Dr Margaret E. Andrew
BS, Stanford University; PhD, University of California Davis


About me

I am a spatial ecologist with expertise in Landscape Ecology, Conservation Ecology, Remote Sensing, GIS, and spatial and statistical analyses.  My research focuses on the application of geospatial methods to conservation planning and assessment, landscape ecology, and biodiversity research.  It combines remote sensing with GIS, and statistical and simulation modeling to address processes across levels of organization (i.e., organismal through landscape processes) and conservation strategies at a range of scales.  Much of my research has stemmed from the development and demonstration of broad-scale, spatially-explicit environmental monitoring frameworks using Earth observation data.  The resultant data products, of invasive plant distributions and important environmental gradients, are invaluable for environmental management, including the conservation of biodiversity and ecosystem services, as well as basic ecological research.  I have applied these products to develop models of invasibility and population spread, to evaluate the effects of habitat fragmentation, to probe the mechanisms underlying broad-scale biodiversity gradients and patterns of community composition, and to assess the effectiveness and future potential of protected area networks.

Teaching area

ENV303 – Geographic Information Systems for Environmental Management (formerly ENV203/503)

ENV558 -  Environmental Monitoring (formerly ENV505)

Research areas

  • Ecological remote sensing
  • Spatial conservation planning and assessment
  • Landscape ecology
  • Invasion biology
  • Biogeography & macroecology

Awards and grants

N. Dunlop & M.E. Andrew (2015-2016).  Do climate refugia exist on the conservation stations?  Gundawa Regional Conservation Association.

M.E. Andrew & J.M. Shephard (2014-2015).  The ecology and geography of nest site selection by a charismatic eagle species on Australia’s offshore islands.  National Geographic Society Committee for Research and Exploration.

M.E. Andrew (2014-2015).  Dynamic distribution modelling of birds in the Great Western Woodlands.  BirdLife Australia.

Events and speaking engagements

I have delivered or contributed to more than 40 research presentations at a variety of conferences and workshops targeting diverse audiences, including local to international ecologists, local and regional natural resource managers, and remote sensing scientists.  I have also given invited seminars at a number of universities in the United States and internationally, as well as to government agencies in Canada and Australia.

Conference venues for my work include:

  • Meetings of the Ecological Society of America (2007-2009, 2014)
  • Symposiums of the United States Regional Association and the World Congress of the International Association for Landscape Ecology (2007, 2009, 2010, 2013-2016)
  • Conferences of the Ecological Society of Australia (2014, 2015)
  • Australiasian Ornithological Conference (2015)
  • Australasian Plant Pathology Society Conference (2015)
  • Meeting of the IUFRO Working Party 7.02.09, Phytophthora in Forests & Natural Ecosystems (2014)
  • Australasian Raptor Conference (2013)
  • State of the San Francisco Estuary Conferences (2005, 2007, 2009)
  • CALFED Bay-Delta Program Science Conferences (2006, 2008)
  • American Geophysical Union Fall Meeting (2007, 2013)
  • Western Aquatic Plant Management Society Meetings (2005, 2006)
  • International Conference on the Ecology and Management of Alien Plant Invasions (2003)
  • Society for Conservation GIS International Conference (2006)
  • AVIRIS Science Workshop (2007)
  • California Invasive Plant Council Symposium (2008)
  • North American Moose Conference and Workshop (2010)
  • Forestsat (2010)
  • IUFRO Landscape Ecology Conference (2010)
  • Canadian Symposium on Remote Sensing (2011)

Doctoral and masters supervisions


  • Haylea Warrener (2014-2015). Influence of habitat connectivity on the distribution of the powerful owl (Ninox strenua), Sydney Metropolitan Area, NSW


  • Nawaraj Tiwari (2014-2015). Incorporating behavioral responses to edges into landscape resistance models of ecological connectivity
  • Ashley Godwin (2014-2015). Spatial patterns of deforestation on Timor Island, 1989-2009
  • Fiona Westcott (2012-2013). Making tracks:  Patterns of 4 wheel-drive trails in the Great Western Woodlands


33.  Mayor, S.J., R.P. Guralnick, M.W. Tingley, J. Otegui, J.C. Withey, S.C. Elmendorf, M.E. Andrew, S. Leyk, I.S. Pearse, and D.C. Schneider  (2017).  Increasing phenological asynchrony between spring green-up and arrival of migratory birds.  Scientific Reports7:1902.  doi:10.1038/s41598-017-02045-z.

32.  Truong, T.T.A., G.E.StJ. Hardy, and M.E. Andrew.  (2017).  Contemporary remotely sensed data products refine invasive plants risk mapping in data poor regions.  Frontiers in Plant Science.  8:770.  doi:10.3389/fpls.2017.00770.

31.  Andrew, M.E. and J.M. Shephard.  (2017).  Semi-automated detection of eagle nests:  An application of very high resolution image data and advanced image analyses to wildlife surveys.  Remote Sensing in Ecology and Conservationdoi:10.1002/rse2.38.

30.  Andrew, M.E., K.X. Ruthrof, G. Matusick, and G.E.St.J. Hardy. (2016). Spatial configuration of drought disturbance and forest gap creation across environmental gradients.  PLoS ONE. 11:e0157154.  doi:10.1371/journal.pone.0157154.

29.  Harradine, E.L., M.E. Andrew, J.W. Thomas, R.A. How, L.H. Schmitt, and P.B.S. Spencer. (2015).  Importance of dispersal routes that minimize open-ocean movement to the genetic structure of island populations.  Conservation Biology. 29:1704-1714.  doi:10.1111/cobi.12555.

28.  Westcott, F. and M.E. Andrew. (2015).  Spatial and environmental patterns of off-road vehicle recreation in a semi-arid woodland.  Applied Geography. 62:97-106.  doi:10.1016/j.apgeog.2015.04.011.

27.  Andrew, M.E., M.A. Wulder, T.A. Nelson, and N.C. Coops. (2015).  Spatial data, analysis approaches, and information needs for spatial ecosystem service assessments: A review.  GIScience and Remote Sensing. 52:344-373. doi:10.1080/15481603.2015.1033809.

26.  Andrew, M.E. (2015). Earth observation of ecosystem services. Invited book review. African Journal of Range & Forage Science.  32:70-71.  doi:10.2989/10220119.2014.946537.

25.  Michaud, J.-S., N.C. Coops, M.E. Andrew, M.A. Wulder, G.S. Brown, and G.J.M. Rickbeil. (2014).  Estimating moose (Alces alces) occurrence and abundance from remotely derived environmental indicators.  Remote Sensing of Environment.  152:190-201.

24.  Andrew, M.E., M.A. Wulder, and T.A. Nelson. (2014).  Potential contributions of remote sensing to ecosystem service assessments.  Progress in Physical Geography38:328-353.

23.  Andrew, M.E., M.A. Wulder, and J.A. Cardille. (2014).  Protected areas in boreal Canada:  A baseline and considerations for the continued development of a representative and effective reserve network.  Environmental Reviews22:135-160.

22.  Rickbeil, G.J.M., N.C. Coops, M.E. Andrew, D.K. Bolton, N. Mahony, and T.A. Nelson.  (2014).  Assessing conservation regionalization schemes:  employing a beta diversity metric to test the environmental surrogacy approach.  Diversity and Distributions20:503-514.

21.  Coops, N.C., M.E. Andrew, T. Nelson, R. Powers, S. Thompson, and M.A. Wulder (2013).  Using remote sensing for Protected Area planning in Canada.  In: Review of the use of remotely-sensed data for monitoring biodiversity change and tracking progress towards the Aichi Biodiversity Targets, Editors: Cristina Secades, Brian O’Connor, Claire Brown and Matt Walpole, United Nations Environment Programme World Conservation Monitoring Centre (UNEP-WCMC). 124 p. URL:  http://www.cbd.int/doc/meetings/sbstta/sbstta-17/information/sbstta-17-inf-16-en.pdf

20.  Andrew, M.E., T.A. Nelson, M.A. Wulder, G.W. Hobart, N.C. Coops, and C.J.Q. Farmer (2013).  Ecosystem classifications based on summer and winter conditions.  Environmental Monitoring and Assessment185:3057-3079.

19.  Andrew, M.E., M.A. Wulder, N.C. Coops (2012).  Identification of de facto protected areas in boreal Canada.  Biological Conservation146:97-107.

18.  Andrew, M.E., M.A. Wulder, N.C. Coops, and G. Baillargeon (2012).  Beta-diversity gradients of butterflies along productivity axes.  Global Ecology and Biogeography21:352-364.

17.  Michaud, J.S., N.C. Coops, M.E. Andrew, and M.A. Wulder (2012).  Characterising spatiotemporal environmental and natural variation throughout the province of Ontario.  Ecological Indicators18:303-311.

16.  Andrew, M.E., M.A. Wulder, and N.C. Coops (2011).  Patterns of protection and threats along productivity gradients in Canada.  Biological Conservation144:2891-2901.

15.  Andrew, M.E. and M.A. Wulder (2011).  Idiosyncratic responses of Pacific salmon species to land cover, fragmentation, and scale.  Ecography34:780-797.

14.  Andrew, M.E., M.A. Wulder, and N.C. Coops (2011).  How do butterflies define ecosystems?  A comparison of ecological regionalization schemes.  Biological Conservation144:1409-1418.

13.  Coops, N.C., J.S. Michaud, M.E. Andrew, and M.A. Wulder (2011). Comparison of a regional-level habitat index derived from MERIS and MODIS estimates of canopy light absorbance. Remote Sensing Letters. 2:327-336.

12.  Andrew, M.E. and S.L. Ustin (2010).  The effects of temporally variable dispersal and landscape structure on invasive species spread.  Ecological Applications20:593-608.

11.  Wulder, M.A., B.P. Stewart, M.E. Andrew, M. Smulders, T. Nelson, N.C. Coops, and G.B. Stenhouse (2009).  Remote sensing derived edge location, magnitude, and class transitions for ecological studies. Canadian Journal of Remote Sensing. 35:509-522.

10.  Andrew, M.E. and S.L. Ustin (2009).  Effects of microtopography and hydrology on phenology of an invasive herb.  Ecography32:860-870.

9.   Wulder, M.A., J.C. White, M.E. Andrew, N.E. Seitz, and N.C. Coops (2009).  Forest fragmentation, structure, and age characteristics as a legacy of forest management.  Forest Ecology and Management258:1938-1949.

8.   Santos, M.J., S. Khanna, E.L. Hestir, M.E. Andrew, S.S. Rajapakse, J. Greenberg, L.W.J. Anderson, and S.L. Ustin (2009).  Use of hyperspectral remote sensing to evaluate efficacy of aquatic plant management.  Invasive Plant Science and Management2:216-229.

7.   Andrew, M.E. and S.L. Ustin (2009).  Habitat suitability modelling of an invasive plant with advanced remote sensing data.  Diversity and Distributions15:627-640.

6.   Andrew, M.E. and S.L. Ustin (2008).  The role of environmental context in mapping invasive plants with hyperspectral image data.  Remote Sensing of Environment112:4301-4317.

5.   Hestir, E.L., S. Khanna, M.E. Andrew, M.J. Santos, J.H. Viers, J.A. Greenberg, S.S. Rajapakse, and S.L. Ustin (2008). Identification of invasive vegetation using hyperspectral remote sensing in the California Delta ecosystem. Remote Sensing of Environment112:4034-4047.

4.   Santos, M.J., S. Khanna, S. Rajapakse, E. Hestir, M. Andrew, and S. Ustin (2007). Bringing hyperspectral methods to applied science: active management of invasive species in the California Delta. Jet Propulsion Laboratory. AVIRIS Workshop Proceedings.

3.   Andrew, M.E. and S.L. Ustin (2006).  Spectral and physiological uniqueness of perennial pepperweed (Lepidium latifolium). Weed Science54:1051-1062.

2.   Rajapakse, S.S., S. Khanna, M.E. Andrew, S.L. Ustin, and M. Lay (2006).  Identifying and classifying water hyacinth (Eichhornia crassipes) using the HyMap sensor. Proc. SPIE.  6298: 629804. doi:10.1117/12.676265.

1.   Ow, M.C., Q. Lui, B.K. Mohanty, M.E. Andrew, V.F. Maples, and S.R. Kushner (2002).  RNase E levels in Escherichia coli are controlled by a complex regulatory system that involves transcription of the rne gene from three promoters. Molecular Microbiology.  43:159-171.