When autumn arrives in northern Europe, female red deer (Cervus elaphus L.) begin to
congregate. The mating season has begun. They are soon joined by males, who have spent …

Publisher Summary Major progress has occurred in recent years toward the development of
reliable and economic procedures for the induction of ovulation and spermiation in …

The variation in mating success of male wood frogs, Rana sylvatica, was studied in natural
populations and laboratory mate-choice experiments using males of varying ages, body …

Measurements were made on 274 spawn clumps and 271 adult frogs in three consecutive
years at breeding sites in the west of Ireland. Mean clutch size was 1008±20 ova, mean egg …

The survival of hundreds of threatened amphibian species is increasingly dependent on
conservation breeding programs (CBPs). However, there is an ongoing loss of genetic …

The allometric relationship between body mass and testis mass was calculated using data
from 16 genera (37 species) of African and Japanese frogs. Having controlled for body …

This study compares the heritable basis of variation in larval developmental patterns of
mountain and lowland populations of the wood frog, Rana sylvatica. Additive genetic …

Assortative mating is a common pattern in sexually reproducing species, but the
mechanisms leading to assortment remain poorly understood. By using the European …

The mating behavior of the European common frog, Rana temporaria, was studied
experimentally. Female body length was correlated with body mass as well as with …

Anurans exhibit a greater reproductive diversity than any other vertebrate order. However,
studies investigating the effects of the external fertilisation environment on fertilisation …