OahuISC

Follow along to learn fun facts about Hawaiian ecosystems and the variety of flora we have here in Hawaiʻi, native or invasive and everything in between.

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Did you know Hawaiʻi receives over 20,000 cargo containers each year, increasing the risk of new invasive species introductions? Even one hitchhiking pest can cause major environmental and economic damage. Learn how inspections and prevention help: https://t.co/X3g8GovD5F

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Did you know invasive species cost Hawaiʻi hundreds of millions of dollars each year in damage and control efforts? They impact agriculture, water resources, infrastructure, and native ecosystems. Prevention starts with all of us: https://t.co/rFmNUptTTm

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Our invasive species teams are out looking across Oʻahu, but we can’t be everywhere. We need your eyes, too.

See a plant, insect, or other pest that looks suspicious?

📸 Snap a photo
📍 Note where you found it
📢 Report it at https://t.co/GIMZePHXZY

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Did you know… what you plant at home can impact nearby forests, farms, and watersheds in Hawaiʻi. Learn more about what you should or shouldn't plant in your garden at: https://t.co/X5aGSzcgJp

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October is Stop the Ant Month! 🐜

Get a FREE ant collection kit at https://t.co/noOKRqpsPk.

Follow along all month for ant-related events, information, and ways to get involved!

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Join our crew and help protect our community from invasive species! 🌿 We're seeking a dedicated individual for a full-time Field Crew Leader position.

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Did you know once invasive species spread, long-term control can cost millions of dollars each year in Hawaiʻi? Prevention and early reporting are far more effective and affordable. Learn how you can help: https://t.co/rFmNUpurIU

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Did you know invasive species are a leading cause of native species extinction in Hawaiʻi? They outcompete native plants and animals, damage habitat, and spread quickly. Learn how to prevent their spread and protect our ecosystems: https://t.co/SYj41Vr3Fe

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Did you know… protecting Hawaiʻi’s forests helps prevent sediment runoff that smothers coral reefs downstream. Learn more at: https://t.co/OHBh3l0Rzz

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Did you know… protecting native forests in Hawaiʻi reduces flooding, erosion, and reef-damaging runoff.
https://t.co/hhpTYMURcS

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Not all native plants need flowers to steal the show.

These textured leaves belong to ʻōhiʻa papa (Metrosideros rugosa), a native Hawaiian tree found only on O’ahu. This strong tree survives the wind-swept peaks in the Koʻolaus.

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Did you know… over 90% of Hawaiʻi’s native species are found nowhere else on Earth, making them highly vulnerable to invasive species. Learn more at: https://t.co/GPCvFZ2Ffb

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Join Us Sat. 6/27 for Devil Weed Removal! Help us keep the Pūpūkea-Paumalū trail system clear of devil weed, an aggressive invasive that spreads fast and far.

🔗 Sign-up required: https://t.co/wW3pDUcVvr
👕 Volunteer with us 3 times and score a free Devil Weed Crew T-shirt!

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Did you know… protecting native forests in Hawaiʻi reduces flooding, erosion, and reef-damaging runoff. Learn more at: https://t.co/hhpTYMUjnk

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Did you know...Choosing non-invasive plants helps prevent future invasions that are nearly impossible to remove once established. Many plants sold or planted without enough thought can escape cultivation, spread into natural areas, and take over entire ecosystems.

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Did you know… invasive species have contributed to more than 100 native extinctions in Hawaiʻi? Early detection is our best chance to stop the next one.

Learn more at: https://t.co/SYj41Vr3Fe

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🌿 Is it cane tibouchina or a lookalike? One plant commonly confused with invasive cane tibouchina is Arthrostemma, a smaller plant in the melastome family that also has purple flowers.

📸 Take a photo, note the location, and upload your report to https://t.co/rHrSkmwT3N.

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Have you seen this plant in the Koʻolaus? If you think you’ve found cane ti:

• Do NOT pull or cut it
• Take a photo and note the location
• Report it to https://t.co/rHrSkmwT3N

Early detection helps protect Oʻahu’s watersheds and native species. 🌱

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Webinar happening at 9am Monday!

Marine invasive species are changing Hawaiʻi’s reefs and response teams are racing to keep up. Join this HISAM 2026 webinar to hear how researchers are developing real-world control tools using some surprisingly creative methods. 🌊🪸

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Did you know…Across Hawaiʻi, invasive grasses dominate many low-elevation areas, creating fast-burning fuel that significantly increases wildfire risk. Learn more at…https://t.co/WI7cTpFc97