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Humble dung beetles may be ideal DNA detectors for animal surveys

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DNA found inside the guts of dung beetles, such as the giant flattened dung beetle, could one day be used to infer a region’s biodiversity.
Vincent Grafhorst/Minden Pictures
Humble dung beetles may be ideal DNA detectors for animal surveys
Feb. 19, 2021 , 3:00 PM
Biologists wanting to identify the resident creatures of a location, be it nearby woods or a distant mountainside, could soon have new assistants to help them vacuum up a surrounding’s DNA: dung beetles. The guts of these unfussy eaters contain species-identifying mammalian DNA, a study has found, and could provide an easy, low-tech way to catalog regional biodiversity. ....

Vincent Grafhorst Minden , Queen Mary , Rosie Drinkwater , Michael Kinnison , Queen Mary University Of London , Stanford University , University Of Maine , Elizabeth Hadly , Queen Mary University , ராணி மேரி , ரோஸி தண்ணீர் குடி , ராணி மேரி பல்கலைக்கழகம் ஆஃப் லண்டன் , ஸ்டான்போர்ட் பல்கலைக்கழகம் , பல்கலைக்கழகம் ஆஃப் மைனே , ராணி மேரி பல்கலைக்கழகம் ,

New revelations of tiger genomes

A new study reveals differences in the genomic history of tiger subspecies, pointing to the importance of understanding evolutionary history for future conservation ....

Anubhab Khan , Shujin Luo , Uma Ramakrishnan , Kellie Armstrong , National Centre For Biological Sciences , Elizabeth Hadly Of Stanford University , Stanford University , National Centre , Biological Sciences , Molecular Biology , Elizabeth Hadly , Ecology Environment , Population Biology , உமா ராமகிருஷ்ணன் , தேசிய மையம் க்கு உயிரியல் அறிவியல் , ஸ்டான்போர்ட் பல்கலைக்கழகம் , தேசிய மையம் , உயிரியல் அறிவியல் , மூலக்கூறு உயிரியல் , சூழலியல் சூழல் , பாப்யுலேஶந் உயிரியல் ,

Increasingly fragmented tiger populations may require 'genetic rescue'

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Despite being one of the world s most charismatic species, tigers face uncertain futures primarily due to habitat fragmentation, human-wildlife conflict and poaching. As global tiger populations decline, so does their genetic diversity. But until now it s been unclear how the animals dwindling numbers are affecting them at the genetic level.
To find out, researchers at Stanford University, the National Centre for Biological Sciences, India, and various zoological parks and NGOs sequenced 65 genomes from four of the surviving tiger subspecies. Their findings confirmed that strong genetic differences exist between different tiger subspecies but showed, surprisingly, that these differences emerged relatively recently, as Earth underwent a major climatic shift and our own species grew increasingly dominant. ....

Ryan Taylor , Sergio Redondo , Gregory Barsh , Dmitri Petrov , Jonathan Kang , Christopher Kaelin , Stefan Prost , Kellie Armstrong , National Centre For Biological Sciences , Stanford Woods Institute For The Environment , School Of Humanities , Stanford University , National Centre , Biological Sciences , Molecular Biology , Elizabeth Hadly , Billie Achilles Professor , Environmental Biology , Stanford Woods Institute , Pleistocene Ice Age , Russian Far , Stanford Phd , Revolutionary History , Tigers Highlights Contrasting Roles , Genetic Drift , ரியான் டெய்லர் ,

'Indian Tigers have highest genetic variation, but some are inbred' | India News

'Indian Tigers have highest genetic variation, but some are inbred' | India News
indiatimes.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from indiatimes.com Daily Mail and Mail on Sunday newspapers.

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