Agriculture Reference
In-Depth Information
(a)
(b)
Fig. 9.6
Brightly colored bird-dispersed fruits typical of many obligate resprouting shrubs/trees
with fire-independent seedling recruitment: (a)
Arbutus unido
from maquis in southern
France, north-central Mediterranean Basin, (b)
Prunus ilicifolia
in Californian chaparral,
(c)
Schinus polygamus
in Chile matorral, and (d)
Rhus
sp. in South African fynbos; this
functional type is largely absent from Australian MTV shrublands. (Photos by Jon Keeley.)
They also have a lack of appreciation for how heterogeneous landscapes
could select for the assembly of diverse life history strategies in response to fire,
and that this has likely been occurring for a very long time. The relative advan-
tages of fire-independent and fire-dependent recruitment have undoubtedly
changed over time but not necessarily along a single trajectory. Although broad
portions of the landscape with more predictable fire have likely increased during
certain Quaternary phases, the relatively rapid glacial-interglacial episodes
would have altered these habitats, perhaps even favoring the vertebrate-dispersed
