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Mohammed, Ryan Simon, van Oosterhout, Cock 
ORCID: https://orcid.org/0000-0002-5653-738X, Schelkle, Bettina, Cable, Joanne and McMullan, Mark
(2012)
Upstream guppies (Poecilia reticulata, Peters, 1859) go against the flow.
Biota Neotropica, 12 (3).
pp. 68-72.
ISSN 1678-6424
Abstract
Guppies (Poecilia reticulata Peters 1859) in lakes and from captive-bred populations are predicted to show little rheotaxis compared to conspecifics in a stream environment that are regularly exposed to fash foods associated with involuntary downstream migration. Here we test this hypothesis using an artificial stream, examining guppies of two wild riverine populations, one lake population, and one ornamental strain. Guppies from the most upstream riverine habitat show the most pronounced rheotaxis and are less likely to be swept downstream during fooding events. However, there is no significant difference between guppies from the lowland riverine habitat, the Pitch Lake and ornamental strain. We propose that station-keeping behaviours are most strongly selected in the upstream population because large spatial differences exist in ecology and environment between up- and downstream habitats. Given that these sites are separated by barrier waterfalls that prevent compensatory upstream migration, natural selection operates particularly strong against upstream guppies that have been displaced downstream during fooding events.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | guppy (poecilia reticulata),migration,natural selection,rheotaxis,swimming behaviour,ecology, evolution, behavior and systematics ,/dk/atira/pure/subjectarea/asjc/1100/1105 |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 05 Aug 2026 07:40 |
| Last Modified: | 05 Aug 2026 07:40 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/103990 |
| DOI: | 10.1590/S1676-06032012000300006 |
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