Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Population genetics of the Amazonian tortoises, Chelonoidis denticulata and C. carbonaria, (Cryptodira: Testudinidae) in an area of sympatry

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

We conducted a population genetic analysis of the two Amazonian tortoises, Chelonoidis denticulata (n = 40) and Chelonoidis carbonaria (n = 39) in a region of sympatry within the Xingú River basin. High levels of gene flow among sampled localities indicated lack of population structure for both species. Genetic parameters indicated a moderate level of genetic diversity in C. denticulata and neutrality tests suggested that populations of this species were in demographic equilibrium with respect to mitochondrial DNA. On the other hand, C. carbonaria presented low levels of genetic diversity and a signal of population expansion. Most records of C. denticulata are from areas of humid forest while those for C. carbonaria are from areas of semi-deciduous forests and transitional areas between humid and semi-deciduous forests. Therefore, the demographic expansion observed in C. carbonaria population could reflect an increase in the availability of suitable habitats for this species due to anthropogenic or natural processes. Additionally, we observed haplotype sharing between these two tortoise species indicating hybridization or incomplete lineage sorting.

Affiliations: 1: Departamento de Biologia, ICB, Mini-Campus, Universidade Federal do Amazonas, Manaus, Amazonas; 2: Conservation International do Brasil, Belém, Pará; 3: Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, São Paulo

Loading

Full text loading...

/content/journals/10.1163/156853807781374836
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156853807781374836
Loading

Article metrics loading...

/content/journals/10.1163/156853807781374836
2007-07-01
2016-12-07

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Amphibia-Reptilia — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation