BULLETIN FLORIDA STATE MUSEUM


 Figure 16.-Kibler, the most heterogeneous Reclaimed, Ungrazed site. Reclamation
consisted of leveling the overburden piles, leaving scattered ponds (right background) and
marshes. Oldfield succession is arrested by mowing twice a year. Since the implementa-
tion of reclamation regulations in 1975, a combination of mowed grassland with ponds or
lakes is referred to as "land and lakes reclamation."


musculus), and two species of shrews (Blarina carolinensis and Cryptotis
parva). As the willow thicket developed and later the wax myrtle canopy
closed, the semi-arboreal P. gossypinus became very abundant, Sigmo-
don populations remained unchanged, and the Mus and shrews became
less abundant. The result was that diversity values generally decreased
from the youngest stage (Swift) to the oldest (A-3), whereas abundance
measures increased during the sequence. In comparison with other
treatments (Fig. 18), the diversity and abundance of small mammals on
clay wastes were moderate.
 UNRECLAIMED PITS AND SPOIL PILES.-Beginning the successional
 sequence, moderately high small mammal diversity and abundance val-
 ues were found in the 0-5 year old treatment (Fig. 16), indicating a
 strong colonization of the young herbaceous vegetation. Colonization of
 the unreclaimed land was by Mus, Sigmodon, Oryzomys, and some P.
 gossypinus. Single oldfield mice (Peromyscus polionotus) were captured
 at two of the youngest sites, Big Teeth and Shark Tooth (Fig. 6), but none
 occurred on older sites.


VOL. 30 NO. 3