Influence of environmental conditions on the distribution of Central Asian green toads with three ploidy levels.

Détails

ID Serval
serval:BIB_3E1BEA856AA4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Influence of environmental conditions on the distribution of Central Asian green toads with three ploidy levels.
Périodique
Journal of Zoological Systematics and Evolutionary Research
Auteur(s)
Litvinchuk S.N., Mazepa G.O., Pasynkova R.A., Saidov A., Satorov T., Chikin Y.A., Shabanov D.A., Crottini A., Borkin L.J., Rosanov J.M., Stöck M.
ISSN
0947-5745
Statut éditorial
Publié
Date de publication
2011
Peer-reviewed
Oui
Volume
9
Numéro
3
Pages
233-239
Langue
anglais
Résumé
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.
Mots-clé
Polyploidy, genome size, environmental conditions, Bufo viridis subgroup
Web of science
Création de la notice
10/12/2010 23:19
Dernière modification de la notice
03/03/2018 16:22
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