Direct regeneration is not the only response of Mediterranean forests to large fires.

Rodrigo A, Retana J, Picó X (2004) Direct regeneration is not the only response of Mediterranean forests to large fires. Ecology 85:716-729.

Topography and forest composition affecting the variability in fire severity and post-fire regeneration occurring after a large fire in the Mediterranean basin

Broncano M.J., Retana J. (2004) Topography and forest composition affecting the variability in fire severity and post-fire regeneration occurring after a large fire in the Mediterranean basin. International Journal of Wildland Fire. 13: 209-216.
Enllaç
Doi: 10.1071/WF03036

Resum:

This study relates the spatial variability in tree regeneration generated by fire with topography and pre-fire vegetation composition, and analyses how the pattern of fire severities determines post-fire regeneration of the dominant tree species (Pinus halepensis and Quercus ilex) in a large fire that occurred in north-eastern Spain in summer 1994. At the fire level, the proportion of the different fire severities in the burned area was characteristic of large fires that burn with high severity. At the level of plot, the variability of fire severity in the study site depended on two topographic characteristics: elevation and aspect. Plots burned with high fire severity were distributed at higher altitude than less severely burned plots, which were mainly distributed in south- and east-facing slopes. Fire severity also increased with Q. ilex density in the stand. The mosaic of fire severities determined both plant mortality and seedling regeneration. Mortality of stems caused by fire was very high in both species, but many Q. ilex individuals resprouted after fire. Seedling regeneration of P. halepensis showed large differences among plots in the burned area, reflecting large spatial variability due to the elevation gradient, the variation in density of adult pine trees, and the spatial variability created by fire.

Llegeix més

Effect of site quality and shading on sprouting patterns of holm oak coppices.

Gracia M, Retana J (2004) Effect of site quality and shading on sprouting patterns of holm oak coppices. Forest Ecology and Management 188:39-49.

Fire trends in tropical Mexico: the case study of Chiapas.

Román-Cuesta RM, Retana J, Gracia M (2004) Fire trends in tropical Mexico: the case study of Chiapas. Journal of Forestry 102:26-32.

Dual role of harvesting ants as seed predators and dispersers of a non-myrmechorous Mediterranean perennial herb.

Retana J, Picó X, Rodrigo A (2004) Dual role of harvesting ants as seed predators and dispersers of a non-myrmechorous Mediterranean perennial herb. Oikos 105:377-385.

Limitation of the recruitment of Pinus nigra in a gradient of post-fire environmental conditions.

Ordóñez JL, Franco S, Retana J (2004) Limitation of the recruitment of Pinus nigra in a gradient of post-fire environmental conditions. Ecoscience 11:296-304.

Early reduction of post-fire recruitment of Pinus nigra by post-dispersal seed predation in different time-since-fire habitats.

Ordóñez JL, Retana J (2004) Early reduction of post-fire recruitment of Pinus nigra by post-dispersal seed predation in different time-since-fire habitats. Ecography 27:449-458.

Foraging behaviour and pollinating effectiveness of Osmia cornuta (Hymenoptera: Megachilidae) and Apis mellifera (Hymenoptera: Apidae) on "Comice" pear.

Monzón VH, Bosch J, Retana J (2004) Foraging behaviour and pollinating effectiveness of Osmia cornuta (Hymenoptera: Megachilidae) and Apis mellifera (Hymenoptera: Apidae) on "Comice" pear. Apidologie 35:575-585.

Interacció entre estructura del paisatge, usos del sòl i règim d’incendis.

Espelta JM, Lloret F, Díaz-Delgado R, Pons X, Calvo E, Retana J (2004) Interacció entre estructura del paisatge, usos del sòl i règim d’incendis. In Plana E (ed) Incendis forestals, dimensió socioambiental, gestió del risc i ecologia del foc. Xarxa ALINFO XCT2001-00061, Solsona, pp. 34-37.

Gestió de boscos menuts d’alzina i roure después d’incendis.

Espelta JM, Retana J, Habrouk A (2004) Gestió de boscos menuts d’alzina i roure después d’incendis. In: Plana E (ed) Incendis forestals, dimensió socioambiental, gestió del risc i ecologia del foc. Xarxa ALINFO XCT2001-00061, Solsona, pp. 124-127.

Pàgines