Reproductive behaviour of the South Indian gerbil Tatera indica cuvieri with a note on the role of postejaculatory copulations

• Autorzy: Thomas B. B. , Oommen M.M.
• Języki publikacji: EN

Abstrakty

EN

The reproductive behaviour of Tatera indica cuvieri (Waterhouse, 1838) has been evaluated in detail. It involves 1 to 4 series, with each series composed of mounts, intromissions, and ending up with ejaculation. Quantitative measures of the copulatory behavioural variables indicate significant difference across the 4 series. While intro­mission duration and thrust frequency progressively increased across the 4 series, significant decrease was observed regarding postejaculatory interval. After the final ejaculation, the male resorted to a state of continued copulatory activity, referred to as postejaculatory copulation (PEC). Higher levels of copulatory activity are observed during this phase as evidenced by increases in total number of intromissions, duration of intromissions and thrust frequency. Further, the postejaculatory copulation is of considerable significance in inducing pregnancy in females, the chance of pregnancy being higher if the female is subjected to PEC.

Słowa kluczowe

EN

reproduction; pregnancy; behaviour; copulation; South Indian gerbil; Tatera indica cuvieri; postejaculatory copulation

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 1998
• Tom: 43
• Numer: 3
• Opis fizyczny: p.263-270

Twórcy

autor

Thomas B. B.

• University of Kerala, Kariavattom 695 581, Trivandrum, Kerala State, India

autor

Oommen M.M.

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