Mark Maftei
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View article: Lengths of Stay and Stopover Strategies of Western Sandpipers During Migration at Two Sites in British Columbia, Canada
Lengths of Stay and Stopover Strategies of Western Sandpipers During Migration at Two Sites in British Columbia, Canada Open
An accurate estimate of length of stay is necessary to derive passage population size for birds using a migration stopover site. In this study, we used VHF tags and a Motus automated telemetry array to estimate the length of stay of 385 We…
View article: Latitudinal gradients and sex differences in morphology of the Black Oystercatcher (<i>Haematopus bachmani</i>)
Latitudinal gradients and sex differences in morphology of the Black Oystercatcher (<i>Haematopus bachmani</i>) Open
Environment and behavior are widely understood to affect bird morphology, which can lead to differences among subspecies or populations within a wide‐ranging species. Several patterns of latitudinal gradients in morphology have been descri…
View article: Autumn Marine Bird Populations in Queen Charlotte Strait and Adjacent Waters: a Candidate for IBA/KBA Status
Autumn Marine Bird Populations in Queen Charlotte Strait and Adjacent Waters: a Candidate for IBA/KBA Status Open
Systematic transect surveys of marine birds in eastern Queen Charlotte Strait and the western part of Johnstone Strait, British Columbia, Canada, were made between mid-August and mid-October 2020–2022. All birds within 100-m transect strip…
View article: Oiling Threats to Marine Birds on Southern Vancouver Island, British Columbia, Canada
Oiling Threats to Marine Birds on Southern Vancouver Island, British Columbia, Canada Open
Information on the distribution and abundance of marine birds is needed to evaluate current status in relation to threats from potential increases in vessel traffic off southern Vancouver Island, British Columbia (BC), Canada, in the Salis…
View article: Flexibility in migratory strategy contrasts with reliance on restricted staging and overwintering grounds for Sabine’s gulls from the Canadian High Arctic
Flexibility in migratory strategy contrasts with reliance on restricted staging and overwintering grounds for Sabine’s gulls from the Canadian High Arctic Open
Sabine’s gulls ( Xema sabini ) undertake the longest migration of any gull, a trans-equatorial journey between Arctic breeding and southern hemisphere wintering areas. For such long-distance migrants, quantifying within- and between-indivi…
View article: Geolocator tagging links distributions in the non-breeding season to population genetic structure in a sentinel North Pacific seabird
Geolocator tagging links distributions in the non-breeding season to population genetic structure in a sentinel North Pacific seabird Open
We tested the hypothesis that segregation in wintering areas is associated with population differentiation in a sentinel North Pacific seabird, the rhinoceros auklet ( Cerorhinca monocerata ). We collected tissue samples for genetic analys…
View article: Ecological insights from three decades of animal movement tracking across a changing Arctic
Ecological insights from three decades of animal movement tracking across a changing Arctic Open
Ecological “big data” Human activities are rapidly altering the natural world. Nowhere is this more evident, perhaps, than in the Arctic, yet this region remains one of the most remote and difficult to study. Researchers have increasingly …
View article: Abundance and species diversity hotspots of tracked marine predators across the North American Arctic
Abundance and species diversity hotspots of tracked marine predators across the North American Arctic Open
Aim Climate change is altering marine ecosystems worldwide and is most pronounced in the Arctic. Economic development is increasing leading to more disturbances and pressures on Arctic wildlife. Identifying areas that support higher levels…
View article: Yurkowski et al. 2018 - Arctic Hotspots DDI shapefiles.zip
Yurkowski et al. 2018 - Arctic Hotspots DDI shapefiles.zip Open
These filesets support data from the following paper published in Diversity and Distributions:Abundance and species diversity hotspots of tracked marine predators across the North American ArcticDOI: 10.1111/ddi.12860These filesets are GIS…
View article: Adult survival of Arctic terns in the Canadian High Arctic
Adult survival of Arctic terns in the Canadian High Arctic Open
Arctic tern (Sterna paradisaea) populations are thought to be in decline across much of their range. For long-lived seabirds, determining adult survival rates is key to understanding current population trends and predicting trajectories. W…
View article: Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya
Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya Open
High Arctic polynyas are predictable areas of open water, which offer long-distance migrant seabirds a reliable source of food during a period when they have to replenish and accumulate energy for reproduction. Investigating the interactio…
View article: Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya"
Supplementary material from "Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya" Open
High Arctic polynyas are predictable areas of open water, which offer long-distance migrant seabirds a reliable source of food during a period when they have to replenish and accumulate energy for reproduction. Investigating the interactio…
View article: Migratory Connectivity at High Latitudes: Sabine’s Gulls (Xema sabini) from a Colony in the Canadian High Arctic Migrate to Different Oceans
Migratory Connectivity at High Latitudes: Sabine’s Gulls (Xema sabini) from a Colony in the Canadian High Arctic Migrate to Different Oceans Open
The world's Arctic latitudes are some of the most recently colonized by birds, and an understanding of the migratory connectivity of circumpolar species offers insights into the mechanisms of range expansion and speciation. Migratory divid…
View article: Observations of Heterospecific Courtship Behaviour in an Isolated Population of Ross’s Gulls (<i>Rhodostethia rosea</i>)
Observations of Heterospecific Courtship Behaviour in an Isolated Population of Ross’s Gulls (<i>Rhodostethia rosea</i>) Open
Heterospecific sexual behaviour is notable because it should be strongly deterred by natural and sexual selection. Here we report observations of both male and female Ross’s Gulls (Rhodostethia rosea) routinely engaging in sexual displays …
View article: Nest usurpation by a common eider toward a long-tailed duck
Nest usurpation by a common eider toward a long-tailed duck Open
Intraspecific and non-obligate brood parasitism and nest takeover is well documented in common eiders (Somateria mollissima borealis) nesting in the Arctic. However, we report the takeover of a long-tailed duck (Clangula hyemalis) nest by …