EISENBERG: MAMMALIAN SPECIES OF ORDWAY-SWISHER PRESERVE


 22

 20

 18-

 16-

U
U
14

S12-

 10
 8-
 8-

 6

 4-

 2-


83 84 85 86


Ross Lake
 P. gossypinus ]
 N. floridana [
 S. hispidus U


87 88 89 90
YEAR


91 92


Figure 3. Trapping results from the Ross Lake array during the interval 1983-1992. Not trapped in 1986,
1988, and 1989. Note Sigmodon hispidus disappears in 1983. Neotomafloridana maintains low numbers
but also absences. Peromyscus gossypinus prevails but oscillates from 0 to 21% trap success (see Table 3).

 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
 -1 5) 3 2 2 11 2 4e I T t~ l2 89


1 1 2
 1 1 1 5 1 1


 PgSh PgNfSh Pg Pg Pg Pg PgNf Pg Pg PgPf Pf Pf Pf

_ \_^_._i___.___;____


90
91


AL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 85
 AL /


 ^ju~
oa


 0^
&


Figure 4. Bottom:Total trapping results from the thesis of S. Brand on Ashley Transect (1985). Pg =
Peromyscus gossypinus; Nf = Neotoma floridana; Sh = Sigmodon hispidus; Pf= Podomys floridanus.
Top:Trapping results 1989 to 1991 (see Table 3). A replicate re-trapping of the Brand transect demonstrates
that during the drought P. gossypinus shifted range to closer to the dying marsh, and P. floridanus moved
downslope to "new station" #15. Numbers in circles = P. gossypinus; numbers = P. floridanus (number
caught per station).


I_ .


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