tlc/example-fragmentation.html

Example of complex systems approaches:
Habitat Fragmentation

study fragmentation of habitat and loss of biodiversity from four starting points

 

starting point 1: correlation

correlation between size of area and species numbers

equation is

data analysis -

log - log transformation

suggests scale independent processes

change in diversity is a function of change in relative size

from any size to any other smaller size

 

starting point 2: systems

use systems viewer

island biogeography

immigration vs. extinction

steady state solutions

 

starting point 3: network

use network viewer

focus on connectivity

percolation of disrupted links or cells in a CA

critical value

difference between the prediction from systems view to critical percolation value (Goodwin and Sole' ****)

 

starting point 4: lumpiness in scale

human disruptions, from energy, put novel gaps in the scale

lumpiness in scale dependence

leads to loss of species at edge of lumps

open to invasion