The most commonly heard vQcalizations of frogs are advertisement calls, which attract
gravid females and mediate aggressive interactions between males. Frog vocalizations are …

Vertebrates represent one of the best-studied groups in terms of the role that mating
preferences have played in the evolution of exaggerated secondary sexual characters and …

In species with internal fertilization, females can 'cryptically'choose (eg through sperm
selection) which individuals sire their offspring, even when their overt preferences for …

Among anuran amphibians (frogs and toads), there are two types of polyandry:
simultaneous polyandry, where sperm from multiple males compete to fertilize eggs, and …

Background Triploid individuals often play a key role in speciation by hybridization. An
understanding of the gamete types (ploidy and genomic content) and stability of hybrid …

The E uropean water frog P elophylax esculentus is a natural hybrid between P. lessonae
(genotype LL) and P. ridibundus (RR). It reproduces through hybridogenesis, eliminating …

Abstract Central European water frog Pelophylax esculentus is a hybrid that lives
sympatrically and forms genetic systems with one of its parental species, in this case LE (P …

All‐hybrid populations of the water frog, Rana esculenta, are exceptional in consisting of
independently and to some extent sexually reproducing interspecific hybrids. In most of its …

European water frog hybrids Rana esculenta (Rana ridibunda× Rana lessonae) reproduce
hemiclonally, transmitting only their ridibunda genome to gametes. We compared fitness …

Vertebrate animals reproducing without genetic recombination typically are hybrids, which
have large ranges, are locally abundant, and live in disturbed or harsh habitats. This holds …