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The American Midland Naturalist
Articles from Vol. 158, No. 2, October
A Comparison of the Beetle (Coleoptera) Fauna Captured at Two Heights above the Ground in a North American Temperate Deciduous Forest
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ABSTRACT.-We compared the beetle fauna captured in 12 pairs of flight intercept traps suspended at two different heights above the ground (=15 m and 0.5 m) in a temperate deciduous forest in the southeastern United States to better understand how the...
Altered Ecosystem Nitrogen Dynamics as a Consequence of Land Cover Change in Tallgrass Prairie
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ABSTRACT.-In recent decades, substantial areas of North American tallgrass prairie have been lost to the establishment and expansion of woodlands and forests, including those dominated by eastern redcedar (Juniperus virginiana). This shift in dominant...
A Method to Use Ranked Timber Observations to Perform Forest Composition Reconstructions from Land Survey Data
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ABSTRACT.-The goal of this research was to develop a novel method to make use of ranked timber observation descriptions, which have been underutilized in survey reconstruction research. The new method involves assuming that ranking position reflects...
Big Cypress Fox Squirrel (Sciurus Niger Avicennia) Diet, Activity and Habitat Use on a Golf Course in Southwest Florida
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ABSTRACT.-Habitat use, feeding and activity patterns of Big Cypress fox squirrels (Sciurus niger avicennia) were studied in southwest Florida to identify golf course features favorable to fox squirrels. The location, behavior and foods of 30 radio-located...
Does a Population of Cougars Exist in Michigan?
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ABSTRACT.-After analyzing DNA obtained from fecal samples gathered in Michigan, Swanson and Rusz (2006) claimed that 83% of identified scats were from cougars, indicating to them that a population of these large carnivores existed in the state. In this...
Effects of Leaf Litter on Establishment, Growth and Survival of Invasive Plant Seedlings in a Deciduous Forest
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ABSTRACT.-Disturbance often promotes plant invasion. Small disturbances to the forest floor expose bare soil to light which may promote seed germination and establishment. We tested the hypothesis that small disturbances to the litter layer allow invasive...
Effects of Zebra Mussels (Dreissena Polymorpha) on Mobility of Three Native Mollusk Species
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ABSTRACT.-As invaders to North America, zebra mussels (Dreissena polymorpha) have contributed to the decline of benthic species, the mechanisms of which are poorly understood. In this study, we examined effects of D. polymorpha biofouling on locomotion...
Food Habits of Eastern Small-Footed Bats (Myotis Leibii) in New Hampshire
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ABSTRACT.-Published information about the diet of eastern small-footed bats (Myotis leibii) does not exist. Feces of 39 M. leibii captured from May through Sep. in southern New Hampshire contained eight orders of insects, spiders (Araneae), unidentified...
From Bait Shops to the Forest Floor: Earthworm Use and Disposal by Anglers
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ABSTRACT.-Nonindigenous earthworms are causing large and undesirable changes to forests across the U.S. Upper Midwest. Because earthworms have slow rates of natural spread, and because their distribution remains patchy in many areas, it would be possible...
Genetic Diversity of the Illinois-Threatened Agalinis Auriculata (Orobanchaceae) and Two Common Congeners
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ABSTRACT.-Agalinis auriculata (Orobanchaceae) is a state-listed species in Illinois and is rare throughout its range in the midwestern United States. In recent years, research has been conducted on the biology of this hemiparasitic plant in order to...
Getting the Drift: Examining the Effects of Timing, Trap Type and Taxon on Herpetofaunal Drift Fence Surveys
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ABSTRACT.-The evaluation of appropriate sampling methodologies is critical for accurately determining the distribution and status of herpetofaunal populations. We report the results of a year-long drift fence study, using multiple trap types (large pitfall...
Life History Variation in the Yazoo Shiner (Notropis Rafinesquei) in Three Mississippi Streams
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ABSTRACT.-We investigated the life history and demographics of Notropis rafinesquei (Cyprinidae) in three streams in north Mississippi, USA, over 2 y. Size at maturity (22.5-29.3 mm SL) and the timing and duration of the reproductive period (Apr.-Aug.)...
Metapopulation Dynamics of Bobolinks Occupying Agricultural Grasslands in the Midwestern United States
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ABSTRACT.-A metapopulation is any set of populations that are patchily distributed and potentially connected by dispersal. This broad definition includes classical, mainland-island, source-sink, patchy and non-equilibrium metapopulations. To ensure long-term...
Response of Preble's Meadow Jumping Mouse (Zapus Hudsonius Preblei) to Resource Supplementation
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ABSTRACT.-Conservation plans for the Preble's meadow jumping mouse (Zapus hudsonius preblei), a threatened subspecies, commonly include habitat restoration. Our objective was to determine if Z. h. preblei would detect and use supplemental food and cover...
Responses of Old-Field Mice (Peromyscus Polionotus) to Consecutive Days of Live Trapping
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ABSTRACT.-We investigated causes of body mass loss associated with consecutive days of live trapping of old-field mice (Peromyscus polionotus) on four small mammal trapping grids in central Florida USA from Mar. 2003 to Dec. 2004. Body mass of P. polionotus...
Summer Roosting by Adult Male Seminole Bats in the Ouachita Mountains, Arkansas
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ABSTRACT.-We used radiotelemetry to locate 51 diurnal roosts for 17 male Seminole bats (Lasiurus seminolus) during late spring and early summer, 2000-2005. We quantified characteristics of roost trees and sites surrounding roosts and compared those measurements...
Survey of Selected Pathogens and Blood Parameters of Northern Yellowstone Elk: Wolf Sanitation Effect Implications
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ABSTRACT.-The restoration or conservation of predators could reduce seroprevalences of certain diseases in prey if predation selectively removes animals exhibiting clinical signs. We assessed disease seroprevalences and blood parameters of 115 adult...
The Relationship between Prey Capture and Characteristics of the Carnivorous Pitcher Plant, Sarracenia Alata Wood
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ABSTRACT.-We examined the relationship between pitcher characteristics (sugar concentration in nectar, percentage of red coloration and three indices of size) and prey capture in three populations of the carnivorous plant, Sarracenia alata Wood. The...
Vegetative and Invertebrate Community Characteristics of Conservation Reserve Program Fields Relative to Gamebirds in Western Kansas
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ABSTRACT.-We examined vegetation and invertebrate characteristics, including insect biomass, insect-prey, six Families and seven Orders in four varieties of Conservation Reserve Program (CP10, improved CP10, CP2 and CP25) and wheat fields in western...
Vole Population Dynamics: Influence of Weather Extremes on Stoppage of Population Growth
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ABSTRACT.-Effects of 74 episodes of extreme weather on stoppage of population growth and resulting amplitudes of annual population fluctuation of 39 fluctuations of Microtus ochrogaster and 20 fluctuations of M. pennsylvanicus were studied over a 25...
Winter Home-Range Characteristics of American Marten (Martes Americana) in Northern Wisconsin
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ABSTRACT.-We estimated home-range size for American marten (Martes americana) in northern Wisconsin during the winter months of 2001-2004, and compared the proportion of cover-type selection categories (highly used, neutral and avoided) among home-ranges...
