Spring migration routes and chronology of surf scoters (Melanitta perspicillata): a synthesis of Pacific coast studies

Cruz, Susan E. W. De La; Takekawa, John Y.; Wilson, Matthew T.; Nysewander, David R.; Evenson, Joseph R.; Esler, Daniel; Boyd, W. Sean; Ward, David H.

doi:10.1139/z09-099

Cited by 36 publications

(42 citation statements)

References 57 publications

(53 reference statements)

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“…However, the apparent large-scale pattern and chronology of migratory movements of satellitetagged birds were similar. Spring migration was completed in a series of rapid movements punctuated by frequent stopovers at coastal locations, which was comparable to migration patterns found in other Pacific sea duck populations (Phillips et al, 2006;Petersen, 2009;De la Cruz et al, 2009). Between Kodiak Island and their respective summer locations, most birds used the same intercontinental migration corridor that included overland crossings and offshore routes.…”

Section: Spring Migrationsupporting

confidence: 71%

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

Rosenberg¹,

Petrula²,

Schamber³

et al. 2014

ARCTIC

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ABSTRACT. We used satellite telemetry in 2004 -06 to describe the annual movements and habitat use of a segment of the Pacific population of Steller's Eiders (Polysticta stelleri) that winters at Kodiak Island, Alaska. Information about broad-scale patterns of seasonal distribution and links among annual cycle stages is critical for interpreting population trends and developing conservation strategies. We captured birds in Chiniak Bay at Kodiak Island in late February and early March and monitored the movements after departure from Kodiak Island of 24 satellite-tagged birds: 16 after-second-year (ASY) age class females, one second-year age class female, and seven ASY males. All birds used the same intercontinental migration corridor during spring, but routes and chronology of spring migration appeared to vary by year and among individuals. Sixteen of the 24 birds that were tracked migrated to breeding areas along the Arctic coast of Russia from the Chukotka Peninsula to the Taymyr Peninsula; five birds, assumed to be non-breeding, spent the summer in nearshore waters of Russia and Alaska; and the remaining three birds either died during spring migration or had failed transmitters. Thirteen birds were tracked to molt sites that were broadly distributed along the coast of Alaska. Molt sites included St. Lawrence Island, the Kuskokwim Shoals, Kamishak Bay, and three sites along the Alaska Peninsula. Twelve of these 13 birds returned to Kodiak Island to winter, and a single male wintered on the Alaska Peninsula. Steller's Eiders marked during winter at Kodiak Island were widely distributed during the breeding season, but a large proportion of marked birds returned to molting and wintering areas in two years of the study.

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Section: Spring Migrationsupporting

confidence: 71%

“…Satellite telemetry has been used to help describe broad-scale patterns in annual movements and habitat use of numerous sea duck species (e.g., Petersen et al, 1995;Oppel et al, 2008;De La Cruz et al, 2009), including the Atlantic population of Steller's Eiders (Petersen et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

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

Rosenberg¹,

Petrula²,

Schamber³

et al. 2014

ARCTIC

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“…, 2008). The influence of experience, a question of navigation capacity, is commonly expressed by fidelity to breeding or moulting sites in long‐distance migratory birds and to roosting sites at a finer scale (De La Cruz et al. , 2009; Guillemain et al.…”

Section: Discussionmentioning

confidence: 99%

Towards a unification of movement ecology and biogeography: conceptual framework and a case study on Afrotropical ducks

Cumming

Gaidet

Ndlovu

2012

Journal of Biogeography

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Aim We present elements of a new conceptual framework for the unification of biogeography and movement ecology, and demonstrate the value of the new framework using a case study of two species of Afrotropical duck (Anatidae) across a latitudinal gradient. Location Southern Africa. Methods The first part of the paper rests on logic and philosophy. For the second (case study) section, we used data from up to 3 years of satellite telemetry for 26 individuals of two species of Afrotropical duck, the Egyptian goose (Alopochen aegyptiaca) and red-billed teal (Anas erythrorhyncha), from three different populations with moulting sites spread across 17 degrees of latitude. We compared quantitative measures of movement patterns using principal components analysis and boxplots. Results We argue that unpacking the concept of dispersal into the fundamental elements of movement (internal drivers, external drivers, navigation capacity, and motion capacity) provides a more solid basis for contrasting competing hypotheses in biogeographical studies. We found, surprisingly, that red-billed teal, a 'highly nomadic' species, moved with a relatively high degree of consistency at each of our three study latitudes, while Egyptian geese, a 'resident' species, showed latitude-dependent variation in their movements. However, much of the latitude-related variation for Egyptian geese was driven by their annual moult migrations, rather than directly by fluctuations in resource availability. Internal factors appear to dominate movements and probably determine the species ranges of both of our study species. Main conclusions The integration of biogeography and movement ecology, through a more sophisticated view of mechanisms formerly lumped together under 'dispersal', offers a fertile area for further research. The biogeography of Afrotropical ducks appears to be strongly influenced by internal factors. Biogeographical patterns in this taxon may thus be best understood (and modelled) as a long-term response to environmental stochasticity, rather than as a deliberate selection of optimal habitat. Latitudinal comparisons emerge as a valuable way of gaining insights into the drivers of movement for widespread species. (Résumé d'auteur

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“…The taxonomic differences in the demethylation response in adults suggests that methylmercury demethylation may occur more rapidly in avocets and stilts than in terns, but that avocets and stilts may not initiate demethylation until they reach relatively higher total mercury concentrations. Alternatively, avocets and stilts likely are exposed to 45 methylmercury at a lower rate than terns because they primarily forage at a lower trophic level on invertebrates (Ackerman and others, 2013a), as opposed to fish, which are the main prey of terns (Cuthbert and Wires, 1999;McNicholl and others, 2001). Additionally, avocets and stilts likely are exposed to a relatively greater amount of dietary inorganic mercury than terns due to their foraging ecology.…”

Section: Biochemical Effects Of Mercury and Other Cocs On Shorebirds mentioning

confidence: 99%

Mercury in birds of San Francisco Bay-Delta, California: trophic pathways, bioaccumulation, and ecotoxicological risk to avian reproduction

Ackerman¹,

Eagles‐Smith²,

Heinz³

et al. 2014

Open-File Report

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment-visit http://www.usgs.gov or call 1-888-ASK-USGS For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprodTo order this and other USGS information products, visit http://store.usgs.gov Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.Suggested citation: Ackerman, J.T., Eagles-Smith, C.A., Heinz, G.H., De La Cruz, S.E., Takekawa, J.Y., Miles, A.K., Adelsbach, T.L., Herzog, M.P., Bluso-Demers, J.D., Demers, S.A., Herring, G., Hoffman, D.J., Hartman, C.A., Willacker, J.J., Suchanek, T.H., Schwarzbach, S.E., and Maurer, T.C., 2014, Mercury in birds of San Francisco Bay-Delta, California-Trophic pathways, bioaccumulation, and ecotoxicological risk to avian reproduction: U.S. Geological Survey Open-File Report 2014-1251, 202 p., http://dx.doi.org/10.3133/ofr20141251. Relations between log whole blood total mercury (THg) concentrations (µg/g ww) and whole blood stable isotope ratios of carbon (δ 13 C), nitrogen (δ 15 N), and sulfur (δ 34 S) in pre-breeding (green symbols) and breeding ( Relations between log whole blood total mercury (THg) concentrations (µg/g ww) and whole blood table isotope ratios of carbon (δ 13 C), nitrogen Correlation between single-species in mean fish total mercury (THg) concentrations (µg/g dw; ± SE), and corresponding Forster's tern THg concentrations in pre-breeding blood (µg/g ww; ± SE), breeding blood (µg/g ww; ± SE), and eggs (µg/g fww; ± SE) sampled from the same wetland location where fish were sampled .. Leverage plots for the relationship between total mercury (THg) concentrations (mg/g dry weight) and a suite of biomarkers in brains of prebreeding Forster's tern and Caspian tern adults (closed circles and closed triangles, respectively), breeding adult Forster's terns (semi-closed circles), and Tables Table 1. Population range sizes and percentage use of habitat types within 50 and 95 percent utilization distributions (UD) of pre-breeding American avocets and black-necked stilts radio-marked at each site during spring 2005 and 2006 Table 9.Mean percent number ( Table 16. Esophageal contents expressed as aggregate percent dry mass for surf scoters collected during 2003-2004 (2004) and 2004-2005 (2005) Table 17. Sample size, geometric means (µg/g dw), ± standard error and 95 percent CI for hepatic selenium (Se) and total mercury (THg), and renal cadmium (Cd) in female surf scoters only collected during fall (F), winter (W), spring (S) 2003-04 (2004) and 2004-05 (2005) Executive SummarySan Francisco Bay Estuary in northern California has a legacy of mercury ...

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Spring migration routes and chronology of surf scoters (Melanitta perspicillata): a synthesis of Pacific coast studies

Cited by 36 publications

References 57 publications

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

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

Towards a unification of movement ecology and biogeography: conceptual framework and a case study on Afrotropical ducks

Mercury in birds of San Francisco Bay-Delta, California: trophic pathways, bioaccumulation, and ecotoxicological risk to avian reproduction

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