Regeneration dynamics of Quercus pyrenaica Willd. in the Central System (Spain)

Camisón, Álvaro; Miguel, Rocío; Marcos, José Luis; Revilla, Jokin; Tardáguila, Ma Ángeles; Hernández, Diego; Lakicevic, Milena; Jovellar, Luis Carlos; Silla, Fernando

doi:10.1016/j.foreco.2015.01.023

Cited by 13 publications

(9 citation statements)

References 47 publications

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“…The negative response of regeneration to higher basal area (G) or denser forests (N) concurs with [41], who studied the regeneration patterns of Q. pyrenaica and linked it to shade-intolerant species. Q. pyrenaica regeneration particularly suffered with understory clearing (UnderClear) and, to a lesser extent, with grazing (GRAZI).…”

Section: Q Pyrenaicasupporting

confidence: 71%

“…regeneration failure with more open, uniform, and/or aged woodlands. Conversely, under temperate climate, where water availability is not as limiting, tree regeneration might depend much more on competitive growth and gap-dynamics [29,40,41]. Other variables can have two-fold effects even on the same species under similar contexts, depending on their frequency patterns.…”

Section: Introductionmentioning

confidence: 99%

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Regeneration of Native Forest Species in Mainland Portugal: Identifying Main Drivers

Monteiro‐Henriques

Fernandes

2018

Forests

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Persistence of native forests is a global concern. We aimed at unveiling the main factors affecting tree recruitment in Portuguese native forests, modelling sapling data collected during the 5th Portuguese Forest Inventory, for five main Quercus taxa. Zero-inflated count data models allowed us to examine simultaneously (i) the absence of tree recruitment and (ii) the density of tree recruitment. Using Akaike weights, we obtained importance values for 15 relevant explanatory variables. Results showed that seed availability and climatic variables were determinant to understand regional absence of regeneration for all taxa. Seed availability was also an important driver of sapling density, except for Quercus suber. Other variables impacted on regeneration density: grazing hindered Q. suber regeneration; regeneration of Q. rotundifolia and Q. suber was lower in flat areas; recurrent fire hampered the regeneration of Q. robur and Q. pyrenaica; Q. broteroi and Q. pyrenaica showed depressed regeneration in regions where forest plantations abound, while Q. robur and Q. suber seemed selectively protected. We conclude that caution is warranted when analysing pooled data for Quercus spp. regeneration, as different variables affected Quercus taxa differently. Finally, we suggest dedicated management actions to enhance the establishment of new native forests.

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Section: Q Pyrenaicasupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Regeneration of Native Forest Species in Mainland Portugal: Identifying Main Drivers

Monteiro‐Henriques

Fernandes

2018

Forests

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“…By contrast, Q. pyrenaica, the main tree species in the study area, shows higher seedling regeneration than C. sativa in the QSF stands, but similar sapling density. This finding suggests lower shade tolerance than C. sativa and/or strong competition for water and nutrients between clones, as sprouting from lateral roots dominates Q. pyrenaica regeneration (Salomón et al 2013;Camisón et al 2015). However, the CDF stands show very little or no regeneration of Q. pyrenaica.…”

Section: Seedling and Sapling Dynamicsmentioning

confidence: 96%

Does the persistence of sweet chestnut depend on cultural inputs? Regeneration, recruitment, and mortality in Quercus- and Castanea-dominated forests

Silla

Camisón

Solana

et al. 2018

Annals of Forest Science

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& Key message Quercus secondary forests show a gradual transition toward mixed forests, with sweet chestnut (Castanea sativa) becoming increasingly abundant in the western Spanish Central System. Additionally, in chestnut-dominated stands, it shows a certain resistance to competitive displacement by Quercus pyrenaica. Our results partially refute the traditional view that C. sativa is unable to recruit in the absence of cultural inputs. & Context Sweet chestnut, Castanea sativa, is a component of European broadleaf forests and is one of the most managed trees. Due to a reduction in cultural inputs, chestnut-dominated stands tend to be invaded by other species, and it is unclear how chestnut is able to persist in natural mixed forests. & Aims Our work aimed to identity the main factors that limit the establishment of C. sativa and to analyze the recruitment and mortality processes of C. sativa trees. & Methods The age, growth ring patterns, regeneration density, and the spatial structure of trees and saplings in 11 plots in the Spanish Central System were analyzed. & Results Chestnut seedling density increased with C. sativa basal area, but transition toward the sapling stage appeared limited owing to light availability. In Quercus pyrenaica secondary forests, sparse canopies did not constrain chestnut regeneration, and in old chestnut stands, C. sativa showed a certain resistance to competitive displacement. By contrast, mixed young coppices showed a high mortality, most likely due to competition with other vigorous resprouters. & Conclusion Quercus secondary forests showed a gradual transition toward mixed forests with sweet chestnut becoming increasingly more abundant. In old stands, C. sativa is likely to persist under a gap-phase mode of regeneration. Our results partially refute the traditional view that C. sativa is unable to recruit in the absence of cultural inputs.

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“…resin tapping) since the 1960s in Spain, and to the expansion of pioneer pine species in formerly cultivated areas and fire-disturbed sites (Stephens et al, 2014). In addition, mixed oak-chestnut stands characterized by closed canopies seem to be also becoming more abundant due to the abandonment of coppicing and firewood logging in many of these mixed stands and because chestnut is shade-tolerant (Camisón et al, 2015). Pausas & Fernandez Muñoz (2012) hypothesize, in addition, that fire regimes in Iberian Peninsula landscapes tend to be increasingly "climate driven" in contrast to the pre-industrial past when fire regimes were "fuel limited".…”

Section: Fire Regime Dynamics Since Industrializationmentioning

confidence: 99%

Divergent Fire Regimes in Two Contrasting Mediterranean Chestnut Forest Landscapes

Seijo

Millington

Gray³

et al. 2016

Hum Ecol

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Regeneration dynamics of Quercus pyrenaica Willd. in the Central System (Spain)

Cited by 13 publications

References 47 publications

Regeneration of Native Forest Species in Mainland Portugal: Identifying Main Drivers

Regeneration of Native Forest Species in Mainland Portugal: Identifying Main Drivers

Does the persistence of sweet chestnut depend on cultural inputs? Regeneration, recruitment, and mortality in Quercus- and Castanea-dominated forests

Divergent Fire Regimes in Two Contrasting Mediterranean Chestnut Forest Landscapes

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