HOME >> BIOLOGY >> NEWS
Bigger isn't always better--especially if you're a rodent

Voles are pedestrians, too, and need just as much help crossing the road as the big animals, says new research from the University of Alberta.

"There has been a mindset that bigger is better--driven by research on large mammals and especially bears," said Dr. Colleen Cassady St. Clair, from the Department of Biological Sciences. "This research shows that small affordable culverts, which can be placed with high frequencies while building roads, are very effective conduits for small mammals."

The study, recently published in the Journal of Applied Ecology, investigated how small mammals--meadow voles, red-backed voles and deer mice--used crossing structures built across the Trans-Canada Highway. Cassady St. Clair and graduate student Wayne McDonald looked at size, vegetative cover at the entrances of the structures and the distance from home ranges to determine what kind of structures the animals would use the most.

The team captured the animals on one side of the crossing structure several different times to ensure that they had residency at that spot. They then moved them to the other side of the structure and released them--giving them a motivation to return "home." Before the release the researchers coated the animals with fluorescent dye so that, with a black light, they could monitor their return paths.

"We were apprehensive about the possibility that this manipulation would set animals up to be killed while trying to cross the road," said Cassady St. Clair. "However, we reasoned that they have to do this anyway as part of living beside a highway and we wanted to know how hard it is for them to cross. They appear to be pretty good at it. Not a single animal died in the two years of study and those that were not able to return on their own were captured and returned by Wayne."

The bottom line, says Cassady St. Clair, is that small covered culverts, which offer protection from other animals, are better for these tiny mamma
'"/>

Contact: Phoebe Dey
phoebe.dey@ualberta.ca
780-492-0437
University of Alberta
15-Mar-2004


Page: 1 2

Related biology news :

1. Bigger betas are better Protein found to provide pancreatic cells with protection against diabetes
2. Spray Forming Aerospace Alloys For Bigger Aircraft
3. New Sunspot Cycle To Be Bigger Than Average
4. Mapping The Way To A Bigger Prawn
5. Bigger Biology Tackled Through Keyboards
6. Two warbler species find the West isnt big enough for both of them
7. Meow isnt language, but enough to manage humans
8. Why isnt the neural tube defects rate lower?, asks March of Dimes
9. Caffeine in colas: The Real Thing isnt the taste
10. Once a renin cell, always a renin cell
11. Dont always believe what you see, suggests study on false memories

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/10/2020)... ... July 09, 2020 , ... Today CJ BIO announced the ... share insight on the “fifth taste” phenomenon that is revolutionizing ingredient mixes, nutritional content ... will be live on Monday, July 13, 2020 at11:00 AM (CDT) during SHIFT20, the ...
(Date:7/1/2020)... ... 2020 , ... Catalent, a global leader in clinical supply ... facility in Minakuchi, located in the Shiga prefecture of Japan. , Operating in ... new 60,000-square-foot facility will provide customers with flexible clinical supply solutions, serving both ...
(Date:6/25/2020)... ... June 24, 2020 , ... eClinical ... clinical data services that accelerate drug development, is collaborating with Karyopharm Therapeutics (Nasdaq: ... in hospitalized patients with severe COVID-19. This is the first study of an ...
Breaking Biology News(10 mins):
(Date:7/10/2020)... , ... July 09, 2020 , ... ... cell therapy, today announced the hiring of Allen R. Nissenson, M.D., F.A.C.P., as ... oversee the clinical development of Sentien’s lead product, SBI-101. Dr. Nissenson serves ...
(Date:7/7/2020)... , ... July 06, 2020 , ... ... Awards. Entries from Roche, Eli Lilly, Bristol-Myers Squibb, the University of Chicago, Massachusetts ... Bio-IT World has hosted an elite awards program, highlighting outstanding examples of how ...
(Date:7/1/2020)... (PRWEB) , ... June 29, 2020 , ... ... access to competitively procured purchasing contracts to its membership, recently named BioFit ... TIPS members with the opportunity to purchase ergonomic seating, cafeteria tables, book trucks ...
(Date:6/28/2020)... LAGUNA NIGUEL, Calif. (PRWEB) , ... June 25, 2020 , ... ... today announced the launch of Safe Space™ for businesses of all types to ensure ... and 3D LiDAR. , A Safe Space™ enabled business will provide a ...
Breaking Biology Technology:
Cached News: