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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 2

Short-term repeated-measures analysis of variance for differences among representative rodent population densities, Sevilleta National Wildlife Refuge and Placitas , May 1997 to February 1998

Species Source DF F value p
Dipodomys Site 1 5.75 0.0745
ordii Error (Site) 4
(Ord's kangaroo rat) Time 8 2.13 0.0616
Time x Site 8 2.13 0.0616
Error (Time) 32
Perognathus Site 1 27.09 0.0065
flavescens Error (Site) 4
(Plains pocket mouse) Time 8 4.61 0.0008
Time x Site 8 4.61 0.0008
Error (Time) 32
Peromyscus Site 1 2.70 0.1759
maniculatus Error (Site) 4
(Deer mouse) Time 35 2.45 0.0432
Time x Site 35 1.57 0.1868
Error (Time) 140
Peromyscus Site 1 2.25 0.2084
leucopus Error (Site) 4
(White-footed 
 mouse) Time 8 7.83 0.0001
Time x Site 8 5.79 0.0001
Error (Time) 32
Peromyscus Site 1 5.09 0.0870
truei Error (Site) 4
(Pinyon mouse) Time 8 7.09 0.0001
Time x Site 8 4.94 0.0005
Error (Time) 32
Neotoma Site 1 1.06 0.3618
albigula Error (Site) 4
(White-throated 
 wood rat) Time 8 1.17 0.3443
Time x Site 8 0.82 0.5944
Error (Time) 32
Reithrodontomys Site 1 4.58 0.0990
megalotis Error (Site) 4
(Western harvest mouse) Time 8 4.67 0.0007
Time x Site 8 1.64 0.1530
Error (Time) 32

Density = numbers of mice per hectare.

Main Article

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