Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Animal Sciences

1996

Institution
Keyword
Publication
Publication Type
File Type

Articles 1 - 30 of 505

Full-Text Articles in Life Sciences

Eumops Perotis, Troy L. Best, W. Mark Kiser, Patricia W. Freeman Dec 1996

Eumops Perotis, Troy L. Best, W. Mark Kiser, Patricia W. Freeman

University of Nebraska State Museum: Mammalogy Papers

Eumops perotis is the largest bat in the United States. The greater mastiff bat resembles other North American free-tailed bats, but is distinguished from other molossids by its large size and lack of long guard hairs on the rump (Barbour and Davis, 1969). E. perotis has the thinnest dentary of any Eumops (Freeman, 1981a).In the United States, E. perotis can be separated from E. underwoodi by its larger size (forearm is 73-83 mm in E. perotis and 65-77 mm in E. underwoodi), darker color, and lack of long guard hairs on the rump. The ears are longer (36-47 mm …


External Morphology Of The Chorion Of The Annual Fishes Cynolebias (Cyprinodontiformes: Rivulidae), Marcelo Loureiro, Rafael O. De Sá Dec 1996

External Morphology Of The Chorion Of The Annual Fishes Cynolebias (Cyprinodontiformes: Rivulidae), Marcelo Loureiro, Rafael O. De Sá

Biology Faculty Publications

Members of the family Rivulidae (killifishes) inhabit temporary bodies of freshwater in South and Central America (one species is also found in North America). The most remarkable characteristic of the family Rivulidae is that species have an annual life cycle with a drought-resistant egg during the dry season. Parenti's (1981) analysis of the order Cyprinodontiformes considered a single genus, Cynolebias, whereas Cos- ta's (1990) phylogenetic analysis of the family Rivulidae separates Cynolebias from Cynopoecilus. One of Costa's synapomorphies to separate Cynopoecilus is the unique structure of their egg's chorion, which is shared with Leptolebias and Campellolebias.


Fishery Independent Standing Stock Surveys Of Oyster Populations In Virginia 1996, Roger L. Mann, James Wesson Dec 1996

Fishery Independent Standing Stock Surveys Of Oyster Populations In Virginia 1996, Roger L. Mann, James Wesson

Reports

Extensive description of the Virginia oyster resource and history of its utilization has been given by Haven, Hargis and Kendall (1981), and more recently reviewed by Hargis and Haven (1988). These contributions, among many others, describe a state of continuing decline. The James River, Virginia has served as the focal point for the Virginia oyster industry for over a century, being the source of the majority of seed oysters that were transplanted for grow-out to locations within the Virginia portion of the Chesapeake Bay and much further afield in the Middle Atlantic states (Haven et al, 1981 ). The Rappahannock …


Chemical Communication In House Mice (Mus Musculus): Can They Recognize Gender From The Anogenital, Harderian Gland Or Mouth/Nose Odor?, Dawn Michele Andrews Dec 1996

Chemical Communication In House Mice (Mus Musculus): Can They Recognize Gender From The Anogenital, Harderian Gland Or Mouth/Nose Odor?, Dawn Michele Andrews

Dissertations and Theses

Identifying the sensory systems animals employ to communicate chemically and the function of the chemical signals facilitates further understanding of chemical communication. Increased knowledge of how animals use the olfactory and vomeronasal systems in order to interpret the meaning of body odors will aid in developing a more detailed organization of chemosensory pathways. The message that each body odor contains can change from species to species.

The purpose of this thesis was to study three previously untested body odors in house mice (M. musculus) for their role in gender recognition of conspecifics. These odors are the anogenital (feces, …


Whooping Crane Sightings, August-December 1996, Steven Anschutz Dec 1996

Whooping Crane Sightings, August-December 1996, Steven Anschutz

Nebraska Bird Review

Based on observations of the breeding grounds during the summer of 1996, about 170 Whooping Cranes were expected to arrive at the Aransas National Wildlife Refuge in Texas during the fall. The first arrival (two birds) was confirmed on 23 October. A total of 158 birds (143 adults/subadults and 15 young) were wintering at Aransas 1996-97. As of 16 January 1997, six adults and eight subadults, of the number anticipated, had not arrived at the refuge.

The first recorded dates for confirmed observations of migrating Whooping Cranes were 2 August in Canada and 22 September in the United States. The …


1995 (Seventh) Report Of The Nou Records Committee, Joseph A. Gubanyi Dec 1996

1995 (Seventh) Report Of The Nou Records Committee, Joseph A. Gubanyi

Nebraska Bird Review

The functions and methods of the NOU Records Committee are described in its bylaws (NOU Records Committee 1986). The committee's purpose is to provide a procedure for documenting unusual bird sightings and to establish a list of all documented birds for Nebraska. The official list of birds was last published in 1988 (NOU Records Committee 1988), and has been appended five times (Mollhoff 1989, Grenon 1990, 1991, Gubanyi 1996a, 1996b).

This report includes accounts submitted during the calendar year 1995 and covering records with accession numbers 396-450, 480-490. All records mentioned here will be available to interested persons at the …


Index From Nebraska Bird Review (December 1996) Dec 1996

Index From Nebraska Bird Review (December 1996)

Nebraska Bird Review

INDEX TO VOLUME 64

Alexander, George 25. 33. 34 Irene 25, 33, 34

Alfred, Norris 34 Allen, Betty 25, 82 Reid 25

Another Common Crane in Nebraska
with a Summary of North
American Records 80

....

Yellowlegs, Greater 50, 85, 94, 113
Lesser 50, 85, 94, 113

Yellowthroat, Common 63, 88, 101, 123

Zwink, Duane 24


Masthead And Table Of Contents From Nebraska Bird Review (December 1996) 64(4) Dec 1996

Masthead And Table Of Contents From Nebraska Bird Review (December 1996) 64(4)

Nebraska Bird Review

Table of Contents

Fall Field Report, August-November 1996 ... 106

Observers for Fall Field Report ... 129

Whooping Crane Sightings, August-December 1996 ... 129

Notes on Bird Sightings in Nebraska ... 130

1995 (Seventh) Report of the NOU Records Committee ... 132

Book Review ... 138

Index to Volume 64 (compiled by R. G. Cortelyou) ... 139


"Book Review," From Nebraska Bird Review (December 1996) 64(4), Hazel Scheiber Dec 1996

"Book Review," From Nebraska Bird Review (December 1996) 64(4), Hazel Scheiber

Nebraska Bird Review

This book contains 18 essays based on observations Miss Sherman made on a farm in northeastern Iowa six miles west of the Mississippi River, near McGregor. The essays were given at meetings of scientific societies (she belonged to 15) or were published in their journals, and included such titles as "Feeding Winter Birds" and "Experiments in Feeding Hummingbirds During Seven Summers." She was recognized for her knowledge of birds, and her forceful and pungent wit.

Miss Sherman was born on the Iowa farm in 1853 and died there in 1943. She was an artist and teacher for the first 20 …


Fall Field Report, August-November 1996, W. Ross Silcock, Joel G. Jorgensen Dec 1996

Fall Field Report, August-November 1996, W. Ross Silcock, Joel G. Jorgensen

Nebraska Bird Review

This fall we received numerous excellent reports from which to compile this summary. Most parts of the state are covered, except the southwest and north central, although many observers at least pass through those areas. A note about details on unusual observations. The new NOU Field Card, which can be ordered by sending a stamped, self-addressed envelope to the NOU Librarian, Univ of Nebraska State Museum, Lincoln, NE 68588-0514, indicates species that need complete documentations, mostly casual and accidental species. However, we realize that information about early and late migration dates, and rarity in the west or east is not …


Nebraska Bird Review (December 1996) 64(4), Whole Issue Dec 1996

Nebraska Bird Review (December 1996) 64(4), Whole Issue

Nebraska Bird Review

Fall Field Report, August–November 1996 … 106

Observers for Fall Field Report … 129

Whooping Crane Sightings, August–December 1996 … 129

Notes on Bird Sightings in Nebraska … 130

1995 (Seventh) Report of the NOU Records Committee … 132

Book Review … 138

Index to Volume 64 (compiled by R. G. Cortelyou) … 139


"Notes On Bird Sightings In Nebraska," From Nebraska Bird Review (December 1996) Dec 1996

"Notes On Bird Sightings In Nebraska," From Nebraska Bird Review (December 1996)

Nebraska Bird Review

House Finches. This species has been appearing at my backyard feeders, 10 to 30 feet from our window, for several years, increasing in number each year. They came nearly every day in 1996 except during a period that I associate with post-breeding molt. Numbers varied from one to a maximum of 17 at one time, with 11 counted for the 1996 Christmas Bird Count. We commonly use 7-8 power binoculars to look for a rare Purple Finch. House Finches are noticeably smaller than House Sparrows and slightly larger than American Goldfinches, and feed with both species.

Males have varied in …


Juvenile Fish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Volume 1995, Patrick J. Geer, Herbert M. Austin Dec 1996

Juvenile Fish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Volume 1995, Patrick J. Geer, Herbert M. Austin

Reports

The Virginia Institute of Marine Science (VIMS) has conducted a trawl survey dating back to 1955. Over the years methods and objectives have varied according to funding sources and state and/or federal mandates. The present thrust of the program is to provide juvenile indices of relative abundance for recreationally, commercially, and ecologically· important fish and invertebrates. These measures of juvenile abundance are widely used as a key element in the management of the Atlantic States' coastal fishery resources. Estimates of juveniles (age-0) have proven to be a reliable and early indicator of future year-class strength. A review of previously available …


Effect Of Nesting Structure Density On Clutch Success Of Canada Geese, Branta Canadensis, Nesting In Constructed Wetlands In The Cave Run Lake, Kentucky, Area, Teresa L. Caudill Nov 1996

Effect Of Nesting Structure Density On Clutch Success Of Canada Geese, Branta Canadensis, Nesting In Constructed Wetlands In The Cave Run Lake, Kentucky, Area, Teresa L. Caudill

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Teresa L. Caudill on November 26, 1996.


Helminths Of The Southwestern Toad, Bufo Microscaphus, Woodhouse's Toad, Bufo Woodhousii (Bufonidae), And Their Hybrids From Central Arizona, Stephen R. Goldberg, Charles R. Bursey, Keith B. Malmos, Brian K. Sullivan, Hay Cheam Nov 1996

Helminths Of The Southwestern Toad, Bufo Microscaphus, Woodhouse's Toad, Bufo Woodhousii (Bufonidae), And Their Hybrids From Central Arizona, Stephen R. Goldberg, Charles R. Bursey, Keith B. Malmos, Brian K. Sullivan, Hay Cheam

Great Basin Naturalist

The gastrointestinal tracts, lungs, and urinary bladders from 77 Bufo microscaphus, 61 Bufo woodhousii, and 8 of their hybrids were examined for helminths. One species of trematode (Glypthelmins quieta), 1 species of cestode (Distoichometra bufonis), and 5 species of nematodes (Aplectana incerta, A. itzocanensis, Rhabdias americanus, Physaloptera sp., and Physocephalus sp.) were found. The greatest prevalence (41%) and mean intensity (231.7) were recorded for Aplectana incerta in Bufo woodhousii. It appears hybrids harbor fewer parasites than either parent species.


Assessment And Choice: An Operant Simulation Of Foraging In Patches, John P. Roche, D. Alan Stubbs, William E. Glanz Nov 1996

Assessment And Choice: An Operant Simulation Of Foraging In Patches, John P. Roche, D. Alan Stubbs, William E. Glanz

Biology and Ecology Faculty Scholarship

Pigeons were presented with an operant simulation of two prey patches using concurrent random ratio schedules of reinforcement. An unstable patch offered a higher initial reinforcement probability, which then declined unpredictably to a zero reinforcement probability in each session. A stable patch offered a low but unvarying reinforcement probability. When the reinforcement probability declined to zero in a single step, the birds displayed shorter giving-up times in the unstable patch when the ratio between the initial reinforcement probabilities in the unstable and stable patches was greater and when the combined magnitude of the reinforcement probabilities in the two patches was …


Kentucky Warbler (Vol. 72, No. 4), Kentucky Library Research Collections Nov 1996

Kentucky Warbler (Vol. 72, No. 4), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.


A Re-Evaluation Of Hotspot Settlement In Lekking Sage Grouse, Robert M. Gibson Nov 1996

A Re-Evaluation Of Hotspot Settlement In Lekking Sage Grouse, Robert M. Gibson

School of Biological Sciences: Faculty Publications

Recent analyses of avian leks have come to conflicting conclusions concerning the role of male settlement on female traffic hotspots. This issue was re-examined in the sage grouse, Centrocercus urophasianus, using data on prenesting movements of radio-tagged females and the dispersion of lekking males collected during a 10-year field study. As expected with hotspot settlement, leks were preferentially located in areas through which females traveled between wintering and nesting ranges before mating. In addition, the distribution of males among leks was related proximately to variation in numbers of females visiting each lek during the mating period and ultimately to …


Estimation Of Direct And Maternal Breed Effects For Prediction Of Expected Progeny Differences For Birth And Weaning Weights In Three Multibreed Populations, F. A. Rodriguez-Almeida, L. Dale Van Vleck, K. E. Gregory Oct 1996

Estimation Of Direct And Maternal Breed Effects For Prediction Of Expected Progeny Differences For Birth And Weaning Weights In Three Multibreed Populations, F. A. Rodriguez-Almeida, L. Dale Van Vleck, K. E. Gregory

Department of Animal Science: Faculty Publications

Direct and maternal breed effects on birth and 200-d weights were estimated for nine parental breeds (Hereford [H], Angus [A], Braunvieh [B], Limousin [L], Charolais [C], Simmental [S], Gelbvieh [G], Red Poll [R], and Pinzgauer [P]) that contributed to three composite populations (MARC I = ¼B, ¼C, ¼L, ⅛H, ⅛A; MARC II = ¼G, ¼S, ¼H, ¼A; and MARC III = ¼R, ¼P, ¼H, ¼A). Records from each population, the composite plus pure breeds and crosses used to create each composite, were analyzed separately. The animal model included fixed effects of contemporary group (birth year-sex-dam age), proportions of individual and …


Comparison Of Circulating Concentrations Of Reproductive Hormones In Boars Of Lines Selected For Size Of Testes Or Number Of Ovulations And Embryonal Survival To Concentrations In Respective Control Lines, D. V. Mariscal, P. L. Wolfe, E. G. M. Bergfeld, A. S. Cupp, F. N. Kojima, K. E. Fike, T. Sanchez, M. E. Wehrman, R. K. Johnson, R. J. Kittock, J. J. Ford, J. E. Kinder Oct 1996

Comparison Of Circulating Concentrations Of Reproductive Hormones In Boars Of Lines Selected For Size Of Testes Or Number Of Ovulations And Embryonal Survival To Concentrations In Respective Control Lines, D. V. Mariscal, P. L. Wolfe, E. G. M. Bergfeld, A. S. Cupp, F. N. Kojima, K. E. Fike, T. Sanchez, M. E. Wehrman, R. K. Johnson, R. J. Kittock, J. J. Ford, J. E. Kinder

Department of Animal Science: Faculty Publications

The objectives of this study were to determine whether circulating concentrations of gonadotropins and gonadal hormones of boars were altered as a result of selection of pigs for size of testes or for embryonal survival and(or) number of ovulations. Included in Exp. 1 and 2 were boars with the greatest estimated paired weight of testes (TS) and boars from a control (C) line. Concentrations of FSH were similar (P > .10) in boars from the TS and C lines. In Exp. 3, 4, and 5, circulating concentrations of FSH and 17β-estradiol (E2) were evaluated in neonates, during pubertal …


Diversity Of Arkansas Water Resources Research, Kenneth F. Steele Oct 1996

Diversity Of Arkansas Water Resources Research, Kenneth F. Steele

Technical Reports

In order to understand, protect, and manage our water resources effectively knowledge is required from many diverse areas of science, engineering, economics, and sociology. These proceedings of the conference on the Diversity of Arkansas Water Resources Research reflect this need and demonstrate how researchers in the state are responding to water issues and problems in Arkansas. The papers in these proceedings are representative of the research in Arkansas, but are only a sample of the work being conducted by universities and government agencies in Arkansas. We are grateful that Arkansas has the expertise available to provide the information necessary to …


Shark Bay World Heritage Property: Summary Of Public Submissions To The Draft Management Plan For Fish Resources, Kevin A. Francesconi Oct 1996

Shark Bay World Heritage Property: Summary Of Public Submissions To The Draft Management Plan For Fish Resources, Kevin A. Francesconi

Fisheries management papers

In November 1994, the draft management plan for fish resources for the Shark Bay World Heritage Area (Fisheries Management Paper no 72) was released for public comment. This report summarises and analyses the 28 written public submissions received to the draft fisheries management plan.


Notes On The Milliped Pleuroloma Flavipes (Polydesmida: Xystodesmidae) In Wisconsin, Dreux J. Watermolen, G Andrew Larsen Oct 1996

Notes On The Milliped Pleuroloma Flavipes (Polydesmida: Xystodesmidae) In Wisconsin, Dreux J. Watermolen, G Andrew Larsen

Field Station Bulletins

The milliped Pleuroloma flavipes Rafinesque 1820 is one of the more widespread and better known North American millipeds. During the course of recent studies in Wisconsin, we have had opportunities to examine museum specimens and make field observations of this species. In this note, we report new locality records, discuss observations of mass aggregations, describe a color variation, and illustrate an individual with developmental abnormalities.


The Centipede Lithobius Celer (Chilopoda: Lithobiidae) In Wisconsin, Dreux J. Watermolen Oct 1996

The Centipede Lithobius Celer (Chilopoda: Lithobiidae) In Wisconsin, Dreux J. Watermolen

Field Station Bulletins

The centipede Lithobius celer Bollman 1888 has been reported from Wisconsin only one time. Chamberlin (1911) provisionally referred specimens collected from unspecified Wisconsin and Michigan localities to this species, with considerable doubt since neither was a ''fully-grown male/' Subsequent investigators (e.g., Matthews 1935, Crabill 1958) did not report L. celer from the state. While examining specimens collected as part of an on-going prairie ecology study, I discovered a L. celer specimen from southern Wisconsin. The specimen was collected in a pitfall trap at Hawkhill Prairie, Dane County (T9N, R8E, Sec. 5) on 21 August 1986 by A. Lisken.


Comparison Of Wisconsin Terrestrial Isopods And Their Life Cycle Traits, Joan Jass, Barbara Klausmeier Oct 1996

Comparison Of Wisconsin Terrestrial Isopods And Their Life Cycle Traits, Joan Jass, Barbara Klausmeier

Field Station Bulletins

Seasonal reproductive patterns for the 11 terrestrial isopod species found in Wisconsin are presented. The pattern of the most widespread species, Trachelipus rathkei, is examined hi detail through a series of paired north/south samplings which reveal a seasonal lag in the percent of females which were gravid in populations from the northern part of the state. A difference in sex ratio between north and south samples is reported.


Genetic And Phylogenetic Divergence Of Feline Immunodeficiency Virus In The Puma (Puma Concolor), Margaret A. Carpenter, Eric W. Brown, Melanie Culver, Warren E. Johnson, Jill Pecon-Slattery, Dulce Brousset, Stephen J. O'Brien Oct 1996

Genetic And Phylogenetic Divergence Of Feline Immunodeficiency Virus In The Puma (Puma Concolor), Margaret A. Carpenter, Eric W. Brown, Melanie Culver, Warren E. Johnson, Jill Pecon-Slattery, Dulce Brousset, Stephen J. O'Brien

Biology Faculty Articles

Feline immunodeficiency virus (FIV) is a lentivirus which causes an AIDS-like disease in domestic cats (Felis catus). A number of other felid species, including the puma (Puma concolor), carry a virus closely related to domestic cat FIV. Serological testing revealed the presence of antibodies to FIV in 22% of 434 samples from throughout the geographic range of the puma. FIV-Pco pol gene sequences isolated from pumas revealed extensive sequence diversity, greater than has been documented in the domestic cat. The puma sequences formed two highly divergent groups, analogous to the clades which have been defined for …


Shark Bay Management Paper For Fish Resources, Fisheries Department Of Western Australia, Department Of Conservation And Land Management Oct 1996

Shark Bay Management Paper For Fish Resources, Fisheries Department Of Western Australia, Department Of Conservation And Land Management

Fisheries management papers

This paper deals with the management of fish resources in the Shark Bay World Heritage Property which are the responsibility of the Fisheries Department of Western Australia. It was prepared by the Fisheries Department in close liaison with the Department of Conservation and Land Management. The policies and guidelines proposed in this paper will be followed for a period not exceeding 10 years.


Fish & Wildlife News: October 1996 Oct 1996

Fish & Wildlife News: October 1996

Fish and Wildlife News

Contents:
Putting Refuges on the Map: Service Celebrates National Wildlife Refuge Week
Statement by President Clinton on Signing the “Mollie Beattie Wilderness Area Act”
Service Mussels Forward with Ecosystem Approach to Fish and Wildlife Conservation
Service Helps Dedicate Illinois Wetland as 15th Wetland of International Importance
Service Proposes Youth Waterfowling Day; Approval of Bismuth-Tin Sho
Seven Departments Agree to Bolster Recreational Fisheries
Talented Toddler Takes Trout at Alaska “Kids Fishing Day”
Service Urges Boaters to “Pump and Dump”
Lions and Tigers and . . . Snakes–– O’Hare Exhibit Educates Travelers About Illegal Wildlife
Wolves Thriving in Yellowstone, No New Introductions …


Juvenile Finfish And Blue Crab Stock Assessment Program York River Random Stratified Bottom Trawl Survey Data Summary Report Volume R1989-1990, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin Oct 1996

Juvenile Finfish And Blue Crab Stock Assessment Program York River Random Stratified Bottom Trawl Survey Data Summary Report Volume R1989-1990, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

The Virginia Institute of Marine Science (VIMS) has conducted a bottom trawl survey of some fashion since 1955. Historically, sampling has occurred as mid-channel transects at fixed locations spaced at approximately five mile intervals. In the early 1970's, work was performed on the Mobjack Bay and Piankatank River using the standard 30 ft. fishing gear from a large research platform, with a 16 ft. gear towed from an outboard skiff or Chesapeake deadrise at shallow stations (:$; 12 ft.). Linda Pushee Mercer initiated the first random survey of the York River in 1971-72, as part of the results of a …


The Diet Of Oryzomys Palustris Based On Stomach Content Analysis, Shannon L. Wright Oct 1996

The Diet Of Oryzomys Palustris Based On Stomach Content Analysis, Shannon L. Wright

Biological Sciences Theses & Dissertations

Oryzomys palustris (Harlan) is unusual in that it is one of two carnivorous mammals in the Family Muridae in North America. A diet analysis of Oryzomys palustris. the marsh rice rat, was done based on stomach contents. This was accomplished by taking the animals from two study areas located on the Eastern Shore of Virginia. The animals were taken monthly for one year. Once caught, the animals were sacrificed and their stomach contents were identified to the lowest taxonomic level possible. This study showed that rice rats were omnivorous mammals, eating a variety of foods, including dicots, monocots, crabs, …