November 28, 2020
Mouse hanging out atop volcano called world's highest-dwelling mammal

Mouse hanging out atop volcano called world’s highest-dwelling mammal


mouse-web

This is the record-breaking yellow-rumped leaf-eared mouse captured near the summit of the Llullaillaco volcano on the border of Chile and Argentina. 


Marcial Quiroga-Carmona/Austral University of Chile

The world’s highest summits aren’t as desolate as scientists once thought. During a mountaineering expedition in northern Chile earlier this year, researchers spotted and captured a yellow-rumped leaf-eared mouse atop the 22,000-foot summit of Volcan Llullaillaco.

The mouse broke the world record for the highest-dwelling mammal documented by scientists to date. Last year, the same species of mouse was spotted at 20,340 feet

In a study published Thursday in the journal Proceedings of the National Academy of Sciences, university researchers from the US and Chile document their rodent discovery and explain that it could help scientists better understand how mammals adapt to and survive harsh conditions at high altitudes.

graph

This high-altitude survey map shows the places visited during the expedition to capture rodents, which include (A), Volcan Llullaillaco (B), Region de Antofagasta, Chile. (C) is a view of Volcan Llullaillaco from the west.


Jay Storz

“The discovery suggests we may have generally underestimated the altitudinal range limits and physiological tolerances of small mammals simply because the world’s highest summits remain relatively unexplored by biologists,” the study says.

The yellow-rumped leaf-eared mouse (Phyllotis xanthopygus rupestris) dwells high in the Andes mountains but also lives at sea level, which makes it an interesting mammal for scientists to study. 

“That wide of a range is extraordinary,” Florida State University biology professor Scott Steppan told National Geographic. “No other species does that.”

University of Nebraska biologist Jay Storz led the recent expedition that found the yellow-rumped leaf-eared mouse at the highest point. Even though Storz and his team set small traps to capture rodents for study, he actually caught the mouse atop of the 22,000-foot summit by hand when he spotted it scurrying under a rock.

“In one of the harshest environments on Earth — considered by some as the closest thing on our planet to Mars — these mice not only survive but apparently thrive,” Steppan said in a statement. “This astonishing elevation shows to what extremes life is capable of.”

Professional mountaineer Mario Perez-Mamani, who accompanied Storz on the expedition, captured the mouse-catching moment on video.

The yellow-rumped leaf-eared mouse wasn’t the only rodent breaking records on Storz’s expedition. He also found a Lima leaf-eared mouse (Phyllotis limatus) at 16,633 feet. That surpassed previous altitude-dwelling records for this species.



Source link

11 thoughts on “Mouse hanging out atop volcano called world’s highest-dwelling mammal

  1. Nothing he said is wrong. Thats the wrong statement to make when you have zero idea what someone has went through. And then Skip Bayless? Who actually takes any ounce of what he says seriously. He is for shock just like Max Kellerman and Colin Cowherd

  2. Link exchange is nothing else however it is only placing the other person’s web site link on your page atappropriate place and other person will also do similar in favor of you.Nba 2k19 Locker Codes hack ios

  3. With havin so much content and articles do you ever run into any issues of plagorism or copyrightviolation? My site has a lot of exclusive content I’ve either created myself or outsourced but it appears a lot ofit is popping it up all over the internet without my permission. Do youknow any methods to help stop content from being ripped off?I’d genuinely appreciate it.

  4. is a trusted QQ Poker Online and Bandar Ceme Online wagering site that supplieson-line card games such as Online Texas Hold’em, DominoQQ, CapsaOnline, Ceme Online, Ceme99, Online Betting Online Texas Hold’em Sites.QQ Casino Poker Ceme, the most effective as well assafest on the internet poker representative site with24 hr IDN Online Casino poker solution. For those of you Lovers of the game Online Online and whowant to play gambling Online Texas hold’em, Online Ceme, Domino QQ,City Ceme, Online Gaming, Bandar Capsa Online in 1 ID

Leave a Reply

Your email address will not be published. Required fields are marked *