Seedling emergence and growth of Quercus spp. following severe drought effects on a Pinus sylvestris canopy

Galiano L., Martinez-Vilalta J., Eugenio M., Granzow-de la Cerda I., Lloret F. (2013) Seedling emergence and growth of Quercus spp. following severe drought effects on a Pinus sylvestris canopy. Journal of Vegetation Science. 24: 580-588.
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Doi: 10.1111/j.1654-1103.2012.01485.x

Resum:

Questions: We addressed the following questions: (1) did defoliation and die-off of the dominant Pinus sylvestris, induced by an extreme drought episode, favour emergence of other tree species; (2) did the defoliated canopies of P. sylvestris resulting from drought promote radial growth among other pre-existing tree species seedlings under them? Location: P. sylvestris forest in Central Pyrenees (NE Spain) affected by a severe drought in 2004-2005. Methods: Despite increased focus on climate-related forest die-off, studies of the effects on regeneration processes following extreme drought remain scarce. We analysed whether an episode of drought-induced mortality on the dominant P. sylvestris L. may act as a driver of vegetation shift. Seedlings of Quercus humilis Mill. and Q. ilex L. from 27 plots were sampled under P. sylvestris canopies with

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