Ecological Archives E086-065-A2

Derek M. Johnson and Carol C. Horvitz. 2005. Estimating postnatal dispersal: tracking the unseen dispersers. Ecology 86:1185–1190.

Appendix B. Population dynamics in the upland and flood zone in the simulation model.

Predicted adult C. fenestrata population dynamics in the upland and flood zone habitat based on a deterministic simulation of the population projection matrix model. No natal dispersal was assumed in this model. The model with post-natal dispersal similarly converged to non-transient cyclical dynamics in well less than 700 time steps of initiation, but with greater fluctuations. Initial numbers of each life stage in each patch were set according to the average density observed over the entire study area over a 2-yr field study (Johnson 2004a). Dynamics in the upland habitat are the result of population projections according to transitions in the Mnf matrix and immigration from the flood zone, while dynamics in the flood zone are the result of population projections according to the transitions in the Mnf matrix during non-flood time steps, according to transitions in the Mf matrix during time steps with flooding, and immigration from the upland.

 

LITERATURE CITED

Johnson, D. M. 2004. Life history and demography of Cephaloleia fenestrata (Hispinae: Chrysomelidae: Coleoptera). Biotropica 36:352–361.



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