Lloyd Banks - On Fire
[Chorus]We on fireUp in here, it's burning hotWe on fireShorty take it off if it get to hot, up in this spotWe on fireTear the roof off this motherfucker, light the roof on fireNigga what you sayWe get loose in this motherfucker, light the roof on fire fire fire
Lloyd Banks - On Fire
The harvest in April produced 138 seedlings that were assigned to ten species by bar-coding. In descending order of abundance (n) these were: Restio triticeus (56), R. filiformis (44), R. curviramis (11), Elegia filacea (9), E. caespitosa (7), R. capensis (5), R. distichus (2), Thamnochortus lucens (2), E. juncea (1) and Staberoha banksii (1). Because of small sample sizes, species were analysed in three taxa: Restio triticeus (n = 56), R. filiformis (n = 44) and other (n = 38).
While at Jonkershoek, the most abundant seedlings (Restio triticeus and R. filiformis) belonged to species that were also recorded in the pre-burn vegetation (Fig. 1A), this was not the case at Steenbras. At this site, the most abundant seedling (R. nudiflorus) was not recorded in the vegetation at all. This is an example of one of the most important effects of fire on coexistence, triggering the return to the vegetation of a species that was locally rare or even absent before the burn. Such effects are widespread in fynbos (Privett et al., 2001; Thuiller et al., 2007) as well as in post-disturbance succession in other vegetation types (Fenner and Thompson, 2005) and, as we have found, they make it difficult to test for other processes that may be at work. Even bigger sample sizes than the ones we used are needed to penetrate the fog of history and stochasticity. A sceptic would, of course, argue that the overwhelming impact of history and stochasticity is precisely the point but, without denying this, the clear imprint of niche segregation in fynbos (Slingsby and Verboom, 2006; Araya et al., 2011) and other plant communities (Cavender-Bares et al., 2004; Gonzalez et al., 2010) does still require explanation.
The strength of below-ground competition in inhibiting seedling growth at Steenbras was remarkable (Fig. 3B). Fynbos species, as in other fire-prone plant communities, divide between those that regenerate from seed and those that resprout. The resprouters were probably the chief source of below-ground competition for seedlings in our experiment and this should be tested in future experiments of this kind. Below-ground competition can be decisive in determing a species' hydrological niche. For example, Bartelheimer et al. (2010) found that, in the absence of competition, Senecio jacobaea would grow just as well in moist soil as dry, but when exposed to below-ground competition it grew better in the kind of dry environments where it is found in nature. 041b061a72