Seasonal Movements and Distribution of Steller’s Eiders (&lt;i&gt;Polysticta stelleri&lt;/i&gt;) Wintering at Kodiak Island, Alaska

Rosenberg, Daniel H.; Petrula, Michael J.; Schamber, Jason L.; Zwiefelhofer, Denny; Hollmén, Tuula E.; Hill, Douglas D.

doi:10.14430/arctic4406

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…Lastly, temporary emigrants may possibly nest in Russia in years they are not detected in Alaska. Rosenberg et al (2014Rosenberg et al ( ) collected 3 yr (2004Rosenberg et al ( −2006 of movement data from 16 adult females and 1 secondyear female marked with satellite transmitters near Kodiak Island, Alaska. One female was classified as a breeder in 2 consecutive years based on the amount of time spent at inland locations, which were approximately 290 km apart in Russia, suggesting that large distances between successive annual nesting attempts are possible.…”

Section: Temporary Emigrationmentioning

confidence: 99%

Use of genetic mark-recapture to estimate breeding site fidelity and philopatry in a threatened sea duck population, Alaska-breeding Steller’s eiders

Safine

Lindberg

Martin

et al. 2020

Endang. Species. Res.

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The Steller’s eider Polysticta stelleri is a sea duck that breeds in Arctic tundra regions of Russia and Alaska (USA). The Alaska-breeding population is listed as ‘threatened’ under the US Endangered Species Act because of a perceived contraction of the breeding range in North America. Understanding demography of the listed population is critical for evaluating measures that can lead to increased abundance and thus, long-term viability. Specifically, estimates of return rates to breeding areas by adult females and natal areas by juvenile females are needed for planning effective recovery actions. We used a suite of polymorphic loci to genotype individuals and generated genetic profiles of nesting females and female offspring from nest materials collected between 1995 and 2016 in a ~170 km2 study area near Utqiagvik, Alaska. We analyzed capture histories of genetically identified individuals to estimate breeding site fidelity, temporary emigration, and philopatry. From a sample of 365 nests, we found that breeding site fidelity of adult females was high (0.91 ± 0.07 SE), and temporary emigration was also high (0.77 ± 0.06) and annually variable (range 0.34-0.97). From egg shell remains of 124 hatched females, we observed 9 recaptures as nesting adults, suggesting that philopatry was also high (range 0.6-1.0). Given the relatively high rates of adult female breeding site fidelity and female philopatry that we estimated, management actions that reduce mortality of adult females and increase annual productivity are likely to help maintain the population of a few hundred breeding Steller’s eiders on the Arctic Coastal Plain of Alaska.

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Section: Temporary Emigrationmentioning

confidence: 99%

Use of genetic mark-recapture to estimate breeding site fidelity and philopatry in a threatened sea duck population, Alaska-breeding Steller’s eiders

Safine

Lindberg

Martin

et al. 2020

Endang. Species. Res.

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“…Mortality during or shortly after surgery can occur (e.g. [71]), and some studies using internal antennas also report a limited signal range of the transmitter as a major disadvantage [58]. Tracking devices can also be attached partly or completely subcutaneous.…”

Section: Waterfowl Tracking: a Brief Historymentioning

confidence: 99%

Reduction in adverse effects of tracking devices on waterfowl requires better measuring and reporting

Lameris

Kleyheeg

2017

Anim Biotelemetry

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Since the first studies in the mid-twentieth century, lightweight electronic tracking devices have been increasingly used to study waterfowl movements. With half a century of experience and growing sample sizes, it has become clear that the attachment of a tracking device can affect a bird's behaviour and fitness. This becomes problematic when it introduces uncertainty about whether the recorded data represent natural behaviour. Waterfowl may be particularly prone to tag effects, since many species are migratory and tracking devices can disrupt their waterproof plumage. The primary aim of this paper is to identify how tracking devices may affect waterfowl survival, migration and reproduction, and how better measuring and reporting of such effects can improve our understanding of the risks, providing a first step towards reducing their impact in future studies. We reviewed literature on electronic tracking of waterfowl to create an overview of currently recognized effects of harness-attached backpacks, implants, subcutaneous attachments and neck collars. Additionally, we analysed developments in the use of attachment methods, the weight of tracking devices relative to bird body mass, and the reporting rate of effects of tracking devices in 202 original tracking studies. We found that although the number of waterfowl tracking studies described in peer-reviewed literature has steeply increased over the past decades, reporting rates of potential effects have decreased from 65.0 to 26.5%. Meanwhile, the mean weight of the tracking devices relative to the bird's body mass remained stable around 2.0%. Major negative effects were reported in 17% of all studies and were found for all attachment methods. Overall, large differences exist in the occurrence and type of negative effects between species and studies, even if the same tracking methods were used. Inconsistent reporting of effects, lack of control groups to measure effects and incomplete descriptions of the methodology hamper the identification of factors contributing to these effects. To accomplish a reduction in adverse effects of tracking, it is necessary to improve the measuring and reporting of effects. We propose a framework for standardized reporting of methods in primary tracking studies and standardized protocols to measure effects of tracking devices on waterfowl.

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Satellite tracking of Ross’s Gull Rhodostethia rosea in the Arctic Ocean

et al. 2015

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Seasonal Movements and Distribution of Steller’s Eiders (<i>Polysticta stelleri</i>) Wintering at Kodiak Island, Alaska

Cited by 3 publications

References 34 publications

Use of genetic mark-recapture to estimate breeding site fidelity and philopatry in a threatened sea duck population, Alaska-breeding Steller’s eiders

Use of genetic mark-recapture to estimate breeding site fidelity and philopatry in a threatened sea duck population, Alaska-breeding Steller’s eiders

Reduction in adverse effects of tracking devices on waterfowl requires better measuring and reporting

Satellite tracking of Ross’s Gull Rhodostethia rosea in the Arctic Ocean

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