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Dan Isaak

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This project will assess impacts of climate change on stream resources by considering the role of thermal heterogeneity and altered hydrologic regimes. The project will look at streams in Washington, Oregon, and California to develop a case study that stream stewards and conservation planners can use to assess vulnerability for Pacific salmon.Successful adaptation strategies for freshwater biota will consider how spatial patterns in water temperature may respond to climate change. Using remotely sensed spatially continuous maximum water temperature data for~ 30 large rivers throughout the lower portion of the NPLCC, we will map locations of cold water patches, identify potential hydroclimatic and landscape drivers,...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2014, Academics & scientific researchers, Anadromous fish, Applications and Tools, California, All tags...
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Existing stream temperature data will be compiled from numerous federal, state, tribal, and private sources to develop an integrated regional database. Spatial statistical models for river networks will be applied to these data to develop an accurate model that predicts stream temperature for all fish-bearing streams in the US portion of the NPLCC. Differences between model outputs for historic and future climate scenarios will be used to assess spatial variation in the vulnerability of sensitive fish species across the NPLCC.
Nov 26, 2013 presentation by Seth Wenger, Trout Unlimited; w/ Dan Isaak, USFS Rocky Mountain Research Station & Jason Dunham, USGS, Forest & Rangeland Ecosystem Science Cntr. The presentation explains an analytic approach that calculates a full distribution of possible outcomes for a species; and permits ready graphical display of uncertainty for individual locations and of total habitat. This is based on the journal publication, "Probabilistic accounting of uncertainty in forecasts of species distributions under climate change," and a bull trout suitable habitat analysis is used to illustrate methods. See: Global Change Biology, DOI:10.1111/gcb.12294 Sponsored by the Northwest Climate Science Center and the Pacific...
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This project will assess impacts of climate change on stream resources by considering the role of thermal heterogeneity and altered hydrologic regimes. The project will look at streams in Washington, Oregon, and California to develop a case study that stream stewards and conservation planners can use to assess vulnerability for Pacific salmon. Successful adaptation strategies for freshwater biota will consider how spatial patterns in water temperature may respond to climate change. Using remotely sensed spatially continuous maximum water temperature data for~ 30 large rivers throughout the lower portion of the NPLCC, we will map locations of cold water patches, identify potential hydroclimatic and landscape drivers,...
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Existing stream temperature data will be compiled from numerous federal, state, tribal, and private sources to develop an integrated regional database. Spatial statistical models for river networks will be applied to these data to develop an accurate model that predicts stream temperature for all fish-bearing streams in the US portion of the NPLCC. Differences between model outputs for historic and future climate scenarios will be used to assess spatial variation in the vulnerability of sensitive fish species across the NPLCC.
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