A5064405562- Avian ecology and behavior
- Wildlife Ecology and Conservation
- Marine animal studies overview
- Marine and fisheries research
- Rangeland and Wildlife Management
- Species Distribution and Climate Change
- Fire effects on ecosystems
- Ecology and Vegetation Dynamics Studies
- Ecology and biodiversity studies
- Climate variability and models
- Animal Behavior and Reproduction
- Arctic and Antarctic ice dynamics
- Arctic and Russian Policy Studies
- Food Industry and Aquatic Biology
- Tropical and Extratropical Cyclones Research
- Marine and environmental studies
- Atmospheric and Environmental Gas Dynamics
- Environmental DNA in Biodiversity Studies
- Bird parasitology and diseases
- Indigenous Studies and Ecology
- Genetic diversity and population structure
- Marine and coastal plant biology
- Pleistocene-Era Hominins and Archaeology
- Archaeology and Rock Art Studies
- Global Energy and Sustainability Research
Acadia University
2019-2024
Acadia Pharmaceuticals (United States)
2023
Dalhousie University
2013-2015
University of Guelph
2009
Animals adjust activity budgets as competing demands for limited time and energy shift across life history phases. For far-ranging migrants especially pelagic seabirds, during breeding migration are generally well studied but the "overwinter" phase of non-breeding has received less attention. Yet this is a critical recovery from breeding, plumage replacement gaining stores return next attempt. We aimed to identify patterns in daily (i.e. flight, floating on water's surface active foraging)...
Marine ecologists and managers need to know the spatial extent of at-sea areas most frequented by groups wildlife they study or manage. Defining group-specific ranges distributions (i.e. space use at level species, population, age-class, etc.) can help identify source severity common distinct threats among different at-risk groups. In biologging studies, this is accomplished estimating a group based on sample tracked individuals. A major assumption these studies consistency in individual...
Past tracking studies of marine animals have primarily targeted adults, biasing our understanding at‐sea habitat use toward older life stages. Anthropogenic threats persist throughout the ranges all stages and it is therefore interest to population ecologists managers alike understand spatiotemporal distributions possible niche differentiation between age‐classes. In albatrosses, particularly little known about juvenile stage when fledglings depart colonies venture sea with no prior...
Abstract Worldwide, migratory phenology and movement of many bird species is shifting in response to anthropogenic climate habitat changes. However, due variation among a shortage analyses, changes waterfowl migration, particularly the fall, are not well understood. Fall migration patterns dictate hunting success satisfaction, with cascading implications on economies support for management securement. Using 60 years band recovery data banded Canadian Prairie Pothole Region (PPR), we...
Migratory species with disjunct and localized breeding distributions, including many colonial marine birds, pose challenges for management conservation as their dynamics are shaped by both broad oceanographic changes specific factors affecting individual colonies. We compare six colonies of the declining Leach's storm-petrel, Hydrobates leucorhous, across core range in Atlantic Canada using standard capture-mark-recapture methods to estimate annual survival individually marked populations...
The research station at Prince Leopold Island (PLI), initiated in 1975, was the first seabird monitoring site created Canadian Arctic. island supports 150 000 breeding pairs of seabirds, principally thick-billed murres ( Uria lomvia Linnaeus 1758), black-legged kittiwakes Rissa tridactyla 1758) and northern fulmars Fulmarus glacialis 1761), along with ∼70 glaucous gulls Larus hyperboreus Gunnerus 1767) several thousand black guillemots Cepphus grylle 1758). Baseline observations biology were...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 9:247-254 (2009) - DOI: https://doi.org/10.3354/esr00225 Concurrent declines in nestling diet quality and reproductive success of a threatened seabird over 150 years Sarah Gutowsky1,*, Michael H. Janssen1, Peter Arcese2, T. Kurt Kyser3, Danielle Ethier4, B. Wunder5, Douglas F. Bertram6, Laura McFarlane Tranquilla7,...
Opportunist gulls use anthropogenic food subsidies, which can bolster populations, but negatively influence sensitive local ecosystems and areas of human settlement. In the eastern Gulf Maine, Canada, breeding herring Larus argentatus have access to resources from aquaculture, fisheries mink farms, relative industry on gull populations is unknown. Our objectives were 1) assess natural habitats by multiple colonies, 2) evaluate variation among colonies in distinct resource types within these...
Abstract Anthropogenic food subsidies attract opportunistic generalists like gulls in high densities, which may lead to negative impacts on human communities and local ecosystems. Managing requires understanding why use particular natural or industrial sites at different times of day phases the breeding cycle. Use human‐influenced habitats likely varies temporally as alter schedules site selection match predictability resources they vary through space time relative patterns activities...
The American Common Eider (<em>Somateria mollisima dresseri</em>) winters along the eastern coasts of northern U.S. and southern Canada. Various lines evidence indicate recent localized changes in eider abundance, particularly Gulf Maine, where most dramatic oceanic Northwest Atlantic are also underway. A range-wide overview shifts local abundance is needed to understand geographic extent winter distribution, however, only Canadian portion their wintering range has been thoroughly repeatedly...
During multiple annual spawning runs from 2013 to 2021, over 9,000 mature anadromous alewife (Alosa pseudoharengus A. Wilson, 1811) were monitored with passive integrated transponders (PITs) in four rivers of the Chignecto Isthmus, Bay Fundy, Canada. A subsample 384 individuals tagged during 2016–2019 aged 3 6 years (mean ± SD; 4.2 0.7 years, n = 232, males; 4.5 152, females). Biotelemetry revealed that one unsexed individual survived seven post tagging, possibly making it 10–13 old. Return...
Abstract 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- between-individual variation in migratory strategy is key towards understanding resilience to environmental variability encountered over migration. We tracked 22 birds on 32 migrations from Canadian evaluate strategies quantify flexibility among individuals years....
Abstract The Arctic is warming three times faster than the rest of globe, causing rapid transformational changes in ecosystems. As these increase, understanding seabird movements will be important for predicting how they respond to climate change, and thus we plan conservation. Moreover, as most Arctic-breeding seabirds only spend breeding season Arctic, change may also affect them through habitat their non-breeding range. We used Global Location Sensors (GLS) provide new insights on...
Abstract 1. Habitat loss and degradation are contributing to severe declines in many North American bird species. For woodcock Scolopax minor (‘woodcock’), of preferred young forest habitat matrices generally attributed as the primary drivers range‐wide population eastern America, but regional patterns abundance or availability have not been assessed Nova Scotia, northeastern‐most portion range. 2. Our objectives were (a) identify regions similar trends over past five decades, (b) evaluate...
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The eastern population of harlequin duck Histrionicus histrionicus in Canada has been designated a species special concern since 2001 and as endangered from 1991 to 2001, largely due low declining wintering numbers detected the 1980s. Our objectives were summarize current state knowledge abundance distribution Eastern Canada, assess trends across regions over past 30+ years. Abundance estimates generated targeted surveys with thorough spatial coverage major areas on insular Newfoundland...
КИТООБРАЗНЫЕ, РАСПРЕДЕЛЕНИЕ, ВОСТОЧНАЯ КАМЧАТКА, ОХОТСКОЕ МОРЕ Наблюдения за акваторией были проведены на судне «Профессор Хромов» во время выполнения нем туристического рейса по маршруту: Петропавловск-Камчатский -Командорские острова -Курильские и вдоль западного побережья Охотского моря.В течение 24 дней пройдено 7834 км проведено 212,5 часов визуальных наблюдений акваторией.Всего рейс было отмечено 65 встреч
Abstract Identifying optimal habitat and predicting species distributions are essential components in developing management priorities for of concern. In Nova Scotia, Canada, the breeding population American woodcock ( Scolopax minor ) has been decline over past 50 years, likely part because reduced availability habitat. We aimed to identify regions Scotia expected support high numbers woodcock, whether monitoring efforts sufficiently capture distribution generated a model areas highest...
The addition of eggs to a nest by conspecific is known for approximately 250 bird species. Understanding the evolution brood parasitism (CBP) requires assessment fitness consequences egg recipient (host). We addressed host traits and effects CBP on future reproduction (i.e., annual survival) hatching success hosts following nesting 206 red-breasted mergansers ( Mergus serrator) colony in which an average 41% nests was parasitized annually. Each tracked ≥2 seasons up seven seasons. proportion...