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Tanned or Burned: The Role of Fire in Shaping Physical Seed Dormancy

Figure 3

Conceptual model describing recruitment dynamics in mediterranean ecosystems for species with physical dormancy.

The x-axis represents an increase in the heat doses reaching the soil (during summer or fires). The y-axis represents the proportion of recruitment associated with dormancy release, for species with different levels of fire-dependent recruitment. For some species, fire is not the main factor shaping seed dormancy and thus they have fire-independent dormancy release and recruitment (dashed line). However, species living in fire prone mediterranean ecosystems have mostly fire-dependent dormancy release, with recruitment strictly related to fire (obligate fire-dependent dormancy release, continuous line) or with a small proportion of recruitment independent of fire (facultative fire-dependent dormancy release, dotted line).

Figure 3

doi: https://doi.org/10.1371/journal.pone.0051523.g003