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Influence of environmental conditions on the distribution of Central Asian green toads with three ploidy levels
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Evolutionary Biology.
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2011 (English)In: Journal of Zoological Systematics and Evolutionary Research, ISSN 0947-5745, E-ISSN 1439-0469, Vol. 49, no 3, 233-239 p.Article in journal (Refereed) Published
Abstract [en]

We studied the distribution of Palearctic green toads (Bufo viridis subgroup), an anuran species group with three ploidy levels, inhabiting the Central Asian Amudarya River drainage. Various approaches (one-way, multivariate, components variance analyses and maximum entropy modelling) were used to estimate the effect of altitude, precipitation, temperature and land vegetation covers on the distribution of toads. It is usually assumed that polyploid species occur in regions with harsher climatic conditions (higher latitudes, elevations, etc.), but for the green toads complex, we revealed a more intricate situation. The diploid species (Bufo shaartusiensis and Bufo turanensis) inhabit the arid lowlands (from 44 to 789 m a.s.l.), while tetraploid Bufo pewzowi were recorded in mountainous regions (340-3492 m a.s.l.) with usually lower temperatures and higher precipitation rates than in the region inhabited by diploid species. The triploid species Bufo baturae was found in the Pamirs (Tajikistan) at the highest altitudes (2503-3859 m a.s.l.) under the harshest climatic conditions.

Place, publisher, year, edition, pages
2011. Vol. 49, no 3, 233-239 p.
Keyword [en]
Polyploidy, genome size, environmental conditions, Bufo viridis subgroup
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-258954DOI: 10.1111/j.1439-0469.2010.00612.xISI: 000292463400007OAI: oai:DiVA.org:uu-258954DiVA: diva2:842819
Available from: 2015-07-22 Created: 2015-07-22 Last updated: 2015-07-22Bibliographically approved

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Crottini, Angelica
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