2006
DOI: 10.1086/503923
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Female Receptiveity, Embryonic Diapause, and Superfetation in the European Badger (Meles Meles: Implications for the Reproductive Tactics of Males and Females

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Cited by 86 publications
(124 citation statements)
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“…We also recorded the 284 identity of badgers that were present during mounting events and whether they 285 interacted with the mounting badgers. 286Although badgers may be induced ovulators and exhibit superfetation 287 (conception during pregnancy; reviewed in Yamaguchi et al 2006), they do have 288 ovarian cycles that last 28 days, in which an oestrous period lasts 3-12 days (Service 289 et al 2002). We therefore defined the day on which a female was first observed 290 mounting as day 1, and noted further mountings, up to and including day 28, to see 291 whether mountings within this period spanned more than 3 or 12 days.…”
mentioning
confidence: 99%
“…We also recorded the 284 identity of badgers that were present during mounting events and whether they 285 interacted with the mounting badgers. 286Although badgers may be induced ovulators and exhibit superfetation 287 (conception during pregnancy; reviewed in Yamaguchi et al 2006), they do have 288 ovarian cycles that last 28 days, in which an oestrous period lasts 3-12 days (Service 289 et al 2002). We therefore defined the day on which a female was first observed 290 mounting as day 1, and noted further mountings, up to and including day 28, to see 291 whether mountings within this period spanned more than 3 or 12 days.…”
mentioning
confidence: 99%
“…Por lo anterior, otro posible escenario para entender esta rareza se basa en el retraso del desarrollo ofrecido como explicación alternativa al fenómeno de la sf, una manifestación clínica que se estima bien pudiera aplicarse en este caso, dado que la implantación retrasada y el desarrollo interrumpido posterior a la fertilización e implantación pudo haber ocurrido en forma semejante a lo observado en otras especies [11,22]. Esta singular habilidad ha sido reconocida como diapausa embrionaria observada en el ciervo y algunos mamíferos silvestres [16,19].…”
Section: Discussionunclassified
“…Este fenómeno instó a teorizar que en dicho caso ambos embriones podrían haber sido fecundados al mismo tiempo, pero uno sufrió una implantación retrasada, o bien un desarrollo interrumpido, como evento considerado un fenómeno productivo paralelo al llamado conflicto sexual observado en las fases pre-y poscopulatorias de especies, cuyo apareamiento es poliándrico [21]. Para dichos géneros ello pareciera ser normal y ha sido específicamente reportado en el visón americano (mustela vison), especie cuyo apareamiento múltiple ocurre bajo una etapa prolongada de estro en un evento reproductivo análogo al observado en el tejón europeo (meles mele), que acontece con un concurso virtual de fuerza entre los machos [20,22].…”
Section: Possible Superfetation In a Female Nzb Rabbit (Oryctolagus unclassified
“…An alternative approach to the temporal uncoupling of mating and fetal development, known as delayed implantation (Fenelon et al, 2014;Lopes et al, 2004) has been adopted by at least 130 eutherian mammals. In species such as the seal (Pomeroy, 2011), badger (Yamaguchi et al, 2006), Giant panda (Zhang et al, 2009), armadillo and stoat (reviewed by Mead, 1993), the embryos do not develop for some weeks or even months, before the diapause ends and the pregnancy resumes. Sixteen species of mustelids exhibit long gestations ranging from 172 to 365 days, with embryonic development being arrested for most of this period (Mead, 1993).…”
Section: Reproductive Seasonalitymentioning
confidence: 99%