The American Midland Naturalist

Articles from Vol. 164, No. 1, July

A Comparison of Vegetation and Seed Bank Community Structure in a Sand Prairie in Illinois, U.S.A
ABSTRACT.Knowledge of both the vegetation and soil seed bank of a community is necessary to understand species storage and regeneration potential. Species composition and abundance were assessed in Thomson-Fulton Sand Prairie in northwestern Illinois,...
Assessing the Distribution of Eastern Moles (Scalopus Aquaticus) in Canada in Relation to Loam Soils and Forest Cover
ABSTRACT.We assessed the distribution of Eastern moles Scalopus aquaticus in relation to loam soils under the hypothesis that the species' Canadian distribution is limited by soil type. We also explore the relationship between mole occurrence and the...
Avian Seed Dispersal on Virginia Barrier Islands: Potential Influence on Vegetation Community Structure and Patch Dynamics
ABSTRACT.Quantification of seed arrival as an ecological flux may improve understanding of patch dynamics and variations in community structure across the landscape. Microsites favorable for germination are continually being created and destroyed in...
Bird Nesting in Chickasaw Plum Related to Age of Plum in Oklahoma
ABSTRACT.We described passerine nesting in Chickasaw plum (Prunus angustifolia) as related to plum age in north-central Oklahoma during the 2007 and 2008 nesting seasons to better understand the role of plum in bird ecology. We measured properties of...
Development of Equations Predictive of Size and Condition for Black Bears in Rocky Mountain National Park, Colorado
ABSTRACT.Knowledge of body condition is important in predicting health and performance of large mammal populations. Therefore, we assessed body condition in black bears (Ursus americanus) in Rocky Mountain National Park (RMNP), Colorado, using body mass...
Display of Animal Location Data and Kernel Home Range Contours in Google Earth Pro
ABSTRACT.This paper presents step-by-step instructions for taking an animal location data set, creating a set of kernel home range utilization distribution contours, and formatting and manipulating those contour files for display in Google Earth. The...
Eastern Spotted Skunk (Spilogale Putorius) Survival and Cause-Specific Mortality in the Ouachita Mountains, Arkansas
ABSTRACT.Survival and cause-specific mortality of eastern spotted skunks (Spilogale putorius) was assessed for a radio-monitored population in the Ouachita Mountains of westcentral Arkansas, USA. We monitored 33 eastern spotted skunks over a 23 mo period....
Ecological and Behavioral Methods for the Study of Bats
Ecological and Behavioral Methods for the Study of Bats, 2nd Ed., Kunz, Thomas H. and Stuart Parsons (Eds.), Johns Hopkins Press, 2009, Baltimore, Maryland. 920 p. ISBN 0-8018-9147-7As stated in the book jacket write-up, "First published in 1988, Ecological...
Expanding American Lotus and Dissolved Oxygen Concentrations of a Shallow Lake
ABSTRACT.Lakes and reservoirs often experience sudden increases in macrophyte biomass. These changes have the potential to alter the abiotic environment in ways that affect other species. The American lotus (Nelumbo lutea) is expanding its distribution...
Habitat and Host Tree Selection by Wintering Yellow-Bellied Sapsuckers in East Texas
ABSTRACT.Yellow-bellied Sapsucker (Sphyrapicus varius) foraging ecology has long been a focus of study, primarily due to their sap-foraging behavior throughout the year and speculation on how sapsuckers subsist by foraging on dormant host trees during...
Habitat Use of the Watercress Darter (Etheostoma Nuchale): An Endangered Fish in an Urban Landscape
ABSTRACT.The federally endangered watercress darter (Etheostoma nuchale) is restricted to only five springs within the greater Birmingham (AL) metropolitan area. Restricted range, subpopulation isolation and threats from the urban landscape are the major...
Home Range and Survival of the Ozark Pocket Gopher (Geomys Bursarius Ozarkensis) in Arkansas
ABSTRACT.The Ozark pocket gopher (Geomys bursarius ozarkensis) has recently been described as a new subspecies of the plains pocket gopher (G. bursarius) inhabiting north-central Arkansas and is considered a "species of greatest conservation need" in...
Influence of Surface Area, Water Level and Adjacent Vegetation on Bat Use of Artificial Water Sources
ABSTRACT.Reliable natural water sources often are unavailable for bats in semi-arid regions such as the Texas Panhandle. Metal stock tanks commonly are used to supply water to livestock and are used by bats as a water source. It is unknown how surface...
Using Track-Plate Footprints in Fisher Mark Recapture Population Estimation
ABSTRACT.Obtaining accurate estimates of fisher (Martes pennanti) population abundance is challenging to resource management agencies given the large home ranges and low densities at which fisher occur. Current methods for estimating population abundance...
Variation in Freshwater Mussel Shell Sculpture and Shape along a River Gradient
ABSTRACT.It has been hypothesized that variation in shell shape and sculpture in freshwater mussels from streams is related to hydrologic variability. Using quantitative sampling, we found smooth-shelled species were more common in upstream portions...
Vertebrate Richness and Biogeography in the Big Thicket of Texas
ABSTRACT.The Big Thicket of Texas has been described as rich in species and a "crossroads:" a place where organisms from many different regions meet. We examine the species richness and regional affiliations of Big Thicket vertebrates. We found that...
Wildlife Conservation Sunflower Plots and Croplands as Fall Habitat for Migratory Birds
ABSTRACT.Agricultural fields are often overlooked as post-breeding and migratory bird habitat, even though many species use row-crop fields in the northern Great Plains. We monitored bird use, crop and non-crop vegetation characteristics and abundance,...