- For list of CERA mammals, see attached PDF below
- Iowa Endangered Mammals
- Indiana Bat Myotis sodalis
- Plains Pocket Mouse Perognathus flavescens
- Red-backed Vole Clethrionomys gapperi
- Spotted Skunk Spilogale putorius
- Iowa Threatened Mammals
- Least Shrew Cryptotis parva
- Souther Bog Lemming Synaptomys cooperi
Indiana Bat (Myotis sodalis) is a federal and state listed endangered species. The bat migrates into Iowa in the spring and uses trees for maternity roost colonies during the summer months. It is known to roost in Jasper County. Suitable habitat includes roost trees in areas with at least 15% tree cover within 0.5 mile and a permanent water source within 0.5 mile. Roost trees are over 9 inches DBH and include shagbark and shellbark hickory, either dead or alive, and bitternut hickory; American elm, slippery elm, eastern cottonwood, silver maple, white oak, red oak, post oak, and shingle oak that are dead and have plates or slabs of loose bark on the trunks or branches.
Observational Data Set for CERA
Years: 2000-present Data per observation: Date, location, species, number of individuals, notes, observer(s) Availability: Excel file from the CERA Manager.
Student Research
- Madson, Chris. 1969. Size, distribution, and movement of squirrel populations in two woodlots on the Conard Experimental Research Area. Biology, Karl DeLong. [capture-recapture of fox squirrels; estimates of squirrel populations in two areas of CERA; also estimates of individual territoriality, range size based on trap data; includes weather, capture-recapture, and individual squirrel movement data]
- Murch, Don and Dave Wright. 1974. Further study of the western fox squirrel at CERA. Biology. [capture-recapture, ear-tagging of fox squirrels; estimates of squirrel home range of 250 yd. x 300 yd. wooded area at CERA (average = 115 yards); estimates of homing rates of squirrels, maximum distance = 1100 yards; observed imbalance in trapping ratio between males and females; includes capture-recapture, homing distance data, and maps of areas trapped]
- Madson, Chris. (1970?) Population and activity concentrations in the western fox squirrel on the Conard Experimental Research Area. [observation, capture-release, and tree examination methods in oak-hickory woodland of CERA; estimates of centers of activity and population concentrations of fox squirrels; population concentration found in ravine of wooded area studied; includes map of location of population in studied area, capture data, observations, and squirrel residence data]
- Madson, Christopher. 1971. Behavior patterns of the western fox squirrel (Sciurus niger rufiventer) in and around its residences. Biology, Independent Project. Karl DeLong. [observational methods in oak-hickory woodland of CERA; fox squirrels observed to have few territorial tendencies; includes figures of traps used, squirrel sighting data]
- Carroll, Shauna. 1986. Fox squirrel vocalizations. Independent Project. [observation in wooded areas on Grinnell College campus; tail movement and vocalizations recorded in response to multiple predators; includes tail movement figures, categories of vocalizations]
