New website here:



Schwantes, Swenson & Jackson – 2016- Quantifying Drought-Induced Tree Mortality in the Open Canopy Woodlands of Central Texas. Remote Sensing of Environment

Schaffer-Smith & Swenson. March 2015 Rapid conservation assessment for endangered species using habitat connectivity models.  Environmental Conservation with Proyecto Mono Tocon

Terborgh, J. et al. Submitted Twenty-three year timeline of ecological stable states and regime shifts in Upper Amazon oxbow lakes. .

Gonzalez-Roglich & Swenson – Jan 2016 –Tree cover and carbon mapping of Argentine savannas: Scaling from field to region.   Remote Sensing of Environment

Gonzalez-Roglich et al. 2015 Woody plant-cover dynamics in Argentine savannas from the 1880’s to 2000’s: the interplay of encroachment and agriculture conversion at varying scales Ecosystems.



 ←Connectivity between habitat remnants for critically endangered primate, Callicebus oenanthe, in San Martin, Peru. Now published in Environmental Conservation— Schaffer-Smith, Swenson, Bóveda-Penalba, Murrieta-Villalobos  Proyecto Mono Tocon  






Remote sensing class gets outside for our annual field trip to Duke Forest


Phd Candidate Aaron Berdanier & his drone





Jan 2015 NSF dissertation enhancement grant to Danica Schaffer-Smith for migratory shorebird habitat research in central California– 24 water level data loggers already installed this February!                                                    →







←Lab photo (from left, Mariano Gonzalez-Roglich, Danica Schaffer-Smith, Amanda Schwantes, Jennifer Swenson, Kelly Howell)







Current research:

  • Shrub encroachment in Argentine steppe; C consequences (NASA/NSF to Gonzalez-Roglich 2010-2013, AGU 2013)
  • Fragmentation/Connectivity analysis for a narrowly endemic primate, San Martin, Peru  (GeoEye, Planet Action to Schaffer-Smith; ATBC presentation June 2013)
  • Spatiotemporal Variability of Inland Waterbodies Along the Pacific Flyway Using 30+ Years of Landsat (NASA to Schaffer-Smith 2013-2016)
  • Mapping tree mortality in central Texas from 2011 drought (USDA-AFRI ; w/ R. Jackson, D. Johnson, A. Schwantes,  IALE Spring 2013)
  • Quantifying Drought-Induced Tree Mortality at Multiple Scales Across Texas: Regional Carbon Cycling, Biophysics, and Regime Shifts (NASA to Schwantes, 2013-2016)
  • LAI for unmanaged forests in the SE- soil moisture and pheonology (DOE w/ Domec and Palmroth)
  • Regime shifts in pristine Amazon lakes traced with remote sensing (w/ Belcon, Terborgh, Davenport, Baker)
  • Analysis of MODIS near-daily imagery for phenological tracking of deciduous forests, NC  (NC-Space)

 Measuring carbon en La Pampa, Argentina. Emanuel Ganora (Universidad Nacional de La Pampa) helping NASA PI Mariano Gonzalez Roglich






Contact: jswenson @


Some Duke links:

Other links

Latin American Geospatial Data:


Intensive Summer School for Computing in Environmental Sciences  with NASA internship


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