Topography & Climate
We are quantifying the extent to which landscape physiography influences regional climate patterns and climate displacement rates for both temperature and water balance. We are also examining historical data and paleoecological records to assess how organisms utilized terrain to mitigate against climate changes of the Quaternary.
- Downscaled Regional Paleoclimatic Reconstructions
- Glacial Refugia for Trees of the Pacific Northwest
- Dobrowski, S.Z. (2011) A climatic basis for microrefugia: the influence of terrain on climate. Global Change Biology: 17 (2): 1022-1035.
- Dobrowski, S.Z., J.T. Abatzoglou, J.A. Greenberg, and S.G. Schladow (2009) How much influence does landscape-scale physiography have on air temperature in a mountain environment? Agricultural and Forest Meteorology 149: 1751-1758
Our lab is interested in understanding how climate change affects species distributions. We are using historical datasets to examine past range changes and to quantify temporal niche stability to determine whether species' relationships with the environment are static over time, or if species adapt to changing environments. Our work has focused primarily on the Vegetation Type Mapping (VTM) project from the early 20th century and modern analogues. These survey data are also useful for studying the reliability of species distribution models (SDMs), which have been used extensively to estimate impacts of climate change on local and global species distributions.
We are quantifying the relative role of anthropogenic, climatic, and biotic influences on fire probability in the western US using multiple modeling approaches. We are also studying the transformation, loss, and recovery of forest carbon resources due to management and wildfire.