Publication: Lack of hard-seeded species in pre-fire and post-fire seed banks in the region of Murcia (south-eastern Spain)
Authors
Buhk, Constanze ; Hensen, Isabell
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Facultad de Biología
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Publisher
Murcia: Universidad de Murcia, Servicio de Publicaciones
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Permanent seed banks are thought to be of essential importance for
the reproductive success of many obligate seeder species during early
post-fire succession. To evaluate the role of seed banks for post-fire
regeneration in SE Spain, seed bank analyses were carried out on
recently burnt sites and in long-unburnt areas in two climatically different
regions of the province of Murcia, using the seedling emergence method
as well as the physical separation technique. We found great variability
in the number of seeds between sites and expositions. Lowest seed
numbers were found in the mountains while locally very dense seed
banks of > 3500 seeds/m2 in the upper two cm of soil were present at
the coast. Species of Poaceae, Asteraceae as well as annual species
such as Asterolinum linum-stellatum prevailed whereas hard-seeded
species known to occur frequently in post-fire Mediterranean vegetation
(e.g. Cistaceae, Fabaceae or Convolvulaceae) were sparse or absent
in the seed bank. We conclude that the hard-seeded species are not a
self-evident compound of the species composition during post-fire
succession of long-unburnt sites in south-eastern Spain.
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Citation
Buhk, C., & Hensen, I. (2005). LACK OF HARD-SEEDED SPECIES IN PRE-FIRE AND POST-FIRE SEED BANKS IN THE REGION OF MURCIA (SOUTH-EASTERN SPAIN). Anales De Biología, (27), 29–37.
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