Biotic Homogenization as a Model of the Effects

Biotic Homogenization as a Model of the Effects of Disturbances on Patterns of Community Structure Taxonomic Spatial Temporal Life cycle Trophic Assumptions ? ? ?

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Model for Predicting Patterns of Community Structure EXAMPLE: Linear Response Increasing Level of Richness Assumption is relationship between increases in heterogeneity and increase in biodiversity (linear or nonlinear, but positive over range of increasing levels of heterogeneity)

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Model for Predicting Patterns of Community Structure EXAMPLE: Non-linear Response Increasing Level of Richness Assumption is relationship between increases in heterogeneity and increase in biodiversity (non-linear, but positive over range of increasing levels of heterogeneity)

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Model for Predicting Patterns of Community Structure EXAMPLE: Non-linear Response Increasing Level of Richness Assumption is relationship between increases in heterogeneity and increase in biodiversity (non-linear, but positive over range of increasing levels of heterogeneity)

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Model for Predicting Patterns of Community Structure EXAMPLE: Non-linear Response Increasing Level of Richness Assumption is relationship between increases in heterogeneity and increase in biodiversity (non-linear, but positive over range of increasing levels of heterogeneity)

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Biotic Homogenization as a Model of the Effects of Disturbances on Patterns of Community Structure EXAMPLE: Linear Response Increasing Level of Stress Assumption is relationship between increases in stress and increase in homogenization (linear or non-linear, but positive over range of increasing levels of stress)

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Biotic Homogenization as a Model of the Effects of Disturbances on Patterns of Community Structure EXAMPLE: Linear Response Increasing Level of Stress Usually thought of as descriptive of response patterns to increased stress, but also can be used to predict responses to improved conditions

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Biotic Homogenization as a Model of the Effects of Disturbances on Patterns of Community Structure EXAMPLE: Linear Response Increasing Level of Stress Example of predicting a response to improved conditions

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Biotic Homogenization as a Model of the Effects of Disturbances on Patterns of Community Structure EXAMPLE: Non-Linear (Convex Response) Increasing Level of Stress Example of predicting a response to improved conditions

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Biotic Homogenization as a Model of the Effects of Disturbances on Patterns of Community Structure EXAMPLE: Non-Linear (Concave Response) Increasing Level of Stress Example of predicting a response to improved conditions

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Biotic Homogenization as a Model of the Effects of Disturbances on Patterns of Community Structure EXAMPLE: Curvilinear (Logistic Response) Increasing Level of Stress Example of predicting a response to improved conditions

Taxonomic Spatial Temporal Life cycle Trophic Increasing Heterogeneity Biotic Homogenization as a Model of the Effects of Disturbances on Patterns of Community Structure EXAMPLE: Curvilinear (Logistic Response) Increasing Level of Stress Example of predicting a response to improved conditions