Diffusion and Home Range Parameters for Rodents: Peromyscus maniculatus in New Mexico

Details Diffusion and Home Range Parameters for Rodents: Peromyscus maniculatus in New Mexico Diffusion and Home Range Parameters for Rodents: Peromyscus maniculatus in New Mexico

2005-11-16

arxiv.org/abs/q-bio/0511028v2

Ecological Complexity 3 (2006) 64-70

Biology

Quantitative Biology

Populations and Evolution

The published paper in Ecol. Complexity has an old version of Figure 6. Here we have put the correct version of Figure 6

Scientific paper

10.1016/j.ecocom.2005.07.001

We analyze data from a long term field project in New Mexico, consisting of repeated sessions of mark-recaptures of Peromyscus maniculatus (Rodentia: Muridae), the host and reservoir of Sin Nombre Virus (Bunyaviridae: Hantavirus). The displacements of the recaptured animals provide a means to study their movement from a statistical point of view. We extract two parameters from the data with the help of a simple model: the diffusion constant of the rodents, and the size of their home range. The short time behavior shows the motion to be approximately diffusive and the diffusion constant to be 470+/-50m^2/day. The long time behavior provides an estimation of the diameter of the rodent home ranges, with an average value of 100+/-25m. As in previous investigations directed at Zygodontomys brevicauda observations in Panama, we use a box model for home range estimation. We also use a harmonic model in the present investigation to study the sensitivity of the conclusions to the model used and find that both models lead to similar estimates.

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