Spatial and temporal patterns in structure and diversity of Mediterranean forest of Quercus pyrenaica in relation to fire

álvarez, R; Muñoz, Antonio‐Román; Pesqueira, Xosé Manoel; García-Duro, Juan; Reyes, Otilia; Casal, M.

doi:10.1016/j.foreco.2009.01.016

Cited by 51 publications

(12 citation statements)

References 25 publications

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“…In the case of some deciduous oak communities, the recovery process after fire is very low, and more than 50-60 years are needed to reach the pre-fire conditions (Calvo et al 2002, a, b;Jacquet and Prodon, 2009). During the initial stages (0-20 years) homogeneous shrubland communities dominate spatially and influence negatively the growth of Quercus pyrenaica (Alvarez et al, 2009;Calvo et al, 2002 a, b). Hence, short fire intervals could favour the expansion of shrublands communities or the persistence of resprouting oak forests with a shrubland-type physiognomy (Fig.…”

Section: # Figure 2 Approximately Herementioning

confidence: 99%

Landscape – wildfire interactions in southern Europe: Implications for landscape management

Moreira¹,

Viedma²,

Arianoutsou³

et al. 2011

Journal of Environmental Management

743

567

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Every year approx. half a million hectares of land are burned by wildfires in southern Europe, causing large ecological and socio-economic impacts. Climate and land use changes in the last decades have increased fire risk and danger. In this paper we review the available scientific knowledge on the relationships between landscape and wildfires in the Mediterranean region, with a focus on its application for defining landscape management guidelines and policies that could be adopted in order to promote landscapes with lower fire hazard. The main findings are that (1) socio-economic drivers have favoured land cover changes contributing to increasing fire hazard in the last decades, (2) large wildfires are becoming more frequent, (3) increased fire frequency is promoting homogeneous landscapes covered by fire-prone shrublands; (4) landscape planning to reduce fuel loads may be successful only if fire weather conditions are not extreme. The challenges to address these problems and the policy and landscape management responses that should be adopted are discussed, along with the major knowledge gaps.

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Section: # Figure 2 Approximately Herementioning

confidence: 99%

Landscape – wildfire interactions in southern Europe: Implications for landscape management

Moreira¹,

Viedma²,

Arianoutsou³

et al. 2011

Journal of Environmental Management

743

567

View full text Add to dashboard Cite

show abstract

“…Bradstock & Kenny 2003), but are constrained by the availability of data on many traits and the small proportion of species typically assessed (Clarke 2008). Investigating temporal trends in vegetation composition and structure is a complimentary approach (Burrows 2008; Álvarez et al . 2009), and may partially incorporate fire‐related requirements of some fauna, which are rarely considered in vital attribute schemes (Clarke 2008).…”

Section: Introductionmentioning

confidence: 99%

Contrasting changes in vegetation structure and diversity with time since fire in two Australian Mediterranean‐climate plant communities

Gosper

Yates²,

Prober

et al. 2011

Austral Ecology

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Mallee-heath and mallee communities occur in a mosaic across large areas of south-western Australia, in topographically subdued and fire-prone landscapes. Consequently, it could be expected that these communities would have historically experienced similar fire regimes, and would respond similarly to variation in aspects of the fire regime.We studied the response of mallee-heath and mallee to time since the last fire, measuring species density, species-area relationships, diversity indices and vegetation structure. Floristic responses to time since fire accorded with the initial floristic composition model of plant succession, with declining species density and Shannon diversity with age in mallee-heath. Mallee-heath exhibited structural senescence when > approximately 45-55 years since fire, with increasing standing dead vegetation, bare ground and stagnating or declining size in sprouting Eucalyptus spp. Mallee showed no such evidence of senescence, and indeed continued to increase in stature beyond the mean fire interval but without the compositional change required to provide support for the relay floristic model of plant succession. These results indicate that mallee-heath is a fire maintained community and as such is reliant upon periodic burning to maintain diversity and vigour. Mallee, in contrast, is modified but not maintained by fire (at least over the period of time since fire examined) and hence is less susceptible to fire interval effects. Indeed, structural attributes likely to be significant for fauna habitat and carbon sequestration continue to develop in mallee unburnt for 55 years or more. Different responses to time since fire will create challenges for management, particularly in fragmented landscapes where fire potentially interacts with other threatening processes.

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“…The fire simplified the vertical structure of both communities turning them into communities dominated by the low stratum and with near elimination of the high stratum. Álvarez et al [77] found this same effect in forests of Quercus pyrenaica; Willd and Muñoz et al [21] in the heathlands of Erica ciliaris Loefl. ex L. and Erica tetralix L.…”

Section: Fire Effects On Natural Regenerationmentioning

confidence: 72%

Fire Severity Drives the Natural Regeneration of Cytisus scoparius L. (Link) and Salix atrocinerea Brot. Communities and the Germinative Behaviour of These Species

Cruz

García-Duro

Riveiro

et al. 2020

Forests

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Research Highlights: Data indicated that fire severity modulates natural regeneration of Cytisus scoparius and Salix atrocinerea communities and drives much stronger effects on the germination of the dominant species. Background and Objectives: Previous studies demonstrated that fire severity induces different behaviours in plant species. Mother plant age is an important feature that must also be considered in plans of forest restoration. The objectives were to determine, in field studies, the effect of fire severity on the natural regeneration of C. scoparius and S. atrocinerea communities, to know the role of mother plant age on the germination of seeds of C. scoparius and S. atrocinerea, and to quantify their germination response at different levels of fire severity, in laboratory settings. Material and Methods: We have analysed the role of fire severity on the natural regeneration of C. scoparius and S. atrocinerea communities considering cover and height. Forty 30 × 30 m plots were randomly located in C. scoparius and S. atrocinerea communities. Fire severity on the germination of dominant species was tested through different levels of smoke, charcoal, ash, and heat. Results: High severity reduced the vertical cover and growth in height of the two communities and favoured the increase of cover of woody species in the C. scoparius community and herbaceous species in the S. atrocinerea community. Mother plant age determined germination percentages of C. scoparius seeds. Germination of C. scoparius was increased by moderate heat, and heat and smoke; and fire severity greatly reduced germination of S. atrocinerea. Conclusions: The regeneration responses after fire were largely controlled by interactions between the fire severity and the individual species regeneration strategies. For restoration purposes, C. scoparius seeds should be treated with 80 °C and smoke for 10 min, in order to increase germination; however, Salix seeds should be used without treatment and immediately after dispersion.

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Spatial and temporal patterns in structure and diversity of Mediterranean forest of Quercus pyrenaica in relation to fire

Cited by 51 publications

References 25 publications

Landscape – wildfire interactions in southern Europe: Implications for landscape management

Landscape – wildfire interactions in southern Europe: Implications for landscape management

Contrasting changes in vegetation structure and diversity with time since fire in two Australian Mediterranean‐climate plant communities

Fire Severity Drives the Natural Regeneration of Cytisus scoparius L. (Link) and Salix atrocinerea Brot. Communities and the Germinative Behaviour of These Species

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