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THE ACAP MONTHLY MISSIVE. Who was Osbert Salvin whose name was given to Salvin’s Albatross?

Salvin Osbert 1835 1898
Osbert Salvin FRS (25 February 1835 - 1 June 1898)

Salvin’s Albatross Thalassarche salvini was named after the 19th Century English ornithologist and entomologist Osbert Salvin FRS by Lord Lionel Walter Rothschild in 1893 (as Thalassogeron salvini sp. nov.).  Rothschild renamed the bird, previously known as the Shy Albatross T. cauta, because “In coloration this species is apparently greyer on the head and neck, the dark loral mark in front of the eye being very conspicuous” (click here and see below).

Salvins Albatross Snares Paul Sagar 6
A Salvin’s Albatross on its nest on the Western Chain, Snares Islands, photograph by Paul Sagar

In 1874 Salvin was appointed as the first Strickland Curator at the University of Cambridge; three years previously he had become editor of the British Ornithologists’ Union (BOU) journal The Ibis, a position he held for a decade  He was a Fellow of the Royal Society, and also of the Linnean, Zoological and Entomological Societies, and at the time of his death was Secretary of the BOU.  The Godman-Salvin Medal, an award instituted by the BOU in 1919 as “a signal honour for distinguished ornithological work”, is named after him and Frederick DuCane Godman.  An interesting connection is that the medal was awarded over a century after Salvin’s death to the well-known albatross researcher and conservationist John P. Croxall CBE, FRS in 2004, who was actively involved with ACAP in its early years and chaired BirdLife International’s Global Seabird Programme.

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A signed photograph of Osbert Salvin in his later years

The globally Vulnerable and Nationally Critical Salvin’s Albatross is endemic to New Zealand, where it breeds on the sub-Antarctic Bounty Islands and the Snares Western Chain with an estimated total breeding population of around 52 000 pairs.  Alternative names appearing in the literature for Salvin’s Albatross include Bounty Island Albatross and Grey-backed Albatross (or Mollymawk), although both seem to be little used.Salvins Albatross KeulemansSalvin’s Albatross, by Dutch illustrator Johannes Gerardus Keulemans, from A History of the Birds of New Zealand by Walter Buller

This is the second in an occasional series that considers how eponymously named ACAP-listed albatrosses and petrels came to be named.  The first in the series addressed Buller’s Albatross T. bulleri.  The next in the series will be the on Black or Parkinson’s Petrel Procellaria parkinsoni.

Reference:

bulletinofbritis14unse 0088 

Rothschild, W. 1893.  THALASSOGERON SALVINI, sp. nov.  Bulletin of the British Ornithologists' Club 1(10): lviii.

John Cooper, Emeritus Information Officer, Agreement on the Conservation of Albatrosses and Petrels, 04 June 2024

Research on mercury concentrations in albatrosses and petrels reveals species-specific differences

BBA Bird Island Richard PhillipsMercury levels of body feathers of Black-browed Albatrosses (pictured) were tested as part of the study. Photo by Richard Phillips

William F. Mills (Department of Geography and Environmental Science, University of Reading, UK) and colleagues have published open access in the journal Archives of Environmental Contamination and Toxicology on variations in mercury levels in albatrosses and petrels in the South Atlantic.

Boxplots of total Hg concentrations feathers of albatrosses and petrels sampled Bird Island South GeorgiaFigure 1 from the paper: Boxplots of total Hg concentrations (µg g−1 dw) in body feathers of albatrosses and petrels sampled at Bird Island, South Georgia. Species abbreviations are as follows: BBA = black-browed albatross Thalassarche melanophris; NGP = northern giant petrel Macronectes halli; SGP = southern giant petrel M. giganteus; WA = wandering albatross Diomedea exulans; WCP = white-chinned petrel Procellaria aequinoctialis. Samples were collected from southern giant petrels in the 2011/2012 breeding season and from all other species in 2014/2015. Species sharing superscript letters are not significantly different according to post-hoc Tukey’s HSD tests. Boxplots show medians (horizontal lines), interquartile range (IQR; boxes), the lowest and highest values within 1.5 × IQR (whiskers) and outliers (black points)

The paper’s abstract follows:

“Mercury (Hg) is an environmental contaminant that can negatively impact the health of humans and wildlife. Albatrosses and large petrels show some of the highest levels of Hg contamination among birds, with potential repercussions for reproduction and survival. Here, body feather total Hg (THg) concentrations were determined in breeding adults of five species of albatrosses and large petrels in the foraging guild at South Georgia during the mid-2010s. We tested the effects of species, sex and trophic ecology (inferred from stable isotopes) on THg concentrations and compared our results with published values from past decades. Feather THg concentrations differed significantly among species (range: 1.9–49.6 µg g−1 dw), and were highest in wandering albatrosses Diomedea exulans, intermediate in black-browed albatrosses Thalassarche melanophris and northern giant petrels Macronectes halli, and lowest in southern giant petrels M. giganteus and white-chinned petrels Procellaria aequinoctialis. Females were more contaminated than males in all species, potentially due to differences in distributions and diet composition. Across species, THg concentrations were not correlated with feather δ13C or δ15N values, implying that species effects (e.g., breeding and moulting frequencies) may be more important than trophic effects in explaining feather THg concentrations in this foraging guild. Within species, the only significant correlation was between THg and δ13C in wandering albatrosses, which could reflect higher Hg exposure in subtropical waters. Comparisons with THg concentrations from past studies, which reflect contamination from 10 to > 60 years ago, revealed considerable annual variation and some evidence for increases over time for wandering and black-browed albatrosses since before 1950 and from the late 1980s, respectively.”

Reference:

Mills, W.F., Bustamante, P., Ramírez, F. et al. 2024.  Mercury Concentrations in Feathers of Albatrosses and Large Petrels at South Georgia: Contemporary Patterns and Comparisons with Past Decades.  Arch Environ Contam Toxicol 86: 363-374 . https://doi.org/10.1007/s00244-024-01067-9

03 June 2024

Last days for Amsterdam Island’s rats and mice? The eradication project gets underway

Norway Rat Amsterdam 2
A trapped Norway Rat on Amsterdam Island, photograph by Thomas Goisque

The eradication of Norway Rats Rattus norvegicus and House Mice Mus musculus has commenced in earnest on France’s sub-Antarctic Amsterdam Island in the southern Indian Ocean.  Preparations on the island by the project RECI (Restauration des écosystèmes insulaires de l’océan Indien; Restoration of Insular Ecosystems of the Indian Ocean) started around April this year, with the aerial drop of rodenticide cereal bait due to have commenced before the end of May, according to the Facebook page of Terres australes et antarctiques françaises (TAAF).

Eradication Amsterdam 6 Lucie Pichot
Collecting apples in the
Cratère Antonelli, photograph by Lucie Pichot

Eradication Amsterdam 4 Lucie Pichot
Test loading the bucket, photograph by Lucie Pichot

Initial activities have included setting up photographic traps, installing grids to guide manual bait spreading in and around the Martin-de-Viviès scientific station and at Point Benedict, collecting apples in the Cratère Antonelli to limit a food source for rodents, and a field test of loading the bait spreader.

Herbivorie de de la souris grise sur des capsules de Phylica arborea Florian Leemann
A House Mouse feeds on a fruit of the dwarf tree
Phylica arborea on Amsterdam Island, photograph by Florian Leemann

Amsterdam Island’s Norway Rats have been suspected of being a carrier for the bacterium Pasteurella multocida, responsible for avian cholera which kills chicks of the globally Endangered Indian Yellow-nosed Albatross Thalassarche carteri, on the island, of which two- thirds of the world population breeds on Amsterdam’s Entrecasteaux Cliffs.

Cat Amsterdam
Already gone?  Feral cats on Amsterdam Island have been a target of RECI by trapping and shooting, photograph by
Mathias Régnier

Read more about the Amsterdam eradication here, here and here.  “Eradicating Island Pests” was ACAP's theme for the inaugural World Albatross Day on 19 June 2020.

John Cooper, Emeritus Information Officer, Agreement on the Conservation of Albatrosses and Petrels, 31 May 2024

Celebrating 10 years of pest eradication at Australia’s Macquarie Island

 BBA Melanie Wells
A Black-browed Albatross on Macquarie Island, photograph by Melanie Wells

Nick Duigan, Tasmanian Minister for Parks and Environment and Tanya Plibersek, Federal Minister for the Environment and Water have issued a joint communique to mark a decade of Autralia’s sub-Antarctic Macquarie Island being free of introduced vertebrates.  The media release text follows:

“In April 2014, a major project to eradicate all rabbits and rodents from Macquarie Island was officially declared a success.  Ten years on, the island is showing remarkable signs of recovery, with lush vegetation lining its once barren slopes and the return of breeding seabirds such as burrowing petrels.  Macquarie Island is located halfway between Tasmania and Antarctica.  It is one of Australia’s most significant conservation reserves and listed as a UNESCO World Heritage Area.

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A view of Macquarie Island, photograph by Aleks Terauds

Planning for the Macquarie Island Pest Eradication Project began in 2007 with the aim of removing three introduced pest species – rabbits, rats and mice – and restoring the island’s outstanding natural values.  The [AU]$24 million project was co-funded by the Tasmanian and Australian Governments and managed by Tasmania Parks and Wildlife Service with the assistance of the Australian Antarctic Division.  Tasmanian Government Minister for Parks and Environment, Nick Duigan, said it was the most ambitious pest eradication program conducted in the state’s history.

“The introduction of rabbits, rats and mice to Macquarie Island had devastating impacts on the island’s natural wildlife and ecology,” Minister Duigan said “Overgrazing by rabbits caused extensive loss of vegetation cover, destroying the breeding grounds of nesting seabirds and triggering widespread erosion.  Rats preyed on seabird eggs and chicks, while mice ate insects, worms and other invertebrates, disturbing the ecological balance of the island.

“Following years of meticulous planning, the Macquarie Island Pest Eradication teams of 2011 and 2012 successfully rid the island of all three targeted species.  This remarkable outcome is testament to the tireless efforts of the rangers, baiters, hunters and their support crews who delivered the program in remote and challenging conditions.  We thank them for their contributions.  We also acknowledge Tasmania Parks and Wildlife Service for its ongoing management and preservation of the outstanding universal values of Macquarie Island.”

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No longer a problem.  Denudation and erosion caused by European Rabbits on Macquarie Island, photograph by Aleks Terauds

Federal Minister for the Environment and Water Tanya Plibersek said the eradication of rabbits and rodents had huge benefits for threatened species on the island.

“Macquarie Island is a wildlife wonderland – home to millions of penguins, seals and seabirds. It is fantastic to see the island’s plants and animals thrive 10 years after the eradication of rabbits and rodents.  “The increase in vegetation cover has improved breeding habitat for albatross and the eradication of rodent predators has seen burrowing petrels flourish.  The long-term benefits and impacts of the pest eradication program will continue to be monitored through the 10-year Macquarie Island Wildlife Monitoring Program.”

“This project will assess wildlife populations on Macquarie Island so we get an accurate snapshot and monitor trends over time.  The data will allow us to better protect this exceptional place for our kids and grandkids.

“This is a great example of our government’s commitment to restore damaged landscapes and shows what marvellous results can be achieved.  The Australian Government also announced in this month’s budget we will rebuild the station on Macquarie Island to continue world-leading science like this.”

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Trained dogs were used to help eradicate European Rabbits, Black Rats and House Mice on Macquarie Island, p
hotograph by Tasmania Parks and Wildlife Service

Macquarie Island has a long history of battling the impacts of introduced pests.  The island was discovered by sealers in 1810, and they brought with them cats, dogs and rodents.  From the 1860s they introduced rabbits and Weka as a food source.  Weka were eradicated in 1989 and feral cats were eradicated by 2000, but rabbits, mice and rats continued to thrive.

 By the mid-2000s, the rabbit population was estimated to exceed 125,000.  After extensive planning and research, calicivirus was introduced to Macquarie Island in February 2011 and proved very effective, killing an estimated 80-90 per cent of the rabbit population in a few weeks. This was followed by an aerial baiting programme in the winter 2011.  The last rabbit was recorded on the island in November 2011, and after three years of intensive patrolling by conservation dogs and their handlers, the project was declared a success in 2014.

Read video interviews here and here on the island's recovery.

John Cooper, Emeritus Information Officer, Agreement on the Conservation of Albatrosses and Petrels, 30 May 2024

Celebrating 20 years of seabird conservation: ACAP highlights achievements and future challenges

Jacket ACAP 20 Year Anniversary Booklet English Digital 1.1

The Agreement on the Conservation of Albatrosses and Petrels (ACAP) marked a significant milestone this year on the 1 February, celebrating 20 years since coming into force in 2004.

To mark this occasion, ACAP has released a special booklet, Agreement on the Conservation of Albatrosses and Petrels: Achievements in the First 20 Years 2004-2024, chronicling its journey and achievements of the past two decades.

ACAP Notable Achievements 20 Year Anniversary Booklet 1

The booklet serves as both a celebration of ACAP’s accomplishments and a call to action for future endeavours. It highlights the vital work done by Parties, researchers, non-Party Range States, Non- Governmental Organisations (NGOs) and other entities to protect these incredible seabirds. Additionally, it emphasises the need for continued international collaboration, innovative research, and the implementation of robust conservation measures to ensure a future for the 31 species listed under the Agreement.

ACAP Notable Achievements 20 Year Anniversary Booklet 2

Speaking about the booklet’s release, ACAP’s Executive Secretary, Dr Christine Bogle said, "The commemorative booklet serves as a testament to ACAP's collective dedication in safeguarding the world's albatrosses and petrels. It not only celebrates our past achievements but also ignites a renewed commitment towards a future where these majestic seabirds thrive."

ACAP would like to thank Graphic Designer, David Mackenzie, for producing the booklet, and the many photographers who have contributed to the booklet with their incredible images.

Achievements in the First 20 Years: 2004-2024 is now available to download from the ACAP website in ACAP's three official languages, English, French and Spanish.

28 May 2024

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