Life Sciences Commons^™

Bat Research, Patricia W. Freeman

University of Nebraska State Museum: Mammalogy Papers

In our research, we capture bats with a net 50 to 200 feet long set up between poles. Usually we net over water to capture bats as they drink or forage. Sometimes we rig the net so it can be moved up and down like a sail between two secured lines or poles so we can sample what flies high among the trees. Netting helps us to discover where each species occurs in the state [of Nebraska], and we also can determine an individual's age, sex, reproductive condition, and diet.

Nebraska's Flying Mammals, Patricia W. Freeman, Kenneth N. Geluso, J. Scott Altenbach

University of Nebraska State Museum: Mammalogy Papers

They flit around at dusk in crazy patterns. They fly around street lights and dive at rocks thrown in the air. They have high-pitched squeaks and turn up in unexpected places. They have strange, little faces and bizarre ears. They have soft fur and a thin rubbery membrane across their long fingers. They are bats, Nebraska's only flying mammals. Bats are mysterious. Is it because they come out at night and we come out in the daytime? Maybe it is because we associate flying with birds, not mammals. Bats are dark and foreboding, not brightly colored. At first, these mysterious …

Elephant Days And Nights: Ten Years With The Indian Elephant, Robert H.I. Dale

Scholarship and Professional Work - LAS

Book review for the following title:

Elephant Days and Nights. By Raman Sukumar (George B. Schaller, foreword), Oxford University Press, 1996, 200 pages.

Systematics Of The Freshwater Amphipod Genus Crangonyx (Crangonyctidae) In North America, Jun Zhang

Biological Sciences Theses & Dissertations

The systematics of the amphipod genus Crangonyx of North America (north of Mexico) is revised, based on available collections (ca. 2240) and literature dealing with the genus. A grand total of 42 North America species of Crangonyx are recognized in the present study, 24 of them new to science. All species are described or redescribed and figured, utilizing external morphological features. Keys to both species groups and individual species are given. Phylogenetic trees are built using computer programs (PAUP, Hennig86, MacClade) based on 26 characters. Wagner parsimony produced 18 parsimonious trees and Fitch parsimony produced 45 trees. The consensus tree …

The Annual Reproductive Cycle Of Oryzomys Palustris In A Virginia Tidal Marsh, Erin A. Dreelin

Biological Sciences Theses & Dissertations

The objectives of my study were to determine when the marsh rice rat (Oryzomys palustris) begins and ends reproduction during the year, if there are seasonal changes in litter size, and the weight at which sexual maturity is reached. Monthly samples of rice rats were trapped from May 1995 to May 1996 in Northampton County, Virginia. Rice rats were trapped with Fitch live traps, euthanized in the field, and brought to the lab for necropsy. Data from two other studies of rice rats in Northampton County were also examined. Potential breeders did not reproduce with equal intensity throughout the …

Ecological Relationships Between The Marsh Rice Rat (Oryzomys Palustris) And The Meadow Vole (Microtus Pennsylvanicus) In Two Virginia Tidal Marshes, Christopher P. Bloch

Biological Sciences Theses & Dissertations

Small mammals were trapped for 23 months on two live trap grids in tidal marshes in Northampton County, on the Eastern Shore of Virginia, to examine ecological relationships between the marsh rice rat (Oryzomys palustris) and the meadow vole (Microtus pennsylvanicus). Population density, survival rates, capture probability, recruitment, residence time, and home range size were calculated for each species. Patterns of reproductive activity and fluctuations in mean weight were also observed.

There were considerable differences in population dynamics between the two sites. At Grid 2, where vegetative cover was more abundant, population densities of rice rats and meadow voles …

Twenty-Five Years Of The Shadle Fellowship, Hugh H. Genoways, Patricia W. Freeman

University of Nebraska State Museum: Mammalogy Papers

Over the past 25 years, Albert R. and Alma Shadle Fellowships have been awarded to 26 young mammalogists. Of the 26 Shadle Fellows, 20 are men and six are women. Twenty-five of the 26 Fellows remain active in science and are still members of the American Society of Mammalogists. Shadle Fellows have been selected from 15 academic institutions and 17 professors have served as academic advisors for awardees. Shadle Fellows have already made significant contributions to the American Society of Mammalogists and to their home institutions. Awardees have published an average of 3.2 scientific articles per year per Fellow since …

Nebraska Bird Review (June 1997) 65(2), Whole Issue

Nebraska Bird Review

A George Miksch Sutton Bibliography … 46

Birds of the Lake Ogallala State Recreation Area … 59

NOU Fall Count 1996; NAMC Count in Two Counties 10 May 1997 … 67

Table for NOU Fall Count and NAMC Spring Count … 68

Notes on Bird Sightings in Nebraska … 73

Spring Field Report, March-May 1997 … 74

Observers for Spring Field Report … 99

Red-necked Grebe at Sutherland Reservoir … 99

Birds Of The Lake Ogallala State Recreation Area, Timothy M. Bergin

Nebraska Bird Review

The Lake Ogallala State Recreation Area (LOSRA) is located immediately downstream from Lake McConaughy, which was formed by the construction of Kingsley Dam across the North Platte River, and includes riparian woodland, shrubland, grassland, marsh, sandbeach, rivers, ponds, and lakes. Birds were surveyed in LOSRA from 1988 to 1992 and censused in the southwest campground of LOSRA from late May to mid-July during the 1991 and 1992 breeding seasons. Seventy-five bird species (56 terrestrial and 19 aquatic) were observed, including several hybridizing species. Thirty-one terrestrial species inhabited the southwest campground, but only 60% of these were counted during biweekly censuses; …

Red-Necked Grebe At Sutherland Reservoir, Stephen J. Dinsmore, Joel G. Jorgensen

Nebraska Bird Review

On 26 September 1996, we saw and photographed a Red-necked Grebe at Sutherland Reservoir in Lincoln County. When we arrived at the northwest end of the lake, Dinsmore noticed a slightly smaller, bigger-headed grebe resting with a couple of Western Grebes. Both of us immediately recognized the bird as a Red-necked grebe. We studied it at close range from 2:43-3:17 p.m. CST. Compared to a Western Grebe, in addition to the size differences mentioned above, this bird was shorter-necked. The mantle was dark gray with some brown flecking. The flanks were grayish. The foreneck was very buffy, almost reddish in …

A George Miksch Sutton Bibliography, Paul A. Johnsgard

Nebraska Bird Review

Members of the Nebraska ornithologists' Union often do not realize that the reason a George Miksch Sutton sketch of a burrowing owl is used as the logo of our organization, and also appears on the cover of every issue of The Nebraska Bird Review, is because Dr. Sutton was a native Nebraskan. He was born in Bethany (now part of northeastern Lincoln) in 1898, and several years of his childhood were spent there before the family left the state permanently. In spite of Dr. Sutton's great influence on American ornithology and bird art, no bibliography of his writings has …

Masthead From Nebraska Bird Review (June 1997) 65(2)

Nebraska Bird Review

The Nebraska Bird Review is pUblished quarterly in Marc~ June, September, and December by the Nebraska Ornithologists1 Union, Inc., as its official journal, and is sent to members not in arrears for dues. Annual sUbscription rates (on a calendar-ye~ basis only): $12.50 in the united states, $15.00 in Canada and Mexico, and $17.50 for all other countries, payable in advance. Single copies are $4.00 each, postpaid, in the united states, and $5.00 elsewhere. Send orders for back issues to Mary H. Pritchard, NOU Librarian, University of Nebraska State Museum, Lincoln, NE 68588-0514.

Nou Fall Count 1996; Namc Count In Two Counties 10 May 1997

Nebraska Bird Review

The NOU count during Fall Field Days 27-28 September 1996 was centered at the Nebraska National Forest (NNF) , which is mostly in Thomas County, and also included Thomas outside the forest and three other counties: Cherry, Brown, and Blaine (see Table 1). The total number of species was 116 compared to 103 for the same area about 10 days later in 1995. Twelve species seen in 1995 were absent in 1996, and 22 species seen in 1996 were absent in 1995.

North American Migration Counts (NAMC) for Boone and Sarpy Counties on 10 May 1997 are included in Table …

Spring Field Report, March-May 1997, W. Ross Silcock

Nebraska Bird Review

First a correction: in the Fall Seasonal Report (NBR 63:101) the account on Whooping Crane listed 2 reports 25 November; these should have been 25 October.

This report includes observations, designated (B), reported to the Nebraska Birdline (402-292-5325), operated by Loren and Babs Padelford. While these are anonymous submissions, many are reported to us subsequently by the original observers; those which are not but are significant but unsubstantiated, are indicated herein as such by a phrase like "no details submitted". We have also used this phrase for other unsubstantiated reports herein. Hopefully, observers involved will send us a few …

"Notes On Nebraska Bird Sightings," From Nebraska Bird Review (June 1997) 65(2)., John Dinan

Nebraska Bird Review

Lapland Longspurs Road Kill. The 10 April 1997 snowstorm had some devastating effects on Lapland Longspurs in northeast Nebraska. Tom Welstead, Wildlife Biologist in Norfolk, reported counting 103 dead birds in 0.6 miles on Highway 121 south of Battle Creek. Other unconfirmed reports of numerous dead birds on the roads were suspected to be longspurs also. While the extent of the kill was unknown, it may have been widespread. Tom also reported seeing dead birds in the parking lot of a Quick Shop in Burwell days later, apparently deposited by falling from the grilles of vehicles after they had …

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.

Density, Distribution, And Habitat Of Flammulated Owls In Idaho, Craig Groves, Terry Frederick, Glenn Frederick, Eric Atkinson, Melonie Atkinson, Jay Shepherd, Gregg Servheen

Great Basin Naturalist

From 1990 to 1992 we surveyed for Flammulated Owls (Otus flammeolus) in 3 areas in Idaho: Salmon National Forest (SNF), Payette National Forest and adjacent Hells Canyon National Recreation Area (PNF-HCNRA), and Nez Perce National Forest (NPNF). We also collected and summarized information on all historic and modern records of Flammulated Owls in Idaho. Flammulated Owls were detected on 65% of 68 routes (2–16 km in length) surveyed at densities ranging from 0.04 to 1.25 singing males/40 ha. Owls were detected on survey routes as early as 10 May and as late as 23 July. Mean percent canopy …

Diplostomiasis In Native And Introduced Fishes From Yellowstone Lake, Wyoming, Victor H. Inchausty, Michael Foutz, Richard A. Heckmann, Claudete Ruas, Paulo Ruas

Great Basin Naturalist

Totals of 101 native Yellowstone cutthroat (Oncorhynchus clarki bouvieri), 27 introduced lake trout (Salvelinus namaycush), and 40 introduced longnose sucker (Catostomus catostomus) from Yellowstone Lake, Wyoming, USA, were examined for eye flukes. Metacercariae of the trematode fluke Diplostomum were in vitreous humor and/or lens of 94% of Yellowstone cutthroat trout, 92% of lake trout, and 78% of longnose sucker. Longnose sucker had 7% prevalence of infection in both lens and vitreous humor of metacercariae, while Yellowstone cutthroat trout had 3% and lake trout 8%. Diplostomum spathaceum was in lens tissue of 5% of infected …

Habitat Selection, Population Density, And Home Range Of The Elf Owl, Micrathene Whitneyl, At Santa Ana National Wildlife Refuge, Texas, Christopher Michael Gamel

Theses and Dissertations - UTB/UTPA

The Elf Owl, Micrathene whitneyi, is a regular summer resident of the southwestern United States. My objectives were to collect information concerning habitat selection, home range size, and population density of M. w. idonea, the subspecies occurring in the Lower Rio Grande Valley of Texas. Nocturnal surveys indicated greater use of chaparral habitat (92%) compared to riparian woodlands (8%). Utilized habitat was characterized by highest foliage density at 2.5-3.0 m, with a partial canopy at 3.8 $\pm$ 0.36 m and a semi-open understory. Home range size ranged from 0.24 to 2.6 ha, with a mean of 1.05 $\pm$ 0.33 ha. …

Habitat Use And Activities Of The Piping Plover, Charadrius Melodus, Wintering On South Padre Island, Texas, Humberto Garza Jr.

Theses and Dissertations - UTB/UTPA

The Piping Plover, Charadrius melodus, is endangered in its breeding sites and threatened in its wintering sites. This migratory shorebird spends 3 to 4 months on northern U.S. and southern Canadian breeding sites and the remainder of the year in Gulf of Mexico, Caribbean, and southern U.S. wintering sites. Up to 2.4% of the estimated Piping Plover population remains for the 9 to 10 month non-breeding season on South Padre Island (S.P.I.). During the non-breeding season, I conducted censuses at 15 sites in the southern portion of South Padre Island to determine Piping Plover habitat preferences. Piping Plovers prefer bay …

Aquatic Macroinvertebrates Of Rio Grande Delta Ponds, Anna Maria Navarro

Theses and Dissertations - UTB/UTPA

The purpose of this study was to identify aquatic macroinvertebrates living in the vegetated margins of local ponds, to determine their relative abundances, and to construct a rapid bioassessment model. I collected macroinvertebrates seasonally from seven ponds in the Lower Rio Grande Valley. Collection sites included: Moore Airfield, Santa Ana National Wildlife Refuge, and Olmito Fish Hatchery. Twenty-eight samples were sampled and preserved at the University of Texas-Pan American. Seventy-six taxa were identified and were stored as a reference collection. Cluster analysis of the taxa and their relative abundances showed three distinct geographic patterns or regions. These patterns were verified …

Factors Influencing Germination Of Six Wetland Cyperaceae, John L. Larson

Field Station Bulletins

In order to determine factors which may affect the differential seed germination of six members of the Cyperaceae which occur together in newly revegetated sedge meadow, seeds were tested for germ inability at three storage conditions. Seeds were also germinated at two alternating temperature regimes, 21/25° and 25/32°C. Germination of dry stored Carex hystericina and C. vulpinoidea was greater at the higher alternating temperature of 25/32°C while Scirpus atrovirens and S. cyperinus dry stored seed had a similar germination response at both alternating temperatures. Most of the moist-cool stored (stratified) seeds of the six species germinated well regardless of temperature. …

The Asian Elephant: Ecology And Management, Robert H.I. Dale

Scholarship and Professional Work - LAS

Book review for the following title:

The Asian Elephant: Ecology and Management. By Raman Sukumar, Cambridge University Press, 1993, 282 pages. $34.95 hardcover

Wisconsin Freshwater Isopods (Asellidae), Joan Jass, Barbara Klausmeier

Field Station Bulletins

Four species of freshwater isopods in the family Asellidae were collected from Wisconsin. There is very little published information on the asellid isopods of Wisconsin. In this paper we provide descriptions of the size range, habitat characteristics, distribution, and life history traits of Wisconsin asellids based on data from our field work and information from the literature. We include a provisional key for identification of the male asellids which have been collected from Wisconsin.

Receptor Kinase Gene Expression In Olfactory Receptor Neurons, Michael Moore

Honors Theses

No abstract provided.

Ecology Of The Early Life History Of The Caribbean Spiny Lobster, Panulirus Argus: Recruitment, Predation, And Habitat Requirements, Charles A. Acosta

Biological Sciences Theses & Dissertations

Recruitment variability of the early life history stages of marine benthic organisms can have profound consequences on population dynamics. I studied factors affecting recruitment success of postlarvae and early juveniles of the Caribbean spiny lobster. I examined patterns in postlarval supply, investigated wind forcing as a potential transport mechanism for recruiting postlarvae, and quantified predation on postlarvae in south Florida, USA. In an eight-year time series, spiny lobster postlarval supply occurred year-round between the new and first quarter lunar phases. The major annual peak occurred around March corresponding to spawning activity ten months earlier, and a smaller non-seasonal peak occurred …

Natural Variability Of Vegetation, Soils, And Physiography In The Bristlecone Pine Forest Of The Rocky Mountains, Brigitte M. Ranne, William L. Baker, Tom Andrews, Michael G. Ryan

Great Basin Naturalist

Pinus aristata Engelm. forest vegetation in Colorado was studied to determine vegetation composition and the relationship between vegetation and environment. Species percent cover, tree size class, and environmental variables were recorded for 49 plots. Previously collected data for 4 plots from New Mexico were included. Environmental variables included latitude, longitude, elevation, slope, aspect, topographic position, parent material, percent rock cover, mean rock size, litter depth, estimated plot age class, and evidence of anthropogenic disturbance. Soils were analyzed for texture, depth, and percent carbon and nitrogen. Pinus aristata foliage was analyzed for percent nitrogen and phosphorus. Direct and indirect gradient analyses …

Survey Of Bald And Golden Eagles In Nebraska

Nebraska Bird Review

John Dinan, Nongame Bird Program Manager, Nebraska Game and Parks Commission, 2200 N. 33rd st., P.O. Box 30370, Lincoln, NE 68503-0370 (phone: 402/471-0641; Fax: 402/471-5528), supplied the results of the 1997 (January 1-15) Bald and Golden Eagle surveys, with six organizations and twelve individuals participating.

Conditions for 1997 survey: Temperatures ranged from 8 to 35°F. The Niobrara River had 50-100% ice cover except the upper portion, which was mostly open. The unchannelized portion of the Missouri River was 90-100% ice-covered, but the channelized portion was open and was carrying floating ice below Tekamah. The Platte River had 50-90% ice …

The Nebraska Ornithologists' Union, Inc. Treasurer's Annual Report 12/31/96, Elizabeth Grenon

Nebraska Bird Review

Treasurer's Annual Report 12/31/96

The Nebraska Ornithologists' Union Executive Committee Highlights Of Meeting, 28 September 1996, Robin Harding

Nebraska Bird Review

The meeting was held at the Nebraska National Forest near Halsey during Fall Field Days.

Betty Grenon, Treasurer, indicated that Dr. and Mrs. R. G. Cortelyou gave many items to N.O.U. when they moved to Mercer Island, WA. The funds from contributions for these items will be used to establish a scholarship fund to recruit new members. The scholarship recipient will get an all-expenses-paid trip to an N.O.U. meeting. Details will be worked out later.

Neal Ratzlaff, President, said that N.O.U. has 501 C3 status and is recognized by the federal government as a nonprofit organization.

The status of the …