T C Lantz
Biographic Data
| ID | 201545 |
|---|---|
| NAME | T C Lantz |
| GIVEN NAMES | T C |
| FAMILY NAME | Lantz |
| SIGNATURE | LANTZ T C |
| AFFILIATIONS | University of Victoria |
| ORCID | 0000-0001-5643-1537 |
| VERIFIED | Yes |
| TOTAL WORKS | 16 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 16 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2011 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Satellite observations reveal stable forest limits and shrub expansion across the Canadian forest-tundra ecotone
Climate change at high latitudes is expected to increase the cover of woody vegetation across the forest-tundra ecotone. However, there is still uncertainty concerning the nature and magnitude of these changes. In this study, we used open access satellite remote sensing data from ICESat-2 and Landsat to model change in vegetation structure across 183 million hectares of the Canadian forest-tundra ecotone from 1985 to 2021. We used Random Forests …
Changes in surface water dynamics across northwestern Canada are influenced by wildfire and permafrost thaw
The abundance and distribution of surface water at high latitudes is shifting rapidly in response to both climate change and permafrost thaw. In particular, the expansion and drainage of lakes and ponds is widespread but spatially variable, and more research is needed to understand factors driving these processes. In this study we used medium resolution (30 m) remote sensing data to analyse changes in lake area in permafrost-rich lowland regions …
Social-Ecological Determinants of Access to Fish and Well-Being in Four Gwich’in Communities in Canada’s Northwest Territories
A review of Indigenous knowledge and participation in environmental monitoring
There is a growing interest by governments and academics in including Indigenous knowledge alongside scientific knowledge in environmental management, including monitoring. Given this growing interest, a critical review of how Indigenous peoples have been engaged in monitoring is needed. We reviewed and analyzed the academic literature to answer the following questions: How have Indigenous peoples participated in environmental monitoring, and how…
Springtime in the Delta: The Socio-Cultural Importance of Muskrats to Gwich’in and Inuvialuit Trappers through Periods of Ecological and Socioeconomic Change
Impacts of snow on soil temperature observed across the circumpolar north
Climate warming has significant impacts on permafrost, infrastructure and soil organic carbon at the northern high latitudes. These impacts are mainly driven by changes in soil temperature (T _S ). Snow insulation can cause significant differences between T _S and air temperature (T _A ), and our understanding about this effect through space and time is currently limited. In this study, we compiled soil and air temperature observations (measured …
Vegetation Succession and Environmental Conditions following Catastrophic Lake Drainage in Old Crow Flats, Yukon
Increases in the frequency and magnitude of disturbances associated with the thawing of ice-rich permafrost highlight the need to understand long-term vegetation succession in permafrost environments. This study uses field sampling and remote sensing to explore vegetation development and soil conditions following catastrophic lake drainage in Old Crow Flats (OCF). The data presented show that vegetation on drained lake basins in OCF is characteri…
Global Spatial–Temporal Variability in Terrestrial Productivity and Phenology Regimes between 2000 and 2012
The productivity and phenology of vegetation are spatially and temporally variable ecosystem functions. Monitoring spatial–temporal patterns in these functions can improve our understanding of global change and natural ecosystem variability and inform management actions. Researchers typically focus on temporal changes within or among static regions and omit dynamics of spatial configuration. Our goal was to assess global spatial–temporal variabil…
Cumulative Effects of Environmental Change on Culturally Significant Ecosystems in the Inuvialuit Settlement Region + Supplementary Appendices 1 to 3 (See Article Tools)
The Inuvialuit Settlement Region (ISR) in the western Canadian Arctic is experiencing environmental changes that affect subsistence harvesting practices and are of concern to local communities. In order to assess the impacts of multiple disturbances on culturally important ecosystems in the ISR, we created a cumulative disturbance map that represents relative intensity of terrestrial disturbances across the study region. We then assessed the rela…
Acceleration of thaw slump activity in glaciated landscapes of the Western Canadian Arctic
Climate change is increasing the frequency and intensity of thermokarst, but the influences of regional climate and physiography remain poorly understood. Retrogressive thaw slumping is one of the most dynamic forms of thermokarst and affects many areas of glaciated terrain across northwestern Canada. In this study, we used airphotos and satellite imagery to investigate the influence of climate and landscape factors on thaw slump dynamics. We ass…
Drivers of tall shrub proliferation adjacent to the Dempster Highway, Northwest Territories, Canada
Arctic ecosystems are undergoing rapid changes as a result of climate warming and more frequent disturbances. Disturbances can have particularly large effects on high-latitude ecosystems when ecosystem structure and function is controlled by strong feedbacks between soil conditions, vegetation, and ground thermal regime. In this study we investigated the impact of road construction and maintenance on vegetation structure and biomass along the Dem…
A Community-Based Approach to Mapping Gwich'in Observations of Environmental Changes in the Lower Peel River Watershed, NT
In Canada's western Arctic climate change is driving rapid ecological changes. Ongoing and locally-driven environmental monitoring, in which systematic observations of environmental conditions are recorded and synthesized, is required to understand and respond to climate change and other human impacts. Indigenous peoples' traditional ecological knowledge is increasingly used as the basis for regional monitoring, as there is a need for detailed, p…
Participatory photomapping: A method for documenting, contextualizing, and sharing indigenous observations of environmental conditions
The Mackenzie Delta Region of Northwestern Canada is a dynamic environment that is ecologically and culturally significant. This region is experiencing environmental change that is expected to worsen with continued climate warming and additional anthropogenic stressors. In this project, we developed and field-tested a monitoring program that used participatory photography to document local observations. Working with local Hunter and Trapper Commi…
Using Multiple Sources of Knowledge to Investigate Northern Environmental Change: Regional Ecological Impacts of a Storm Surge in the Outer Mackenzie Delta, N.W.T
Field data, remote sensing, and Inuvialuit knowledge were synthesized to document regional ecological change in the outer Mackenzie Delta and to explore the timing, causes, and implications of this phenomenon. In September 1999, a large magnitude storm surge inundated low-lying areas of the outer Mackenzie Delta. The storm was among the most intense on record and resulted in the highest water levels ever measured at the delta front. Synthesis of …
Environmental Change and Traditional Use of the Old Crow Flats in Northern Canada: An IPY Opportunity to Meet the Challenges of the New Northern Research Paradigm
Shrub expansion in tundra ecosystems: Dynamics, impacts and research priorities
Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems. Here, we (1) synthesize these findings, (2) present a conceptual framework that identifies mechanisms and constraints on shrub increase, (3) explore causes, feedbacks and implications of the increased shrub cover in tundra ecosystems, and (4) address potential lines of…
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Environmental Change and Traditional Use of the Old Crow Flats in Northern Canada: An IPY Opportunity to Meet the Challenges of the New Northern Research Paradigm
Shrub expansion in tundra ecosystems: Dynamics, impacts and research priorities
Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems. Here, we (1) synthesize these findings, (2) present a conceptual framework that identifies mechanisms and constraints on shrub increase, (3) explore causes, feedbacks and implications of the increased shrub cover in tundra ecosystems, and (4) address potential lines of…
Using Multiple Sources of Knowledge to Investigate Northern Environmental Change: Regional Ecological Impacts of a Storm Surge in the Outer Mackenzie Delta, N.W.T
Field data, remote sensing, and Inuvialuit knowledge were synthesized to document regional ecological change in the outer Mackenzie Delta and to explore the timing, causes, and implications of this phenomenon. In September 1999, a large magnitude storm surge inundated low-lying areas of the outer Mackenzie Delta. The storm was among the most intense on record and resulted in the highest water levels ever measured at the delta front. Synthesis of …
A Community-Based Approach to Mapping Gwich'in Observations of Environmental Changes in the Lower Peel River Watershed, NT
In Canada's western Arctic climate change is driving rapid ecological changes. Ongoing and locally-driven environmental monitoring, in which systematic observations of environmental conditions are recorded and synthesized, is required to understand and respond to climate change and other human impacts. Indigenous peoples' traditional ecological knowledge is increasingly used as the basis for regional monitoring, as there is a need for detailed, p…
Participatory photomapping: A method for documenting, contextualizing, and sharing indigenous observations of environmental conditions
The Mackenzie Delta Region of Northwestern Canada is a dynamic environment that is ecologically and culturally significant. This region is experiencing environmental change that is expected to worsen with continued climate warming and additional anthropogenic stressors. In this project, we developed and field-tested a monitoring program that used participatory photography to document local observations. Working with local Hunter and Trapper Commi…
Cumulative Effects of Environmental Change on Culturally Significant Ecosystems in the Inuvialuit Settlement Region + Supplementary Appendices 1 to 3 (See Article Tools)
The Inuvialuit Settlement Region (ISR) in the western Canadian Arctic is experiencing environmental changes that affect subsistence harvesting practices and are of concern to local communities. In order to assess the impacts of multiple disturbances on culturally important ecosystems in the ISR, we created a cumulative disturbance map that represents relative intensity of terrestrial disturbances across the study region. We then assessed the rela…
Acceleration of thaw slump activity in glaciated landscapes of the Western Canadian Arctic
Climate change is increasing the frequency and intensity of thermokarst, but the influences of regional climate and physiography remain poorly understood. Retrogressive thaw slumping is one of the most dynamic forms of thermokarst and affects many areas of glaciated terrain across northwestern Canada. In this study, we used airphotos and satellite imagery to investigate the influence of climate and landscape factors on thaw slump dynamics. We ass…
Drivers of tall shrub proliferation adjacent to the Dempster Highway, Northwest Territories, Canada
Arctic ecosystems are undergoing rapid changes as a result of climate warming and more frequent disturbances. Disturbances can have particularly large effects on high-latitude ecosystems when ecosystem structure and function is controlled by strong feedbacks between soil conditions, vegetation, and ground thermal regime. In this study we investigated the impact of road construction and maintenance on vegetation structure and biomass along the Dem…
Vegetation Succession and Environmental Conditions following Catastrophic Lake Drainage in Old Crow Flats, Yukon
Increases in the frequency and magnitude of disturbances associated with the thawing of ice-rich permafrost highlight the need to understand long-term vegetation succession in permafrost environments. This study uses field sampling and remote sensing to explore vegetation development and soil conditions following catastrophic lake drainage in Old Crow Flats (OCF). The data presented show that vegetation on drained lake basins in OCF is characteri…
Global Spatial–Temporal Variability in Terrestrial Productivity and Phenology Regimes between 2000 and 2012
The productivity and phenology of vegetation are spatially and temporally variable ecosystem functions. Monitoring spatial–temporal patterns in these functions can improve our understanding of global change and natural ecosystem variability and inform management actions. Researchers typically focus on temporal changes within or among static regions and omit dynamics of spatial configuration. Our goal was to assess global spatial–temporal variabil…
Springtime in the Delta: The Socio-Cultural Importance of Muskrats to Gwich’in and Inuvialuit Trappers through Periods of Ecological and Socioeconomic Change
Impacts of snow on soil temperature observed across the circumpolar north
Climate warming has significant impacts on permafrost, infrastructure and soil organic carbon at the northern high latitudes. These impacts are mainly driven by changes in soil temperature (T _S ). Snow insulation can cause significant differences between T _S and air temperature (T _A ), and our understanding about this effect through space and time is currently limited. In this study, we compiled soil and air temperature observations (measured …
Social-Ecological Determinants of Access to Fish and Well-Being in Four Gwich’in Communities in Canada’s Northwest Territories
A review of Indigenous knowledge and participation in environmental monitoring
There is a growing interest by governments and academics in including Indigenous knowledge alongside scientific knowledge in environmental management, including monitoring. Given this growing interest, a critical review of how Indigenous peoples have been engaged in monitoring is needed. We reviewed and analyzed the academic literature to answer the following questions: How have Indigenous peoples participated in environmental monitoring, and how…
Changes in surface water dynamics across northwestern Canada are influenced by wildfire and permafrost thaw
The abundance and distribution of surface water at high latitudes is shifting rapidly in response to both climate change and permafrost thaw. In particular, the expansion and drainage of lakes and ponds is widespread but spatially variable, and more research is needed to understand factors driving these processes. In this study we used medium resolution (30 m) remote sensing data to analyse changes in lake area in permafrost-rich lowland regions …
Satellite observations reveal stable forest limits and shrub expansion across the Canadian forest-tundra ecotone
Climate change at high latitudes is expected to increase the cover of woody vegetation across the forest-tundra ecotone. However, there is still uncertainty concerning the nature and magnitude of these changes. In this study, we used open access satellite remote sensing data from ICESat-2 and Landsat to model change in vegetation structure across 183 million hectares of the Canadian forest-tundra ecotone from 1985 to 2021. We used Random Forests …
Geography (16 works) · Ecology (14 works) · Environmental Science (14 works) · Climate change and permafrost (11 works) · Physical geography (10 works) · Climate change (9 works) · Geology (7 works) · Indigenous Studies and Ecology (7 works) · Biology (6 works) · Environmental resource management (6 works)