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BIOLOGICAL INVASION
In 1905, a Bohemian prince released 5 muskrats into his estate. By 1914, their population had exploded to 2 MillionIntroduced near Prague in 1905, five muskrats quickly proliferated throughout Europe. Utilizing waterways as pathways, these semi-aquatic r...- In 2003, scientists targeted invasive fish in the Grand Canyon. By 2006, Rainbow Trout fell from 90% to less than 10% of the catchFor four consecutive years, scientists actively removed invasive fish species from the Colorado River. This strategic initiative led to a n...
- With wary eye on Russia, Finland runs Europe's largest civil defence exercise since WWIIFinland has initiated an extensive civil defence drill, simulating scenarios of cyberattacks and missile threats to bolster preparedness. B...
- In 1960, Marlon Brando discovered Tetiaroa while filming 'Mutiny on the Bounty'. 66 years later, his 35-villa refuge now combines luxury with conservation and clean energyMore than 66 years after Marlon Brando first discovered Tetiaroa, the island's most enduring legacy may be the idea that paradise is someth...
- In 2012, Cleveland Metroparks surveyed Beecher’s Brook after Ohio listed the Chagrin River as impaired, then restored 350 feet. 8 years later, fish scores improved againBeecher's Brook restoration project removed a fish passage barrier and enhanced habitat. This work led to marked improvements in fish and m...
- In 1950, Australia released the Myxoma virus as biological warfare against its invasive rabbit population. The virus killed 99.8% of infected rabbits within two yearsAustralia grappled with a catastrophic rabbit overpopulation that put its ecosystem and economy at risk. To combat this, scientists unleash...
- America introduced Chinese Privet as an ornamental plant in 1852. It later spread across millions of acres of forestFirst spotted in 1852, Chinese privet has spread relentlessly across the American Southeast, wreaking havoc on local ecosystems. This invas...
- In 2001, USDA researchers released salvinia weevils in Texas and Louisiana; by 2003, weed cover had fallen near release sites while untreated controls stayed chokedA tiny weevil has proven to be a powerful ally in the battle against giant salvinia, an invasive aquatic weed. Tested in Texas and Louisian...
- In 1946, imported beetles were released against toxic St. Johnswort in northern California; by 1957, the weed had fallen to less than 1% of its former abundanceBy the 1940s, European Klamathweed had established itself as a major rangeland threat in California. To combat this invasive species, leaf ...
- Ecological cost of US-Iran war: Scientists warn ships stranded for months in the Strait of Hormuz could now carry invasive species, posing an ‘immense international biosecurity threat’Ships stranded for months in the Strait of Hormuz now pose a bioinvasion risk. These vessels may carry dense communities of marine organism...
- 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...
- Who belongs in women’s sport? The debate over trans athletes deepensRecent WNBA controversy reignited debate on transgender women in sports. Advocacy groups hold differing views on fairness and inclusion for...
- In 1772, Benjamin Franklin sent Chinese tallow seeds to Savannah, Georgia; the government planted more along the Gulf in 1900, and the tree now covers 185,000 hectaresIn the late 1700s, a shipment of 1772 seeds sparked a significant invasion of non-native trees across southern U.S. forests. The federal pl...
- In 1981, Britain wanted to eradicate the invasive coypus which escaped from fur farms and grew to roughly 200,000 in population and damaged crops and wetlands; after years of trapping Britain made them disappear from the countryBritain once had roughly 200,000 coypus after the rodents escaped from fur farms and spread across East Anglia, damaging crops and wetlands...
- In 1990s, Samoa released a predatory flatworm as a weapon against giant African land snails. 49 years later, the predator has outlived its original target-control mission and threatens native snails insteadThe introduction of the predatory flatworm, Platydemus manokwari, to Samoa aimed to tackle the invasive giant African snails. However, this...
- Since 1965, Florida has used the alligatorweed flea beetle to control invasive mats; once established, it can cause them to collapse within about 3 monthsA small but mighty insect, the alligatorweed flea beetle, has proven to be an efficient guardian against the spread of invasive alligatorwe...
- In 1888, USDA sent an entomologist to Australia to collect vedalia beetles for California’s cottony cushion scale; within a year, the pest had sharply declinedThe cottony cushion scale insect threatened California's citrus growers with devastation. The USDA took action by sending a scientist to Au...
- In 1985, the first invasive lionfish spotted off Florida after aquarium release; in three decades, they spread from Gulf of Mexico to the southern CaribbeanThe invasive lionfish, first introduced in the 1980s, has quickly proliferated across the Western Atlantic, extending its reach from Florid...
- In the 1990s, a predatory flatworm was released in Samoa to control giant African snails; it later drove native island snails toward extinctionBiological control efforts introduced the New Guinea flatworm to Pacific islands. This predator began hunting native land snails, pushing t...
- In 1960, Japan’s future emperor took 18 bluegills home from Chicago. Their descendants multiplied into millions and invaded Lake BiwaA significant ecological problem arose from a 1960 gift of bluegills to Japan's Crown Prince Akihito. These fish propagated swiftly, infilt...
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