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Examples of three types of intertidal biofilms observed at study sites with varying pigmentation. (a) Dark gray-greens are indicative of cyanobacteria; (b) Golden brown is indicative of diatoms; (c) Bright green is indicative of chlorophytes.
Examples of three types of intertidal biofilms observed at study sites with varying pigmentation. (a) Dark gray-greens are indicative of cyanobacteria; (b) Golden brown is indicative of diatoms; (c) Bright green is indicative of chlorophytes.
Western sandpiper foraging on a mudflat. This shorebird, which winters along coasts across the Americas and breeds in northern Alaska), may consume up to 20 percent of their body weight in biofilm per hour when fueling up for migration.
Western sandpiper foraging on a mudflat. This shorebird, which winters along coasts across the Americas and breeds in northern Alaska), may consume up to 20 percent of their body weight in biofilm per hour when fueling up for migration.
Maps of (a) chl-a concentration, (b) carbohydrates, (c) lipids, and (d) total organic carbon in southern San Francisco Bay, 15 April 2021, based on final partial least squares regression models and AVIRIS-NG 3.7 m imagery. Base map from Esri and its licensors, copyright 2022.
Maps of (a) chl-a concentration, (b) carbohydrates, (c) lipids, and (d) total organic carbon in southern San Francisco Bay, 15 April 2021, based on final partial least squares regression models and AVIRIS-NG 3.7 m imagery. Base map from Esri and its licensors, copyright 2022.
Map showing estimated light absorption at 440nm, a proxy for the amount of colored dissolved organic matter in south San Francisco Bay waters. Project page: Remote Sensing of Mercury Pollution in South San Francisco Bay.
Map showing estimated light absorption at 440nm, a proxy for the amount of colored dissolved organic matter in south San Francisco Bay waters. Project page: Remote Sensing of Mercury Pollution in South San Francisco Bay.
A photo of Niky Taylor with a USGS cap to be used as her staff profile photograph.
A photo of Niky Taylor with a USGS cap to be used as her staff profile photograph.
High-resolution multispectral imagery collected in March 2024 by USGS of NPS vegetation monitoring plots at Palo Alto Battlefield in Brownsville, TX. The black boxes outline the sampling plot perimeter, and the green polygons outline patches of cordgrass (Spartina).
High-resolution multispectral imagery collected in March 2024 by USGS of NPS vegetation monitoring plots at Palo Alto Battlefield in Brownsville, TX. The black boxes outline the sampling plot perimeter, and the green polygons outline patches of cordgrass (Spartina).
RUSH is a tool for rapid repeat high resolution coastal vegetation maps to improve forecasting of hurricane impacts and coastal resilience. Vegetation cover in coastal settings significantly controls flooding, erosion, and barrier island breaching during extreme storms by reducing wave energy.
RUSH is a tool for rapid repeat high resolution coastal vegetation maps to improve forecasting of hurricane impacts and coastal resilience. Vegetation cover in coastal settings significantly controls flooding, erosion, and barrier island breaching during extreme storms by reducing wave energy.
We have experienced the placement of rocks on hillsides in eroded areas. The rock dams capture silt and water. A great many dams placed close together in all drainages capture so much water that the hills become sponges.
We have experienced the placement of rocks on hillsides in eroded areas. The rock dams capture silt and water. A great many dams placed close together in all drainages capture so much water that the hills become sponges.
Rancho Cacachilas is a land restoration and ecotourism project in the Sierra Cacachilas mountain range, 30km east of the city of La Paz, Baja California Sur, Mexico.
Rancho Cacachilas is a land restoration and ecotourism project in the Sierra Cacachilas mountain range, 30km east of the city of La Paz, Baja California Sur, Mexico.
Lucinda Cole and I retired to the Pitchfork Ranch in southwest New Mexico two decades ago. We’ve overseen 17 government grants to install grade-control structures in 31 side-drainages and the ranches’ 9-mile reach of the 48-mile-long Burro Ciénaga riparian watercourse, 1.5-miles perennial ciénaga.
Lucinda Cole and I retired to the Pitchfork Ranch in southwest New Mexico two decades ago. We’ve overseen 17 government grants to install grade-control structures in 31 side-drainages and the ranches’ 9-mile reach of the 48-mile-long Burro Ciénaga riparian watercourse, 1.5-miles perennial ciénaga.
We live in the Anthropocene. The entire surface of the earth has been impacted by human activity and our land management decisions. In this context, most of the grasslands in arid and semiarid regions are experiencing severe and continuing degradation.
We live in the Anthropocene. The entire surface of the earth has been impacted by human activity and our land management decisions. In this context, most of the grasslands in arid and semiarid regions are experiencing severe and continuing degradation.
The use of simple erosion control structures, one-rock-dams, rock sills, trincheras, etc have gained great popularity in recent years. Ease of construction, relative cost and effectiveness are driving increased and widespread use.
The use of simple erosion control structures, one-rock-dams, rock sills, trincheras, etc have gained great popularity in recent years. Ease of construction, relative cost and effectiveness are driving increased and widespread use.