1. Using matrix population models to inform biocontrol agent selection for garlic mustard ( Alliaria petiolata ) Dr. Adam S. Davis USDA-ARS Invasive Weed Management Unit University of Illinois Department of Crop Sciences Urbana, IL
12. Elasticity analysis n t+1 = A * n t (Caswell, 2001) what are consequences of proportional changes in population growth rate? elasticity of to lower level parameters
33. Development of spatially-referenced functions for describing density dependence of Alliaria petiolata demography logistic regression of s rf on binned data reference plant t 0 t 1
34. Density dependent rosette survival to reproductive maturity Odds ratio of rosette survival * *with respect to seedlings per distance bin
35. Y = 1.06*e -0.0087*X R 2 = 0.68, P<0.05, 0 NS P(Survive 1yr) Population density t 0 (plants m -2 ) Density dependent rosette survival to reproductive maturity
36. Y = 1440*e -0.014*X R 2 = 0.84, P<0.05, 0 NS Fecundity (seeds plant -1 ) Population density t 0 (plants m -2 ) Density dependent fecundity ***** The damage to reproductive output due to density is set up in the previous growing season. Over- crowded rosettes do not recover as ranks thin!
37. Y = 0.218*e -0.0003*X R 2 = 0.08, P<0.05, 0 NS P(Survive to rosette) Population density t 0 (plants m -2 ) Density dependent seedling survival to rosette stage
38. Y = 0134.*e -0.00014*X R 2 = 0.99, P<0.05, 0 NS P(Survive to rosette) Population density t 0 (plants m -2 ) Density dependent seedling survival to rosette stage, IP
39. Y = 0.30*e -0.0003*X R 2 = 0.99, P<0.05, 0 NS P(Survive to rosette) Population density t 0 (plants m -2 ) Density dependent seedling survival to rosette stage, H
40. Y = 1954*e -0.0024*X R 2 = 0.40, P<0.05, 0 NS PAR Mar 7 (umol m -2 ) Population density t 0 (plants m -2 ) Light-mediated seedling recruitment