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

Evidence for Evolution of Guppies in a Semi-Natural Environment

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

image of Netherlands Journal of Zoology
For more content, see Archives Néerlandaises de Zoologie (Vol 1-17) and Animal Biology (Vol 53 and onwards).

In Burgers' Zoo (Arnhem, the Netherlands) a large enclosure was build to mimic a tropical rain forest. In this so called 'Bush' several ponds exist in which guppies (Poecilia reticulata) can be found. One of these ponds contains caymen and is therefore in a secluded area of the Bush were other animals can not enter. Among these other animals are snakebirds (Anhinga melanogaster) which in the rest of the Bush predate on guppies devouring up to a 1000 guppies a day. After several years it became noticeable that the guppies which were initially from the same stock, differed between the Cayman pond (without predation) and the Seacow pond (with predation). The two populations showed marked differences in length and colouration. Young from both stock were then raised under identical conditions and were still found to differ. This leads to the conclusion that some of the differences are genetical and therefore the result of evolution within this semi-natural environment. The speed of these changes are compatible to what has been published about wild guppies. Also differences in behaviour between the two populations were ascertained.

Affiliations: 1: Ethology & Socio-ecology Group, Utrecht University, P.O. Box 80086, 3508 TB Utrecht, The Netherlands

10.1163/156854200X00171
/content/journals/10.1163/156854200x00171
dcterms_title,pub_keyword,dcterms_description,pub_author
6
3
Loading
Loading

Full text loading...

/content/journals/10.1163/156854200x00171
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156854200x00171
Loading

Article metrics loading...

/content/journals/10.1163/156854200x00171
2000-01-01
2016-12-10

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:
     
    Netherlands Journal of Zoology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation