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Are oaks locally adapted to serpentine soils?
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Resumo(s)
Serpentine soils are extreme habitats known to be involved in processes
of local adaptation and speciation of plants. Here I use a greenhouse reciprocaltransplant
experiment to compile baseline data for describing patterns of serpentine
local adaptation in Quercus ilex subsp. ballota (Holm Oak). I also tested the role of
mycorrhizal fungi on the establishment and growth of seedlings on serpentine and
non-serpentine soil. Non-serpentine seedlings grew more than serpentine seedlings
in all treatments. Plants grew more on non-serpentine soil and mycorrhizal fungi
positively infl uenced seedling growth. I did not fi nd evidence of better seedling
performance in their home environment, suggesting the absence of local adaptation.
However, I document signifi cant growth differences between serpentine and nonserpentine
seedlings, which suggest physiological differences between seedlings
from these two soil origins.
Descrição
Palavras-chave
Oak Serpentine soil
Contexto Educativo
Citação
Branco, Sara (2009). Are oaks locally adapted to serpentine soils? In 6th International Conference on Serpentine Ecology. Coll Atlantic, Bar Harbor, ou Northeastern Naturalist. ISSN 1092-6194. 16:5, p. 329-340