Mariana Fuentes' Research Group
  • Home
  • People
    • Mariana Fuentes >
      • Services
      • Conference Presentations
      • Advisor
      • Awards
    • Postdoctoral and Professional Researchers
    • Graduate Students
    • Undergraduate Students
    • PhD Committee Advisees
    • Visiting Scientists and Students
    • Alumini
  • Research
    • Marine mega-fauna in a changing world
    • Resilience of marine mega-fauna
    • Prioritization of resources
    • Spatial ecology of marine mega-fauna
    • Other themes of interest
  • Publications
    • Journal Articles
    • Book and Book Chapters
    • Reports
  • Outreach
    • Educational Books
    • Educational Videos
    • Educational Material - Climate Change and Sea turtles in Florida
    • Popular Articles
    • Media
  • Teaching
  • Prospective Students
  • News
  • Funding

A new season : assessing the impacts of climate change on marine turtles in Brazil

11/12/2015

0 Comments

 
In conjunction with Projeto Tamar, this project explores the impacts of climate change on the reproductive output of hawksbill and loggerheads turtles nesting in Brazil.  This is the third year of the project where we are obtaining information on the thermal profile of index hawksbill and loggerhead turtle nesting beaches in Brazil to explore the spatio-temporal variability of  their hatchling sex ratio. Marine turtles have temperature-dependent sex determination, where their sex ratio is determined by the nest temperature. Projected increases in temperature may skew sea turtle population′s sex ratios towards predominantly females.In the context of global warming and predicted skew in marine turtle population sex ratios it is important to have knowledge of the current and future sex ratio of hatchlings being produced by marine turtle populations. This information is critical to provide a baseline in advance of global warming, to elucidate implications from future extreme female sex biases and to help identify areas that produce a higher proportion of male hatchlings, which will be essential to inform conservation in the context of extreme female sex biases.  However, usually there is a lack of wide-scale, long-term information on primary sex ratios as a baseline to infer changes from global warming and to identify nesting areas of high conservation value.

To obtain this information, we deployed 60 temperature dataloggers along the whole extent of nesting areas and environments used by hawksbill and loggerhead turtles in Brazil. Thermal profile will be monitored over three years and will be used to estimate the current sex ratio being produced at each location. This will be coupled with climate models to predict future sex ratio and to help prioritize management in light of global warming.

More information about the project can be found at:
  • Estudo investiga impactos de mudanças climáticas em tartarugas marinhas
  • Nova fase de estudo analisa impactos de mudanças climáticas em tartarugas marinhas
  • Pesquisa identifica praias com alta produção de machos de tartaruga-cabeçuda no Atlântico Sul
0 Comments

    Archives

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

    Categories

    All

    RSS Feed