Poster Fundamentos de investigación
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The document characterizes the natural regeneration of sessile oak (Quercus petraea) in three microhabitats (B, M1, M2) present in a reclaimed coal mine in Northern Palencia, Spain. Seedling characteristics such as height, diameter, dead branches, and density differed significantly among microhabitats. Environmental conditions like light level, moisture, shrub protection, and aspect influenced seedling survival, with higher survival found in microhabitats with more shrub protection and moisture.
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![Influence of microhabitat in the natural regeneration of Quercus petraea in restored coal mines (Northern Palencia, Spain) PALOMA TORROBA 1 , Mª Pilar Zaldívar García 2 , Mª Belén Fernández-Santos 3 & Carolina Martínez-Ruiz 1,4 1 Area of Ecology, Department of Agro-Forestry Sciences, University of Valladolid, Spain. E-mail: paloma.torroba@gmail.com 2 Area of Botany, Department of Agro-Forestry Sciences, University of Valladolid, Spain 3 Area of Ecology , Faculty of Biological Sciences, University of Salamanca, Spain 4 Sustainable Forest Management Research Institute UVa-INIA (Spain) Objective Methods ,[object Object],It is possible to detect differences in seedling characteristics among microhabitats Results Conclusions 12 th EEF Congress. Avila 2011 Nº de C omunicación P óster: 57 Environmental conditions limits seedling survival Height (cm) H=37.07; gl=2; p<0.0001; Kruskal-Wallis test H=7.98; gl=2; p=0.0185; Kruskal-Wallis test Diameter (mm) ± S.E. B (n=1307 ind.) M1 (n=248) M2 (n=60) M1: Higher size and Pearson´s coefficient (r). Maybe because of higher light level and forest influence Age and shrub protection influence branch mortality H=40.99; gl=2; p<0.0001; Kruskal-Wallis test ± S.E. B (n=1307 ind.) M1 (n=248) M2 (n=60) a c b % dead branches Shrub protection High presence of one-year-old seedlings in M2 Hydric stress is more dangerous than herbivory + seedling density When environmental conditions are worse, seedling are placed where shrub protection and moisture (moss is its sign) are higher. Aspect influences seedling survival and growing up in forest microhabitat 12 m 6 m 8 m 5.7 % 61.0 % Edge width Environmental gradient % shrub cover/plot 70.0 % B M1 M2 20 plots/microhabitat Collected data: morphological parameters presence of moss shrub protection Problems of hydric stress because of climate and soil characteristics Density (ind./m 2 ) a b c Wald st.=256.97; gl=2; p<0.0001; ANOVA based on Poisson Age structure χ 2 =65.47; gl=4; p<0.0001; Chi-square test F (2, 57) = 0.47; p = 0.629; ANOVA 1-year-old seedling density B (n=1307 ind.) M1 (n=248) M2 (n=60) B (n=20 plots) M1 (n= 20) M2 (n=20) a a b ab a b Shrub protection B M1 M2 Kruskal-Wallis test Average angle (º) 3.3 147.7 241.7 p<0.0001 Average% shrub cover 11.7 72.9 83.1 p<0.0001 a a b % moss presence per plot (n=20) ± S.E. H=17.82; gl=2; p=0.0001; Kruskal-Wallis test Density (ind./m 2 ) a b U=6.00; gl= p=0.003; Mann-Whitney U test ± S.E. North aspect (n=14) South aspect (n=6) a b Height (cm) t=-12.70; gl=1303; p<0.0001 t=-7.51; gl=1304; p<0.0001 a b Diameter (mm) North aspect (n=509 ind.) South aspect (n=798) t-Student test ± S.E.](https://image.slidesharecdn.com/posterpalomatorroba-111023125056-phpapp02/85/Poster-Fundamentos-de-investigacion-1-320.jpg)
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Quantification of deadwood littered by Acacia spp. in semi-arid ecosystems of...
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