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Ecology and Evolutionary Biology

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Articles 271 - 300 of 300

Full-Text Articles in Poultry or Avian Science

Response Properties Of The Auditory Telencephalon In Songbirds Change With Recent Experience And Season, Thomas A. Terleph, Kai Lu, David S. Vicario Aug 2008

Response Properties Of The Auditory Telencephalon In Songbirds Change With Recent Experience And Season, Thomas A. Terleph, Kai Lu, David S. Vicario

Biology Faculty Publications

The caudomedial nidopallium (NCM) is a telencephalic auditory area that is selectively activated by conspecific vocalizations in zebra finches and canaries. We recently demonstrated that temporal and spectral dynamics of auditory tuning in NCM differ between these species [1]. In order to determine whether these differences reflect recent experience, we exposed separate groups of each species and sex to different housing conditions. Adult birds were housed either in an aviary with conspecifics (NORM), with heterospecifics (canary subjects in a zebra finch aviary, and vice versa: (CROSS)), or in isolation (ISO) for 9 days prior to testing. We then recorded extracellular …


Experimental Inoculation Of House Sparrows (Passer Domesticus) With Buggy Creek Virus, Kathryn P. Huyvaert, Amy T. Moore, Nicholas A. Panella, Eric A. Edwards, Mary Bomberger Brown, Nicholas Komar, Charles R. Brown Jan 2008

Experimental Inoculation Of House Sparrows (Passer Domesticus) With Buggy Creek Virus, Kathryn P. Huyvaert, Amy T. Moore, Nicholas A. Panella, Eric A. Edwards, Mary Bomberger Brown, Nicholas Komar, Charles R. Brown

School of Natural Resources: Faculty Publications

We performed experimental inoculations of house sparrows (Passer domesticus) with Buggy Creek virus (BCRV), a poorly known alphavirus (Togaviridae) vectored primarily by the swallow bug (Hemiptera: Cimicidae: Oeciacus vicarius) that is an ectoparasite of the cliff swallow (Petrochelidon pyrrhonota) and house sparrow. Viremias were detected by plaque assay in two of six birds on days 1–3 postinoculation; viremia was highest on day 2. Viral RNA was detected by reverse transcriptase-polymerase chain reaction (RT-PCR) in blood of six of 12 birds ranging from day 1 to day 15 postinoculation. Infectious BCRV was detected in …


Correlation Of Eastern Wild Turkey Poult:Hen Ratios With Population Indices To Detect Reproductive Density Dependence, Jay D. Mcghee, Jim Berkson Oct 2007

Correlation Of Eastern Wild Turkey Poult:Hen Ratios With Population Indices To Detect Reproductive Density Dependence, Jay D. Mcghee, Jim Berkson

Virginia Journal of Science

Knowledge of how density affects population growth is important for the harvest management of wild turkey. Unfortunately, available time-series are often too short for statistical detection of density dependence. The correlation between wild turkey recruitment and population size was assessed using data from 7 state wildlife agencies, circumventing the problem of short time-series by using multiple datasets. Correlation coefficients were calculated between surveyed poult:hen ratios and harvest-based population indices for 31 geographic or harvest management regions. Estimated correlation coefficients were tested for homogeneity to determine if an average correlation could be calculated. Correlation coefficients for the 29 regions ranged from …


The Valuation Of Nature: An Examination Of Benefits And Costs Associated With Duck Nesting Structures And The Marginal Duck Recruit, Tessa Haagenson May 2007

The Valuation Of Nature: An Examination Of Benefits And Costs Associated With Duck Nesting Structures And The Marginal Duck Recruit, Tessa Haagenson

Honors Capstones

Capstone submitted as a graduation requirement for the BSU Honors Program.


Bird Movement Predicts Buggy Creek Virus Infection In Insect Vectors, Charles R. Brown, Mary Bomberger Brown, Amy T. Moore, Nicholas Komar Jan 2007

Bird Movement Predicts Buggy Creek Virus Infection In Insect Vectors, Charles R. Brown, Mary Bomberger Brown, Amy T. Moore, Nicholas Komar

School of Natural Resources: Faculty Publications

Predicting the spatial foci of zoonotic diseases is a major challenge for epidemiologists and disease ecologists. Migratory birds are often thought to be responsible for introducing some aviozoonotic pathogens such as West Nile and avian influenza viruses to a local area, but most information on how bird movement correlates with virus prevalence is anecdotal or indirect. We report that the prevalence of Buggy Creek virus (BCRV) infection in cimicid swallow bugs (Oeciacus vicarius), the principal invertebrate vector for this virus, was directly associated with the likelihood of movement by cliff swallows (Petrochelidon pyrrhonota), an amplifying host …


Ecological Correlates Of Buggy Creek Virus Infection In Oeciacus Vicarius, Southwestern Nebraska, 2004, Amy T. Moore, Eric A. Edwards, Mary Bomberger Brown, Nicholas Komar, Charles R. Brown Jan 2007

Ecological Correlates Of Buggy Creek Virus Infection In Oeciacus Vicarius, Southwestern Nebraska, 2004, Amy T. Moore, Eric A. Edwards, Mary Bomberger Brown, Nicholas Komar, Charles R. Brown

School of Natural Resources: Faculty Publications

Buggy Creek virus (family Togaviridae, genus Alphavirus, BCRV) is an alphavirus within the western equine encephalitis virus complex whose primary vector is the swallow bug, Oeciacus vicarius Horvath (Hemiptera: Cimicidae), an ectoparasite of the colonially nesting cliff swallow, Petrochelidon pyrrhonota, that is also a frequent host for the virus.We investigated ecological correlates of BCRV infection in 100-bug pools at 14 different swallow colony sites in southwestern Nebraska from summer 2004, by using plaque assay on Vero cells to identify cytopathic virus and reverse transcription-polymerase chain reaction to identify noncytopathic viral RNA. We found 26.7% of swallow bug pools …


Zur Nahrungsökologie Des Uhus Bubo Bubo In Der Mongolei = Feeding Ecology Of The Eagle Owl Bubo Bubo In Mongolia, Thomas Hoffmann, Michael Stubbe, D. Heidecke, R. Piechocki, R. Samjaa, J. Erfurt, D. Sumjaa Jan 2005

Zur Nahrungsökologie Des Uhus Bubo Bubo In Der Mongolei = Feeding Ecology Of The Eagle Owl Bubo Bubo In Mongolia, Thomas Hoffmann, Michael Stubbe, D. Heidecke, R. Piechocki, R. Samjaa, J. Erfurt, D. Sumjaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This paper presents further results on the food ecology of the eagle owl in western Mongolia for the years 1984 to 1992. Additional to the already known sites we investigated two new resting places. At least 27 mammal and 17 bird species were recorded. The results confirm previous studies. Small to medium sized mammals (Cricetidae, Dipodidae, Arvicolidae) dominate the prey of the eagle owl whereas birds and invertebrates are less important.


Avifaunistische Beobachtungen Im Westchentej, Ulrich Zöphel, Jochen Schulenberg, Wolf-Dieter Busching, Ingolf Todte Jan 2005

Avifaunistische Beobachtungen Im Westchentej, Ulrich Zöphel, Jochen Schulenberg, Wolf-Dieter Busching, Ingolf Todte

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This paper reports the results of bird observations at four study sites with many different habitats in the western Chentej-mountains (forest steppe, taiga) at the end of the spring-migration and the beginning of the breeding time. Altogether 134 bird species were observed, about 107 of which are probably breeding birds. Additional birds were caught using 6 mist-nets. In this way 98 birds of 21 species were caught, measured, and ringed. Furthermore feathers have been collected (molting feathers and near two breeding places of Accipiter nisus).

The bird fauna of the larch forests shows a high species richness (108 species), …


Das Arteninventar Der Avifauna Der Mongolei Während Einer Nord-Süd-Durchquerung 1997, Tobias Stenzel, Michael Stubbe, R. Samjaa, Annegret Stubbe, C. Dulamsuren Jan 2005

Das Arteninventar Der Avifauna Der Mongolei Während Einer Nord-Süd-Durchquerung 1997, Tobias Stenzel, Michael Stubbe, R. Samjaa, Annegret Stubbe, C. Dulamsuren

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Here we present a detailed report on bird biodiversity of ecosystems along a North-South transect through Mongolia in 1997whic h serves as a guideline for further research projects and training for students in all Mongolian vegetation zones from northern steppes to southern deserts.

Two hundred fifty-five bird species were observed between 21st of July and 10th of August 1997. The main study sites were located in the North the Selenge-Orchon-basin with meadows and dune woodlands 15 km southern from Suchbaatar, the Middle Gobi-Aimag with desert steppes and sajrs (covered with Ulmus pumila) and in the Bordzongijn-gobi in the South …


Über Die Federmerkmale Der Mongolischen Sakerfalken Falco Cherrug Milvipes Im Vergleich Zu Den Westlichen Sakerfalken Der Unterart F. Ch. Cherrug Und Bemerkungen Über Die Gefiedermerkmale Des “Altaifalken”, Wolf-Dieter Busching Jan 2005

Über Die Federmerkmale Der Mongolischen Sakerfalken Falco Cherrug Milvipes Im Vergleich Zu Den Westlichen Sakerfalken Der Unterart F. Ch. Cherrug Und Bemerkungen Über Die Gefiedermerkmale Des “Altaifalken”, Wolf-Dieter Busching

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The different plumage characteristics of the Mongolian Saker Falco cherrug milvipes and the nominate race F. ch. cherrug are discussed. It could be shown that both races are polymorphic. According to Baumgart (1997), Sakers don’t need uniform plumages because they live on nearly blind voles. Due to that there seems to be no selection pressure from victims side. The same phenomenon is observable with Buteo buteo and the typical Mongolian Buteo hemilasius.

Whereas young Sakers of the nominate race cherrug equal more or less already adults, are the differences in the plumage of juv. and ad. milvipes great enough. …


Left-Sided Directional Bias Of Cloacal Contacts During House Sparrow Copulations, Karen B. Nyland, Michael P. Lombardo, Patrick A. Thorpe Dec 2003

Left-Sided Directional Bias Of Cloacal Contacts During House Sparrow Copulations, Karen B. Nyland, Michael P. Lombardo, Patrick A. Thorpe

Peer Reviewed Publications

Most female birds have only a left ovary and associated oviduct. The entry to the oviduct is on the left side of the urodeum of the cloaca. This arrangement may favor males that mount females from the left during copulation if it results in sperm being placed closer to the opening of the oviduct. Therefore, we predicted a left-sided directional bias of cloacal contacts during House Sparrow (Passer domesticus) copulations. Cloacal contacts from the left outnumbered those from the right 74 to 25 (3:1) during 25 bouts of copulation at 11 House Sparrow nests. While this pattern suggests …


Determining Differences In The Spatial Distribution Of Forest Structure On The Kaibab Plateau: Implications For Forest Management And The Northern Goshawk, Ryan S. Miller Apr 2001

Determining Differences In The Spatial Distribution Of Forest Structure On The Kaibab Plateau: Implications For Forest Management And The Northern Goshawk, Ryan S. Miller

Other Publications in Wildlife Management

The Kaibab Plateau, in North Central Arizona, has undergone extensive change in the last 100 years due to land management practices such as logging, road building, and fire suppression. The northern goshawk (Accipiter gentilis) has been a center of controversy, due to the potential effects of silvicultural practices on goshawk breeding habitat (Reynolds-1983, Bloom et al 1986, Kennedy 1989, Crocker-Bedford 1990). Current and past research efforts on the Kaibab Plateau have mapped Goshawk nesting territories and temporal change in nesting behavior and success. However, these research efforts have not determined how long-term spatial changes in land-use activities that have influenced …


Within-Pair Copulations: Are Female Tree Swallows Feathering Their Own Nests?, Michael P. Lombardo Jan 1995

Within-Pair Copulations: Are Female Tree Swallows Feathering Their Own Nests?, Michael P. Lombardo

Peer Reviewed Publications

A variety of hypotheses has been proposed to explain why socially monogamous birds copulate repeatedly with their mates when only a single copulation is necessary to fertilize an entire clutch (Birkhead and Møller 1992, Petrie 1992, Hunter et al. 1993). Petrie (1992) hypothesized that a female should copulate frequently with her mate so as to reduce her mate’s involvement in extrapair copulations. By reducing her mate’s involvement in extrapair copulations, a female may: (1) avoid the transmission of parasites and sexually transmitted diseases (Hamilton 1990); (2) may avoid sperm depletion by her mate; and (3) may monopolize her mate’s paternal …


Utilization Of Wood Duck Nest Boxes With Respect To Plant Community Type, Orientation And Juxtaposition At The Green Bottom Wildlife Management Area, West Virginia, Anthony Benjamin Borda Jr. Jan 1994

Utilization Of Wood Duck Nest Boxes With Respect To Plant Community Type, Orientation And Juxtaposition At The Green Bottom Wildlife Management Area, West Virginia, Anthony Benjamin Borda Jr.

Theses, Dissertations and Capstones

Utilization of wood duck (Aix sponsa, L.) nest boxes was evaluated at the Green Bottom Wildlife Management Area, a 1,110-acre mid-Ohio Valley floodplain. Primary focus was directed upon nest box utilization by the wood duck but use by other wildlife was observed and recorded. Utilization of the nest boxes by the wood duck was analyzed with respect to plant community type, orientation and juxtaposition to other wood duck nest boxes. Forty-three wood duck next boxes were observed and inspected in 1993. Wood ducks nested in 24 of the nest boxes, and 361 eggs were found. Clutch size ranged …


Homosexual Copulations By Male Tree Swallows, Michael P. Lombardo, Ruth M. Bosman, Christine A. Faro, Stephen G. Houtteman, Timothy S. Kluisza Jan 1994

Homosexual Copulations By Male Tree Swallows, Michael P. Lombardo, Ruth M. Bosman, Christine A. Faro, Stephen G. Houtteman, Timothy S. Kluisza

Peer Reviewed Publications

Homosexual courtship behavior in non-human animals is well known (Ford and Beach 1980) and occurs in a wide variety of taxa. However, homosexual copulations, especially between males, are less well known. In birds, males mounting other males have been observed in the colonially breeding Cattle Egret (Bubulcus ibis) (Fujioka and Yamagishi 1981) and Common Murre (Uria aalge) (Birkhead et al. 1985, Hatchwell 1988). Neither Fujioka and Yamagishi (1981) nor Birkhead et al. (1985) and Hatchwell (1988) reported whether cloacal contact occurred during their observations of male-male mountings. Here we describe homosexual copulations by male Tree Swallows …


Hawks, Eagles, And Falcons Of North America: Biology And Natural History, Paul A. Johnsgard Jan 1990

Hawks, Eagles, And Falcons Of North America: Biology And Natural History, Paul A. Johnsgard

Paul Johnsgard Collection

I have tried to present an adequate if far from exhaustive survey of the general biology, ecology, and behavior of all the included species, written so as to be understandable to the interested layman as well as useful to the biologist who might be looking for relevant literature citations or trying to deal with a specific question without resorting to extensive library searches. The larger number of species of North American hawklike birds (31, compared to 19 owl species) has required that I keep the individual species accounts substantially shorter. I have excluded the New World vultures from consideration, primarily …


Seasonal Lekking Behavior Of The Greater Prairie-Chicken In Illinois, Scott A. Simpson Jan 1984

Seasonal Lekking Behavior Of The Greater Prairie-Chicken In Illinois, Scott A. Simpson

Masters Theses

Spring behavior of prairie-chickens (Tympanuchus cupido) has been studied extensively, however there is little information on fall-winter lekking activity. Greater prairie-chickens were observed weekly on a lek from 25 September 1982 to 23 June 1983 during morning and evening hours in Jasper County, Illinois. The peak number of prairie-chicken males on the lek occurred in February although hen attendance did not occur until 10 March 1983. All spring lekking activities were higher compared to that of the fall-winter period. Fall-winter lek activity was aggression which centered on probably brief, less intense male aggression which probably establishes or maintains …


Scaring Of Carrion Crows (Corvus Corone Corone) By Species-Specific Distress Calls And Suspended Bodies Of Dead Crows, Luzia Naef-Daenzer Jan 1983

Scaring Of Carrion Crows (Corvus Corone Corone) By Species-Specific Distress Calls And Suspended Bodies Of Dead Crows, Luzia Naef-Daenzer

Bird Control Seminars Proceedings

In Switzerland, carrion crows can cause considerable damage to sprouting corn fields when feeding on the germinated corn. I tried to evaluate a method to prevent these damages. The use of species-specific distress calls, for the first time described by Frings and Jumber (1954), seemed to be the most promising method. Agronomes and biologists have applied it in field studies to several different bird species causing damage in agriculture and on airports (e.g., Gramet, 1962; Brough, 1968). However, the literature either describes single actions or several different scaring devices being used together. To be able to judge the method, quantitative …


Evaluation Of Potential Wild Turkey Habitat In Eastern Illinois, Cara B. Daugherty Jan 1980

Evaluation Of Potential Wild Turkey Habitat In Eastern Illinois, Cara B. Daugherty

Masters Theses

Reestablishment of the wild turkey has been successful in the southern part of Illinois where large established tracts of woodland occur. However, turkeys are capable of surviving in areas with less forest cover, if food, nesting materials and protection are available. This project evaluated the potential turkey habitat of a 14-county area of eastern Illinois along the drainage of the Wabash River. Six potential release sites were selected and the habitat evaluated. In these areas, oak (Quercus spp.) and hickory (Carya spp.) were the dominant tree species. Disturbance from human populations was determined in each of …


Breeding Birds And Vegetation Of The Central Illinois Floodplain Forest, Daniel Edward Varland Jan 1976

Breeding Birds And Vegetation Of The Central Illinois Floodplain Forest, Daniel Edward Varland

Masters Theses

No abstract provided.


Homing Studies Of Bank Swallows In Eastern Illinois, Jennifer Eileen Hagerstrom Jan 1975

Homing Studies Of Bank Swallows In Eastern Illinois, Jennifer Eileen Hagerstrom

Masters Theses

A series of homing experiments using 39 color-marked Bank Swallows (Riparia riparia) were carried out in eastern Illinois during the summer of 1975. The swallow colony was located four km east-northeast of Charleston, Illinois at the Charleston Stone Quarry. Eight release sites were located in the four compass directions from the home colony at distances of 14.4 to 32.3 km away.

The colony was approached before dawn and swallows were captured using tube traps. Birds were color-marked, banded, and taken in individual bags to the release site by automobile. Cloud cover, wind velocity, wind direction, and orientation behavior …


The Bobwhite Quail, Norm Dey, Jack Sinn Jan 1973

The Bobwhite Quail, Norm Dey, Jack Sinn

Nebraska Game and Parks Commission: Publications

A Year with the Bobwhite

Population Dynamics—Managing the Variables

The Way to Quail Abundance


The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe Jan 1973

The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe

Nebraska Game and Parks Commission: Publications

Ringneck—Its Past and Prospects: A most successful exotic, pheasant numbers are declining

Nuptial Rites and Nesting: Spring recoups winter’s losses

Summer Broods: While cocks undergo their annual moult, hens enter the brooding period; for eight weeks, hens attend chicks

Hunting the Ring-necked Pheasant

Season of Testing: Nebraska’s winters test a pheasant’s mettle, but given good cover and an adequate food supply, the ringneck is almost impervious to the elements

Methods of Management


Life History And Ecology Of The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe Jan 1973

Life History And Ecology Of The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe

Nebraska Game and Parks Commission: Publications

Table of Contents

The Study … 6

Population Studies … 8 ...

Methods … 8 ...

Results and Discussion … 9

Nesting Studies … 13 ...

Methods … 13 ...

Results and Discussion … 14 ...

Nest Parasitism … 16 ...

Effects of Nest Searching on Nest Fate ... 17 ...

Nesting Chronology ... 18 ...

Roadside Nests ... 21 ...

Nesting in Experimental Alfalfa ... 22 ...

Pheasant Production in Wetlands ... 23

Brood Studies … 26 ...

Methods ... 26 ...

Sampling Problems ... 26 ...

Results and Discussion ... 27

Cover Utilization by Pheasant Broods ... 29 …


A Comparison Of Nocturnal Restlessness Of Caged Thrushes And Migration Of Free Thrushes, Charles Goodwin Kjos Jan 1972

A Comparison Of Nocturnal Restlessness Of Caged Thrushes And Migration Of Free Thrushes, Charles Goodwin Kjos

Masters Theses

Nocturnal activity (Zugunruhe) of eight caged, radio-tagged thrushes (Hylocichla spp.) was compared by signal analysis with the occurrence of migration in 16 free, radio-tagged thrushes over a 37-night period during the autumn of 1970 in central Illinois. The study was conducted to determine the extent of synchrony of Zugunruhe and migration in these nocturnal migrants in fall. Zugunruhe frequently occurred on nights when there was no migration, but migration occurred only on nights when at least 50 per cent of the caged birds were active. Except for one departure which was atypical in several respects, migration occurred …


Ninth Random Sample Laying Test, 1965-66, Department Of Agriculture, Western Australia Jan 1967

Ninth Random Sample Laying Test, 1965-66, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

NINTH RANDOM SAMPLE LAYING TEST, 1965-66

POULTRY RESEARCH STATION, WEMBLEY

FINAL REPORT TO 500 DAYS


Tenth Random Sample Laying Test, 1966-67 : Cages, Department Of Agriculture, Western Australia Jan 1967

Tenth Random Sample Laying Test, 1966-67 : Cages, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

TENTH RANDOM SAMPLE LAYING TEST, 1966-67 - CAGES

POULTRY RESEARCH STATION, WEMBLEY

SECOND PROGRESSIVE REPORT TO 26th FEBRUARY, 1967

Average age of birds 215.5 days or 30 weeks and 6 days.


Poultry Behaviour As It Affects Management, R H. Morris Jan 1967

Poultry Behaviour As It Affects Management, R H. Morris

Journal of the Department of Agriculture, Western Australia, Series 4

UNDER natural conditions animals have considerable control over their movements and over their proximity to each other.

Today, however, there is a trend in animal husbandry towards greater intensificaton, and this is most evident in the poultry industry.


Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia Jan 1967

Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

TENTH RANDOM SAMPLE LAYING TEST, 1966-67 - LITTER

POULTRY RESEARCH STATION, WEMBLEY

SECOND PROGRESSIVE REPORT TO 26th FEBRUARY,1967

Average age of birds 215.5 days or 30 weeks and 6 days.


Life Histories Of North American Nuthatches, Wrens, Thrashers And Their Allies: Order Passeriformes, Arthur Cleveland Bent Jan 1948

Life Histories Of North American Nuthatches, Wrens, Thrashers And Their Allies: Order Passeriformes, Arthur Cleveland Bent

Papers in Ornithology

An attempt has been made to give as full a life history as possible of the best-known subspecies of each species and to avoid duplication by writing briefly of the others and giving only the characters of the subspecies, its range, and any -habits peculiar to it. In many cases certain habits, probably common to the species as a whole, have been recorded for only one subspecies. Such habits are mentioned under the subspecies on which the observations were made. The distribution gives the range of the species as a whole, with only rough outlines of the ranges of the …