Douglas C. Tozer
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View article: Occurrence patterns and trends of frogs in coastal wetlands of the Great Lakes call for further habitat restoration
Occurrence patterns and trends of frogs in coastal wetlands of the Great Lakes call for further habitat restoration Open
Countless wetlands have been lost and degraded globally, making amphibians the most threatened vertebrate class. However, despite facing extensive threats and stressors, coastal wetlands of the Laurentian Great Lakes of North America (lake…
View article: Natural disturbance allows multiple anuran taxa to persist in a dynamic wetland complex
Natural disturbance allows multiple anuran taxa to persist in a dynamic wetland complex Open
The maintenance of biological diversity is frequently enhanced in a heterogenous landscape by some level of disturbance. Thus, when a landscape becomes stabilized and homogenized through the spread of an invasive plant species, there may b…
View article: Increasing marsh bird abundance in coastal wetlands of the Great Lakes, 2011–2021, likely caused by increasing water levels
Increasing marsh bird abundance in coastal wetlands of the Great Lakes, 2011–2021, likely caused by increasing water levels Open
Wetlands of the Laurentian Great Lakes of North America (i.e., lakes Superior, Michigan, Huron, Erie, and Ontario) provide critical habitat for marsh birds. We used 11 years (2011–2021) of data collected by the Great Lakes Coastal Wetland …
View article: An Index of biotic condition (IBC) using birds as indicators of coastal wetland quality in North America’s Laurentian Great Lakes
An Index of biotic condition (IBC) using birds as indicators of coastal wetland quality in North America’s Laurentian Great Lakes Open
To survive in an area, plant and animal species must confront many interacting environmental stressors at different spatial and temporal scales. Consequently, assemblages of resident species, which have successfully negotiated these stress…
View article: Relationships between muskrat density and avian and anuran richness in Great Lakes coastal wetlands
Relationships between muskrat density and avian and anuran richness in Great Lakes coastal wetlands Open
Wetlands in southern Ontario are at risk of degradation and alteration due to human activities. This is a concern because wetlands provide essential habitat for species from a range of taxa, such as birds and anurans (frogs and toads). One…
View article: Assigning harvested waterfowl to geographic origin using feather δ2H isoscapes: What is the best analytical approach?
Assigning harvested waterfowl to geographic origin using feather δ2H isoscapes: What is the best analytical approach? Open
Establishing links between breeding, stopover, and wintering sites for migratory species is important for their effective conservation and management. Isotopic assignment methods used to create these connections rely on the use of predicta…
View article: Application of habitat association models across regions: Useful explanatory power retained in wetland bird case study
Application of habitat association models across regions: Useful explanatory power retained in wetland bird case study Open
Species often exhibit regionally specific habitat associations, so habitat association models developed in one region might not be accurate or even appropriate for other regions. Three programs to survey wetland‐breeding birds covering (re…
View article: Population genetics and geographic origins of mallards harvested in northwestern Ohio
Population genetics and geographic origins of mallards harvested in northwestern Ohio Open
The genetic composition of mallards in eastern North America has been changed by release of domestically-raised, game-farm mallards to supplement wild populations for hunting. We sampled 296 hatch-year mallards harvested in northwestern Oh…
View article: Using Breeding Bird Survey and eBird data to improve marsh bird monitoring abundance indices and trends
Using Breeding Bird Survey and eBird data to improve marsh bird monitoring abundance indices and trends Open
The elusive nature of many marsh-breeding birds presents a challenge for effective population monitoring. The Great Lakes Marsh Monitoring Program (GLMMP), delivered by Birds Canada, addressed these challenges by concentrating survey effor…
View article: Land cover habitat associations of breeding marsh birds and priority waterfowl differ in eastern Canada
Land cover habitat associations of breeding marsh birds and priority waterfowl differ in eastern Canada Open
Studholme, K. R., L. McFarlane Tranquilla, L. E. Berrigan, L. M. Achenbach, and D. C. Tozer. 2022. Land cover habitat associations of breeding marsh birds and priority waterfowl differ in eastern Canada. Avian Conservation and Ecology 17(1…
View article: Losing the edge: trends in core versus peripheral populations in a declining migratory songbird
Losing the edge: trends in core versus peripheral populations in a declining migratory songbird Open
Torrenta, R., K. A. Hobson, D. C. Tozer, and M.-A. Villard. 2022. Losing the edge: trends in core versus peripheral populations in a declining migratory songbird. Avian Conservation and Ecology 17(1):28. https://doi.org/10.5751/ACE-02146-1…
View article: Influence of water level management on vegetation and bird use of restored wetlands in the Montezuma Wetlands Complex
Influence of water level management on vegetation and bird use of restored wetlands in the Montezuma Wetlands Complex Open
Active water management of wetlands promotes seed and tuber production to feed migrating waterfowl, but few assessments exist to determine how management actions influence wetland structure, vegetation and bird response throughout the year…
View article: Handbook of Citizen Science in Ecology and Conservation
Handbook of Citizen Science in Ecology and Conservation Open
View article: Assessing terrestrial wildlife populations in the Toronto and Region Area of Concern
Assessing terrestrial wildlife populations in the Toronto and Region Area of Concern Open
Beneficial use impairments (BUIs) under the Great Lakes Water Quality Agreement identify environmental issues requiring remedial action within the Great Lakes Areas of Concern (AOCs). We conducted this study to support the assessment of th…
View article: Integrating wetland bird point count data from humans and acoustic recorders
Integrating wetland bird point count data from humans and acoustic recorders Open
Stewart, L. N., D. C. Tozer, J. M. McManus, L. E. Berrigan, and K. L. Drake. 2020. Integrating wetland bird point count data from humans and acoustic recorders. Avian Conservation and Ecology 15(2):9. https://doi.org/10.5751/ACE-01661-1502…
View article: Origins of harvested Mallards from Lake St. Clair, Ontario: a stable isotope approach
Origins of harvested Mallards from Lake St. Clair, Ontario: a stable isotope approach Open
Determining origins of waterfowl is important for establishing appropriate management and conservation strategies. In North America, much information is available from long-term mark-recapture programs involving banding on breeding or molt…
View article: Leveraging a Landscape-Level Monitoring and Assessment Program for Developing Resilient Shorelines throughout the Laurentian Great Lakes
Leveraging a Landscape-Level Monitoring and Assessment Program for Developing Resilient Shorelines throughout the Laurentian Great Lakes Open
Traditionally, ecosystem monitoring, conservation, and restoration have been conducted in a piecemeal manner at the local scale without regional landscape context. However, scientifically driven conservation and restoration decisions benef…
View article: Timing matters: cloud cover and date influence probability of detecting nesting Chimney Swifts (Chaetura pelagica)
Timing matters: cloud cover and date influence probability of detecting nesting Chimney Swifts (Chaetura pelagica) Open
Purves, E. F., C. Myles Falconer, D. C. Tozer, and K. Richardson. 2019. Timing matters: cloud cover and date influence probability of detecting nesting Chimney Swifts (Chaetura pelagica). Avian Conservation and Ecology 14(1):8. https://doi…
View article: Origins of harvested Mallards from Lake St. Clair, Ontario: a stable isotope approach
Origins of harvested Mallards from Lake St. Clair, Ontario: a stable isotope approach Open
Palumbo, M. D., D. C. Tozer, and K. A. Hobson. 2019. Origins of harvested Mallards from Lake St. Clair, Ontario: a stable isotope approach. Avian Conservation and Ecology 14(2):3. https://doi.org/10.5751/ACE-01389-140203
View article: Using citizen science monitoring data in species distribution models to inform isotopic assignment of migratory connectivity in wetland birds
Using citizen science monitoring data in species distribution models to inform isotopic assignment of migratory connectivity in wetland birds Open
Stable isotopes have been used to estimate migratory connectivity in many species. Estimates are often greatly improved when coupled with species distribution models (SDMs), which temper estimates in relation to occurrence. SDMs can be con…
View article: Influence of call broadcast timing within point counts and survey duration on detection probability of marsh breeding birds
Influence of call broadcast timing within point counts and survey duration on detection probability of marsh breeding birds Open
The Standardized North American Marsh Bird Monitoring Protocol recommends point counts consisting of a 5-min passive observation period, meant to be free of broadcast bias, followed by call broadcasts to entice elusive species to reveal th…
View article: Standardized Measures of Coastal Wetland Condition: Implementation at a Laurentian Great Lakes Basin-Wide Scale
Standardized Measures of Coastal Wetland Condition: Implementation at a Laurentian Great Lakes Basin-Wide Scale Open
Since European settlement, over 50 % of coastal wetlands have been lost in the Laurentian Great Lakes basin, causing growing concern and increased monitoring by government agencies. For over a decade, monitoring efforts have focused on the…
View article: Short Communications
Short Communications Open
Made available in DSpace on 2022-04-28T19:09:42Z (GMT). No. of bitstreams: 0\n Previous issue date: 2016-06-01
View article: Modeling detection probability to improve marsh bird surveys in southern Canada and the Great Lakes states
Modeling detection probability to improve marsh bird surveys in southern Canada and the Great Lakes states Open
Marsh birds are notoriously elusive, with variation in detection probability across species, regions, seasons, and different times of day and weather. Therefore, it is important to develop regional field survey protocols that maximize dete…