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Field Museum Scientists Use DNA to Unlock Extinction Mystery of Xerces Blue Butterfly


Was the elegy misguided?
The Xerces status as a distinct species, as opposed to being a sub-population of another non-extinct butterfly, has been questioned by some for decades.
In a new study published in Biology Letters, researchers at the Field Museum were able to put a definitive end to those doubts, confirming that the Xerces blue was indeed a unique species, albeit one now also confirmed as extinct.
“It’s interesting to reaffirm that what people have been thinking for nearly 100 years is true, that this was a species driven to extinction by human activities,” said Felix Grewe, co-director of the Field’s Grainger Bioinformatics Center and the lead author of the Biology Letters paper on the project. ....

Felix Grewe , Robert Michael Pyle , Corrie Moreau , Mark Jerome Walters , Golden Gate National Recreation Area , Courtesy Of Field Museum , Field Grainger Bioinformatics Center , Cornell University Insect Collections , Xerces Society , Field Museum , Biology Letters , Grainger Bioinformatics Center , San Francisco Bay , Golden Gate National Recreation , West Coast , Presidio Trust , ராபர்ட் மைக்கேல் பைல் , கோரி மேலும் , தங்கம் வாயில் தேசிய பொழுதுபோக்கு பரப்பளவு , புலம் அருங்காட்சியகம் , உயிரியல் எழுத்துக்கள் , க்ரேயிஂகர் உயிர் தகவலியல் மையம் , சான் பிரான்சிஸ்கோ வளைகுடா , தங்கம் வாயில் தேசிய பொழுதுபோக்கு , மேற்கு கடற்கரை , பிரெசிதிிஓ நம்பிக்கை ,

Presidio Trust Public Board of Directors Meeting


Online via Zoom on Wednesday, July 21, 6 PM to 8 PM
Published July 14, 2021 •
Updated on July 14, 2021 at 3:14 pm
The Presidio Trust
The Presidio Trust Board of Directors will hold a public board meeting online on Wednesday, July 21 from 6 p.m. to 8 p.m. The Presidio Trust, the National Park Service, and the Golden Gate National Parks Conservancy will all provide park updates and there is an opportunity for the public to offer comments.
The meeting will be held online via Zoom. Guests must register in advance by clicking here. After registration, a confirmation with the link to the meeting will be sent via email. To see the event listing on the Presidio Trust calendar, please click here. ....

Pamela Smith , Golden Gate National Parks Conservancy , National Park Service , United State Park Police , Presidio Trust , Presidio Trust Board Of Directors , Presidio Trust Board , Chief Pamela Smith , United State Park , Trust Update , Park Service , பமீலா ஸ்மித் , தங்கம் வாயில் தேசிய பூங்காக்கள் பழமைவாதம் , தேசிய பூங்கா சேவை , ஒன்றுபட்டது நிலை பூங்கா போலீஸ் , பிரெசிதிிஓ நம்பிக்கை , பிரெசிதிிஓ நம்பிக்கை பலகை ஆஃப் இயக்குநர்கள் , பிரெசிதிிஓ நம்பிக்கை பலகை , பூங்கா சேவை ,