Protecting biodiversity for healthy ecosystems and communities

Environmental Stewardship, Summary 2025, Advanced Breeding/Genomics, Animal Health/Management/Performance/Welfare, Cornell University, Ecosystem Services, Extension, Fisheries/Aquaculture, Food Security, Food Systems, Forest Protection and Management, Guam, Human Nutrition/Health/Wellness, Invasive Species, Maryland, New Hampshire, New Mexico, New Mexico State University, New York, North Carolina, North Carolina State University, North Central, Northeast, Oregon, Oregon State University, Pennsylvania, Pest Management, Research, Rural Communities/Health, Soil Health, Southern, Tennessee, The Pennsylvania State University, University of Guam, University of Maryland, University of New Hampshire, University of Tennessee, University of Vermont, Vermont, Washington, Washington State University, Water Resilience/Management, Western, Wildlife

Biodiversity supports healthy ecosystems and recreation around the world. A diverse range of species ensures stability and resilience in the face of environmental changes. Protecting biodiversity also preserves the opportunity for new discoveries, such as species that can be used as biological pest control agents or medicines. Land-grant university researchers and Extension professionals are working to protect the biodiversity that humans rely on and enjoy.

Here are a few examples of that work:

Long-term studies and adaptive strategies have led to successful restoration of oyster reefs in New Hampshire. Restoring oyster reefs supports the health of the Great Bay/Piscataqua River estuarine system by increasing biodiversity and improving water quality. It has also fostered growth of commercial oyster farming in Great Bay, which grew over the last 20 years from just two licensed farms to 32 commercial operations, contributing significantly to the local economy.
New Hampshire Agricultural Experiment Station; USDA Competitive. See full statement.
As part of a collaborative effort, scientists in Washington developed camera-based methods to monitor lynx, providing new insights into lynx population status and habitat requirements. Findings contributed to the development of a 20-year collaborative monitoring plan for lynx and other threatened carnivores in the Cascades.
Washington Agricultural Experiment Station. See full statement.
In New Hampshire, scientists developed a noninvasive, cost-effective acoustic sensor to monitor moose behavior and habitat use, providing crucial data for conservation and forest management. This pioneering work is the first step toward creating an acoustic sensor network to monitor moose populations accurately.
New Hampshire Agricultural Experiment Station Hatch. See full statement.
Sea Grant Extension in Oregon helped West Coast fishermen reduce seabird bycatch, including endangered albatrosses, by providing free streamer lines and promoting sustainable fishing practices.
Oregon State University Extension Service. See full statement.
Scientists in Washington assessed the ability of polar bears to survive on land during ice-free summers.
Washington Agricultural Experiment Station. See full statement.
In Guam, scientists found a more accurate, less invasive way to estimate populations of a native tree snail. Having a reliable count will help agencies and ecologists as they work to conserve the declining species. In addition, thousands of snail images from this study are being used to train an artificial intelligence-based program that will be used around the world to detect tree snails.
University of Guam Western Pacific Tropical Research Center; McIntire-Stennis. See full statement.
Analyzing historical city maps and bird census data over time across three cities, researchers in Maryland showed that the total area of greenspace was the most important factor influencing the number of bird species in cities, and even small parcels of disconnected greenspace can have significant impacts on bird diversity. This is important information for city planners and conservation organizations.
Maryland Agricultural Experiment Station. See full statement.
Researchers in Washington are working on a long-term study to determine which aspects sensory pollution have the most impact on birds.
Washington Agricultural Experiment Station. See full statement.
In New Hampshire, researchers conducted pivotal research on the saltmarsh sparrow, revealing the intricate genetic landscape that underpins its survival and highlighting the urgent need for targeted conservation efforts. By informing policy and conservation efforts, this study helps safeguard the future of the saltmarsh sparrow and the ecological health of northeastern coastal marshes.
New Hampshire Agricultural Experiment Station; McIntire-Stennis. See full statement.
Despite decades of decline, genetic research in Pennsylvania showed the maintaining ruffed grouse numbers is possible and informed conservation strategies for Pennsylvania’s iconic state bird.
Pennsylvania Agricultural Experiment Station; Hatch. See full statement.
A collaborative study by researchers in New Hampshire and North Carolina produced the first national abundance map of coyotes and revealed that hunting may increase coyote populations by fostering higher reproduction and immigration rates. These are critical insights for wildlife management.
New Hampshire Agricultural Experiment Station, North Carolina State University; McIntire-Stennis. See full statement.
Researchers in New Mexico evaluated the prevalence of shell rot disease among turtles. Results help state and federal agencies manage threatened species, including identification of disease-susceptible populations and guiding captive-breeding planning. Turtle health can also be used as an indicator of water quality, helping target remediation efforts in watersheds throughout the southwestern United States.
New Mexico Agricultural Experiment Station. See full statement.
In New Hampshire, efforts to restore habitat for the endangered New England cottontail rabbit have also enhanced the survival and diversity of several shrubland birds. This study adds to the evidence that targeted habitat protection often has unintended positive impacts on other species.
New Hampshire Agricultural Experiment Station; McIntire-Stennis. See full statement.
Extension efforts in Vermont empowered Vermont landowners, public lands managers, municipal officials, and concerned citizens to take the necessary steps to protect black ash trees from emerald ash borers.
University of Vermont Extension; State Appropriations, Smith-Lever (3b&c). See full statement.
As part of a collaborative effort, researchers in New Mexico tracked when and where lesser long-nosed bats moved across their migratory range. These data help target management of the bat’s food resources and guide safe placement of offshore wind energy.
New Mexico Agricultural Experiment Station. See full statement.
Researchers in Pennsylvania found that early-nesting ducks that nest on cropland in the Prairie Pothole Region are at increased risk, and earlier spring warmups may worsen their situation. This information could help guide agricultural practices to avoid harming duck habitat and nesting sites.
Pennsylvania Agricultural Experiment Station; Hatch. See full statement.
Scientists in New York developed and demonstrated “slash walls,” which are now used widely by private woodland owners, timber companies, state and federal agencies, and others to efficiently and effectively exclude deer from forests to allow regeneration and preserve native wildlife habitat.
Cornell Cooperative Extension, Cornell Agricultural Experiment Station (Ithaca). See full statement.
Tennessee landowners participating in an Extension program on deer management have increased and enhanced habitat not only for white-tailed deer, but also for wild turkey, northern bobwhite, several grassland/shrubland songbird species, and pollinators.
University of Tennessee Extension; USDA Capacity – Extension. See full statement.
Researchers showed that ungulate (hoofed mammal) removal is allowing forests in Guam to recover. Fewer non-native species and more native species are growing in the understory. This study provides evidence that forest restoration managers should prioritize the removal of ungulates to allow native plant species and forests to recover.
University of Guam Western Pacific Tropical Research Center. See full statement.

Microbial diversity essential for ecosystems
Microorganisms are an important part of biodiversity. In soils, microbial diversity plays a vital role in maintaining healthy ecosystems by facilitating key processes. For example, “biocrusts” made up of microorganisms frequently form on the surface of drylands, stabilizing the soil and preventing it from breaking down into dust. Researchers in Pennsylvania developed innovative technologies that allowed new insights into the diverse microbial makeup of biocrusts and will help identify ways to help preserve them, especially as droughts and global dust emissions become more common issues.
Pennsylvania Agricultural Experiment Station; Hatch. See full statement.

View/download PDF.

Photo courtesy of Pennsylvania Agricultural Experiment Station.