Catenazzi Lab
  • Home
  • Research
    • New species
  • Education
  • Members
  • Publications
  • News
  • Contact

News

Salamanders like it cold

6/3/2016

1 Comment

 
Picture
A lab contribution published last week investigates the ecological implications of metabolic resilience at cold temperatures for salamanders. This research combined field measurements of environmental and body temperatures of field active European fire salamanders, including of animals walking on snow (see pictures and video) taken with infrared cameras, with laboratory measurements of heart rate (a proxy for aerobic metabolism) dependency on body temperature. Salamanders were only active at low to moderate temperatures not exceeding 16C, and although heart rate initially decreased linearly as temperatures were lowered, starting at 8C such rate of decrease became increasingly smaller such that at near freezing temperatures salamanders still had heart rates similar to those recorded at body temperatures of 6-8C. Winters, when fire salamanders are mostly active, are becoming warmer and shorter, and the increasing number of days of above-freezing temperatures will allow greater opportunities for field activity - and thus greater energetic demands for these animals. 

1 Comment
Julien Perrot link
7/2/2018 11:36:02 am

Salut Alessandro! Je prépare une nouvelle fois un numéro de mon magazine consacré à cet animal extraordinaire. Et je suis heureux d'être tombé sur cette info intéressante qui me montre que tu es toujours resté un peu amoureux des salamandres tessinoises. J'espère que tu vas bien. Ton vieil ami Julien de Neuchâtel...

Reply



Leave a Reply.

    Archives

    March 2023
    February 2023
    January 2023
    December 2022
    November 2022
    October 2022
    September 2022
    August 2022
    July 2022
    June 2022
    May 2022
    April 2022
    March 2022
    February 2022
    January 2022
    December 2021
    November 2021
    October 2021
    September 2021
    August 2021
    July 2021
    June 2021
    May 2021
    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    August 2020
    July 2020
    June 2020
    May 2020
    April 2020
    March 2020
    February 2020
    January 2020
    December 2019
    November 2019
    October 2019
    September 2019
    August 2019
    July 2019
    June 2019
    May 2019
    April 2019
    March 2019
    February 2019
    January 2019
    December 2018
    November 2018
    October 2018
    September 2018
    August 2018
    July 2018
    June 2018
    May 2018
    April 2018
    March 2018
    February 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    August 2017
    July 2017
    June 2017
    May 2017
    April 2017
    March 2017
    February 2017
    December 2016
    November 2016
    October 2016
    September 2016
    August 2016
    July 2016
    June 2016
    May 2016
    April 2016
    March 2016
    February 2016
    January 2016
    December 2015
    November 2015
    October 2015
    September 2015
    August 2015
    July 2015
    June 2015
    May 2015
    April 2015
    March 2015
    February 2015
    January 2015
    December 2014

    CATENAZZI LAB

    News from the lab

    Categories

    All

    RSS Feed

Catenazzi Lab

11200 SW 8th Street, Department of Biological Sciences
Florida International University
Miami, FL 33199

Contact Us