Applying remote sensing for large-landscape problems: inventorying and tracking habitat recovery for a broadly distributed Species At Risk

Simple item page
dc.contributor.authorDickie, Melanie
dc.contributor.authorHricko, Branislav
dc.contributor.authorHopkinson, Christopher
dc.contributor.authorTran, Victor
dc.contributor.authorKohler, Monica
dc.contributor.authorToni, Sydney
dc.contributor.authorSerrouya, Robert
dc.contributor.authorKariyeva, Johan
dc.date.accessioned2025-06-24T22:27:15Z
dc.date.available2025-06-24T22:27:15Z
dc.date.issued2023
dc.descriptionOpen access article. Creative Commons Attribution 4.0 International license (CC BY 4.0) applies
dc.description.abstract1. Anthropogenic habitat alteration is leading to the reduction of global biodiversity. Consequently, there is an imminent need to understand the state and trend of habitat alteration across broad areas. In North America, habitat alteration has been linked to the decline of threatened woodland caribou. As such, habitat protection and restoration are critical measures to support recovery of self-sustaining caribou populations. Broad estimates of habitat change through time have set the stage for understanding the status of caribou habitat. However, the lack of updated and detailed data on post-disturbance vegetation recovery is an impediment to recovery planning and monitoring restoration effectiveness. Advances in remote sensing tools to collect high-resolution data at large spatial scales are beginning to enable ecological studies in new ways to support ecosystem-based and species-based management. 2. We used semi-automated and manual methodologies to fuse photogrammetry point clouds (PPC) from high-resolution aerial imagery with wide-area light detection and ranging (LiDAR) data to quantify vegetation structure (height, density, class) on disturbances associated with caribou declines. We also compared vegetation heights estimated from the semi-automated PPC-LiDAR fusion to heights estimated in the field, using stereoscopic interpretation, and using multi-channel TiTAN LiDAR. 3. Vegetation regrowth was occurring on many of the disturbance types, though there was local variability in the type, height and density of vegetation. Heights estimated using PPC-LiDAR fusion were highly correlated (r ≥ 0.87 in all cases) with heights estimated using stereomodels, TiTAN multi-channel LiDAR and field measurements. 4. We demonstrated that PPC-LiDAR fusion can be operationalized over large areas to collect comprehensive and consistent vegetation data across landscape levels, providing opportunities to link fine-resolution remote sensing to landscape-scale ecological studies. Crucially, these data can be used to estimate rates of habitat recovery at resolutions that are not feasible using more commonly used satellite-based sensors, bridging the gap between resolution and extent. Such data are needed to achieve effective and efficient habitat monitoring to support caribou recovery efforts, as well as a myriad of additional forest management needs.
dc.description.peer-reviewYes
dc.identifier.citationDickie, M., Hricko, B., Hopkinson, C., Tran, V., Kohler, M., Toni, S., Serrouya, R., & Kariyeva, J. (2023). Applying remote sensing for large-landscape problems: inventorying and tracking habitat recovery for a broadly distributed Species At Risk. Ecological Solutions and Evidence, 4(3), Article e12254. https://doi.org/10.1002/2688-8319.12254
dc.identifier.urihttps://hdl.handle.net/10133/7060
dc.language.isoen
dc.publisherWiley
dc.publisher.departmentDepartment of Geography and Environment
dc.publisher.facultyArts and Science
dc.publisher.institutionUniversity of Alberta
dc.publisher.institutionUniversity of Lethbridge
dc.publisher.institutionEnvironment and Climate Change Canada
dc.publisher.urlhttps://doi.org/10.1002/2688-8319.12254
dc.subjectHabitat assessment
dc.subjectLight detection and ranging
dc.subjectPhotogrammetry
dc.subjectRangifer tarandus
dc.subjectVegetation recovery
dc.subjectCaribou
dc.subjectRemote sensing
dc.subject.lcshCaribous--Habitat
dc.titleApplying remote sensing for large-landscape problems: inventorying and tracking habitat recovery for a broadly distributed Species At Risk
dc.typeArticle
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Hopkinson-applying-remote.pdf
Size:
2.29 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Hopkinson, Christopher