Rain affects gender ratio of African buffalo

Close-up of a Buffalo.

The amount of rain affects whether more male African buffalo, than female buffalo, are born in Kruger National Park.

The amount of rain affects whether more male African buffalo, than female buffalo, are born in Kruger National Park, scientists said. Data collected from more than 200 buffalo calves and 3,000 fetuses showed an increased proportion of male African buffalo were born during the rainy season, said researchers from Wageningen University, The Netherlands.The data, collected between 1978 and 1998 suggests ejaculate volume, sperm motility and proportion of normal-shaped sperm decrease significantly during the dry season, when more females are born. "Gender ratios were male-biased during wet periods and female-biased during dry periods, both seasonally and annually," researcher Pim van Hooft wrote in a recent edition of BMC Evolutionary Biology.
Kruger National Park - South African Safari
  • Customer Support
  • Tel: +27 21 424 1037
  • Fax: +27 21 424 1036
  • Contact by Mail
  • Business Hours
  • Mon - Fri. 08:00 - 17:00
  • Saturday. 08:00 - 12:00

Travel planning done Expertly!

Your Informed African Travel Partner Siyabona Africa
Copyright 1999 2016 Siyabona Africa (Pty) Ltd -

Siyabona Africa (Pty) Ltd - The Definitive go on Safari in Kruger Park Guide
Kruger Park Reservations and Bookings