Andrew thought up a systematic way of developing a null model for estimating parasite coverage using host richness and parasite richness.
Step 1: determine host richness in each ecoregion
this can be done using the empirical data or assuming probability of occupancy for each host species
create ecoregionxspecies matrix and calculate host richness
Step 2: determine parasite richness in each host species
This can be done using the empirical data or assuming probability of occupancy for each parasite
create hostxparasite matrix and calculate parasite species richness
Step 3: simulate coverage of parasite in host range
Define a probability of presence for each parasite in each host in each ecoregion
simulate and calculate parasite richness in each ecoregion
Compare to actual data to determine actual coverage of parasite
Andrew thought up a systematic way of developing a null model for estimating parasite coverage using host richness and parasite richness.
Step 1: determine host richness in each ecoregion this can be done using the empirical data or assuming probability of occupancy for each host species create ecoregionxspecies matrix and calculate host richness
Step 2: determine parasite richness in each host species This can be done using the empirical data or assuming probability of occupancy for each parasite create hostxparasite matrix and calculate parasite species richness
Step 3: simulate coverage of parasite in host range Define a probability of presence for each parasite in each host in each ecoregion simulate and calculate parasite richness in each ecoregion
Compare to actual data to determine actual coverage of parasite