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TREE OF HEAVEN INVASIVE SPECIES
Why are some mountain trees moving downhill as the planet warms? Scientists may have an answer- Invasive tree of heaven is helping spotted lanternflies spread across US by feeding them its toxic sap; here’s why scientists are using it as a trap
- Khijadiya Bird Sanctuary emerges Black-Necked Stork's key breeding site
- A tiny Yemeni island, Socotra’s strange dragon’s blood trees harvest moisture from fog to survive extreme aridity; 90% of its reptiles and 95% of its land snails are found nowhere else, creating an ecosystem unlike any otherSocotra island boasts unique plants and animals that evolved in isolation. Its dragon's blood trees and cucumber trees store water and have...25 Aug, 2026, 04.49 PM IST
- Beginning in 1877, Japan imported California rainbow trout for food and sport fishing; escaped fish later competed with native salmonids and disrupted their spawning groundsIn 1877, Japan imported rainbow trout from California for culinary and recreational purposes. However, these fish escaped their aquaculture...25 Aug, 2026, 03.36 PM IST
- 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...25 Aug, 2026, 02.00 PM IST
- In 1970s, silver carp were brought to the US for aquaculture. Now the jumping fish threaten a $20 billion Great Lakes industryInvasive silver carp are rapidly approaching the Great Lakes, raising alarm over potential ecological and economic damage. The recent detec...24 Aug, 2026, 07.12 PM IST
- 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...21 Aug, 2026, 10.49 PM IST
- 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...21 Aug, 2026, 06.40 PM IST
- 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...20 Aug, 2026, 04.35 PM IST
- In 1914, USDA researchers imported Australian melaleuca seeds into the United States. 100 years later, the fast-growing tree had conquered 500,000 acres of South Florida after being planted to help dry the EvergladesAustralian melaleuca seeds were imported to the United States in 1914 for agricultural purposes. Later, the Army Corps of Engineers planted...20 Aug, 2026, 01.11 AM IST
- 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...19 Aug, 2026, 06.58 PM IST
- In 1500s, Spanish explorers introduced pigs into North America. Now areas where they roam free have fewer invasive speciesAlthough wild pigs have long been viewed as destructive invasive species, recent findings reveal they also play a surprising role in curbin...18 Aug, 2026, 05.44 PM IST
- In 1917, botanist Joseph Rock introduced albizia to Hawai‘i for reforestation. Now it has infested thousands of acres in O‘ahu and eastern Hawai‘i IslandIntroduced to Hawaii in 1917 as a solution for reforestation, the Albizia tree quickly established itself as an invasive species. By 2018, ...17 Aug, 2026, 07.56 PM IST
- Since 1997, Florida has released Australian insects to help control melaleuca in the Everglades; its invaded range has shrunk by nearly 75% alongside herbicide and mechanical removalIn Florida's Everglades, Australian insects played a crucial role in curbing the spread of invasive melaleuca trees. By targeting these tre...14 Aug, 2026, 04.20 PM IST
- In 1955, Hawaiʻi released a predatory snail to control giant African snails; it climbed into native forests and helped wipe out rare tree snailsIn Hawaii, the introduction of the rosy wolfsnail was intended to combat a pest, but it drastically backfired. Instead of targeting its int...14 Aug, 2026, 03.10 PM IST
- The hidden owl war: An invasive owl is conquering ancient forests, putting the threatened northern spotted owl at even greater riskInvasive barred owls are occupying ancient forests vital for northern spotted owls. These aggressive competitors concentrate in the exact h...13 Aug, 2026, 10.20 PM IST
- In 1920, Washington planted 507 Norway maples along 16th Street to honor its war dead; the invasive species later spread into Rock Creek ParkIn 1920, Washington DC planted Norway maples as a tribute to World War I veterans. Initially seen as a living memorial, these trees became ...13 Aug, 2026, 04.00 PM IST
- In the early 1970s, Maui planted miconia for its spectacular purple leaves; its descendants spread across East Maui and threatened native forest watershedsIntroduced to Maui in the 1970s, Miconia calvescens, known as the velvet tree, has emerged as a significant invasive species. Its swift spr...13 Aug, 2026, 03.50 PM IST
- Around 1745, America imported mimosa for its fragrant pink flowers; it later spread into forests across the southern USMimosa, an ornamental tree brought from Asia in the mid-18th century, has thrived in the American South, but its aggressive spread poses a ...13 Aug, 2026, 03.30 PM IST
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