Open AccessJuvenile 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
Author(s) -
D.R. Mason
Publication year - 1990
Publication title -
koedoe
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.419
H-Index - 29
eISSN - 2071-0771
pISSN - 0075-6458
DOI - 10.4102/koedoe.v33i1.450
Subject(s) - wildebeest , juvenile , national park , population , biology , population decline , ecology , zoology , demography , habitat , sociology
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