Deforestation dynamics and drivers in different forest types in Latin America: Three decades of studies (1980–2010)

Armenteras, D., Espelta, J.M., Rodríguez, N., Retana, J. (2017) Deforestation dynamics and drivers in different forest types in Latin America: Three decades of studies (1980–2010). Global Environmental Change. 46: 139-147.
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Doi: 10.1016/j.gloenvcha.2017.09.002

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The Moran effect and environmental vetoes: Phenological synchrony and drought drive seed production in a Mediterranean oak

Bogdziewicz, M., Fernández-Martínez, M., Bonal, R., Belmonte, J., Espelta, J.M. (2017) The Moran effect and environmental vetoes: Phenological synchrony and drought drive seed production in a Mediterranean oak. Proceedings of the Royal Society B: Biological Sciences. 284: 0-0.
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Doi: 10.1098/rspb.2017.1784

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Natural regeneration in iberian pines: A review of dynamic processes and proposals for management

Calama, R., Manso, R., Lucas-Borja, M.E., Espelta, J.M., Piqué, M., Bravo, F., del Peso, C., Pardos, M. (2017) Natural regeneration in iberian pines: A review of dynamic processes and proposals for management. Forest Systems. 26: 0-0.
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Doi: 10.5424/fs/2017262-11255

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Beyond predator satiation: Masting but also the effects of rainfall stochasticity on weevils drive acorn predation

Espelta, J.M., Arias-Leclaire, H., Fernandez-Martinez, M., Doblas-Miranda, E., Muñoz, A., Bonal, R. (2017) Beyond predator satiation: Masting but also the effects of rainfall stochasticity on weevils drive acorn predation. Ecosphere. 8: 0-0.
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Doi: 10.1002/ecs2.1836

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Nature beyond linearity: Meteorological variability and Jensen's Inequality can explain mast seeding behavior

Fernández-Martínez, M., Bogdziewicz, M., Espelta, J.M., Peñuelas, J. (2017) Nature beyond linearity: Meteorological variability and Jensen's Inequality can explain mast seeding behavior. Frontiers in Ecology and Evolution. 5: 0-0.
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Doi: 10.3389/fevo.2017.00134

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Contrasting effects of fire severity on the regeneration of pinus halepensis mill. And resprouter species in recently thinned thickets

García-Jiménez, R., Palmero-Iniesta, M., Espelta, J.M. (2017) Contrasting effects of fire severity on the regeneration of pinus halepensis mill. And resprouter species in recently thinned thickets. Forests. 8: 0-0.
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Doi: 10.3390/f8030055

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Fire behavior in Pinus halepensis thickets: Effects of thinning and woody debris decomposition in two rainfall scenarios

Palmero-Iniesta M., Domènech R., Molina-Terrén D., Espelta J.M. (2017) Fire behavior in Pinus halepensis thickets: Effects of thinning and woody debris decomposition in two rainfall scenarios. Forest Ecology and Management. 404: 230-240.
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Doi: 10.1016/j.foreco.2017.08.043

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Thinning is recommended in overstocked thickets to improve forest structure and reduce high-intensity stand replacing fires. Many studies have outlined the benefits of thinning for forest growth and reproduction but effectiveness in fire intensity needs more attention. Moreover, the effect that slash generated by thinning may have on fire behavior has been seldom explored. Here we simulated fire behavior on unthinned and thinned Aleppo pine (Pinus halepensis) thickets in Catalonia (Northeast Spain) where woody residues were left in situ. Furthermore, we simulated fire behavior one year later considering the reduction in the dead fuel load, using decomposition rates empirically determined under high and low rainfall. We could also assess the accuracy of our simulations by measuring fire severity on trees in the same study area after a real wildfire. Simulations predicted that thinning prevents the occurrence of active crown fires and reduces mean flame length (from 6.2 ± 0.8 to 1.5 ± 0.2 m), the rate of fire spread (from 5.4 ± 0.9 to 0.9 ± 0.1 m min−1) and the fireline intensity (from 3631 ± 686 to 446 ± 70 kW m−1) compared to unthinned thickets. In the thinned stands these parameters further decrease one year later owing to the decomposition of woody residues. Decomposition of woody residues was observed to be faster under a high rainfall scenario leading to a reduction in simulated flame length and fire intensity twice as fast as under low rainfall. In accordance with the lack of active crown fires and the lower flame length predicted for thinned thickets, fire severity observed after a real wildfire in the study area was lower in thinned than in unthinned stands (respectively, 2.02 ± 0.13 vs. 2.93 ± 0.15 in a scale of 0–4). The agreement between simulations that predicted a reduction in fire intensity in thinned thickets and the lower fire damage (fire severity) observed confirms the benefits of thinning young P. halepensis thickets to reduce fire effects. Moreover, our results indicate that leaving woody residues in situ after the thinning of these young thickets does not increase fire intensity. Yet, the influence of precipitation on the decomposition of woody residues highlights the uncertainties that an increase in drought in Mediterranean-type climates may have in the behavior of future fire events. © 2017 Elsevier B.V.

Llegeix més

Tropical insect diversity: Evidence of greater host specialization in seed-feeding weevils

Peguero, G., Bonal, R., Sol, D., Muñoz, A., Sork, V.L., Espelta, J.M. (2017) Tropical insect diversity: Evidence of greater host specialization in seed-feeding weevils. Ecology. : 0-0.
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Doi: 10.1002/ecy.1910

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Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management

Soler, R., Espelta, J.M., Lencinas, M.V., Peri, P.L., Martínez Pastur, G. (2017) Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management. Forest Ecology and Management. 400: 173-180.
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Doi: 10.1016/j.foreco.2017.06.014

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“New Forests” from the Twentieth Century are a Relevant Contribution for C Storage in the Iberian Peninsula

Vilà-Cabrera, A., Espelta, J.M., Vayreda, J., Pino, J. (2017) “New Forests” from the Twentieth Century are a Relevant Contribution for C Storage in the Iberian Peninsula. Ecosystems. 20: 130-143.
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Doi: 10.1007/s10021-016-0019-6

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