ost of the vegetation types on the
reserve are adapted to periodic veld fires. Exceptions are the
indigenous forest patches in the kloof areas. The probability of fire spread
would be expected to be maximal during the hottest and driest 4 month
period of the year from December to end of March. The summer period
from October to March is also the period with the strongest winds when
westerlies, easterlies and south-westerlies predominate.
Khoi pasturalists used patch burning from about 2000 years ago and
before them the San, which live in the vicinity had also used fire, although
the extent to which they changed the pattern and frequency of lighting-
caused fires is unknown. Intensive patch burning was also practiced by
most farmers in the area to encourage the increase of grass before the
reserve was proclaimed. This practice still occurs today from our northern
neighbours to encourage proliferation of the “ Sewerjaartjies”, for
commercial gain. This can be of detrimental consequences if uncontrolled
fires escape the neighboring farms and sweep into Vogelgat.
The maintenance or
restoration of a
“natural” fire regime is
the objective on the
reserve. Although
uncertainty and
disagreement still exist
regarding the details, it
is now widely
recognised that a
“natural” fire regime must
incorporate variability in
seasonality, frequency and
intensity in order to maintain biodiversity and resilience, including genetic variation in the long term. The “natural” fire regime will be
determined primarily by the inherent rate of recovery of the vegetation after previous fire as well as climatic conditions, which together
determine the flammability of the vegetation and thus the potential for the spread of fire. Thus a range of fire intervals (including occasional
burning four to five years after a previous fire), as well as occasional fires outside the main ‘fire season”, must be considered as a prerequisite
to maintain the natural biodiversity and resilience of the fynbos ecosystem.
Vogelgat Private Nature
Reserve situated in the Klein
River Mountains near
Hermanus has for many years
served as a study site for
various students, botanists
and environmentalists whose
work has significantly
contributed to the
conservation of the flora and
fauna in the area.
The reserve is steeped in
botanical history in particular,
botanist Rudolph Schlecter,
made 94 collections as early
as 1896.
Dr Ion Williams purchased the
farm Vogel Gat on the 13th
October 1969 and Vogelgat
was proclaimed a private
nature reserve on the 18th
August 1971. Dr Williams
revised the genus
Leucodendron and several
genera in the Rutacea.
M
© Vogelgat Private Nature Reserve Design: Webwits
© Vogelgat Private Nature Reserve Design: Webwits
© Vogelgat Private Nature Reserve
Incidences of Fire
Design: Webwits Graciously sponsored by: Dr Gerrit Wyma & Nosy Rosy