General Research Interests
My main areas of interest are in GIS, spatial analysis, and remote sensing.
My CV is located here in PDF
contact me via email: jlong AT uvic.ca
PhD Research
My PhD research will focus on development of quantitative measures for mobility data. Examples of how mobility data is being collected include:- Wildlife telemetryBuilding upon methods in spatial analysis, and theory in time geography, I am developing quantitative techniques for identifying and describing patterns in mobility data.
- GPS enabled cell-phones
- GPS devices in cars
- RFID tagging
- GPS devices on athletes
MSc Research
My MSc research looked at change in forest pattern and fragmentation in a region impacted by mountain pine beetle mitigation and salvage harvesting. This work centered around two main areas of interest:1) Develop improved methods using landscape pattern indices for monitoring changes in forest pattern and fragmentation.
2) Use regionalization for mapping landscape pattern
Also, I am interested in furthering the use of local methods in landscape analysis, specifically local indicators for categorical data (LICD).
Other Ongoing Research
Bayesian modelling of Mountatin Pine Beetle infestation
Currently I am working on implementatng a Bayesian approach for mountain pine beetle spread. The current infestation is moving eastward, of concern is when and how the beetle will expand beyond the lodgepole pine forests of Western Canada into the jack pine of the boreal forest. Climate variables (under multiple climate change scenarios) and forest data will be used to generate a MPB spread model, and forecast beetle movement into the future.Marbled Murrelet nesting habitat
SPAR is involved in a project quantifying change in Marbled Murrelet nesting habitat in British Columbia between 1978-2008. Habitat change information will be used in upcoming species at risk classification of the murrelet. I continue to be involved in the GIS aspect of this project-modelling murrelet nesting habitat using forest attribute data, and topographic variables.Publications
Long, J.A., Nleson, T.A. (2012) Measuring dynamic interaction in movement data. Transactions in GIS. (Accepted: Jan-03-2012).
Long, J.A., Nelson, T.A. (2012) Time geography and wildlife home range delineation. Journal of Wildlife Management. 76(2): 407-413.
Long, J.A., Hazlitt, S.L., Nelson, T.A., Laberee, K. (2011) Estimating 30-year change in coastal old-growth habitat for a forest nesting seabird in British Columbia, Canada. Endangered Species Research 14(1):49-59.
Long, J., Nelson, T., Wulder, M. (2010) Regionalization of landscape pattern indices using multivariate cluster analysis. Environmental Management. 46(1):134-142
Long, J.A., Nelson, T.A., Wulder, M.A. (2010) Characterizing forest fragmentation: Distinguishing change in composition from configuration. Applied Geography. 30(3):426-435.
Long, J.A., Nelson, T.A., and Wulder, M.A. (2010) Local indicators for categorical data (LICD): Impacts of scaling decisions. The Canadian Geographer, 54(1):15-28.
In Preparation
Long, J.A., Nelson, T.A. A review of quantitative methods for movement data.
Long, J.A., Robertson, C., Nathoo, F., Nelson, T.A. A Bayesian Space-Time Model for Environmental Spread Processes Applied to a Mountain Pine Beetle Outbreak in Western Canada.
Non-Refereed Publications
Nelson, T.A., Long, J.A., and Laberee, K. (2009) Quantifying change in Marbled Murrelet nesting habitat in British Columbia from 1978-2008. Report prepared for the Ministry of Environment, Species at Risk Coordination Office.
Long, J.A., Nelson, T.A., and Wulder, M.A. (2009) Preliminary analysis on the regionalization of landscape pattern indices using multivariate cluster analysis - MPBI working paper. Victoria, BC: Mountain Pine Beetle Initiative Project #7.32, working document 1.
Long, J.A., Nelson, T.A., and Wulder, M.A. (2008) Preliminary analysis on the impacts of mountain pine beetle management on the spatial pattern of forests - MPBI working paper. Victoria, BC: Mountain Pine Beetle Initiative Project #7.32, working document 1.
Oral Presentations
Long, J.A., Nelson, T.A. (2011) Advances in wildlife telemetry data: An opportunity for space-time geography. Annual meeting of the Association of American Geographers (AAG). Apr. 12-17; Seattle, WA.
Long, J.A., Nelson, T.A. (2011) Sports, time geography, and mobility data. Spatial Knowledge and Information (SKI) Canada. Mar. 4-6, Fernie, BC. Student Presentation Award
Long, J.A., Robertson, C., Nelson, T.A., Nathoo, F. (2010) Modeling spread of mountain pine beetle in Western Canada. Geomatics Canada Conference. Jun. 15-18; Calgary, AB.
Long, J.A., Robertson, C., Nathoo, F., Nelson, T.A. (2010) Bayesian forecasting of ecological range expansion: The case of the mountain pine beetle. NICDS Workshop on Statistical Methods for Geographic and Spatial Data in the Management of Natural Resources. Mar. 3-5; Montreal, QC.
Long, J., Nelson, T., and Wulder, M.A. (2009) Quantifying forest composition and configuration following insect infestation and mitigation. Annual meeting of the Association of American Geographers (AAG). Mar. 22-27; Las Vegas, NV.
Long, J., Nelson, T., and Wulder, M.A. (2009) A decision framework for local indicators of categorical data. Spatial Knowledge and Information (SKI) Canada. Feb. 19-21; Fernie, BC.
Long, J., Nelson, T., and Wulder, M.A. (2008) Living on the edge: Spatial pattern implcations of the current mountain pine beetle epidemic. Spatial Knowledge and Information. Feb. 15-17; Fernie, BC.
Poster Presentations
Long, J.A., Robertson, C., Nathoo, F.S., Nelson, T.A. (2011) A Bayesian Space-Time Model for Environmental Spread Processes Applied to a Mountain Pine Beetle Outbreak in Western Canada. GEOMED 2011. Oct. 20-22; Victoria, BC.
Long, J.A., Nelson, T.A. (2011) A new interaction statistic for movement data. GEOIDE Annual Scientific Conference. May 16-17; Toronto, ON.
Long, J.A., Nelson, T.A. (2010) Time geography and animal home ranges. Geomatics Canada Conference. Jun. 15-18; Calgary, AB.