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CONSEQUENCES OF INTRODUCED PLANT SPECIES
In 1848, California nursery operators brought pampas grass to Santa Barbara; it spread across the state, and one stand can release millions of seeds each yearPampas grass made its debut in California in 1848, admired for its striking appearance as an ornamental plant. However, its vigorous reprod...- America brought yellow flag iris in for gardens; it escaped into wetlands, reached more than 40 states, and now congests water flow while crowding out native plantsThe yellow flag iris, first brought to North America in the 1800s, quickly evolved from an ornamental plant to a widespread ecological thre...
- Researchers removed invasive Japanese stiltgrass from 8 Indiana forest sites; native plant diversity rose 24%, while herbicide-treated plots had 123% greater tree seedling density than controlsThe spread of Japanese stiltgrass across eastern forests poses a significant threat to the diversity of native plants. Research indicates t...
- In 1921, America introduced cogongrass as a forage crop; later used for soil control, the invasive grass now covers more than 1 million acres in FloridaCogongrass was brought to the United States in the early 20th century with the noble goal of supporting agriculture and curbing erosion. Ho...
- In 2002, black rats were eradicated from Hawaii's Mokoliʻi islet; after just one shearwater chick survived from 1999 to 2001, 126 fledged in 2002 and 185 in 2003Mokoliʻi was once severely impacted by invasive black rats, which posed major risks to seabird species. In 2002, after dedicated conservati...
- In 1943, Kentucky released a hardy pasture grass that farmers embraced; today, tall fescue covers an estimated 35 million acres, while its hidden fungus causes costly cattle health problemsIn 1931, tall fescue grass was first found in Kentucky and later spread throughout the eastern United States. While it's advantageous for f...
- In 2006, Maryland couple bought a 116-acre farm. 20 years later, it's home to otters, beavers and dozens of bird speciesMaryland couple Louise and John Durocher originally purchased a vast 116-acre farm for hunting. With time, they stopped farming the land, a...
- Siberian elm was widely planted in America for windbreaks and as a disease-tolerant shade tree; it escaped cultivation and is now considered invasive in 41 statesSiberian elm, initially introduced to American landscapes for its Dutch elm disease resistance, soon proved problematic as it became invasi...
- Amur honeysuckle arrived in America as an ornamental shrub; it later became a major invasive concern in forests across the northern United StatesIntroduced over a century ago, Amur honeysuckle quickly spread across the United States as an ornamental plant, but its aggressive growth h...
- In the 1940s, a California landowner released about three dozen zoo deer at Point Reyes for hunting; by 2002, the two non-native herds had grown to roughly 1,100 animalsPoint Reyes National Seashore grapples with the ecological fallout from non-native deer species that were introduced in the 1940s. These de...
- San Francisco Bay cut invasive cordgrass by more than 97%; native Ridgway’s rails later expanded into restored former salt ponds as marsh habitat returnedIn a promising turn of events, restoration efforts in San Francisco Bay have notably decreased invasive cordgrass numbers, allowing the Rid...
- San Francisco Bay cut invasive cordgrass by nearly 98%; native Ridgway’s rails then expanded into 4 former salt ponds as restored marsh habitat returnedThe San Francisco Bay has seen remarkable advancements in wetland restoration, benefiting the Ridgway's rail population significantly. Whil...
- In 1879, a Michigan professor buried bottles of seeds; 142 years later, scientists opened one and found some could still sproutWilliam James Beal started the experiment. He wanted to understand how long seeds could remain alive in soil without germinating. His work ...
- In 1998, an Iowa couple bought land to restore a lost landscape; 25 years later, it became home to hundreds of plant and wildlife speciesJim grew up on a dairy farm, and spent much of his childhood outdoors. He studies natural sciences teaching and earned a master's degree in...
- Diet Coke gets costlier at Rs 70 per can in Delhi-NCR, Mumbai, Bengaluru and Goa amid aluminium squeezeWith aluminum prices soaring, Coca-Cola's bottlers and retailers in India have escalated the price of Diet Coke dramatically. The cost of a...
- California cleared invasive plants from three Camp Pendleton breeding areas; willow flycatchers resettled at those sites within 5–7 yearsIn 2023, a lone Southwestern Willow Flycatcher was spotted at Marine Corps Base Camp Pendleton, a notable event after an absence since 2012...
- California began removing invasive brook trout near Independence Lake in 2005; a study found young Lahontan cutthroat trout survival increased from 4% to 12%In the Sierra Nevada, Lahontan cutthroat trout have struggled due to competition from non-native brook trout. A study conducted between 200...
- Queen’s Brian May transformed 157 acres of farmland into wildlife sanctuary with 100,000 trees; now serves as an animal rescue centreBrian May's vision, dubbed May's Wood, has transformed agricultural fields in Dorset into a vibrant woodland sanctuary, significantly impro...
- China planted 66 Billion trees to fight desert expansion, and a new study finds they are growing faster than natural forestsChina has planted almost 66 billion trees since 1978 and plans to include another 34 billion by 2050 as part of its major reforestation eff...
- Washington DC homeowner was in a hurry to turn corner lot into wildlife garden. She shares three lessons what went wrongIn the rush to reshape their gardens, homeowners frequently stumble into mistakes. By consulting with neighbors prior to any modifications,...
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