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Fire Effects on Forest Vegetation, 1 the Case of Mediterranean Pine Forests in Greece
| Content Provider | Semantic Scholar |
|---|---|
| Author | Thanos, Costas A. |
| Copyright Year | 1999 |
| Abstract | Postfire regeneration in Mediterranean pine forests is secured through resprouting and reseeding. Obligate reseeders include Mediterranean pines, rockroses (several Cistus spp. and other members of the Cistaceae) as well as numerous herbaceous plants (mostly legumes). Seeds are safeguarded by the fire heat in either canopy stores (pines) or long-lived soil banks (rockroses and legumes). Induction of seed germination by fire occurs through: i. pine cone opening (and subsequent dispersal) and ii. seed coat "softening" in the hardseeded plants. Hereafter, seeds are more or less ready to germinate and, consequently, seedling recruitment takes place during the early part of the first postfire wet season. Facultative reseeders (usually species with softcoated seeds) are present as well, in addition to "outsiders" (e.g. several composites) that colonise the burned areas through their anemochorous seeds. Seedling recruitment is also observed during the second postfire year, presumably as the result of an abundant first-year reproduction, particularly in geophytes as well as legumes. Pine seed germination and seedling emergence occur massively in a, usually, single "wave", immediately after the onset of the first postfire rainy period (i.e. during November-January). Moreover, the first postfire summer is by far the most crucial period for the survival of these seedlings (and those of other perennial species). |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://users.uoa.gr/~cthanos/Papers/ASC1999.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
