Eight genera (Blarina
, Sorex, Sigmodon, Reithrodontomys, Peromyscus, Ochrotomys, Microtus, and Tamias) and eight different species were captured, with Blarina
carolinensis (Soricidae) being the most abundant.
brevicauda (Say, 1823) (Northern Short-tailed Shrew)
Two species of shrews were caught, the short-tailed shrew, Blarina
brevicauda, and the least shrew, Cryptotis parva.
These species make up the prey base for many small predatory species such as lizards of the genera Scincella (Slater 1949; Lewis 1951; Hamilton & Pollack 1961; Brooks 1964) and Plestiodon (formerly Eumeces) (Fitch 1954), shrews of the genus Blarina
(Ritzi et al.
Within the mammals, 37% of captures were Blarina
We routinely captured over twenty animals (80 to 100 traps) at each first post-dusk or post-dawn run; a total of 57 shrews (52 Blarina
and 5 Sorex) were collected in 1054 trap-nights.
We report the second, third, and fourth records in Oklahoma for Sorex longirostris and new country records for five species: Blarina
carolinensis, Sciurus carolinensis, Ochrotomys nuttalli, Reithrodontomys humulis, and Oryzomys palustris.
We found that meadow voles (Microtus pennsylvanicus) and shrews (Sorex cinereus, Blarina
brevicauda) dominated large, open wetlands, while southern red-backed voles (Clethrionomys gapperi) were more prevalent at smaller sites surrounded by mixed forest stands.
SPECIES # COLLECTED # TESTED # POSITIVE Microtus ochrogaster 138 58 2 Microtus pinetorum 8 6 0 Peromyscus maniculatus 39 15 0 Peromyscus leucopus 39 14 0 Reithrodontomys megalotis 20 8 0 Mus musculus 1 0 0 Blarina
hylophaga 7 0 0 TOTALS 252 101 2 SPECIES % POSITIVE Microtus ochrogaster 3.
carolinensis has been found in several types of habitat ranging from pastures, open woods (both pine stands and deciduous), and dense thickets (see Genoways & Choate 1998).
Species Code Special Pitfall Sherman Captured Blarina
brevicauda BLBR 0.
carolinensis (southern short-tailed shrew) inhabits many habitats in the southeastern United States.
carolinensis taken from 5 October to 21 December 2004 were the result of trap mortality from a larger study investigating habitat use.
Food habits of Blarina
, Peromyscus, and Microtus in relation to an emergence of periodical cicadas (Magicicada).
Cytochrome b mitochondrial DNA and 16S rRNA sequence analyses support a monophyletic origin for the genus Blarina
, with phylogeographic structuring of northern short-tailed shrews into well-defined groups to the east and west of the Mississippi River basin (9).