The American Midland Naturalist

Articles from Vol. 166, No. 2, October

A 100-Year Flood in a Low-Gradient Stream: Response of the Resident and Non-Resident Fish Assemblages
ABSTRACT.-Resident fish exhibited higher short-term resiliency than did non-resident fish to a 100 y flood in a low-gradient stream. In Jun. 2008, a substantial flood (400% higher than mean daily discharge) occurred in the Big Manistee River watershed...
A 183-Year History of Fire and Recent Fire Suppression Impacts in Select Pine and Oak Forest Stands of the Menominee Indian Reservation, Wisconsin
ABSTRACT.-Due to the paucity of long-term fire chronologies in the upper Midwest, we studied basal cross-sections dating back to 1822 and the impacts of recent fire suppression in pine and oak stands on the Menominee Indian Reservation in northeast Wisconsin....
A Remnant of an Incipient Speciation Event in the Simulium Arcticum Complex (Diptera: Simuliidae)
ABSTRACT.-By using cytogenetic analysis of larval polytene chromosomes from small samples of the Simulium arcticum complex of black flies (Diptera: Simuliidae) at the Coeur d'Alene River in northern Idaho in 2004 and 2005 we discovered a population that...
Cold Tolerance among Composting Earthworm Species to Evaluate Invasion Potential
ABSTRACT.-Exotic earthworm species that have traditionally been used for composting are purportedly intolerant of low temperatures, which may explain why they are rarely found outside of compost bins in temperate zones of North America. In contrast,...
Diversity of Ground Beetles (Coleoptera: Carabidae) in Relation to Habitat Type in West-Central Illinois
ABSTRACT.-The diversity of ground beetles in relation to habitat type was investigated in west-central Illinois from May to Oct. 2005 and 2006 using pitfall traps in six habitats: (1) prairie burned in 2004, (2) prairie burned in 2005, (3) early successional...
Effects of Competition and Predation on the Feeding Rate of the Freshwater Snail, Helisoma Trivolvis
ABSTRACT.-Foraging behavior of snails is affected by competition and risk of predation, both of which can be detected by chemical cues in the water. Freshwater snails are able to detect and respond to kairomones, from predators, and chemical cues, such...
Environmental Niche Modeling Reveals Climatic Differences among Breeding Ranges of Orchard Oriole Subspecies
ABSTRACT.-Environmental niche parameters of breeding ranges for two subspecies in the Orchard Oriole complex (Icterus spurius spurius and I. s. fuertesi) were characterized via ecological niche modeling. Niche models formulated from museum specimen collections...
Female Downstream-Hatching Migration of the River Shrimp Macrobrachium Ohione in the Lower Mississippi River and the Atchafalaya River
ABSTRACT.-The shrimp Macrobrachium ohione (Decapoda, Caridea) was once numerous in the Mississippi River System (MRS) as far north as the Missouri and lower Ohio Rivers but is now abundant only within the lower Mississippi and Atchafalaya Rivers. Adult...
Fire Ant Response to Management of Native Grass Conservation Buffers
ABSTRACT.-Native grass conservation buffers established for grassland birds require periodic disturbance, but disturbance of vegetation and soil may increase abundance and activity of imported fire ants (Solenopsis sp.). This is a concern because fire...
First Record of the Silver Lamprey, Ichthyomyzon Unicuspis (Petromyzontiformes: Petromyzontidae), from Arkansas
ABSTRACT.-We report the Silver Lamprey (Ichthyomyzon unicupis) from Arkansas for the first time. Fifteen adult I. unicuspis attached to paddlefish (Polyodon spathula) were collected in Apr. 2005 from the White River near the confluence of the Black River,...
Indigenous Unionid Clam Refugia from Zebra Mussels in Michigan Inland Lakes
ABSTRACT.-Zebra mussel presence and lake water calcium concentrations were compared to determine if a calcium concentration threshold exists which might preclude colonization of zebra mussels in Michigan inland lakes. The shallow littoral zones of nine...
Low but Stable Frequency of Xanthic Phenotypes in a Population of the Twoline Pupfish, Cyprinodon Bifasciatus
ABSTRACT.-The discovery and temporal persistence of xanthic phenotypes are reported for an isolated population of the twoline pupfish Cyprinodon bifasciatus, a species endemic to the Cuatro Ciénegas basin, México. During four observations over a 19 mo...
Merope Tuber Newman (Mecoptera: Meropeidae) Collected in Association with Carrion in Greene County, Ohio, USA: An Infrequent Collection of an Elusive Species
ABSTRACT.-Collections of the earwigfly, Merope tuber Newman (Mecoptera: Meropeidae), have been sparse. Little is known about the life history, behavior or ecology of this elusive mecopteran species. Found only in North America, within eastern forests,...
Native Species Establishment in Tallgrass Prairie Plantings
ABSTRACT.-Prairie restorations are increasingly common throughout the central United States. However, we continue to have little information about which planted species become successfully established, or about the factors potentially limiting establishment....
Recovery of Black Cohosh (Actaea Racemosa L.) Following Experimental Harvests
ABSTRACT.-Since European colonization and subsequent commercialization of Appalachian medicinal and edible plants, millions of kilograms of plant material have been extracted from our forests, with little effort to manage these species as natural resources....
Seasonal Effects on Female Fecundity and Male Sperm Availability in a Thermally Stable Temperate Population of Sailfin Mollies (Poecilia Latipinna)
ABSTRACT.-Fish species from temperate climates exhibit seasonal variation in reproduction triggered by abiotic variables such as day length and temperature. The sailfin molly Poecilia latipinna occupies habitats in the southern temperate zone in North...
Seasonal Space Use and Habitat Selection of Adult Raccoons (Procyon Lotor) in a Louisiana Bottomland Hardwood Forest
ABSTRACT.-Raccoon ecology is poorly understood in bottomland hardwood systems, despite the fact that bottomland forests are considered high-quality raccoon habitat. We radio-marked 41 raccoons during 2008-2009 and estimated seasonal space use and habitat...
Size and Development Times of Herbivorous Host and Parasitoid on Distantly Related Foodplants
ABSTRACT.-Important life history traits of animals may parallel those of their food sources, a factor that plays out at multiple trophic levels, potentially influenced by sexual and temporal variation. Here I evaluate the role of three variables in a...
The Effects of Range Expansion on the Population Genetics of White-Winged Doves in Texas
ABSTRACT.-Species that undergo range expansions often exhibit a loss of genetic diversity in populations found at the leading edge of the expansion and show a genetic signal of isolation by distance. We examined the genetic consequences of range expansion...
The Influence of Habitat Quality on the Detection of River Otter (Lontra Canadensis) Latrines near Bridges
ABSTRACT.-Riparian sign surveys near bridge crossings are commonly used to detect the presence of river otters. However, the efficacy of using such surveys for determining river otter presence has not been evaluated relative to habitat conditions. We...
The Whole Tooth and Nothing but the Tooth: A Review of Mammal Teeth: Origin, Evolution, and Diversity
The Whole Tooth and Nothing but the Tooth: A Review of Mammal Teeth: Origin, Evolution, and Diversity, Peter S. Ungar, Johns Hopkins University Press, Baltimore, Maryland. $95.00, 304 pp., ISBN 978-0-8018-9668-2. 2010.Teeth have long fascinated members...
Variation in Plant Distributions, Plant Traits and Disease Levels across a Woodland/Grassland Ecotone
ABSTRACT.-The ability of species to establish and persist in multiple habitats is of increasing importance given ecotone shifts following climate change. We examined a sedge (Carex blanda) that primarily occurs in woodlands in Kansas but is reported...