Ecological Archives E087-035-A8

Ho Jung S. Yoo. 2006. Local population size in a flightless insect: importance of patch structure-dependent mortality. Ecology 87:634–647.

Appendix H. Figures showing sensitivity tests for the spatially explicit model.

 
   FIG. H1.   Mean crawler abundance at steady state, Mi*, vs. local patch density for aerial travel distances, α, of 1 – 20 m.  Each plot represents the mean of 5 simulations run for 200 generations.  (The α = 5 m plot is shown in Fig. 7D for 15 runs and is not pictured here.)

 

 
   FIG. H2.  Mean crawler abundance at steady state, Mi*, vs. local patch density, for varying levels of ground travel, γ, and maximum dispersal distance, τmax.  Each plot represents the mean of 5 simulations run for 200 generations.

 

 
   FIG. H3.  Mean crawler abundance at steady state, Mi*, vs. local patch density, for varying levels of neonate emigration, , and dispersal distance, τ (= α + γ), where α = 5 and τ max/ τ = 4.  Each plot represents the mean of 5 simulations run for 200 generations.

 

 
   FIG. H4. Effect of density-dependent neonate emigration, , on mean crawler abundance at steady state.  (A) Hypothetical levels of density-dependent neonate emigration (low or high, positive or negative).  (B) Corresponding mean crawler abundance, Mi*, vs. local patch density.  Each plot represents 1 simulation run for 200 generations.


[Back to E087-035]