Census of the Black-Browed Albatross Population of the Falkland Islands 2000 and 2005
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Plumage Variation and Hybridization in Black-Footed and Laysan Albatrosses
PlumaDevariation and hybridizationin Black-footedand LaysanAlbatrosses Tristan McKee P.O. Box631 Ferndale,California 95536 (eraall:bertmckee•yahoo.com) PeterPyle 4990Shoreline Highway SUnsonBeach, California 94970 (email:[email protected]) INTRODUCTION Black-footed(Phoebastria nigripes) and Laysan (P. immutabilis) Albatrosses nest sideby sidein denseisland colonies. Their breeding populations center in the northwesternHawaiian Islands, with smaller colonies scattered across the subtrop- icalNorth Pacific. Both species visit nutrient-rich waters off the west coast of North Americathroughout the year to forage. Black-footeds concentrate in coastal waters fromnorthern California tosouthern Alaska, while Laysans frequent more offshore andnortherly waters in thisregion. Bkders on pelagic trips off the West Coast often encountersignificant numbers of oneor bothof thesespecies, and searching for other,rarer albatrosses among them has proven to be a worthwhile pursuit in recen! years(Stallcup and Terrill 1996, Cole 2000). Albatrossesidentified as Black-looted x Laysan hybrids have been seen and studiedon MidwayAtoll and other northwestern Hawaiian Islands since the late 1800s(Rothschild 1900, Fisher 1948, 1972). In addition,considerable variation in appearanceis found within both species, indMduals with strikinglyaberrant plumageand soft part colors occasionally being encountered (Fisher 1972, Whittow 1993a).Midway Atoll hosts approximately two-thirds of the world'sbreeding A presumedhybrid Laysan x Black-lootedAlbatross tends a chickat Midway LaysanAlbatrosses -
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Vol. 651: 163–181, 2020 MARINE ECOLOGY PROGRESS SERIES Published October 1 https://doi.org/10.3354/meps13439 Mar Ecol Prog Ser OPEN ACCESS Habitat preferences, foraging behaviour and bycatch risk among breeding sooty shearwaters Ardenna grisea in the Southwest Atlantic Anne-Sophie Bonnet-Lebrun1,2,3,8,*, Paulo Catry1, Tyler J. Clark4,9, Letizia Campioni1, Amanda Kuepfer5,6,7, Megan Tierny6, Elizabeth Kilbride4, Ewan D. Wakefield4 1MARE − Marine and Environmental Sciences Centre, ISPA - Instituto Universitário, Rua Jardim do Tabaco 34, 1149-041 Lisboa, Portugal 2Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK 3Centre d’Ecologie Fonctionnelle et Evolutive CEFE UMR 5175, CNRS — Université de Montpellier - Université Paul-Valéry Montpellier — EPHE, 34293 Montpellier cedex 5, France 4Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK 5FIFD — Falkland Islands Fisheries Department, Falkland Islands Government, PO Box 598, Stanley, Falkland Islands, FIQQ 1ZZ, UK 6SAERI — South Atlantic Environmental Research Institute, Stanley, Falkland Islands, FIQQ 1ZZ, UK 7Environment and Sustainability Institute, University of Exeter, Penryn Campus, Penryn TR10 9FE, UK 8Present address: British Antarctic Survey, High Cross, Madingley Road, Cambridge CB4 0ET, UK 9Present address: Wildlife Biology Program, Department of Ecosystem and Conservation Sciences, W.A. Franke College of Forestry and Conservation, University of Montana, 32 Campus Drive, Missoula, Montana 59812, USA ABSTRACT: Pelagic seabirds are important components of many marine ecosystems. The most abundant species are medium/small sized petrels (<1100 g), yet the sub-mesoscale (<10 km) distri- bution, habitat use and foraging behaviour of this group are not well understood. Sooty shearwaters Ardenna grisea are among the world’s most numerous pelagic seabirds. -
Tube-Nosed Seabirds) Unique Characteristics
PELAGIC SEABIRDS OF THE CALIFORNIA CURRENT SYSTEM & CORDELL BANK NATIONAL MARINE SANCTUARY Written by Carol A. Keiper August, 2008 Cordell Bank National Marine Sanctuary protects an area of 529 square miles in one of the most productive offshore regions in North America. The sanctuary is located approximately 43 nautical miles northwest of the Golden Gate Bridge, and San Francisco California. The prominent feature of the Sanctuary is a submerged granite bank 4.5 miles wide and 9.5 miles long, which lay submerged 115 feet below the ocean’s surface. This unique undersea topography, in combination with the nutrient-rich ocean conditions created by the physical process of upwelling, produces a lush feeding ground. for countless invertebrates, fishes (over 180 species), marine mammals (over 25 species), and seabirds (over 60 species). The undersea oasis of the Cordell Bank and surrounding waters teems with life and provides food for hundreds of thousands of seabirds that travel from the Farallon Islands and the Point Reyes peninsula or have migrated thousands of miles from Alaska, Hawaii, Australia, New Zealand, and South America. Cordell Bank is also known as the albatross capital of the Northern Hemisphere because numerous species visit these waters. The US National Marine Sanctuaries are administered and managed by the National Oceanic and Atmospheric Administration (NOAA) who work with the public and other partners to balance human use and enjoyment with long-term conservation. There are four major orders of seabirds: 1) Sphenisciformes – penguins 2) *Procellariformes – albatross, fulmars, shearwaters, petrels 3) Pelecaniformes – pelicans, boobies, cormorants, frigate birds 4) *Charadriiformes - Gulls, Terns, & Alcids *Orders presented in this seminar In general, seabirds have life histories characterized by low productivity, delayed maturity, and relatively high adult survival. -
Species List for Svalbard Birds and Mammals
Falkland Islands Circumnavigation – A South Atlantic bird & wildlife spectacle Falkland Islands There is no other groups of islands in the entire Atlantic Ocean which allows fairly easy access to such a diversity of spectacular bird species under such a mild climate and with such a variety of marine mammals thrown in. The Falkland Islands are known to most people today more for their recent political history than their natural history. And even to many nature lovers, the Falklands are often seen as secondary compared to the neighbouring Antarctica and South Georgia. This voyage aims to set the record straight: The Falkland Islands are worth every minute of a two-week circumnavigation, and they will provide us with a long string of wonderful encounters with penguins (4-5 species), albatrosses, cormorants, ducks and geese, raptors, shore birds, song birds and more – as well as seals and sea lions, whales and dolphins. We will see a variety of the islands’ unique landscapes of rolling hills, stone runs, rugged shorelines, pristine white beaches and lush giant kelp beds. We will see the endemic bird species and several near-endemic ones as well, and we intend to visit the southern hemisphere’s largest albatross colony on Steeple Jason. There will be time enough to allow for prolonged visits to the most magnificent of the sites during the best of the weather conditions. The group will be small enough to allow for great flexibility and individual attention. Tour Description Dates: December 3 - 17, 2016. Price: Starting at US$ 8.500,- Group size: Minimum 8, maximum 11. -
Biodiversity: the UK Overseas Territories. Peterborough, Joint Nature Conservation Committee
Biodiversity: the UK Overseas Territories Compiled by S. Oldfield Edited by D. Procter and L.V. Fleming ISBN: 1 86107 502 2 © Copyright Joint Nature Conservation Committee 1999 Illustrations and layout by Barry Larking Cover design Tracey Weeks Printed by CLE Citation. Procter, D., & Fleming, L.V., eds. 1999. Biodiversity: the UK Overseas Territories. Peterborough, Joint Nature Conservation Committee. Disclaimer: reference to legislation and convention texts in this document are correct to the best of our knowledge but must not be taken to infer definitive legal obligation. Cover photographs Front cover: Top right: Southern rockhopper penguin Eudyptes chrysocome chrysocome (Richard White/JNCC). The world’s largest concentrations of southern rockhopper penguin are found on the Falkland Islands. Centre left: Down Rope, Pitcairn Island, South Pacific (Deborah Procter/JNCC). The introduced rat population of Pitcairn Island has successfully been eradicated in a programme funded by the UK Government. Centre right: Male Anegada rock iguana Cyclura pinguis (Glen Gerber/FFI). The Anegada rock iguana has been the subject of a successful breeding and re-introduction programme funded by FCO and FFI in collaboration with the National Parks Trust of the British Virgin Islands. Back cover: Black-browed albatross Diomedea melanophris (Richard White/JNCC). Of the global breeding population of black-browed albatross, 80 % is found on the Falkland Islands and 10% on South Georgia. Background image on front and back cover: Shoal of fish (Charles Sheppard/Warwick -
Integrating Habitat and Partial Survey Data to Estimate the Regional Population of a Globally Declining Seabird Species, the Sooty Shearwater
Global Ecology and Conservation 17 (2019) e00554 Contents lists available at ScienceDirect Global Ecology and Conservation journal homepage: http://www.elsevier.com/locate/gecco Original Research Article Integrating habitat and partial survey data to estimate the regional population of a globally declining seabird species, the sooty shearwater * Tyler J. Clark a, , 1, Jason Matthiopoulos a, Anne-Sophie Bonnet-Lebrun b, c, Letizia Campioni d, Paulo Catry d, Ilaria Marengo e, Sally Poncet f, Ewan Wakefield a a Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, G12 8QQ, UK b Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK c Centre d’Ecologie Fonctionnelle et Evolutive CEFE UMR 5175, CNRS - Universite de Montpellier - Universite Paul-Valery Montpellier e EPHE, France d MARE e Marine and Environmental Sciences Centre, ISPA - Instituto Universitario, 1149-041, Lisboa, Portugal e SAERI - South Atlantic Environmental Research Institute, Stanley, Falkland Islands, FIQQ 1ZZ, UK f The Antarctic Research Trust, Stanley, Falkland Islands, FIQQ 1ZZ, UK article info abstract Article history: Many animal populations are thought to be in flux due to anthropogenic impacts. How- Received 21 November 2018 ever, censusing organisms to understand such changes is often impractical. For example, Accepted 3 February 2019 while it is thought that over half of pelagic seabird populations are declining, most breed in burrows or on cliffs, in large, remote colonies, making them difficult to count. Burrow- Keywords: nesting sooty shearwaters (Ardenna grisea) are abundant but declining in their core (South Ardenna grisea Pacific) breeding range, potentially due to introduced rodents and habitat loss. In contrast, Burrowing petrels Kidney Island, their largest colony in the Falkland Islands (Southwest Atlantic), purportedly Habitat preference Puffinus griseus grew by several orders of magnitude since the mid-1900s. -
LAYSAN ALBATROSS Phoebastria Immutabilis
Alaska Seabird Information Series LAYSAN ALBATROSS Phoebastria immutabilis Conservation Status ALASKA: High N. AMERICAN: High Concern GLOBAL: Vulnerable Breed Eggs Incubation Fledge Nest Feeding Behavior Diet Nov-July 1 ~ 65 d 165 d ground scrape surface dip fish, squid, fish eggs and waste Life History and Distribution Laysan Albatrosses (Phoebastria immutabilis) breed primarily in the Hawaiian Islands, but they inhabit Alaskan waters during the summer months to feed. They are the 6 most abundant of the three albatross species that visit 200 en Alaska. l The albatross has been described as the “true nomad ff Pok e of the oceans.” Once fledged, it remains at sea for three to J ht ig five years before returning to the island where it was born. r When birds are eight or nine years old they begin to breed. y The breeding season is November to July and the rest of Cop the year, the birds remain at sea. Strong, effortless flight is commonly seen in the southern Bering Sea, Aleutian the key to being able to spend so much time in the air. The Islands, and the northwestern Gulf of Alaska. albatross takes advantage of air currents just above the Nonbreeders may remain in Alaska throughout the year ocean's waves to soar in perpetual fluid motion. It may not and breeding birds are known to travel from Hawaii to flap its wings for hours, or even for days. The aerial Alaska in search of food for their young. Albatrosses master never touches land outside the breeding season, but have the ability to concentrate the food they catch and it does rest on the water to feed and sleep. -
Vocal Communication of Falkland Skuas
Simona Sanvito and Filippo Galimberti Elephant Seal Research Group Vocal communication of Falkland skuas Project report - 2016/2017 Address for correspondence: Dr. Simona Sanvito, ESRG, Sea Lion Island, Falkland Islands; Phone +500 32010, Fax +500 32003 Email [email protected] www.eleseal.org Summary The Falklands skua is an important, but understudied, component of the Falklands marine megafauna and biodiversity. We carried out field work on skuas at different locations in the Falkland Islands (Sea Lion Island, Carcass Is., Saunders Is., Bleaker Is., Pebble Is. and Islet, and Steeple Jason Is.) during the 2016-2017 breeding season. We recorded skuas vocalizations in all studied sites, to follow up our project on vocal communication started in 2014 at Sea Lion Island, and we also collected preliminary data on nests location and habitat, and spatial distribution at large, at the different sites. In this report, we present the results of the field work, we summarize the nesting and breeding data, and we present some preliminary findings about the communication study. We found that skuas are actually breeding in places where they were not known to do so (e.g., Pebble Is.), and in some places we found a spatial distribution quite different from what we expected, based on traditional knowledge (e.g., at Carcass Is.). We observed a large variation in the timing of breeding between the islands. We confirmed that skuas have a complex vocal communication system, that there is individual variation in vocal behaviour and vocal reactivity of different individuals, and that calls have important individual features. We also drafted a preliminary vocal repertoire for the species, and we found that the contact call seems to be the best part of the repertoire to study individual recognition. -
Albatross Or Mōlī (Phoebastria Immutabilis) Black-Footed Albatross Or Ka’Upu (Phoebastria Nigripes) Short-Tailed Albatross (Phoebastria Albatrus)
Hawaiian Bird Conservation Action Plan Focal Species: Laysan Albatross or Mōlī (Phoebastria immutabilis) Black-footed Albatross or Ka’upu (Phoebastria nigripes) Short-tailed Albatross (Phoebastria albatrus) Synopsis: These three North Pacific albatrosses are demographically similar, share vast oceanic ranges, and face similar threats. Laysan and Black-footed Albatrosses nest primarily in the Northwestern Hawaiian Islands, while the Short-tailed Albatross nests mainly on islands near Japan but forages extensively in U.S. waters. The Short-tailed Albatross was once thought to be extinct but its population has been growing steadily since it was rediscovered in 1951 and now numbers over 3,000 birds. The Laysan is the most numerous albatross species in the world with a population over 1.5 million, but its trend has been hard to determine because of fluctuations in number of breeding pairs. The Black-footed Albatross is one-tenth as numerous as the Laysan and its trend also has been difficult to determine. Fisheries bycatch caused unsustainable mortality of adults in all three species but has been greatly reduced in the past 10-20 years. Climate change and sea level rise are perhaps the greatest long-term threat to Laysan and Black-footed Albatrosses because their largest colonies are on low-lying atolls. Protecting and creating colonies on higher islands and managing non-native predators and human conflicts may become keys to their survival. Laysan, Black-footed, and Short-tailed Albatrosses (left to right), Midway. Photos Eric VanderWerf Status -
The Sea Lion Islands: a Chronological History
The Sea Lion Islands: A Chronological History D. Bailey, Historian in Residence, 2019 Sea Lion Island is the most Southerly occupied Island in the Falklands archipelago and is the largest of the ‘Sea Lion Islands’ group. They first appear named on a map of ‘Hawkins Maidenland’ in 1689 and have been known as the Sea Lion Islands since. Not a great deal is known about Sea Lion Island’s history between its discovery and the mid- nineteenth century but it is safe to assume that the bountiful stocks of seals and sea lions were brutally exploited by the many (predominantly American) sealers visiting the Falklands to take advantage of their lack of protection. In terms of ownership, the islands are first mentioned included in a grant issued to Alexander Ross and Samuel Lafone (who lent his name to Lafonia) in 1846. In their early prospectus (1849) they mention the islands’ use for the profitable sealing industry that had been steadily wiping out the populations on the islands for the best part of a hundred years. The Sea Lion Islands are referred to as being “favourite resorts of these valuable animals” but it was later noted that “…Hitherto, these valuable rookeries have been so much poached by French and American adventurers and fished in so indiscriminate a manner, that on some of the best grounds the animals are becoming shy and scarce;…” As with many of the Falkland Islands, Sea Lion Island does have a rich maritime history often linked either to the perilous waters around Cape Horn or to the shallow reefs off the island itself. -
Species List
Antarctica Trip Report November 30 – December 18, 2017 | Compiled by Greg Smith With Greg Smith, guide, and participants Anne, Karen, Anita, Alberto, Dick, Patty & Andy, and Judy & Jerry Bird List — 78 Species Seen Anatidae: Ducks, Geese, and Swans (8) Upland Goose (Chloephaga picta) Only seen on the Falklands, and most had young or were on nests. Kelp Goose (Chloephaga hybrid) On the beach (or close to the beach) at West Point and Carcass Islands. Ruddy-headed Goose (Chloephaga rubidiceps) Mixed in with the grazing Upland Geese on the Falklands. Flightless Steamer Duck (Tachyeres pteneres) Found on both islands that we visited, and on Stanley. Crested Duck (Lophonetta specularioides) Not common at all with only a few seen in a pond on Carcass Island. Yellow-billed (Speckled) Teal (Anas flavirostris) Two small flocks were using freshwater ponds. Yellow-billed Pintail (Anas georgica) Fairly common on South Georgia. South Georgia Pintail (Anas georgica georgica) Only on South Georgia and seen on every beach access. Spheniscidae: Penguins (7) King Penguin (Aptenodytes patagonicus) Only on South Georgia and there were thousands and thousands. Gentoo Penguin (Pygoscelis papua) Not as many as the Kings, but still thousands. Magellanic Penguin (Spheniscus magellanicus) Only on the Falklands and not nearly as common as the Gentoo. Macaroni Penguin (Eudyptes chrysolophus) Saw a colony at Elsihul Bay on South Georgia. Southern Rockhopper Penguin (Eudyptes chrysocome) A nesting colony among the Black-browed Albatross on West Point Island. Adelie Penguin (Pygoscelis adeliae) Landed near a colony of over 100,000 pairs at Paulet Island on the Peninsula. Chinstrap Penguin (Pygoscelis antarcticus) Seen on the Peninsula and we watched a particularly intense Leopard Seal hunt and kill a Chinstrap. -
BLACK-BROWED ALBATROSS THALASSARCHE Melanophrys FEEDING on a WILSON’S STORM-PETREL OCEANITES OCEANICUS
Seco Pon & Gandini: Wilson’s Storm-Petrel consumed by albatross 77 BLACK-BROWED ALBATROSS THALASSARCHE melanophrys FEEDING ON A WILSON’S STORM-PETREL OCEANITES OCEANICUS JUAN P. SECO PON1,2 & PATRICIA A. GANDINI1,3 1Centro de Investigaciones de Puerto Deseado, Universidad Nacional de la Patagonia Austral–Unidad Académica Caleta Olivia, cc 238 Av. Prefectura, s/n (9050), Puerto Deseado Santa Cruz, Argentina ([email protected]) 2Current address: Av. Colón 1908 8o L, Mar del Plata (7600), Buenos Aires, Argentina 3Consejo Nacional de Investigaciones Científicas y Técnicas and Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, New York, New York, 10460, USA Received 4 April 2007, accepted 10 November 2007 The diet of Black-browed Albatross Thalassarche melanophrys has in the stomachs of albatrosses. Although in general, penguins tend been studied at several sub-Antarctic colonies (e.g. Ridoux 1994, to be recorded more frequently, prions Pachyptila spp. and diving- Reid et al. 1996, Xavier et al. 2003) and found to consist mainly of petrels Pelecanoides spp. also occur in the diet of albatrosses in the fish, cephalopods and crustaceans. Although this albatross species Southern Ocean. Thus, the occurrence of small seabirds, such as travels vast distances during the non-breeding season (Croxall the Wilson’s Storm-Petrel, in the diet of Black-browed Albatrosses & Wood 2002), the types of food taken remain similar, although is not surprising. prey species and percentages tend to vary (Xavier et al. 2003, Gandini et al. unpubl.). Nevertheless, other prey items—such ACKnowledgements as seabirds, chiefly Spheniscidae and Pelecanoididae (Cherel & Klages 1997) and terns Sterna spp.