Skip to main content
U.S. flag

An official website of the United States government

Meredith A Hartwell (Former Employee)

Science and Products

Filter Total Items: 17
No Result Found
No results found.
A pumpjack at an active drilling site near Farmington, NM

New guidelines for successful oil and gas reclamation New guidelines for successful oil and gas reclamation

The report provides specific and comprehensive reclamation guidance for surface oil and gas exploration and development.
By
Ecosystems Mission Area, Land Management Research Program, Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center, Southwest Biological Science Center, Communications and Publishing
Filter Total Items: 31
Lidar monitoring of the geomorphic condition of archaeological sites in Grand Canyon National Park, 2010-2020

Lidar monitoring of the geomorphic condition of archaeological sites in Grand Canyon National Park, 2010-2020

This report presents topographic change results from surveys conducted at 30 archaeological sites in 23 locations in Grand Canyon National Park from...

Read Article
A new framework to resolve mismatches during transitions to different monitoring methods for northern spotted owls

A new framework to resolve mismatches during transitions to different monitoring methods for northern spotted owls

An integrated framework has been developed in order to resolve mismatches and provide continuity during transitions to different monitoring procedures...

Read Article
Saguaros flower in an entirely unique formation

Saguaros flower in an entirely unique formation

New research from the USGS and the National Park Service overturns a century of thinking regarding the flowering pattern of the Southwest's iconic...

Read Article
Restricting access to Bright Angel Creek and releasing experimental fall-timed floods increases brown trout immigration into Glen Canyon Dam’s tailwater

Restricting access to Bright Angel Creek and releasing experimental fall-timed floods increases brown trout immigration into Glen Canyon Dam’s tailwater

USGS and Grand Canyon National Park Service researchers investigated the increased dispersal of brown trout (Salmo trutta) into the Colorado River...

Read Article
Incorporating Genetic Diversity into Restoration and Conservation Decision-making

Incorporating Genetic Diversity into Restoration and Conservation Decision-making

New methods developed by the Southwest Biological Science Center utilize species’ unique patterns of genetic diversity to generate maps that may be...

Read Article
Twenty-four Years of Data Show Desert Soils Struggle for Survival

Twenty-four Years of Data Show Desert Soils Struggle for Survival

Increasing summertime temperatures in the deserts of the southwest United States may be making it harder for lichens, an important member of the soil...

Read Article
Birds Use Tortoise Burrows, Too

Birds Use Tortoise Burrows, Too

Remote camera monitoring allows us to see wildlife behavior without disturbance. Instead of from a 'bird's eye view,' this study approaches...

Read Article

Science and Products

Filter Total Items: 17
No Result Found
No results found.
A pumpjack at an active drilling site near Farmington, NM

New guidelines for successful oil and gas reclamation New guidelines for successful oil and gas reclamation

The report provides specific and comprehensive reclamation guidance for surface oil and gas exploration and development.
By
Ecosystems Mission Area, Land Management Research Program, Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center, Southwest Biological Science Center, Communications and Publishing
Filter Total Items: 31
Lidar monitoring of the geomorphic condition of archaeological sites in Grand Canyon National Park, 2010-2020

Lidar monitoring of the geomorphic condition of archaeological sites in Grand Canyon National Park, 2010-2020

This report presents topographic change results from surveys conducted at 30 archaeological sites in 23 locations in Grand Canyon National Park from...

Read Article
A new framework to resolve mismatches during transitions to different monitoring methods for northern spotted owls

A new framework to resolve mismatches during transitions to different monitoring methods for northern spotted owls

An integrated framework has been developed in order to resolve mismatches and provide continuity during transitions to different monitoring procedures...

Read Article
Saguaros flower in an entirely unique formation

Saguaros flower in an entirely unique formation

New research from the USGS and the National Park Service overturns a century of thinking regarding the flowering pattern of the Southwest's iconic...

Read Article
Restricting access to Bright Angel Creek and releasing experimental fall-timed floods increases brown trout immigration into Glen Canyon Dam’s tailwater

Restricting access to Bright Angel Creek and releasing experimental fall-timed floods increases brown trout immigration into Glen Canyon Dam’s tailwater

USGS and Grand Canyon National Park Service researchers investigated the increased dispersal of brown trout (Salmo trutta) into the Colorado River...

Read Article
Incorporating Genetic Diversity into Restoration and Conservation Decision-making

Incorporating Genetic Diversity into Restoration and Conservation Decision-making

New methods developed by the Southwest Biological Science Center utilize species’ unique patterns of genetic diversity to generate maps that may be...

Read Article
Twenty-four Years of Data Show Desert Soils Struggle for Survival

Twenty-four Years of Data Show Desert Soils Struggle for Survival

Increasing summertime temperatures in the deserts of the southwest United States may be making it harder for lichens, an important member of the soil...

Read Article
Birds Use Tortoise Burrows, Too

Birds Use Tortoise Burrows, Too

Remote camera monitoring allows us to see wildlife behavior without disturbance. Instead of from a 'bird's eye view,' this study approaches...

Read Article
Was this page helpful?