fileadmin/content/institute/biologie/arbeitsgruppe-stiegel/dokumente/promotion/stiegeletal2020-does-the-shrub-layer-act-as-an-intermediary.pdf
fi nal model that included all explanatory variables without strong correlations. For insect abundance and abundances of insect orders, comparisons were made using the fi nal model. All models included [...] or both. The strength of evidence for different models was similar based on using ΔBIC = 0–2 (Kass & Raftery, 1995). The fi nal model and model comparisons were done using the following R codes, re- [...] by Fagus sylvatica L. (European beech; Fagace- ae) in Central Germany. Following model selection, a linear mixed model was used to analyse the associations between abiotic factors (air temperature and
fileadmin/content/institute/biologie/arbeitsgruppe-stiegel/dokumente/promotion/stiegel-mantilla-contreras2018-environment-vs-plant-ontogeny.pdf
(US, n = 20), lower (LC, n = 20) and upper canopy (UC, n = 17) are represented by temperature and relative air humidity. Leaf trait parameters of F. sylvatica (US: n = 20; LC: n = 20; UC: n = 20) are represented [...] were determined with linear mixed models (LMM) and a following model selection. Calculations were done using the R libraries lme4 for LMM [55] and MuMIn for the model selection [56]. Herbivore attack levels [...] the nonparametric data. All models contained the study site as a random effect. For the herbivore attack levels on F. sylvatica leaves caused by the eight feeding traces, model comparisons were conducted
fileadmin/content/institute/biologie/arbeitsgruppe-stiegel/dokumente/promotion/stiegel-mantilla-contreras2018-experimental-study-of-environmental-effects.pdf
(173 cm2 g-1 ± 25.9 SD), intermediate for A. pseudoplatanus (167 cm2 g-1 ± 20.3 SD), and lowest for C. betulus (155 cm2 g-1 ± 20.8 SD). Differences of SLA between the treatments (microcli- mate and soil [...] n.s. (c) Figure 3: Chlorophyll content of (a) Fagus sylvatica (n = 20), (b)Acer pseudoplatanus (n= 15), and (c)Carpinus betulus (n = 20) for the different treatments in the greenhouse experiment. Boxplots [...] and relative air humidity. Microclimatic data were measured every hour with data loggers (iButton, Model DS1923,Maxim Integrated, California, USA). Data loggers were installed in the centers at about 1.5
fileadmin/content/institute/biologie/arbeitsgruppe-stiegel/dokumente/landwende-poster-english.pdf
cover the product interests of the members. In addition, they plan to achieve: • 500 CSA members • 20 gardeners • Economically resilient community • Working for the real local people, not for shops or [...] Success “Agriculture is the basis of our economy in general. Reforming this basis, CSA can become a model for a much needed shift towards a truly sustainable economy on a human scale”. „A study shows that
fileadmin/content/institute/mathematik/winter/2011-dissertation-winter.pdf
: ( )c a b x⋅ = 20 : (4 40) 0,125⋅ = oder 40 : 4 10 20 :10 2= → = ApropLin1 Unterstellung einer nicht vorhandenen Linearität oder fehlerhafte Übertra- gung von Linearitäten 40 4 10 20 10x= ⋅ → = ⋅ oder [...] oder 40 : 4 10 : 20 10x= → = ApropInversOp2 Ermittlung Zusammenhang a und c über Differenz: b za c y a y z b x− = → = ⋅ → − = 4 20 16− = 4 16 16 4 4z= ⋅ → = ⋅ 20 420 15→ − = ApropInvOp2 Ermittlung Zusammenhang [...] hat: So gilt zwar 20.000 2.000 20mm cm m= = und es kann im Bereich der natürlichen Zahlen agiert werden, doch eine Umrechnung in Kilometer bedingt die Erweiterung des Zahlenraums (20 0,02m km= ). Anfo
fileadmin/content/institute/biologie/arbeitsgruppe-stiegel/dokumente/promotion/stiegel2018-microclimatic-effects-diss.pdf
with linear mixed models. For herbivory of F. sylvatica, model comparison was conducted for effects of forest layer, microclimate (2 parameters) and leaf traits (5 parameters) with a model specification (Equation [...] LEAVES’ PALM 39 Model comparison for the three tree species in the understorey was assessed for effects of species, microclimate (2 parameters) and leaf traits (5 parameters) with a model specification (Equation [...] transformed and all models contained study site as a random effect. Calculations were done using the R libraries lme4 (Bates et al., 2017) and MuMIn (Bartoń, 2016). We selected the best model based on the Bayesian
fileadmin/content/institute/biologie/arbeitsgruppe-stiegel/dokumente/promotion/stiegeletal2017-reading-the-leaves-palm.pdf
generalized linear mixed models. For herbivory of F. sylvatica, model comparison was conducted for effects of forest layer, microclimate (2) and leaf traits (5) with the following model specification: lmer [...] ð1jsiteÞ;REML¼ FALSEÞ Model comparison for the three tree species in the understory was assessed for effects of species, microclimate (2) and leaf traits (5) with the following model specification: lmer [...] Microclimate along the vertical forest gradient. Microclimatic conditions for understory (n = 20), lower (n = 20) and upper canopy (n = 17) represented by (a) temperature and (b) relative air humidity. Boxplots
fileadmin/content/seminare/sams/dokumente/curriculum-vitae-ignacz.pdf
R (von Balázs Vedres) 2019 ECPR Summer School Discrete Choice Models with R (von Garret Glasgow) 2011 44th Essex Summer School Causal Models and Structural Equations (von Peter Schmidt) 2010 43rd Essex [...] FrankfurtMA 2019/20 Wintersem. Goethe University FrankfurtMA 2019 Sommersem. Goethe University FrankfurtMA 2018 Winter Term Lund University (mit Carolin Schütze) MA/PhD Causal Models and Structural Equations [...] Sommersem.D Goethe University FrankfurtBA Introduction to Statistical Analysis (Einführungskurs, SPSS) 2019/20 Wintersem. Goethe University FrankfurtBA 2019 Sommer Sem. Goethe University FrankfurtBA 2014/15 Wintersem
fileadmin/content/institute/biologie/arbeitsgruppe-christian/dokumente/studium-und-lehre/modulkataloge/mk-mage-psto2020-bio-stand-hese-2021-22-.pdf
Davon Präsenzzeit 30 h Geplante Gruppengröße 20 Selbststudium 30 h M 4 : M od ul pr üf un g Modulprüfung Exam Prüfungsnummer 131900405 Prüfungsumfang 10-20 Seiten Prüfungsform Projektbericht Prüfungsv [...] Erzwiss.) M 6: Aktuelle Themen aus Biologie und Biologiedidaktik Fach B Die Master Thesis im Umfang von 20 Leistungspunkten kann in jedem der studierten Teilstudiengänge erstellt werden. M.Ed. Lehramt an G [...] Methodenkompetenz: Humanbiologische Inhalte werden anhand praktischer Übungen und mit Hilfe von Model- len, die von den Studierenden durchgeführt und erklärt werden, vermittelt. Die unter- schiedlichen
fileadmin/content/institute/biologie/arbeitsgruppe-christian/dokumente/studium-und-lehre/modulkataloge/mk-masek1-po2015-biologie-fsa-3.2.pdf
Davon Präsenzzeit 30 h Geplante Gruppengröße 20 Selbststudium 30 h M 4 : M od ul pr üf un g Modulprüfung Exam Prüfungsnummer 519845000 Prüfungsumfang 10-20 Seiten Prüfungsform Projektbericht Prüfungsv [...] Erzwiss.) M 6: Aktuelle Themen aus Biologie und Biologiedidaktik Fach B Die Master Thesis im Umfang von 20 Leistungspunkten kann in jedem der studierten Teilstudiengänge erstellt werden. M.Ed. Lehramt an S [...] Methodenkompetenz: Humanbiologische Inhalte werden anhand praktischer Übungen und mit Hilfe von Model- len, die von den Studierenden durchgeführt und erklärt werden, vermittelt. Die unter- schiedlichen