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📰 The quick summary: California scientists are creating a comprehensive DNA barcode library of the state’s estimated 30,000-35,000 insect species, providing an essential baseline to track biodiversity changes and inform future conservation efforts.
📈 One key stat: Some areas in the Mojave Desert and Southern California Mountains could host over 8,000 insect species per square kilometer, revealing unexpected hotspots of biodiversity in seemingly barren landscapes.
💬 One key quote: “You could visit any vegetated area across that state and potentially collect several new (undiscovered and unnamed) insect species,” says Austin Baker, who leads the California Insect Barcode Initiative.

1️⃣ The big picture: Scientists across California have launched an ambitious project to create genetic barcodes for every insect species in the state – potentially 30,000 to 35,000 different creatures. Led by Austin Baker at the Natural History Museum of Los Angeles County, the California Insect Barcode Initiative is meticulously collecting and sequencing DNA from insects across diverse ecosystems from foggy coasts to desert dunes. The project combines traditional specimen collection with cutting-edge genetic sequencing to build a comprehensive library of California’s insect diversity. By cataloging this wealth of often-overlooked biodiversity, researchers aim to establish a crucial baseline for tracking environmental changes and identifying conservation priorities.

2️⃣ Why is this good news: This massive documentation effort creates the first comprehensive inventory of California’s insect life, capturing countless species before they potentially disappear unnoticed. Scientists can now precisely identify biodiversity hotspots, including surprising areas like the Mojave Desert where over 8,000 species may inhabit a single square kilometer. The genetic library provides an essential baseline to monitor future ecosystem changes, allowing researchers to track population shifts, range expansions, and extinction risks. These insects form the foundation of countless food webs and deliver critical ecosystem services from pollination to decomposition, making their preservation vital for maintaining California’s environmental health.

3️⃣ What’s next: Researchers will continue sampling across all EPA-defined ecoregions in California, deploying passive traps that can remain in place for months to capture seasonally-active insects. The team plans to compare newly collected DNA sequences with museum specimens to identify and name previously undiscovered species. With this baseline established, conservation authorities can begin prioritizing protection efforts for the most threatened insect populations and habitats.

Read the full story here: Mongabay – California’s grand insect census