The American Midland Naturalist

Articles from Vol. 139, No. 1, January

Ants Create Hummocks and Alter Structure and Vegetation of a Montana Fen
ABSTRACT.-The ants Formica podzolica, Myrmica fracticornis and M. incompleta commonly build nests in a large peat and complex in N-central Montana. Nests of Formica are much larger than those of Myrmica spp. and occur in a microtopographic mosaic of...
Behavioral Interactions between Juvenile Nine-Banded Armadillos (Dasypus Novemcinctus) in Staged Encounters
W. J. LOUGHRY,1 GENA M. DWYER2 AND COLLEEN M. McDONOUGH ABSTRACT.-Juvenile nine-banded armadillos (Dasypus novemcinctus) discriminate between the scents of siblings and nonsiblings, spending more time near and investigating more often the scent of a...
Bird Flight Characteristics near Wind Turbines in Minnesota
ABSTRACT.-During 1994-1995, we saw 70 species of birds on the Buffalo Ridge Wind Resource Area. In both years bird abundance peaked in spring. Red-winged blackbirds (Agelaius phoeniceus), mallards (Anas platyrhynchos), common grackles ( Qiscalus quiscula),...
Capture Rates of Invertebrate Prey by the Pitcher Plant, Sarracenia Purpurea L
ABSTRACT.-I examined capture rates of invertebrate prey by pitchers of the purple pitcher plant Sarracenia purpurea, in western Newfoundland, Canada. While captures were diverse, Hymenoptera (mostly ants), Coleoptera and Gastropoda accounted for 69%...
Diet of Common Nighthawks (Chordeiles Minor: Caprimulgidae) Relative to Prey Abundance
L. DANIELLE TODD, RAY G. POULIN1 AND R. MARK BRIGHAM ABSTRACT.-Optimal foraging theory predicts that when prey density is low, predators should employ a generalist feeding strategy and take prey in proportion to their abundance. The purpose of this study...
Distribution of Biomass in an Indiana Old-Growth Forest from 1926 to 1992
ABSTRACT.-We examined the structural and spatial distribution of woody biomass in relationship to disturbance in an Indiana old-growth deciduous forest over a 66-yr period. Analysis was done on the core 7.92 ha of a 20.6-ha forest in which every tree...
Endophyte-Infected and Uninfected Fescue Seeds Suppress White-Footed Mouse (Peromyscus Leucopus) Reproduction
MICHAEL G. TANNENBAUM,1 SARA L. SEEMATTER AND DANA M. ZIMMERMAN Division of Science, Truman State University, Kirksville, Missouri 63501 ABSTRACT.-Growth, reproduction, circulation, and thermoregulation in domestic livestock and laboratory rodents are...
First Report of a Symphoretic Association between Nanocladius Branchicolus Saether (Diptera: Chironomidae) and Argia Moesta (Hagen) (Odonata: Coenagrionidae)
ABSTRACT.-In Cartier Creek, a small stream in southeastern Ontario, larvae of the chironomid Nanocladius branchicolus Saether were found associated symphoretically with nymphs of the damselfly Argia moesta (Hagen). This is the first report of a symphoretic...
Geographic Variation in Growth and Sexual Size Dimorphism of Bog Turtles (Clemmys Muhlenbergii)
DENNIS W. HERMAN1 Department of Herpetology, Zoo Atlanta, 800 Cherokee Ave. S.E., Atlanta, Georgia 30315 ABSTRACT.-We examined sexual size dimorphism (SSD) and growth rates in samples of bog turtles (Clemmys muhlenbergii) from North Carolina, Pennsylvania...
Influence of Drainage Connetivity, Drainage Area and Regional Species Richness on Fishes of the Interior Highlands of Arkansas
ABSTRACT.-There has been strong recent interest in the "macroecological" approach of explaining local community phenomena as a consequence of patterns at larger geographic scales. Various authors have suggested that if local observations can be explained...
Metamorphosis of Freshwater Mussel Glochidia (Bivalvia: Unionidae)on Amphibians and Exotic Fishes
ABSTRACT.-This study determined that inexpensive and easily maintained amphibians and exotic fishes could act as hosts for two species of native North American unionid mussels, and bypass the need to identify native hosts when the object is to culture...
Moths Consumed by Corynorhinus Townsendii Virginianus in Eastern Kentucky
LAURA S. BURFORD1 AND MICHAEL J. LACKI Department of Forestry, University of Kentucky, Lexington 40546 ABSTRACT.-We collected culled forewings of moths from 26 feeding roosts to determine the species of moths consumed by the Virginia big-eared bat (Corynorhinus...
Raising and Monitoring Tame Ruffed Grouse (Bonasa Umbellus) for Field Studies
PETER B. SHARPE,1 ALAN WOOLF AND DANIEL D. ROBY2 Cooperative Wildlife Research Laboratory and Department of Zoology, Southern Illinois University, Carbondale 62901 ABSTRACT.-Tame birds have been used for ecological field studies, but rarely are birds...
Recent Records of the Cotton Mouse (Peromyscus Gossypinus) in Illinois
ABSTRACT.-We document the first known occurrences of the cotton mouse (Peromyscus gossypinus) in Illinois since 1909. Mean hind foot length and body mass of cotton mice from study areas in two counties were significantly greater than sympatric white-footed...
Response of Herpetofaunal Communities to Forest Cutting and Burning at Chesapeake Farms, Maryland
ABSTRACT.-The distribution and abundance of amphibians and reptiles in forest stands subjected to salvage cutting and prescribed burning were compared with their unmanaged counterparts. The study was conducted on the Atlantic coastal plain at Chesapeake...
Summer Bed Sites of Elk (Cervus Elaphus) in the Black Hills, South Dakota: Considerations for Thermal Cover Management
JOSHUA J. MILLSPAUGH1 Wildlife Science Group, University of Washington. Box 352100, Seattle 98195 KENNETH J. RAEDEKE Wildlife Science Group, University of Washington, Box 352100, Seattle 98195 GARY C. BRUNDIGE Custer State Park, HC 83 Box 70, Custer,...
The Reproductive Cycles of the Vagrant Shrew (Sorex Vagrans) and the Masked Shrew (Sorex Cinereus) in Montana
KERRY R FORESMAN AND R. DANIEL LONG1 Division of Biological Sciences, University of Montana, Missoula 59812 ABSTRACT.-The reproductive activities of Sorex vagrans and S. cinereus in western Montana were documented using histological methods. Testicular...
Vector Behavior and the Transmission of Anther-Smut Infection in Silene Alba
SONIA M. ALTIZER 1 ABSTRACT.-Anther-smut disease caused by Ustilago violacea is transmitted by insects that visit diseased flowers and then deposit spores on healthy Silene alba plants. The transmission rate of this disease therefore depends on spore...