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Articles 30751 - 30780 of 36506
Full-Text Articles in Entire DC Network
Eimeria Halleri Sp. N. (Apicomplexa: Eimeriidae) From The Round Stingray, Urolophus Halleri (Rajiformes: Dasyatidae), Steve Upton, John Bristol, Scott Lyell Gardner, Donald W. Duszynski
Eimeria Halleri Sp. N. (Apicomplexa: Eimeriidae) From The Round Stingray, Urolophus Halleri (Rajiformes: Dasyatidae), Steve Upton, John Bristol, Scott Lyell Gardner, Donald W. Duszynski
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Eimeria halleri sp. n. (Apicomplexa: Eimeriidae) is described from the rectal contents ofthe round stingray, Urolophus halleri Cooper (Rajiformes: Dasyatidae) from Puerto Penasco, Mexico. Oocysts are spherical or subspherical, 16.9 x 16.8 (15.0-18.0 x 15.0-18.0) /μm, with a smooth, thin wall. Micropyle, polar granule, and oocyst residuum are absent. Sporocysts are ovoid, 11.1 x 6.8 (10.0-13.0 x 6.0-7.5) /μm and possess Stieda and substieda bodies. Sporozoites are comma-shaped, 9.9 x 3.2 (9.0-11.0 x 2.8-4.0) /μm and contain an ovoid posterior and a spherical anterior refractile body. The sporocyst residuum consists either of numerous finely granular particles scattered among the sporozoites …
Aspects Of Ecology And Biogeography Of Acanthocephala On Antarctic Seabirds [Données Écologiques Et Biogéographiques Sur Les Acantocéphales D’Oiseaux Marins Antarctiques], Eric P. Hoberg
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Four species of acanthocephalans are reported from seabirds, nototheniid fishes and gammaridean amphipods in the western Antarctic. Corynosoma hamanni (von Linstow, 1892) was found in Phalacrocorax atriceps King, Chionis alba (Gmelin), Larus dominicanus Lichtenstein, and Catharacta lonnbergi (Mathews). The complete life cycle of this acanthocephalan was elucidated: cysticanths develop in the haemocoel of a gammaridean amphipod, Pontogeneiella sp. of the family Eusiridae and presumably, following ingestion of parasitized amphipods, encyst in the body cavity of Antarctic fishes of several species. Corynosoma singularis Skriabin and Nikol’skii, 1971 was found only in P. atriceps. Corynosoma bullosum (von Linstow, 1892) occurred in both …
The Monographic Literature Of The Galliformes, Paul A. Johnsgard
The Monographic Literature Of The Galliformes, Paul A. Johnsgard
Paul Johnsgard Collection
Because of their extraordinarily diverse beauty and importance as sporting birds, pheasants and their relatives have been the subjects of many of the world's finest ornithological books, some of which also rank as among the most valuable from a book-collector's viewpoint. It is the purpose of this brief review to mention some of the landmark books or technical monographs dealing with major groups of Galliformes, both from the standpoints of their informational contents and their relative availability or collector's value. Emphasis is placed on English-language publications, although a few important recent German publications are mentioned.
Probably any review of galliform …
Analysis Of The Reproductive Efficiency Of The Dairy Herd At Western Kentucky University Farm, Gregorio Lagombra
Analysis Of The Reproductive Efficiency Of The Dairy Herd At Western Kentucky University Farm, Gregorio Lagombra
Masters Theses & Specialist Projects
A study of the reproductive performance of 179 dairy cows during the period from December 1978 through March 1984 was conducted at the Western Kentucky University Farm, Bowling Green, Kentucky. The climatic data showed seasonal variation in temperature as follows: winter 3.10C, spring 15.7°C, summer 23.8°C, and fall 12.0°C. The seasonal humidity was similar for winter (81.2%), spring (83.4%), and fall (85.3%); but for summer it was considerably higher (89.4%).
The conception rate varied through all the months but was lowest during the summer months. Seasonal data for conception rate were obtained and the results were as follows: winter 54.1%, …
Sexual Selection In Lekking Sage Grouse: Phenotypic Correlates Of Male Mating Success, Robert M. Gibson, Jack W. Bradbury
Sexual Selection In Lekking Sage Grouse: Phenotypic Correlates Of Male Mating Success, Robert M. Gibson, Jack W. Bradbury
School of Biological Sciences: Faculty Publications
Mate choice cues in sage grouse were reinvestigated by analyzing relationships between male mating success and a range of suggested cues. Display cues were implicated by significant relationships between mating status (whether or not a male mated) and lek attendance, display rate (corrected for effects of female proximity and time of day) and an acoustic component related to temporal and frequency measures of a whistle emitted during the strut display. Although display rate and the acoustic component were intercorrelated, both exerted significant partial effects on mating success in multivariate analyses. These display measures also differed significantly between males. In contrast, …
Masthead From Nebraska Bird Review (December 1985) 53(4)
Masthead From Nebraska Bird Review (December 1985) 53(4)
Nebraska Bird Review
Published quarterly in March, June, September, and December by the Nebraska Ornithologists' Union, Inc., as its official journal and sent to all members who are not in arrears for dues. Subscriptions (on calendar year basis only) are $10.00 per year in the United States, $12.00 per year in Canada and Mexico, and $12.50 per year in all other countries, payable in advance. Single copies are $3.00 each, postpaid, in the United States; $3.50 elsewhere.
Memberships (on a calendar year basis only): Student, $3.00; Active, $7.00; Sustaining, $15.00; Family Active, $10.00; Family Sustaining, $20.00; Life, $100.00.
All dues and subscriptions should …
“Notes” From Nebraska Bird Review (December 1985) 53(4)
“Notes” From Nebraska Bird Review (December 1985) 53(4)
Nebraska Bird Review
FILLMORE COUNTY. On 23 June 1985, while I was atlasing block #IF01 in Fillmore County, just north of Shickley, I saw a Common Moorhen in Weis Lagoon and found a nest with 11 eggs. There was also a very large colony of Black-crowned Night-Herons [and] also a colony of Great-tailed Grackles.—William C. Garthright, Lincoln
RED-NECKED GREBE. On 16 June 1985 1 was wading through some cattails at the edge of a small open area in a pond at the North 27th Street marsh when I came upon a grebe sitting in the open on the water.—William C. Garthright, Lincoln
IBIS …
Nebraska Bird Review (December 1985) 53(4), Whole Issue
Nebraska Bird Review (December 1985) 53(4), Whole Issue
Nebraska Bird Review
1985 Fall Field Day … 70
Supplement to 1985 Spring Occurrence Report … 70
Black-necked Stilts Nesting in Nebraska … 72
A Red Phalarope in Pierce County, Nebraska … 72
The Red-naped Sapsucker in Nebraska … 73
Nesting Observations of the Piping Plover near Sioux City … 74
Notes … 76
Index To Volume 53
Nebraska Bird Review
Accipiter sp. 19
Adcock, Cash and Dorothy 63
Albino 41, 54
Alexander, George and Irene 22
Alfred, Norris 6, 17, 46, 60
Ani, Groove-billed 78
Avocet, American 9, 39(2), 46, 48, 55, 71, 72, 77, 78
. . .
Wright, Rick 3, 18, 22, 41, 42, 44, 57, 68, 70, 82
Wyman, Howard and Wilma 70
Wilma 22
Yellowlegs, Greater 9, 55, 70
Lesser 10, 39, 41, 55
sp. 9, 39
Yellowthroat, Common 15, 39, 46, 63
Zendeh, Scheil 41(2), 43, 82
Black-Necked Stilts Nesting In Nebraska, Mark J. Helsinger
Black-Necked Stilts Nesting In Nebraska, Mark J. Helsinger
Nebraska Bird Review
On 7 May 1985 I saw two adult Black-necked Stilts on Lower Harrison Lake, Crescent Lake NWR, Garden County. In the middle of June photographers Charlie and Rita Summers saw two on Martin Lake. On 11 July I saw two adults. and four young on Martin Lake. The whitish/gray-colored young had long grayish/green legs (3–4") and a black bill, about 2" long. They appeared to be feeding by probing soft mud. The two adults were exhibiting aggressive behavior. One adult dived and screamed at a Blue-winged Teal hen with eight ducklings until they moved from the area, and also chased …
1985 Fall Field Day
Nebraska Bird Review
Pleasant weather greeted the 70 people who attended part or all of the 1985 Fall Field Day, at the 4-H Camp at Halsey National Forest, 5 and 6 October. There was a slide show Friday night and the official tally Sunday noon, but other than the scheduled meals, the rest of the time was free for individual birding. The committee on a records committee completed its work and presented its report to the directors. The report was accepted and Tanya Bray, Ruth Green, and Wayne Mollhoff were appointed to 3-year terms on the committee, Alice Kenitz and Barbara Padelford for …
The Red-Naped Sapsucker In Nebraska, Tanya E. Bray, Barbara K. Padelford, W. Ross Silcock
The Red-Naped Sapsucker In Nebraska, Tanya E. Bray, Barbara K. Padelford, W. Ross Silcock
Nebraska Bird Review
The Red-naped Sapsucker (Sphyrapicus nuchalis) was for many years accorded subspecific status within Yellow-bellied Sapsucker (Sphyapicus varius), but the American Ornithologists’ Union recently revised this opinion, and now regards nuchalis as a “good” species (Auk 102:680). Red-naped Sapsucker can be added to the Nebraska (species) list on the basis of three specimens in the collection of the University of Nebraska State Museum (UNSM).
The breeding range of Red-naped Sapsucker includes the Rocky Mountains east of the Cascades from southwest Canada south to central Arizona and it winters in much of northern Mexico, north as far …
Supplement To 1985 Spring Occurrence Report
Supplement To 1985 Spring Occurrence Report
Nebraska Bird Review
The following records were overlooked until it was too late to include them in the original report (NBR 53:50). They are either earlier, later, or new records for the localities listed, most recorded by Rick Wright, but also by Glen Kramer and the Werthmans. April is A, May is M. Four species and a hybrid, all marked +, were not in the first report, so that the total for the state is 296 rather than 292. The Douglas-Sarpy count is increased by two; no attempt was made to get similar figures for the other columns since they would affect …
Seasonal Variation In Population Location Of The Galapagos Tortoise, Geochelone Elephantopus Vandenburghi, On Volcan Alcedo, Isabela Island, Galapagos Archipelago, Kent R. Beaman
Loma Linda University Electronic Theses, Dissertations & Projects
Twenty tortoises, 10 adult males and 10 adult females, were tagged with radio transmitters. Numbers were painted on each carapace to aid in visual sighting. The tortoises were released, and their movement was monitored over a one year period.
The percent recovery of tagged tortoises along with the numbers of non-tagged tortoises counted in sections of the study area, were used to determine tortoise population movement and location.
Weather data were collected and observations were made concerning the vegetation. These observations were compared with those from previous studies to see what impact seasonal climatic conditions and food availability had on …
Nesting Observations Of The Piping Plover Near Sioux City, Randall D. Williams
Nesting Observations Of The Piping Plover Near Sioux City, Randall D. Williams
Nebraska Bird Review
From mid-April to early August 1985 members of the Loess Hills Audubon Society monitored the nesting of Piping Plover (Charadrius melodus) on fly-ash settling ponds of the IPS Port Neal Generating Station, on the Missouri River near Salix, Iowa. Declining regional and national populations (Barie, 1985; Kaufman, 1984; and Evans, 1985) make the discovery of nesting individuals quite exciting. Piping Plovers were first found at this site in 1984.
The ash ponds appear to be very good nesting habitat (Evans, 1985). There are large areas of gravel-like substrate with little to no vegetation, minimal human disturbance, and an …
A Red Phalarope In Pierce County, Nebraska, Mark A. Brogie, Ed M. Brogie
A Red Phalarope In Pierce County, Nebraska, Mark A. Brogie, Ed M. Brogie
Nebraska Bird Review
The Red Phalarope (Phalaropus fulicaria) is seen yearly in the central portion of the United States, from the Great Lakes to Texas. More than 85% of these sightings are from fall, with 75% of the total from September to November (Dinsmore et al., 1984). This species is, however, considered a very rare or accidental migrant through the Plains States (Johnsgard 1980). A single specimen, taken on 15 October 1921 at Dad’s Lake, near Wood Lake in Cherry County (Conover 1934) represents the only previous record of this species in Nebraska. The following represents the first record for this …
Kentucky Warbler (Vol. 61, No. 4), Kentucky Library Research Collections
Kentucky Warbler (Vol. 61, No. 4), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Wpa News 10 (1985), World Pheasant Association
Wpa News 10 (1985), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (November 1985), number 10
Published by the World Pheasant Association
Selection Practices And Genetic And Phenotypic Trends Estimated From Nebraska Spf Swine Field Records, P. J. David, R. K. Johnson, T. E. Socha
Selection Practices And Genetic And Phenotypic Trends Estimated From Nebraska Spf Swine Field Records, P. J. David, R. K. Johnson, T. E. Socha
Department of Animal Science: Faculty Publications
Records collected during 1971 through 1979 from 101,606 pigs raised in 18 herds that were members of the Nebraska SPF Swine Accrediting Association were evaluated for phenotypic trends and predicted and observed genetic trends. Traits considered were backfat at 100 kg (BF) and weight at 140 d of age (WT). Phenotypic change on average was beneficial for BF (-.05 mm/yr) but undesirable for WT (-.2 kg/yr). However, the average observed genetic trend was nil for BF and .6 kg/yr for WT. An average, predicted response based on observed selection differentials and estimates of within herd-sex genetic parameters was in good …
State Of The Fisheries Report 1984, Fisheries Department Of Western Australia
State Of The Fisheries Report 1984, Fisheries Department Of Western Australia
Status Reports of the Fisheries and Aquatic Resources
Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1983/84 was $141 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $160 million.
Footrot In Sheep And Goats, Department Of Agriculture, Western Australia
Footrot In Sheep And Goats, Department Of Agriculture, Western Australia
Animal production and livestock published reports
Reference to sheep in this pamphlet applies equally to goats.
Footrot is a contagious disease of sheep and goats caused by the bacterium Baueroides nodosus.
The bacterium can cause varying degrees of damage to the horn of the foot. The resulting infection can lead to lameness and serious loss of body condition.
Genetic Mapping Of Endogenous Rd-114 Retroviral Sequences Of Domestic Cats, Roger H. Reeves, William G. Nash, Stephen J. O'Brien
Genetic Mapping Of Endogenous Rd-114 Retroviral Sequences Of Domestic Cats, Roger H. Reeves, William G. Nash, Stephen J. O'Brien
Biology Faculty Articles
The RD-114 family of endogenous retroviral sequences in domestic cats has been shown to consist of approximately 20 copies of genetically divergent virogenes per haploid genome. The chromosomal localization for four endogenous sequences (RDV1-4) was accomplished by correlating the occurrence of specific feline chromosomes with diagnostic viral DNA fragments in a panel of cat x rodent somatic cell hybrids. Analysis of the hybrid panel revealed that endogenous RD-114 sequences are dispersed on multiple cat chromosomes, that certain proviral segments are polymorphic with respect to the presence or absence of virus, and that a restriction fragment characteristic of inducible RD-114 resides …
The Hippocampus As Episodic Encoder: Does It Play Tag?, Robert H.I. Dale
The Hippocampus As Episodic Encoder: Does It Play Tag?, Robert H.I. Dale
Scholarship and Professional Work - LAS
Rawlins’s characterization of the hippocampus as a “high-capacity, immediate-term memory store” captures the essential idea in a number of previous models. For example, Gaffan (1974), Gray (1984), Hirsh (1980), Kesner (Bierley, Kesner & Novak 1983), Olton (Olton, Becker & Handelmann 1979), Solomon (1980), and Winocur (1980) all agree that hippocampal animals show memory deficits when required to identify, for whatever reason, one specific event out of a list of recent events. Although these authors disagree on a number of details, Rawlins has identified their models common ground, the core of each model. (It is only fair to note that Gaffan …
“Notes” From Nebraska Bird Review (September 1985) 53(3)
“Notes” From Nebraska Bird Review (September 1985) 53(3)
Nebraska Bird Review
RE SWAN GEESE IN KEITH COUNTY. A recent account (NBR 53:4) of Chinese Geese (domestic forms of the Swan Goose are called Chinese Geese –Ed.) in Keith County seems to suggest that the birds were of natural occurrence. No wild individuals of this species have ever been reported in North America, however, and it may in fact be declining in its native range. It is exceedingly common, though, in zoos and parks as well as on farms, where it is often only nominally a captive; birds are readily available and are not typically afforded the close watch given more valuable …
Hybrid Bluebirds In The Pine Ridge, Barbara L. Wilson, Jim Minyard, Hope Minyard, Tanya Bray
Hybrid Bluebirds In The Pine Ridge, Barbara L. Wilson, Jim Minyard, Hope Minyard, Tanya Bray
Nebraska Bird Review
A hybrid pair of bluebirds is raising young in Dawes County, Nebraska, in the yard of Jim and Hope Minyard, approximately 8 miles south of Crawford. The female of the pair is a Mountain Bluebird (Sialia currucoides). She is basically a dull gray bluebird, with little contrast between upperparts and underparts. There is no rusty or tan on her breast, and no sharp demarcation between the gray breast and the lighter belly. Her rump and the bases of her outer tail feathers are a light, bright blue, while the other tail feathers and the primaries are blackish. When …
Nebraska Bird Review (September 1985) 53(3), Whole Issue
Nebraska Bird Review (September 1985) 53(3), Whole Issue
Nebraska Bird Review
1984 Nebraska Nesting Survey … 46
1985 (Sixtieth) Spring Occurrence Report … 50
Hybrid Bluebirds in the Pine Ridge … 67
Notes … 67
Book Review … 68
“Book Review” From Nebraska Bird Review (September 1985) 53(3)
“Book Review” From Nebraska Bird Review (September 1985) 53(3)
Nebraska Bird Review
The Bird Identification Calendar, 1986, illustrated in color by John Sill, 11 x 14, Stephen Greene Press in cooperation with The Massachusetts Audubon Society, distributed by Viking Penguin Inc., New York City.
The calendar space is full size; the over 70 illustrations and short paragraphs are on the facing page (back of the previous page). Also, two preliminary pages on bird identification in general.
1984 Nebraska Nesting Survey, Esther V. Bennett
1984 Nebraska Nesting Survey, Esther V. Bennett
Nebraska Bird Review
Data on the 1984 nesting season in Nebraska were received from 17 observers and organizations, reporting on 72 species from 36 counties or groups of counties. Counties in the tabulations are listed in a west to east order, with the northernmost of the approximately equal locations given first. Numbers represent Nest Record Cards; N represents nests observed for which no Nest Record Card was submitted; F represents feeding; CF represents carrying food; CN represents carrying nesting material; and Y represents young observed. GPC in the following paragraph represents Nebraska Game and Parks Commission. Thirty species were reported on 192 North …
Masthead From Nebraska Bird Review (September 1985) 53(3)
Masthead From Nebraska Bird Review (September 1985) 53(3)
Nebraska Bird Review
Published quarterly in March, June, September, and December by the Nebraska Ornithologists' Union, Inc., as its official journal and sent to all members who are not in arrears for dues. Subscriptions (on calendar year basis only) are $10.00 per year in the United States, $12.00 per year in Canada and Mexico, and $12.50 per year in all other countries, payable in advance. Single copies are $3.00 each, postpaid, in the United States; $3.50 elsewhere.
Memberships (on a calendar year basis only): Students, $.3.00; Active, $7.00; Sustaining, $15.00; Family Sustaining, $20.00; Life, $100.00.
All dues and subscriptions should be remitted to …
1985 (Sixtieth) Spring Occurrence Report
1985 (Sixtieth) Spring Occurrence Report
Nebraska Bird Review
Two hundred ninety-two species, plus Clark’s Nutcracker, for which no specific dates were reported, and Lapland Longspur, which was not recorded, are listed in this report, from 22 locations. The comparable figures for 1984 are 293 and one possible, from 13 locations; 1983 288 and 2 possibles from 13; and 1982 287 from 15 locations.