Search
USGS | 2021
California recently experienced one of the most severe droughts in its history, resulting in extensive dieback of chaparral vegetation in the State’s Mediterranean regions. Though chaparral species…
USGS | 2021
The substantial distributional expansion and infill of pinyon (Pinus monophylla) and juniper (Juniperus sp.) trees (hereafter, "conifer") into sagebrush (Artemisia spp.) ecosystems in Nevada and…
USGS | 2021
The intensification of drought across the Colorado River Basin is causing riparian ecosystem stress and transformations in plant stand structure, species composition, and plant water use, resulting…
USGS | 2021
Accurate maps of seasonal habitat for greater sage-grouse (Centrocercus urophasianus) are of paramount importance to conservation efforts in sagebrush ecosystems across the Great Basin, particularly…
USGS | 2021
Human water use that alters river flow can shape ecology and biodiversity in many riverine and associated environments. Population viability is often linked to the timing and extent of floodplain and…
USGS | 2021
In recent decades, forests worldwide have experienced dramatic and often unexpected drought-related tree mortality events. California recently suffered its most extreme drought on record, resulting…
USGS | 2021
Shrublands in southern California have seen sweeping changes in vegetation composition and structure due to fire and drought. Invasion of nonnative grasses after repeated fire or drought events can…
USGS | 2021
Rangeland ecosystems in the western United States (U.S.) are vulnerable to climate change, fire, and anthropogenic disturbances, yet available geospatial data for assessing trends in condition or…
USGS | 2021
This river corridor assessment documents sediment mobility, vegetation change, and river response to flood disturbance along a 140-kilometer segment of the main-stem Klamath River below Iron Gate Dam…
USGS | 2021
Remote sensing research is used in the culturally, ecologically, and topographically complex transboundary United States/Mexico ecoregions to provide scientific support for land management decisions…
USGS | 2021
In Prince William Sound in southern Alaska, climate change–driven glacial retreat is exposing steep, unstable slopes that could generate tsunamis if they failed rapidly and entered the fjords. One…
USGS | 2021
The 2012 Pole Creek Fire in the Deschutes National Forest in Oregon continues to provide an exceptional opportunity to study wildland fire effects with remote sensing data. This project builds upon…