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AQUATIC PLANTS RECOVERY
In 1991, scientists used red dye to trace weedkiller in a Washington river choked by milfoil; the study reported a 99% decline in milfoil and up to 1,000% more native plantsResearchers used a red dye to precisely track herbicide application in Washington's Pend Oreille River. This innovative method allowed for ...- In 2018, Buffalo moved 56,000 cubic yards of mud dug from its waterways to Unity Island; habitat quality rose 128.8%, and fish species doubledOnce thought to be lifeless, the Buffalo River is undergoing a remarkable transformation, showcasing the power of ecological restoration. E...
- Utah moved Beavers into a dying river to restore it. Six years later, the results were not what scientists expectedResearchers relocated beavers to Utah's arid Price and San Rafael rivers in 2019. Many animals did not survive, while some built dams at re...
- Ancient DNA reveals how farming, wildlife and human activity transformed a Canadian lake's ecosystem over 1,000 yearsAncient DNA from Crawford Lake sediment reveals a millennium of ecological history. Scientists tracked changes in plants, animals, and huma...
- In 2004, Iowa listed Easter Lake for murky water. 20 years later, restoration helped it meet water standards and park visits climbed from 500,000 to 1.3 million visitorsEaster Lake in Des Moines was listed as impaired in 2004 because sediment and cloudy water were damaging its quality. Two decades of restor...
- Nearly 200 years after bison were hunted to extinction in northern Mexico, 47 were reintroduced in 2025, and are now helping prevent wildfires and regenerate their lost ecosystemIn a remarkable conservation effort, 47 American bison have been reintroduced to Mexico's Cuatrociénegas region after vanishing for nearly ...
- In 2002, Kansas listed the North Cottonwood River for copper pollution. 12 years later, farm conservation helped lower copper from 14.1 to 3.5 µg/L and restore the riverNorth Cottonwood River restoration: Kansas listed the North Cottonwood River as impaired by copper pollution in 2002. Agricultural runoff w...
- In 2021, an Oregon farmer turned 70 acres of his barley farm into a wetland. Four years later it attracts thousands of birds and helps endangered fish surviveIn Oregon, a farmer has transformed seventy acres of barley into a thriving managed wetland, fostering a habitat for countless waterfowl an...
- In 1950, livestock viruses drove the Serengeti's wildebeest herd down to 300,000. Less than a decade later, it surpassed 1.5 million, helping turn the ecosystem into a carbon sinkIn the 1950s, rinderpest and livestock disease pushed the Serengeti’s wildebeest herd to dangerously low numbers. After the virus was broug...
- In 1997, US Army began Maryland's oyster restoration partnership in Chesapeake Bay. 24 years later, about 600 acres of new oyster bars had been created across MarylandMaryland partnership formally began with the project cooperation agreement executed in February 1997. Restoration sites eventually included...
- In 2023, North Carolina's Catawba Lands Conservancy took on 80 acres damaged by erosion and invasive plants. 3 years later, the project aims to bring 1,000 people into restoration nearbyCatawba Lands Conservancy is restoring eighty acres within Mountain Creek Park. This project addresses soil erosion and invasive plant spec...
- In 1963, officials counted just 417 nesting pairs of bald eagles as DDT drove them toward extinction. 44 years later, 9,789 pairs helped secure national symbol delistingThe bald eagle, once near extinction, has made a remarkable recovery. Habitat protection and the banning of DDT significantly aided their p...
- In 2019, Pennsylvania completed AMD abatement at Fran Camp Run No. 2 Mine, restoring 1.4 miles of Cooks Run. 7 years later, pH and metal impairments were finally clearedAn abandoned Pennsylvania coal mine cleanup project significantly improved Cooks Run water quality. The 2019 abatement project addressed ac...
- In 2014, East Bay Regional Park District began restoring Dotson Family Marsh, creating channels that reconnected it to the San Francisco Bay. 6 years later, tidal wetlands had returnedHistory of Dotson Family Marsh helps explain why its recovery matters. The broader 150-acre property was acquired by the East Bay Regional ...
- In 1994, Idaho listed Rapid Creek for sediment impairment. 18 years later, restoration improved habitat scores and Lower Rapid Creek was removed from the 2012 impaired waters listRapid Creek in southeastern Idaho offers a compelling example of how long-term watershed restoration can transform water quality and aquati...
- In 2016, NYSDEC and partners removed Shapp Pond Dam after 50 years of blocking migratory fish. 4 years later, restored habitat showed significant gains in stream health and wildlifeThe removal of the Shapp Pond Dam in Dutchess County, New York, helped restore aquatic connectivity and improve stream habitat along the Ea...
- In 1998, New York listed Keuka Lake as impaired after DDT contamination. 16 years later, fish-tissue data led officials to remove the lake from the impaired waters listKeuka Lake DDT cleanup shows how a pesticide banned decades ago kept affecting fish through contaminated soil and runoff. The problem began...
- In 2004, community partners began tackling Kent Park Lake's nutrient and sediment pollution. 20 years later, the lake met water quality standards and was removed from Iowa's impaired-waters list in 2024Kent Park Lake restoration took 20 years to deliver a result Iowa officials could finally recognize. The lake once struggled with nutrient ...
- In 2016, researchers restored 452 meters of Maryland's Muddy Creek with woodchips, sand and gravel. 2 years later, monitoring found suspended sediment fell 73.8%, improving stream functionMuddy Creek is a tributary of the Rhode River and flows through the Smithsonian Environmental Research Center, an important site for ecolog...
- In 1992, engineers began protecting 55 km of Ottawa River shoreline with local rounded gravel. 19 years later, 80–90% of the banks were covered by indigenous vegetationOttawa River banks were protected using rounded granular material over fifteen years ago. This method halted erosion and created a riparian...
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