Images

Microscopic view of tree rings from a ponderosa pine in northern New Mexico. Photo by Ellis Margolis (USGS).

Lignin phenol extracts from Great Dismal Swamp peats. Photo by Craig Stricker (USGS).

The Great Dismal Swamp Wildlife Refuge spans Virginia and North Carolina. Photo by Craig Stricker (USGS). 

Geology, Geophysics, and Geochemistry Stable Isotope Laboratory. Photo by Craig Stricker (USGS).

Researchers, including Jonathan Friedman (pictured here) planted cottonwoods in this Common Garden plot in 2005, and since have monitored the growth and phenology of these trees. Every year since 2017, they cut back the trees to remove the confounding effect of age.

Wild horses of the Conger Herd Management Area, Utah. Photo by Sarah King (Colorado State University).

Wild horses stand in sagebrush landscape in the Frisco Herd Management Area, Utah. Photo by E. Long.

Wild horses in a sagebrush landscape in the Frisco Herd Management Area, Utah. Photo by L. Prevot.

Cinnamon teal with a GPS tracking backpack that weighs 10 grams, making it much more successful in staying on longer than heavier tracking devices. 

Working with the National Park Service Northern Colorado Plateau Network we are analyzing data from over 20 sites along the Green and Yampa rivers in Utah and Colorado, integrating annual data from thousands of 1-m² plots, including plant species occurrence, surface elevation and percentage of time under water.

A field notebook entry from 12/14/87 from data collection and equipment maintenance for long term monitoring in the Loch Vale Watershed, Rocky Mountain National Park. Screenshot taken from FieldBook19871006_19891031_p1 from https://doi.org/10.5066/P1CXWAVP. 

A field notebook entry from 8/29/19 from data collection and equipment maintenance for long term monitoring in the Loch Vale Watershed, Rocky Mountain National Park. Screenshot taken from FieldBook20190819_20201208_p1 from https://doi.org/10.5066/P1CXWAVP. 

A field notebook entry from 3/2/10 from data collection and equipment maintenance for long term monitoring in the Loch Vale Watershed, Rocky Mountain National Park. Screenshot taken from FieldBook20100112_20100413 from https://doi.org/10.5066/P1CXWAVP. 

Entry Text:

A field notebook entry from 3/25/97 from data collection and equipment maintenance for long term monitoring in the Loch Vale Watershed, Rocky Mountain National Park. Screenshot taken from FieldBook19960507_20060627_p2 from https://doi.org/10.5066/P1CXWAVP. 

Entry text: 1st day of 1997 sampling

A map of the locations of all sample sites within Loch Vale and additional long-term sites in Rocky Mountain National Park is included with the field notebook files. From: 

A sea of sagebrush in Seedskadee National Wildlife Refuge. Photo by Emma Dietrich (USGS).

The spectacular Mojave Desert landscapes within Red Rock Canyon National Conservation area draw millions of visitors each year. 

The spectacular Mojave Desert landscapes within Red Rock Canyon National Conservation area draw millions of visitors each year. 

For most of the 1900s, sections of the Cotoni-Coast Dairies unit of the California Coast National Monument were mined for limestone and shale. Minerals were transported to the cement plant from the top of quarries through conveyer belts like this one.

Hillside of the Cotoni Coast Dairies onshore unit of the California Coastal National Monument. Prior to becoming a monument, parts of the landscape like those seen here degraded as a result of human development and invasive species. Monument managers are now looking to incorporate the best available science into their restoration plans.

View of the Pacific Ocean from the Cotoni-Coast Dairies unit of the California Coast National Monument.