Florida Climate Institute
Join Us •  E-Newsletter Signup    Follow FCI on Facebook  Follow FCI on Twitter  Follow FCI on LinkedIn
Cross-disciplinary climate research in service of society
  • Home
  • About
    • The Issue
    • Executive Board
    • Staff
  • Events
    • Upcoming Events
      • Florida
      • Other
  • Projects
    • All Projects
    • Ecosystems
      • Agriculture
      • Coastal
      • Terrestrial
    • Natural Resources
      • Climate Sciences
      • Water
      • Energy
      • Land
    • Human Resources
      • Human Dimensions
      • Extension
      • Education
    • Working Groups
  • Resources
    • Data Sets
      • Big Rain Events in SE
      • FISH50
      • Regional Downscaling
      • Seasonal Forecasts
      • Visualization Tool
    • Publications
      • All
      • Journal Articles
      • Reports
      • White Papers
    • Presentations
    • Links
    • Environmental Minute
    • Headline News Archive
    • Newsletters
    • FAQs
  • Opportunities
    • Funding
    • Employment
  • Affiliates
    • List All Affiliates
    • Search By Map
    • Join Us / Register
    • Login
  • Contact

Publications

Home | Show All | Simple Search | Advanced Search | Journal Articles | Reports | White Papers
Login
Quick Search:
...
1-1 of 1 record found matching your query:

toggle visibility
Search within Results:
...
Display Options:

Select All    Deselect All << 1 >>
List View
 | 
Citations
 | 
Details
   print
  Record Links
Author (up) Cohuo, S.; Macario-González, L.; Wagner, S.; Naumann, K.; Echeverría-Galindo, P.; Pérez, L.; Curtis, J.; Brenner, M.; Schwalb, A. url  doi
openurl 
  Title Influence of late Quaternary climate on the biogeography of Neotropical aquatic species as reflected by non-marine ostracodes Type Journal Article
  Year 2020 Publication Biogeosciences Abbreviated Journal Biogeosciences  
  Volume 17 Issue 1 Pages 145-161  
  Keywords SEA-SURFACE TEMPERATURES; LOWLAND CENTRAL-AMERICA; LAGO PETEN ITZA; YUCATAN PENINSULA; RAIN-FOREST; DISTRIBUTION MODELS; LAKE; PLEISTOCENE; PHYLOGEOGRAPHY; GUATEMALA  
  Abstract We evaluated how ranges of four endemic and non-endemic aquatic ostracode species changed in response to long-term (glacial-interglacial cycles) and abrupt climate fluctuations during the last 155 kyr in the northern Neotropical region. We employed two complementary approaches, fossil records and species distribution models (SDMs). Fossil assemblages were obtained from sediment cores PI-1, PI-2, PI-6 and Peten-Itza 22-VIII-99 from the Peten Itza Scientific Drilling Project, Lake Peten Itza, Guatemala. To obtain a spatially resolved pattern of (past) species distribution, a down-scaling cascade is employed. SDMs were reconstructed for the last interglacial (similar to 120 ka), the last glacial maximum (similar to 22 ka) and the middle Holocene (similar to 6 ka). During glacial and interglacial cycles and marine isotope stages (MISs), modelled paleo-distributions and paleo-records show the nearly continuous presence of endemic and non-endemic species in the region, suggesting negligible effects of long-term climate variations on aquatic niche stability. During periods of abrupt ecological disruption such as Heinrich Stadial 1 (HS1), endemic species were resilient, remaining within their current areas of distribution. Non-endemic species, however, proved to be more sensitive. Modelled paleo-distributions suggest that the geographic range of non-endemic species changed, moving southward into Central America. Due to the uncer-tainties involved in the downscaling from the global numerical to the highly resolved regional geospatial statistical modelling, results can be seen as a benchmark for future studies using similar approaches. Given relatively moderate temperature decreases in Lake Peten Itza waters (similar to 5 degrees C) and the persistence of some aquatic ecosystems even during periods of severe drying in HS1, our data suggest (1) the existence of micro-refugia and/or (2) continuous interaction between central metapopulations and surrounding populations, enabling aquatic taxa to survive climate fluctuations in the northern Neotropical region.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1726-4189 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number FCI @ refbase @ Serial 2384  
Permanent link to this record
Select All    Deselect All << 1 >>
List View
 | 
Citations
 | 
Details
   print

toggle visibility
Save Citations:
Export Records:

Home CQL Search  |  Library Search  |  Show Record  |  Extract Citations Help

logo-fau-2Florida International UniversityFlorida State UniversityUniversity of Central FloridaUniversity of Floridalogo-um-2University of South Florida

The Florida Climate Institute (FCI) is a multi-disciplinary network of national and international research and public organizations, scientists, and individuals concerned with achieving a better understanding of climate variability and change.

Copyright © Florida Climate Institute. All rights reserved.