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Volume 5, Number 1—February 1999

Research

Statistical Sensitivity for Detection of Spatial and Temporal Patterns in Rodent Population Densities

Cheryl A. Parmenter, Terry L. Yates, Robert R. Parmenter, and Jonathan L. Dunnum
Author affiliations: University of New Mexico, Albuquerque, New Mexico, USA

Main Article

Table 1

Repeated-measures analysis of variance testing for differences among representative rodent population densitiesa, Sevilleta National Wildlife Refuge and Placitas, 1994-1998

Species Source DF F value p
Dipodomys Site 1 7.52 0.0517
ordii Error (Site) 4
(Ord's kangaroo rat) Time 35 2.19 0.0007
Time x Site 35 2.21 0.0006
Error (Time) 140
Perognathus Site 1 25.69 0.0071
flavescens Error (Site) 4
(Plains pocket mouse) Time 35 2.91 0.0001
Time x Site 35 2.89 0.0001
Error (Time) 140
Peromyscus Site 1 0.28 0.6233
maniculatus Error (Site) 4
(Deer mouse) Time 35 2.80 0.0001
Time x Site 35 1.18 0.2513
Error (Time) 140
Peromyscus Site 1 0.11 0.7609
leucopus Error (Site) 4
(White-footed mouse) Time 35 7.25 0.0001
Time x Site 35 4.56 0.0001
Error (Time) 140
Peromyscus truei Site 1 1.98 0.2328
(Pinyon mouse) Error (Site) 4
Time 35 3.77 0.0001
Time x Site 35 3.29 0.0001
Error (Time) 140
Neotoma Site 1 6.65 0.0614
albigula Error (Site) 4
(White-throated wood rat) Time 35 1.53 0.0431
Time x Site 35 1.65 0.0221
Error (Time) 140
Reithrodontomys Site 1 0.34 0.5906
megalotis Error (Site) 4
(Western harvest mouse) Time 35 4.04 0.0001
Time x Site 35 3.57 0.0001
Error (Time) 140

aDensity=number of mice per hectare.

Main Article

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