Modelling the damage status of silver fir trees (Abies alba Mill.) on the basis of geomorphological, climatic and stand factors

Božić, Mario; Antonić, Oleg; Pernar, Renata; Jelaska, Sven D.; Križan, Josip; Čavlović, Juro; Kušan, Vladimir

doi:10.1016/j.ecolmodel.2005.10.021

Cited by 6 publications

(4 citation statements)

References 29 publications

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“…In Croatia silver fir forests have been declining for many years now, especially in Gorski Kotar (Kalafadžić et al 1990;Božić et al 2004). This decline is the consequence of the synergetic influence of unfavourable abiotic and biotic factors (climate, air pollution, insect pests, pathogenic fungi and human influence).…”

Section: Discussionmentioning

confidence: 99%

The incidence of mistletoe (Viscum album ssp. abietis) on silver fir (Abies alba) in Croatia

et al. 2008

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Abstract:The research on incidence of mistletoe (Viscum album ssp. abietis) on silver fir (Abies alba) was carried out in natural fir stands in Croatia. In the area of Gorski Kotar 32.8 % of the examined dominant fir trees were infected with mistletoe. The mistletoe incidence was presented according to the damage degrees of silver fir from 0 (healthy trees) to 4 (dead trees), rated by the crown defoliation and needle discoloration. With the increase of incidence, mistletoe spreads more onto more vital, i.e. less damaged trees. In the Dinaric Alps 28.6% of the examined fir trees were infected, this percentage amounting to 27.1% for the mountainous regions between the Sava and Drava rivers. The site and stand parameters (exposure, elevation, site quality, forest community and crown closure) were analysed in order to establish whether there was a correlation between these parameters and mistletoe incidence. There was a negative correlation between the elevation and mistletoe incidence. Among the compartments with a closed stands there were considerably less compartments with higher mistletoe incidence than among compartments with a sparsely closed and understocked stands. The other analysed site and stand parameters individually had no significant influence on mistletoe incidence. The correlation of silver fir mortality in 2004 and mistletoe incidence in 2002/03 was analysed, and their strong correlation was established. Mistletoe could be considered as a bioindicator of silver fir decline, and probably a significant contributor to that decline. In the areas where mistletoe incidence is great it can be presumed that silver fir is significantly damaged.

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Section: Discussionmentioning

confidence: 99%

The incidence of mistletoe (Viscum album ssp. abietis) on silver fir (Abies alba) in Croatia

et al. 2008

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“…The amount of damage per damaged tree was 1.98. The results of other research have shown a lower amount of damage per damaged tree: 1.04 and 1.05, 1.25 and 1.35, 1.38, and 1.33-1.90 [39,67,69,70], respectively. Jourgholami [34] found that 67% of damaged trees had 1-3 damage wounds, i.e., 70% of trees had more than 1 damage wound.…”

Section: Discussionmentioning

confidence: 91%

“…Spruce, as the species with the thinnest bark [67,68], was the most exposed to damage. Fir followed with a somewhat thicker bark than spruce [69,70], while for Scots pine, the species with the thickest bark [71], the lowest share of damage was recorded.…”

Section: Proportion (%)mentioning

confidence: 99%

Damages of Skidder and Oxen Logging to Residual Trees in Uneven-Aged Mixed Forest

Knežević

Musić

Halilović

et al. 2023

Forests

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The negative influence of timber harvesting on the forest environment is reflected through damage to the residual trees, regeneration, and forest soil. Considering that skidding, a popular extraction method, can cause substantial and severe damage to the remaining stand, the aim of this research was to determine damage to residual trees during skidding by an LKT 81T cable skidder, including oxen bunching. The research was conducted in eastern Bosnia and Herzegovina, in an uneven-aged mixed fir (Abies alba Mill.) and spruce (Picea abies L.) forest with pine (Pinus sylvestris L.) on limestone soils. Tree felling was conducted using a Husqvarna 372 XP chainsaw. Extraction operations caused damage to 6.31% of the residual trees in the stand. The most damage was “removed bark” (65.34%) and occurred on the lower parts of the tree, the butt end (55.11%) and root collar (32.39%). The average size of the damage was 197.08 cm2. A statistically significant correlation was found between the damage position and the diameter at the breast height (p < 0.05) and the damage position and damage size (p < 0.01) by Spearman correlation analysis. The conducted analysis by the chi-squared test showed that there is a statistically significant difference in the proportion of damage for trees with different distances to the nearest skid road (p = 0.0487), but the share of damaged trees did not decrease by increasing the distance from the skid road.

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“…Our approach may be applied in other modelling context where spatial data are used by following the steps in Figure 7. It could be the case of recent studies on habitat selection (Oppel et al, 2004;Anderson et al, 2005), nesting habitat (García-Ripollés et al, 2005), foraging habitat ; feeding response (Gavashelishvili and McGrady, 2006), damage of forests (Božić et al, 2006), aquatic plant richness (Edvarsen and Økland, 2006), shifts in the vegetation occurrence (Tan and Beklioglu, 2005), or land use change (Aspinall, 2004).…”

Section: Discussionmentioning

confidence: 99%

Ecología y conservación del Cernícalo Primilla durante el periodo premigratorio

Tena¹,

de²

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Dormideros comunales premigratorios de Cernícalo Primilla durante el verano boreal Capítulo 2 2.1. Análisis y modelado de la distribución espacial de la abundancia del Cernícalo Primilla durante el verano: el papel de la autocorrelación espacial 2.2. Importancia de las áreas premigratoria en la conservación del Cernícalo Primilla: uso del espacio y selección de hábitat durante el periodo premigratorio 2.3. El papel del barbecho en el uso del hábitat por el Cernícalo Primilla durante el periodo premigratorio: implicaciones en la conservación de la abolición del barbecho obligatorio 2.4. Selección de hábitat de caza por el Cernícalo Primilla Falco naumanni durante el periodo premigratorio Conclusiones Anexo Implicaciones en la conservación y gestión ambiental del uso del módulo estadístico de partición jerárquica Agradecimientos Mabey, S.E. & Watts, B.D. 2000. Conservation of landbird migrants: addressing local policy. Studies in Avian Biology 20, 99-108. Mac Nally, R. 2000. Regression and model-building in conservation biology, biogeography and ecology: The distinction between and reconciliation of 'predictive' and 'explanatory' models. Biodiversity and Conservation 9,

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Modelling the damage status of silver fir trees (Abies alba Mill.) on the basis of geomorphological, climatic and stand factors

Cited by 6 publications

References 29 publications

The incidence of mistletoe (Viscum album ssp. abietis) on silver fir (Abies alba) in Croatia

The incidence of mistletoe (Viscum album ssp. abietis) on silver fir (Abies alba) in Croatia

Damages of Skidder and Oxen Logging to Residual Trees in Uneven-Aged Mixed Forest

Ecología y conservación del Cernícalo Primilla durante el periodo premigratorio

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