Interspecific hybridization occurs in nature but can also be caused by human actions. It often leads to infertile or fertile hybrids that exclude one parental genome during gametogenesis, escaping genetic recombination and introgression. The threat that genome-exclusion hybridization might represent on parental species is poorly understood, especially when invasive species are involved. Here, w...

Water frogs of the genus Pelophylax (previous Rana) species have been much studied in Europe for their outstanding reproductive mechanism in which sympatric hybridization between genetically distinct parental species produces diverse genetic forms of viable hybrid animals. The most common hybrid is P. esculentus that carries the genomes of both parental species, P. ridibundus and P. lessonae, b...

Riassunto. le specie alloctone invasive sono una delle principali minacce alla biodiversità. in questa rassegna vengono analizzati i principali taxa di anfibi e rettili attualmente invasivi in italia: Xenopus laevis; Lithobates catesbeianus; Pelophylax kurtmuelleri / P. ridibundus; Trachemys scripta. Per ogni taxon, si evidenzia la distribuzione nativa ed invasiva, le cause dell’introduzione, e...

Informed conservation management requires exact knowledge on the species diversity of taxon group in focus within a geographic area, specifically occurrence endemics. In Turkey, there are three water frog taxa genus Pelophylax; one is widespread P. bedriagae, other two geographically restricted to either Thrace (P. ridibundus) or Anatolian Lake district caralitanus). The status Beyşehir caralit...

European water frog populations are mainly composed by two species: Pelophylax lessonae (pool frog) and Pelophylax esculentus (edible frog). These populations are called L-E complexes. Edible frogs are a hybrid form between P. lessonae and Pelophylax ridibundus (eastern lake frog) and they reproduce in a particular way, called hybridogenesis. These frog populations have been studied in the cont...

Цель работы – изучение популяционных систем среднеевропейских зеленых лягушек (Pelophylax esculentus complex) и их динамики в пределах Русской равнины. Многолетние (от 14 до 39 лет) полевые исследования позволили выявить ряде мест изменения типов систем. Отмечен переход от LE-типа к REL-типу, а также E-типа RE-типу. Основная причина высокая способность расселению озерной лягушки, Pelophylax rid...

mtDNA of the hybridogenetic hybrid frog Rana esculenta from Switzerland, Austria, and Poland was compared to mtDNA of the parental species R. ridibunda and R. lessonae using electrophoretic analysis of restriction enzyme fragments. Two mtDNA phenotypes, with 3.4% sequence divergence, are present in R. lessonae: type C is found in Poland, and type D is found in Switzerland. Rana ridibunda from P...

Anurans have been introduced in many parts of the world and often become invasive over large geographic areas. Although predation is involved declines invaded amphibian populations, there a lack quantitative assessments evaluating potential risk posed to native species. This particularly true for Pelophylax water frogs, which western Europe, but no studies date examined their on other amphibian...