identified via generalized additive models (GAM) as the best predictor of MT variability, supporting the use of MT as biomarkers for Zn exposition in black-browed albatrosses. Other significant predictors of MT levels included hepatic concentrations of Cd, Hg, Mn, and V, as well as body mass, sex, and presence of solid debris in the gastrointestinal tract. GAM indicated complex non-linear relationships between MT levels and Cd, Hg and Zn concentrations. An initial positive association was observed between MT and Zn, reversing once Zn exceed ∼600 mg·kg−1 dw. The opposite was detected for Cd and Hg: initially, as concentration of both metals increases, MT levels tend to decrease, but rise again after reaching an inflexion point. These results suggest that multiple detoxification pathways may act in concert with MT, underscoring the need for integrative approaches to assess metal(loid)s stress in seabirds.”

Reference:

de Espindola da Silveira, G., dos Santos Lima, G., Pacheco Harrison Righetto, B., Lisarb Velasquez Bastolla, ., Mattos, J.J., Menegário, A.A., Celso Dias Bainy, A., Hahn Lüchmann, K., Serafini, P.P. 2026.  Relationships between metal(loid)s, biological variables and hepatic metallothionein levels in black-browed albatrosses (Thalassarche melanophris).  Marine Pollution Bulletin 226, 119378.

With thanks to Patricia Serafini.

John Cooper, Emeritus Information Officer, Agreement on the Conservation of Albatrosses and Petrels, 19 February 2026

Same-sex partnerships in birds: a review

Laysan Albatross Heart Pair Hob Osterlund"Heart". A pair of Laysan Albatrosses, photograph by Hob Osterlund

Natasha Gillies (Department of Earth, Ocean and Ecological Sciences, University of Liverpool, UK) and Katrina Siddiqi-Davies have reviewed same-sex partnerships in birds, including in Laysan Albatrosses Phoebastria immutabilis in the open access Journal of Avian Biology.

The paper’s abstract follows:

“Same-sex sexual behaviour (SSB), encompassing actions such as courtship, pair bonding, and parenting between individuals of the same sex, has been observed across numerous taxa, including birds. Yet despite its widespread occurrence, SSB remains poorly understood, often dismissed as maladaptive or the result of errors in sex discrimination. However, instances of same-sex partnerships – persistent pair bonds between same-sex individuals – challenge these assumptions, particularly in birds, whose diverse mating systems and high level of monogamy imposes strong selective pressures on pair formation and maintenance. This review synthesises our current knowledge of same-sex partnerships in birds, addressing their evolutionary origins, adaptive benefits, and broader ecological significance. We argue that the prevalence of same-sex partnerships has likely been underestimated, hindered both by historical biases in interpretation and, especially more recently, logistical challenges in data collection. Drawing on examples from across the avian class, we explore the potential reproductive and social benefits of same-sex partnerships. By reframing these behaviours as potentially adaptive rather than anomalous, we aim to advance understanding of their evolutionary persistence and encourage more systematic research into their occurrence and implications.”

Reference:

Gillies, N. & Siddiqi-Davies, K. 2026.  Same-sex partnerships in birds: a review of the current literature and a call for more data.  Journal of Avian Biology doi.org/10.1002/jav.03452.

John Cooper, Emeritus Information Officer, Agreement on the Conservation of Albatrosses and Petrels, 18 February 2026

The Mouse-Free Marion Project makes a Call for Expressions of Interest: Helicopter Services for an Aerial Baiting Trial during April-May 2027

Helicopter at Marion Otto WhiteheadA helicopter flies past the research station on Marion Island, photograph by Otto Whitehead

The Saving Marion Island’s Seabirds: The Mouse-Free Marion (MFM) Project has made a Call for Expressions of Interest: Helicopter Services for an Aerial Baiting Trial on Marion Island during April-May 2027.

LMSAnibbledPGR shrunkThis Light-mantled Albatross Phoebastria palpebrata chick was scalped at night by House Mice on Marion Island; it did not survive.  Photograph by Peter Ryan

“Marion Island — a sub-Antarctic island and part of South Africa’s only Special Nature Reserve — is facing a serious and escalating conservation crisis.  House Mice, accidentally introduced in the early 19th century, have in recent years begun preying on the island’s globally important populations of albatrosses and petrels.  This predation is increasing and is considered unsustainable, placing many seabird species at risk of local extinction.

The MFM Project has been established to eradicate invasive mice from the island and remove this threat.  The Project is a partnership between BirdLife South Africa and the South African Department of Forestry, Fisheries and the Environment.  The full eradication operation will involve a complex, island-wide aerial baiting programme and represents one of the most significant island restoration initiatives currently being undertaken globally.

As part of detailed planning and to ensure operational readiness for the main project, an aerial baiting trial (of approximately 1000 hectares) will be conducted on Marion Island in April–May 2027.  The trial is intended to evaluate key elements of the baiting strategy, test operational systems and equipment, and refine logistical coordination under Marion Island’s challenging conditions.  The operation will require the deployment of a single helicopter and a pilot with demonstrated aerial-baiting experience.

The MFM Project is therefore inviting Expressions of Interest from suitably qualified helicopter companies with the demonstrated technical experience and expertise and the operational capacity to undertake this trial in a remote, logistically complex, and environmentally demanding setting.”

The detailed Expression of Interest (EOI) document provides comprehensive information on Marion Island, the conservation challenge posed by invasive mice, the proposed eradication methodology, and the specific requirements for helicopter services for the aerial baiting trial.

Note this EOI relates specifically to the aerial baiting trial, not to the full eradication operation.

To request the EOI documentation contact This email address is being protected from spambots. You need JavaScript enabled to view it., MFM Project Manager and This email address is being protected from spambots. You need JavaScript enabled to view it., MFM Operations Manager.

The deadline for submission of Expressions of Interest is 27 March 2026.

John Cooper, Emeritus Information Officer, Agreement on the Conservation of Albatrosses and Petrels, 17 February 2026

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

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Hobart TAS 7000
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Email: secretariat@acap.aq
Tel: +61 3 6165 6674