Status Assessment of Laysan and Black-Footed Albatrosses, North Pacific Ocean, 1923-2005

Arata, Javier; Sievert, Paul R.; Naughton, Maura B.

doi:10.3133/sir20095131

Cited by 36 publications

(47 citation statements)

References 63 publications

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“…Recent counts of Laysan albatross at Midway, Laysan, and Tern Island in the NWHI, which account for ∼93% of the global population, have reported stable or growing numbers of breeding birds (Arata et al , 2009) and the appearance of new colonies may be related to this growth. In the wandering albatross Diomedea exulans , juvenile dispersal is density dependent, leading to higher juvenile dispersal when the local population density is high (Inchausti & Weimerskirch, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…Despite reports of high natal philopatry, in the 1970's Laysan albatross began colonizing islands from Japan to Mexico and expanding their range beyond the north‐western Hawaiian Islands (NWHI) where 97% of the species currently nest (Naughton, Romano & Zimmerman, 2007; Arata, Sievert & Naughton, 2009). Many of these colonization events were re‐colonizations of anthropogenically extirpated breeding colonies such as those on Mukojima, Japan (Kurara, 1978), Wake Island in the Western Pacific, and Lehua, Oahu and Kauai in the main Hawaiian Islands (Zeillemaker & Ralph, 1977; VanderWerf et al , 2007; Young et al ., 2009 a,b ).…”

Section: Introductionmentioning

confidence: 99%

“…Flint, pers. comm., Arata et al ., 2009). As a result of the loss of breeding habitat that coincided with the range expansion and re‐colonization events, it has been hypothesized that climate‐driven displacement was in fact responsible for the appearance of these new Laysan albatross colonies, rather than a low level of natural dispersal that went undetected in mark–recapture studies.…”

Section: Introductionmentioning

confidence: 99%

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Inferring colonization history and dispersal patterns of a long‐lived seabird by combining genetic and empirical data

Young

2010

Journal of Zoology

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Identifying biological trends and threats to organisms that make long distance migrations are often the limiting factors in their conservation. Indeed, Laysan albatross Phoebastria immutabilis are highly vagile seabirds, foraging throughout the North Pacific Ocean. Despite mark-recapture data indicating natal philopatry, Laysan albatross recently re-colonized several anthropogenically extirpated breeding locations. At the same time, a breeding population in the north-western Hawaiian Islands was lost to erosion and it was hypothesized that the colonization events were due to displacement rather than dispersal. Nuclear and mitochondrial markers were used in a range wide survey to test whether natal philopatry corresponded to population structure in Laysan albatross, and to determine whether recent colonization events were a result of displacement from vanishing breeding habitat. Five microsatellite loci found little population structure (F ST = 0.01, P= 0.001), and sequences from the mitochondrial control region revealed low population structure (p ST = 0.05, Po0.001). The results were consistent with male-mediated dispersal and strong, but not absolute, philopatry by females. Mixed stock analyses and banding records from the newly colonized sites indicated contributions from multiple source populations, which contradicted the displacement hypothesis of a single source population and instead supported species-wide dispersal from all source colonies. High genetic diversity (p= 0.045, h = 0.989), rapid colonization, and great dispersal potential bode well for the conservation of Laysan albatross. However, it may be necessary to protect highisland nesting sites, preserve genetic diversity and maintain breeding populations in the face of projected sea level rises and persistent bycatch.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inferring colonization history and dispersal patterns of a long‐lived seabird by combining genetic and empirical data

Young

2010

Journal of Zoology

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“…Before the beginning of exploitation, the Laysan Albatross colony on Laysan Island alone may have been as large as two million birds, but by the 1920s the total population in the Hawaiian Islands had fallen to perhaps less than 20,000 pairs (Arata et al 2009). …”

Section: Disturbancementioning

confidence: 98%

“…While albatrosses earned the bemused respect of servicemen during the conflict (Ford 1942), thousands were buried alive by bulldozers or clubbed to reduce the threats to naval flight operations (Woodbury in Fisher 1949). Arata et al (2009) summarized reports of 92,000 Laysan and 7,500 Black-foots killed in aircraft operations or associated control efforts. Domestic dogs (Canis familiaris) were allowed to run through the albatross colony and adult Sooty Terns (Sterna fuscata) were clubbed and their eggs crushed (King 1973).…”

Section: Disturbancementioning

confidence: 99%

Changing Seabird Management in Hawai'i: from Exploitation through Management to Restoration

Duffy¹

2010

Waterbirds

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Lessons from the Tōhoku tsunami: A model for island avifauna conservation prioritization

Reynolds

Berkowitz

Klavitter

et al. 2017

Ecology and Evolution

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Earthquake‐generated tsunamis threaten coastal areas and low‐lying islands with sudden flooding. Although human hazards and infrastructure damage have been well documented for tsunamis in recent decades, the effects on wildlife communities rarely have been quantified. We describe a tsunami that hit the world's largest remaining tropical seabird rookery and estimate the effects of sudden flooding on 23 bird species nesting on Pacific islands more than 3,800 km from the epicenter. We used global positioning systems, tide gauge data, and satellite imagery to quantify characteristics of the Tōhoku earthquake‐generated tsunami (11 March 2011) and its inundation extent across four Hawaiian Islands. We estimated short‐term effects of sudden flooding to bird communities using spatially explicit data from Midway Atoll and Laysan Island, Hawai'i. We describe variation in species vulnerability based on breeding phenology, nesting habitat, and life history traits. The tsunami inundated 21%–100% of each island's area at Midway Atoll and Laysan Island. Procellariformes (albatrosses and petrels) chick and egg losses exceeded 258,500 at Midway Atoll while albatross chick losses at Laysan Island exceeded 21,400. The tsunami struck at night and during the peak of nesting for 14 colonial seabird species. Strongly philopatric Procellariformes were vulnerable to the tsunami. Nonmigratory, endemic, endangered Laysan Teal (Anas laysanensis) were sensitive to ecosystem effects such as habitat changes and carcass‐initiated epizootics of avian botulism, and its populations declined approximately 40% on both atolls post‐tsunami. Catastrophic flooding of Pacific islands occurs periodically not only from tsunamis, but also from storm surge and rainfall; with sea‐level rise, the frequency of sudden flooding events will likely increase. As invasive predators occupy habitat on higher elevation Hawaiian Islands and globally important avian populations are concentrated on low‐lying islands, additional conservation strategies may be warranted to increase resilience of island biodiversity encountering tsunamis and rising sea levels.

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Status Assessment of Laysan and Black-Footed Albatrosses, North Pacific Ocean, 1923-2005

Cited by 36 publications

References 63 publications

Inferring colonization history and dispersal patterns of a long‐lived seabird by combining genetic and empirical data

Inferring colonization history and dispersal patterns of a long‐lived seabird by combining genetic and empirical data

Changing Seabird Management in Hawai'i: from Exploitation through Management to Restoration

Lessons from the Tōhoku tsunami: A model for island avifauna conservation prioritization

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