Original Research

Juvenile survival and population structure of blue wildebeest and warthogs in the Central Region of the Kruger National Park during the mid-summer drought of 1988/89

D.R. Mason
Koedoe | Vol 33, No 1 | a450 | DOI: https://doi.org/10.4102/koedoe.v33i1.450 | © 1990 D.R. Mason | This work is licensed under CC Attribution 4.0
Submitted: 20 October 1990 | Published: 20 October 1990

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D.R. Mason, Kruger National Park, South Africa

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Abstract

The survey was undertaken to investigate juvenile survival and population structure of blue wildebeest and warthogs during a mid-summer drought, and to gain sup- plementary data for a longer-term population monitoring programme. The per- centage of adult wildebeest cows with juveniles was lower than normal for the time, but was not commensurate with a sharp decline in the population. Warthogs did not tolerate the drought as well as wildebeest and experienced a larger reduction in juvenile recruitment, albeit much less than the 80-90 losses of piglets recorded in the more severe drought of late 1982.

Keywords

juvenile survival, population structure, blue wildebeest, warthogs, mid- summer drought.

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