The American Midland Naturalist articles from January 2000

The American Midland Naturalist archives from January 2000

A Review of Ecological Determinants of Territoriality within Vertebrate Species.
January 1, 2000... CHRISTINE R. MAHER [1] ABSTRACT.--We reviewed papers that compared intraspecific variation in territoriality vs. alternative forms of spatial or behavioral organization with three goals: (1) to discover which ecological variables act as...

Passage Rates and Timing of Bird Migration in Montana.
January 1, 2000... ABSTRACT.--Rates and timing of bird passage in the proposed Norris Hill Wind Resource Area (NHWRA) and vicinity in southwestern Montana were investigated using two marine surveillance radars between August 1995 and August 1996. The scanning...

Bird Mortality Associated with Wind Turbines at the Buffalo Ridge Wind Resource Area, Minnesota.
January 1, 2000... ROBERT G. OSBORN [1] ABSTRACT.--Recent technological advances have made wind power a viable source of alternative energy production and the number of windplant facilities has increased in the United States. Construction was completed on...

Muskrat (Ondatra zibethicus) Disturbance to Vegetation and Potential Net Nitrogen Mineralization and Nitrification Rates in a Freshwater Tidal Marsh.
January 1, 2000... LISA M. CONNORS [1] ABSTRACT.--The muskrat (Ondatra zibethicus) is a wetland mammal whose disturbance activities include grazing, burrowing and lodge construction. We evaluated the effects of these disturbances on plant biomass, species...

Home Range Use by Swamp Rabbits (Sylvilagus aquaticus) in a Frequently Inundated Bottomland Forest.
January 1, 2000... PATRICK A. ZOLLNER [1] WINSTON P. SMITH [2] LEONARD A. BRENNAN [3] ABSTRACT.--Home range size of six swamp rabbits in south-central Arkansas was estimated by radio-telemetry from February 1991 through March 1992. The average...

Terrestrial Activity, Abundance and Species Richness of Amphibians in Managed Forests in South Carolina.
January 1, 2000... HUGH G. HANLIN [1] ABSTRACT.--We determined the relative abundance, days of surface activity and indices of species diversity, evenness and richness for amphibians inhabiting three differently managed forests surrounding a Carolina bay...

Reproductive Behavior and Spawning Microhabitat of the Flagfin Shiner Pteronotropis signipinnis.
January 1, 2000... BRETT ALBANESE [1] ABSTRACT. -- The reproductive behavior and spawning microhabitat of the flagfin shiner, Pteronotropis signipinnis, was described from aquarium observations, instream observations and microhabitat specific seining...

Historical Changes in the Forests of the Luce District of the Upper Peninsula of Michigan.
January 1, 2000... KURT S. PREGITZER [1] ABSTRACT.--General Land Office (GLO) survey notes (1840-1856), current land cover generated from Landsat TM Imagery (1991) and the Forest Inventory and Analysis plots (1991-1992, US Forest Service) were used to...

Overstory Composition and Stand Structure Influence Herbaceous Plant Diversity in the Mixed Aspen Forest of Northern Minnesota.
January 1, 2000... ABSTRACT.--The relationship of herbaceous plant diversity to overstory composition and stand structure in the mixed aspen forest of northern Minnesota was investigated on 23 study sites that contained aspen in monoculture or in mixture with...

Colonization of a Volcanic Mudflow by an Upper Montane Coniferous Forest at Lassen Volcanic National Park, California.
January 1, 2000... JOSEPH D. WHITE [1] ABSTRACT.--Colonization of a relatively undisturbed 1915 debris flow by an upper montane coniferous forest was examined in Lassen Volcanic National Park in northern California in 1987. Seventy 100-[m.sup.2] circular...

Germination Ecology of a Federally Threatened Endemic Thistle, Cirsium pitcheri, of the Great Lakes.
January 1, 2000... SAMARA I. HAMZE [1] CLAUDIA L. JOLLS [2] ABSTRACT,--Pitcher's thistle (Cirsium pitcheri) is a federally listed monocarpic plant species endemic to the shoreline dunes of Lakes Huron, Michigan and Superior. Individual plants may...

Do Whole Tree Silvic Characters Indicate Hybridization in Red Oak (Quercus Section Lobatae)?
January 1, 2000... PATRICIA T. TOMLINSON [1] ABSTRACT.--The presence of hybridization among coexisting species of Quercus section Lobatae raises questions regarding the selection of mother trees to control seedling quality. Currently, trees are selected as...

Dogwood Anthracnose (Discula destructiva): Effects of and Consequences for Host (Cornus florida) Demography.
January 1, 2000... DAVID E. CARR [1] ABSTRACT.--Dogwood anthracnose is a disease caused by Discula destructiva, a fungus of probable exotic origin that is a serious threat to natural populations of Cornus florida in the eastern United States. This epidemic...

Host Fish Suitability for Glochidia of Ligumia recta.
January 1, 2000... ABSTRACT.--In the early 1900s several hosts were identified for the black sandshell Ligumia recta. Recent attempts to propagate juvenile L. recta with two of the reported hosts (bluegill Lepomis macrochirus and largemouth bass Micropterus...

The Introduction and Dispersal of Centrocestus formosanus (Nishigori, 1924) (Digenea: Heterophyidae) in Mexico: A Review.
January 1, 2000... TOMAS SCHOLZ [1] ABSTRACT.--The taxonomy, distributional history, present occurrence, life cycle, morphology of developmental stages and epizootiology of the heterophyid trematode Centrocestus formosanus (Nishigori, 1924) in Mexico are...

Mate Guarding and Aggression by the Crab Spider Misumena vatia in Relation to Female Reproductive Status and Sex Ratio.
January 1, 2000... DOUGLASS H. MORSE [1] ABSTRACT.--Current theory predicts that males should guard prereproductive females if they will thereby achieve sperm priority and that the propensity of males to guard prereproductive females, and aggression...

Selection on a Sexually Dimorphic Trait in Ecotypes within the Hyalella azteca Species Complex (Amphipoda: Hyalellidae).
January 1, 2000... GARY A. WELLBORN [1] ABSTRACT.--Many amphipods (Crustacea: Amphipoda) exhibit sexual dimorphism in the size of a paired chelate appendage, the gnathopods. As with sexually dimorphic weapons and ornaments in other taxa, little is known of...

The Contribution of Microartbropods to Aboveground Food Webs: A Review and Model of Belowground Transfer in a Coniferous Forest.
January 1, 2000... JOHN M. JOHNSTON [1] ABSTRACT.--Although belowground food webs have received much attention, studies concerning microarthropods in nondetrital food webs are scarce. Because adult oribatid mites often number between...

Eastern Woodrat (Neotoma floridana) Consumption of Northern Bobwhite (Colinus virginianus).
January 1, 2000... ABSTRACT.--The eastern woodrat (Neotoma floridana) is considered a generalist herbivore. Only anecdotal evidence suggests that eastern woodrats eat meat given the opportunity. We conducted trials to test whether the eastern woodrat would...

The Influence of Residency Status on Agonistic Behavior of Male and Female Ozark Zigzag Salamanders Plethodon angusticlavius.
January 1, 2000... ALICIA MATHIS [1] ABSTRACT.--Once territories become established residents often have a high probability of successfully defending their territories against intruders. This advantage often can be explained by intrinsic qualities (e.g.,...

Zebra Mussel [Dreissena polymorpha (Pallas)] Colonization of Rusty Crayfish [Orconectes rusticus (Girard)] in Green Bay, Lake Michigan.
January 1, 2000... JOHN C. BRAZNER [1] ABSTRACT.--In August 1995 six rusty crayfish (Orconectes rusticus) colonized with zebra mussels (Dreissena polymorpha) were captured in small-meshed fyke-nets set as part of a fish sampling effort at Peter's Marsh and...

Disinfectant Effects on Capture Rates of Deer Mice (Peromyscus maniculatus).
January 1, 2000... RUSSELL C. VAN HORN [1] ABSTRACT.--Live-trapping was conducted to determine the influence of trap disinfection on trapping success. Deer mice (Peromyscus maniculatus) on most (83.3%, n = 6) grids were equally likely to be caught in traps...

Shortnose Gar (Lepisosteus platostomus) Foraging on Periodical Cicadas (Magicicada spp.): Territorial Defense of Profitable Pool Positions.
January 1, 2000... ABSTRACT.--Shortnose gar foraged on spent periodical cicadas floating on the surface during a mass coemergence of 13- and 17-y broods. The largest gar in each pool of an observed stream reach was positioned at the upstream pool lip. Ambient...