75 Works

Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic

Elizabeth Peacock, Sarah A. Sonsthagen, Martyn E. Obbard, Andrei Boltunov, Eric V. Regehr, Nikita Ovsyanikov, Jon Aars, Stephen N. Atkinson, George K. Sage, Andrew G. Hope, Eve Zeyl, Lutz Bachmann, Dorothee Ehrich, Kim T. Scribner, Steven C. Amstrup, Stanislav Belikov, Erik W. Born, Andrew E. Derocher, Ian Stirling, Mitchell K. Taylor, Øystein Wiig, David Paetkau & Sandra L. Talbot
We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades of decline in their sea-ice habitat. We sought to evaluate whether their genetic diversity and structure have changed over this period of habitat decline, how their current genetic patterns compare with past patterns, and how genetic demography changed with ancient fluctuations in climate. Characterizing their circumpolar genetic structure using microsatellite data, we defined four clusters that largely...

Data from: Identifying the African wintering grounds of hybrid flycatchers using a multi–isotope (δ2H, δ13C, δ15N) assignment approach

Thor Veen, Mårten B. Hjernquist, Steven L. Van Wilgenburg, Keith A. Hobson, Eelke Folmer, Laura Font & Marcel Klaassen
Migratory routes and wintering grounds can have important fitness consequences, which can lead to divergent selection on populations or taxa differing in their migratory itinerary. Collared (Ficedula albicollis) and pied (F. hypoleuca) flycatchers breeding in Europe and wintering in different sub-Saharan regions have distinct migratory routes on the eastern and western sides of the Sahara desert, respectively. In an earlier paper, we showed that hybrids of the two species did not incur reduced winter survival,...

Data from: No selection on immunological markers in response to a highly virulent pathogen in an Arctic breeding bird

Pierre Legagneux, Lisha L. Berzins, Mark Forbes, Naomi Jane Harms, Holly L. Hennin, H. G. Gilchrist, Sophie Bourgeon, Joël Bêty, Catherine Soos, Oliver P. Love, Jeffrey T. Foster, Sébastien Descamps & Gary Burness
In natural populations, epidemics provide opportunities to look for intense natural selection on genes coding for life history and immune or other physiological traits. If the populations being considered are of management or conservation concern, then identifying the traits under selection (or ‘markers’) might provide insights into possible intervention strategies during epidemics. We assessed potential for selection on multiple immune and life history traits of Arctic breeding common eiders (Somateria mollissima) during annual avian cholera...

Database – all data for all years

Costa Paulo &
The National Pollutant Release Inventory (NPRI) is Canada's public inventory of pollutant releases (to air, water and land), disposals and transfers for recycling. This database contains the full NPRI dataset from 1993 to the current reporting year. To help you navigate, a Microsoft Word file provides information on the database’s structure and schema. The database is available in Microsoft Access format (accdb). The data are in normalized or “list” format and are optimized for pivot...

Data from: Hidden survival heterogeneity of three common eider populations in response to climate fluctuations

Loreleï Guéry, Sébastien Descamps, Roger Pradel, Sveinn Are Hanssen, Kjell Einar Erikstad, Geir W. Gabrielsen, H. Grant Gilchrist & Joël Bêty
(1) Understanding how individuals and populations respond to fluctuations in climatic conditions is critical to explain and anticipate changes in ecological systems. Most such studies focus on climate impacts on single populations without considering inter- and intra-population heterogeneity. However, comparing geographically dispersed populations limits the risk of faulty generalizations and helps to improve ecological and demographic models. (2) We aimed to determine whether differences in migration tactics among and within populations would induce inter- or...

Atlas des territoires d’intérêt pour la conservation dans les Basses-terres du Saint-Laurent

Produit dans le cadre du Plan d’action Saint-Laurent, l’Atlas des des territoires d’intérêt pour la conservation dans les Basses-terres du Saint-Laurent présente les sites où les besoins de conservation sont les plus criants. Les cibles de conservation retenues (filtre grossier) sont les milieux forestiers, les milieux humides, les milieux ouverts (friches, cultures pérennes) et les milieux aquatiques auxquels s’ajoutent des éléments du filtre fin comme des milieux aquatiques exceptionnels associés au couloir du Saint-Laurent (ex....

Large-scale multi-trophic co-response models and environmental control of pelagic food webs in Québec lakes

Zofia Taranu, Bernadette Pinel-Alloul & Pierre Legendre
Environmental heterogeneity plays a fundamental role in driving species distributions by, for one, fostering niche dimensionality. Within lake ecosystems, species distributions and concordance patterns are driven by both local and regional heterogeneity, though their relative importance across trophic levels has rarely been explored. We developed a statistical framework to compare responses of taxa from different trophic levels to abiotic factors and determine how thisaffected multi-trophic network structures.In particular, we used multi-species concordance modelling (Concordance Analysis...

Exceptional variation in the appearance of Common Murre eggs reveals their potential as identity signals

Robert Montgomerie, Tim Birkhead, Amelia Cox & Jamie Thompson
We studied the ground colors and maculations of 161 Common Murre (Uria aalge) eggs laid by 43 females in 3 small breeding groups on the cliffs of Skomer Island, Wales, in 2016–2018. Both the colors and maculations varied much more among than within females, providing quantitative evidence for the egg traits that might facilitate the parents’ ability to identify their own eggs on the crowded breeding ledges where the density is typically ~20 eggs m–2....

Year-round monitoring at a Pacific coastal campus reveals similar winter and spring collision mortality and high vulnerability of the Varied Thrush

Krista De Groot
Bird-window collisions are a leading cause of direct anthropogenic avian mortality, yet our state of knowledge regarding this threat relies heavily on eastern North American studies. Seasonal patterns of collision mortality may differ along the Pacific coast, and western North American species remain understudied. We therefore surveyed a stratified random sample of 8 buildings for collisions at the University of British Columbia, Vancouver, Canada over 45-day periods during 2 winters, 1 spring, 1 summer and...

Data from: Predator-rodent-plant interactions along a coast-inland gradient in Fennoscandian tundra

Lise Ruffino, Tarja Oksanen, Katrine S. Hoset, Maria Tuomi, Lauri Oksanen, Erkki Korpimäki, Amandine Bugli, Keith A. Hobson, Bernt Johansen & Aurelia Mäkynen
Spatial variation in the strength of trophic cascades in arctic tundra has been related to flows of subsidies across ecosystem boundaries. Here, we ask whether the input of marine subsidies in tundra systems would cause spatial variation in the strength of rodent-plant interactions between coastal areas, where predators have access to marine-derived resources, and non-subsidized inland areas of northern Fennoscandia. We present a detailed evaluation of predator-rodent-vegetation interactions along a coast-inland gradient, during the 2011...

Data from: Predator-mediated negative effects of overabundant snow geese on arctic-nesting shorebirds

Jean-François Lamarre, Pierre Legagneux, Gilles Gauthier, Eric T. Reed & Joël Bêty
Overabundant species can strongly impact ecosystem functioning through trophic cascades. The strong increase in several arctic geese populations, primarily due to changes in agricultural practices in temperate regions, can have severe direct impacts on tundra ecosystems through vegetation degradation. However, predator-mediated negative effects of goose overabundance on other tundra species can also be significant but are poorly understood. We tested the hypothesis that goose abundance negatively affects arctic-nesting shorebirds by increasing nest predation pressure. We...

Data from: Body condition explains migratory performance of a long-distance migrant

Sjoerd Duijns, Lawrence J. Niles, Amanda Dey, Yves Aubry, Christian Friis, Stephanie Koch, Alexandra M. Anderson & Paul A. Smith
Body condition (i.e. relative mass after correcting for structural size) affects the behaviour of migrating birds, but how body condition affects migratory performance, timing and fitness is still largely unknown. Here, we studied the effects of relative body condition on individual departure decisions, wind selectivity, flight speed and timing of migration for a long-distance migratory shorebird, the red knot Calidris canutus rufa. By using automated VHF telemetry on a continental scale, we studied knots' migratory...

Single year data tables by facility – releases, transfers and disposals

Paulo Costa &
The National Pollutant Release Inventory (NPRI) is Canada's public inventory of pollutant releases (to air, water and land), disposals and transfers for recycling. This file contains the most commonly used NPRI data fields, within a simplified tabular format, including all facility-reported pollutant releases, disposals and transfers for recycling for a given year, listed by facility and substance. There are important factors that should be considered prior to the use and interpretation of NPRI data. Additional...

Data from: Temporal dynamics of snowmelt nutrient release from snow–plant residue mixtures: an experimental analysis and mathematical model development

Diogo Costa, Jian Liu, Jennifer Roste & Jane Elliott
Reducing eutrophication in surface water is a major environmental challenge in many countries around the world. In cold Canadian prairie agricultural regions, part of the eutrophication challenge arises during spring snowmelt when a significant portion of the total annual nutrient export occurs, and plant residues can act as a nutrient source instead of a sink. Although the total mass of nutrients released from various crop residues has been studied before, little research has been conducted...

Projected effects of climate change on boreal bird community accentuated by anthropogenic disturbances in western boreal forest, Canada

Philippe Cadieux, Yan Boulanger, Dominic Cyr, Anthony Taylor, David Price, Peter Solymos, Diana Stralberg, Han Chen, Aaron Brecka & Junior Tremblay
Aim Climate change is expected to influence boreal bird communities significantly, notably through changes in forest habitat (composition and age structure), in the coming decades. How these changes will accumulate and interact with anthropogenic disturbances remains an open question for most species. Location Northeastern Alberta, Canada. Methods We used the LANDIS-II forest landscape model to project changes in forest landscapes, and associated bird populations (72 passerine species), according to three climatic scenarios (baseline, RCP 4.5,...

Facility data – total releases by media group

Costa Paulo &
The National Pollutant Release Inventory (NPRI) is Canada's public inventory of pollutant releases (to air, water and land), disposals and transfers for recycling. The file contains facility-specific data reported to the NPRI listed by media of release and by disposal and transfer. Facilities are categorized by industrial sector and total reported quantities. The data are for the most recent reporting year. Please consult the following resources to enhance your analysis: - Guide on using and...

Maps of reporting facilities – total releases to land

Costa Paulo &
The National Pollutant Release Inventory (NPRI) is Canada's public inventory of pollutant releases (to air, water and land), disposals and transfers for recycling. The files below contain a map of Canada showing the locations of all facilities that reported direct releases to land to the NPRI. The data are for the most recent reporting year, by reported total quantities of these releases. The map is available in both ESRI REST (to use with ARC GIS)...

Maps of reporting facilities – facility location

Costa Paulo &
The National Pollutant Release Inventory (NPRI) is Canada's public inventory of pollutant releases (to air, water and land), disposals and transfers for recycling. The files below contain a map of Canada showing the locations of all facilities that reported to the NPRI in the most recent reporting year. The map is available in both ESRI REST (to use with ARC GIS) and WMS (open source) formats. For more information about the individual reporting facilities, datasets...

Atlas des milieux côtiers d’intérêt pour la conservation dans l’estuaire et le golfe du Saint-Laurent

Produit dans le cadre du Plan d’action Saint-Laurent, l’Atlas des milieux côtiers d’intérêt pour la conservation dans l’estuaire et le golfe du Saint-Laurent présente les sites où les besoins de conservation sont les plus criants. Les cibles de conservation retenues (filtre grossier) sont les milieux forestiers, les milieux humides d’intérieur, les marais côtiers et les milieux sableux auxquels s’ajoutent des éléments du filtre fin comme des colonies d’oiseaux, des herbiers de zostère, des éléments fauniques...

Evidence for synergistic cumulative impacts of marking and hunting in a wildlife species.

Frédéric LeTourneux, Gilles Gauthier, Roger Pradel, Josée Lefebvre & Pierre Legagneux
Non-additive effects from multiple interacting stressors can have unpredictable outcomes on wildlife. Stressors that initially have negligible impacts may become significant if they act in synergy with novel stressors. Wildlife markers can be a source of physiological stress for animals and are ubiquitous in ecological studies. Their potential impacts on vital rates may vary over time, particularly when changing environments impose new stressors. In this study, we evaluated the temporal changes in the combined impact...

Data to: Opportunities for the conservation of migratory birds to benefit threatened resident vertebrates in the Neotropics

Scott Wilson
Neotropical countries receive financing and effort from temperate nations to aid the conservation of migratory species that move between temperate and tropical regions. If allocated strategically, these resources could simultaneously contribute to other conservation initiatives. In this study, we use novel distribution maps to show how those resources could aid planning for the recovery of threatened resident vertebrates. Using eBird-based relative abundance estimates, we first identified areas with high richness of Neotropical migrant landbirds of...

Counts of shorebirds and environmental correlates at Roberts Bank, British Columbia (1991 to 2019)

Mark Drever & Scott Flemming
Data include counts conducted during northward migration of two species of shorebirds (Western Sandpiper Calidris mauri and Dunlin Calidris alpina) on the mudflats of Roberts Bank, British Columbia, 1991 to 2019. Count methodology detailed in Drever et al. (2014) and Canham et al. (2021). Data also include a set of covariates related to local conditions (precipitation, temperature, wind speed and direction, solar radiation, tidal amplitude, and water discharge rates from the Fraser River).

Data from: Do environmental conditions experienced in early life affect recruitment age and performance at first breeding in common goldeneye females?

Hannu Pöysä, Robert G. Clark, Antti Paasivaara & Pentti Runko
Environmental conditions experienced early in life may have long-term impacts on life history traits and reproductive performance. We investigated whether ambient temperature experienced during the first two to four weeks of life and weather severity during the first two winters affected recruitment age and relative timing of breeding in the year of recruitment in female common goldeneyes (Bucephala clangula). Our sample consisted of 141 female recruits hatched in a study population in central Finland between...

Data from: Limited consequences of infestation with a blood-feeding ectoparasite for the nestlings of two North Pacific seabirds

J. Mark Hipfner, Douglas F. Bertram & Mark C. Drever
The seabird tick (Ixodes uriae) parasitizes over 60 host species in the circumpolar regions of both hemispheres, and acts as a vector for a number of potentially virulent pathogens. On Triangle Island, British Columbia, Canada, the nestlings of Cassin’s Auklet (Ptychoramphus aleuticus) and Rhinoceros Auklet (Cerorhinca monocerata) are often parasitized by seabird ticks, which may affect their growth and survival in the nest. We used a logistic growth model to interpolate between successive measures of...

Catchment properties and the photosynthetic trait composition of freshwater plant communities

Lars Lønsmann Iversen, A. Winkel, L. Baastrup-Spohr, A. B. Hinke, J. Alahuhta, A. Baattrup-Pedersen, S. Birk, P. Brodersen, P. A. Chambers, F. Ecke, T. Feldmann, D. Gebler, J. Heino, T. S. Jespersen, S. J. Moe, T. Riis, L. Sass, O. Vestergaard, S. C. Maberly, K. Sand-Jensen & O. Pedersen
Unlike in land plants, photosynthesis in many aquatic plants relies on bicarbonate in addition to carbon dioxide (CO2) to compensate for the low diffusivity and potential depletion of CO2 in water. Concentrations of bicarbonate and CO2 vary greatly with catchment geology. In this study, we investigate whether there is a link between these concentrations and the frequency of freshwater plants possessing the bicarbonate use trait. We show, globally, that the frequency of plant species with...

Registration Year

  • 2022
    16
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    15
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    8
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    6
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    7
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    5
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    5
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    7
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    5
  • 2012
    1

Resource Types

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    75

Affiliations

  • Environment Canada
    52
  • Environment and Climate Change Canada
    21
  • University of Saskatchewan
    11
  • University of Alberta
    5
  • Université du Québec à Rimouski
    5
  • University of Windsor
    4
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    4
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    4
  • Memorial University of Newfoundland
    4
  • Acadia University
    3