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.

Contact the ACAP Communications Advisor if you wish to have your news featured.

Invasive predators cause greatest harm on islands

Tim Doherty (Centre for Integrative Ecology, Deakin University, Geelong, Australia;) and colleagues published last year in the Proceedings of the National Academy of the Sciences of the United States of America on a global analysis of the effects of invasive mammalian predators stating that “cats, rodents, dogs, and pigs have the most pervasive impacts, and endemic island faunas are most vulnerable to invasive predators”.

The paper’s abstract follows:

“Invasive species threaten biodiversity globally, and invasive mammalian predators are particularly damaging, having contributed to considerable species decline and extinction. We provide a global metaanalysis of these impacts and reveal their full extent. Invasive predators are implicated in 87 bird, 45 mammal, and 10 reptile species extinctions—58% of these groups’ contemporary extinctions worldwide. These figures are likely underestimated because 23 critically endangered species that we assessed are classed as “possibly extinct.” Invasive mammalian predators endanger a further 596 species at risk of extinction, with cats, rodents, dogs, and pigs threatening the most species overall. Species most at risk from predators have high evolutionary distinctiveness and inhabit insular environments. Invasive mammalian predators are therefore important drivers of irreversible loss of phylogenetic diversity worldwide. That most impacted species are insular indicates that management of invasive predators on islands should be a global conservation priority. Understanding and mitigating the impact of invasive mammalian predators is essential for reducing the rate of global biodiversity loss."

A globally Critically Endangered Tristan Albatross chick attacked by House Mice on Gough Island, photograph by Peter Ryan

Read more here.

Reference:

Doherty, T.S., Glen, A.S., Nimmo, D.G., Ritchie, E.G. & Dickman, C.R. 2016. Invasive predators and global biodiversity loss.  Proceedings of the National Academy of the Sciences of the United States of America 113: 11261–11265.

John Cooper, ACAP Information Officer, 31 August 2017

More news of ACAP’s Pterodroma workshop to be held in Wellington, New Zealand next month

ACAP will host a workshop on gadfly Pterodroma and other small burrowing petrels at the time of the Agreement’s meetings in Wellington, New Zealand next month. The Ninth Meeting of ACAP’s Advisory Committee (AC9) held in La Serena, Chile in May last year agreed to host the workshop with the main objective of advancing understanding about the best approaches for international cooperation in the conservation of the species to be considered.

Hawaiian Petrel, photograph by Andre Raine

An introduction to the workshop, along with its Terms of Reference, available as AC10 Doc 14, has now been joined online by an agenda for the one-day meeting and two background documents. One of these is a review commissioned by ACAP from BirdLife International entitled “Status, trends and conservation management needs of the Pterodroma and Pseudobulweria petrels” by Ben Lascelles, Rocio Moreno, Maria Dias and Cleo Small.   The review, which covers 39 extant species, will be presented to the workshop by Karen Baird of Forest & Bird, BirdLife's national partner in New Zealand. Although password protected the paper’s detailed summary and recommendations are open for reading. The second background paper reports on a survey of the distribution and status of gadfly petrel breeding colonies in New Zealand, covering 11 species and 253 different locations.

To find all the above documents visit the workshop page.

https://acap.aq/en/documents/workshops/workshop-on-pterodroma-and-other-small-burrowing-petrels

A report of the meeting, to be chaired by Mark Tasker of the UK, with ACAP's Information Officer acting as rapporteur, will be prepared for ultimate consideration by the next session of the ACAP Meeting of Parties, due to be held in 2018, with a summary report to ACAP’s 10th Advisory Committee which commences its meetings in Wellington two days after the workshop.

John Cooper, ACAP Information Officer, 30 August 2017

Lawsuit filed to prevent lights from killing Newell’s Shearwaters and Hawaiian Petrels on three Hawaiian islands

Two conservation groups represented by the nonprofit law firm Earthjustice have filed a lawsuit against the Hawaii Department of Transportation for failing to address the injuries and death to globally Endangered Newell’s Shearwaters Puffinus newelli and globally Vulnerable Hawaiian Petrels Pterodroma sandwichensis caused by bright lighting at state-operated airports and harbours on the Hawaiian islands of Kauai, Maui and Lānai. According to the lawsuit the transportation department’s failure to protect these Hawaiian endemic seabirds at its facilities violates the USA’s Endangered Species Act.

 

Newell's Shearwater, photograph by Eric Vanderwerf

“The seabirds are attracted to bright lights, like those at the department’s airport and harbor facilities. Indeed, those facilities are among the largest documented sources in the state of injury and death to the birds. The seabirds become disoriented and circle the lights until they fall to the ground from exhaustion or crash into nearby buildings. On Kauai, which is home to most of the threatened Newell’s shearwaters remaining on the planet, bright lights have contributed significantly to the catastrophic 94 percent decline in the Newell’s shearwater population since the 1990s. At the same time, Hawaiian petrel numbers on Kauai have plummeted by 78 percent. Remnant breeding populations of the imperiled seabirds cling to survival on Maui and Lānai” (click here).

Read more accounts in ACAP Latest News on threats and conservation activities relating to the two species here.

John Cooper, ACAP Information Officer, 29 August 2017

Necropsied Black-footed Albatross chicks contain more plastic than do adults

Dan Rapp (Hawaii Pacific University, Marine Science Programs at Oceanic Institute, Waimanalo, Hawaii, USA) and colleagues have published in the Marine Pollution Bulletin on ingested plastics in both chicks and adults of globally Near Threatened Black-footed Phoebastria nigripes and Laysan P. immutabilis Albatrosses and other seabirds at Hawaii’s French Frigate Shoals.

The paper’s abstract follows:

“Between 2006 and 2013, we salvaged and necropsied 362 seabird specimens from Tern Island, French Frigate Shoals, Northwestern Hawaiian Islands. Plastic ingestion occurred in 11 of the 16 species sampled (68.75%), representing four orders, seven families, and five foraging guilds: four plunge-divers, two albatrosses, two nocturnal-foraging petrels, two tuna-birds, and one frigatebird. Moreover, we documented the first instance of ingestion in a previously unstudied species: the Brown Booby. Plastic prevalence (percent occurrence) ranged from 0% to 100%, with no significant differences across foraging guilds. However, occurrence was significantly higher in chicks versus adult conspecifics in the Black-footed Albatross, one of the three species where multiple age classes were sampled. While seabirds ingested a variety of plastic (foam, line, sheets), fragments were the most common and numerous type. In albatrosses and storm-petrels, the plastic occurrence in the two stomach chambers (the proventriculus and the ventriculus) was not significantly different.”

 

Black-footed and Laysan Albatrosses, photograph courtesy of the Kure Atoll Conservancy

Reference:

Rapp, D.C., Youngren, S.M., Hartzell, P. & Hyrenbach, K.D. 2017. Community-wide patterns of plastic ingestion in seabirds breeding at French Frigate Shoals, Northwestern Hawaiian Islands. Marine Pollution Bulletin doi.org/10.1016/j.marpolbul.2017.08.047.

John Cooper, ACAP Information Officer, 28 August 2017

UPDATED. Second time lucky? Rat eradication has commenced by aerial bait drop on Hawaii’s Lehua Island

UPDATE: Get the whole story from island Conservation's Operation Lehua website.

Lehua is a small, crescent-shaped island situated a kilometre off the coast of Kauai in the USA’s Hawaiian Islands. Small numbers of Black-footed Phoebastria nigripes and Laysan P. immutabilis Albatrosses, both globally Near Threatened, have bred on Lehua since at least 2002. Large numbers of Wedge-tailed Shearwaters Ardenna pacifica also breed.  Lehua is managed as a State Seabird Sanctuary.

Lehua Island, photographs by Eric Vanderwerf

An attempt to rid the island of Pacific Rats Rattus exulans in 2009 was unsuccessful but now after study and discussion over several years and the issuing of the necessary permits the operation is being repeated. The first of three planned aerial drops of bait totalling 10 tons containing the first-generation anticoagulant rodenticide Diphacinone was undertaken this week, with the following drops expected in the next few weeks depending on the weather. Ground baiting was also undertaken.

“The [first stage of the] operation was executed as planned - successfully, safely, and under the close watch of regulators from the Hawaii Department of Agriculture and an independent monitoring team from the U.S. Department of Agriculture.” (click here).

Read more media reports here and here.

Read more on Lehua Island and its albatrosses in ACAP Latest News here.

View the Lehua Island Restoration Project Final Environmental Assessment for more information.

John Cooper, ACAP Information Officer, 25 August 2017, updated 26 August 2017

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