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Articles 1 - 30 of 1768
Full-Text Articles in Poultry or Avian Science
Climate Change-Associated Declines In Water Clarity Impair Feeding By Common Loons, Walter H. Piper, Max R. Glines, Kevin C. Rose
Climate Change-Associated Declines In Water Clarity Impair Feeding By Common Loons, Walter H. Piper, Max R. Glines, Kevin C. Rose
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Climate change has myriad impacts on ecosystems, but the mechanisms by which it affects individual species can be difficult to pinpoint. One strategy to discover such mechanisms is to identify a specific ecological factor related to survival or reproduction and determine how that factor is affected by climate. Here we used Landsat imagery to calculate water clarity for 127 lakes in northern Wisconsin from 1995 to 2021 and thus investigate the effect of clarity on the body condition of an aquatic visual predator, the common loon (Gavia immer). In addition, we examined rainfall and temperature as potential predictors …
A Year Of Wins For Farmed Animals, Lewis Bollard
A Year Of Wins For Farmed Animals, Lewis Bollard
General – Farm Animal Issues
Although the European Union shelved its ambitious farmed animal welfare reforms, there were other “wins” for farmed animals in 2023. There were 130 new corporate pledges to eliminate cages for laying hens and the worst abuses of broiler chickens. So far, over 1,000 corporate pledges have been fully implemented, and 39% of American hens, 60% of European hens, and 80% of British hens are cage-free, up from 6%, 41%, and 48%, respectively, a decade ago. The US Supreme Court upheld California’s Proposition 12, which bans the sale of eggs, pork, and veal from caged animals and their offspring in California. …
Renovating The Ipmu Via Internet Of Things For Pollutant Emission Estimations In Poultry Facilities, Joshua Dotto
Renovating The Ipmu Via Internet Of Things For Pollutant Emission Estimations In Poultry Facilities, Joshua Dotto
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
The emissions of ammonia (NH3), particulate matter (PM2.5), and carbon dioxide (CO2) are major concerns in poultry facilities. They can pose environmental concerns and nuances. Robust and affordable measurement systems are needed to accurately measure in-barn concentrations and quantify the emissions.
The Intelligent Portable Monitoring Unit (iPMU or PMU3) developed in 2016 was reconstructed into PMU4 to include upgraded NH3 and PM2.5 sensors and wireless connectivity for a low-cost, robust, and accurate air quality monitoring device with contactless data transfer using the concept of Internet of Things (IoT). In addition, a user-friendly …
Corrigendum To “Nigella Sativa As An Antibiotic Alternative To Promote Growth And Enhance Health Of Broilers Challenged With Eimeria Maxima And Clostridium Perfringens” [Poult.Sci.102 (8) (2023) 102831], Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett S. Lumpkins, Zeynep B. Guzel-Seydim, Atif C. Seydim, Annel E. Greene, Xiuping Jiang
Corrigendum To “Nigella Sativa As An Antibiotic Alternative To Promote Growth And Enhance Health Of Broilers Challenged With Eimeria Maxima And Clostridium Perfringens” [Poult.Sci.102 (8) (2023) 102831], Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett S. Lumpkins, Zeynep B. Guzel-Seydim, Atif C. Seydim, Annel E. Greene, Xiuping Jiang
Publications
No abstract provided.
The Nebraska Bird Review (September 2023) 91(3), Whole Issue
The Nebraska Bird Review (September 2023) 91(3), Whole Issue
Nebraska Bird Review
Summer Field Report, June–July 2023, by W. Ross Silcock
2023 Limpkin at Crystal Cove Park, Dakota County, NE, by Bill Huser
2022 (34th) Report of the NOU Records Committee, by Mark A. Brogie
Subscription and Organization Information
2022 (34th) Report Of The Nou Records Committee, Mark A. Brogie
2022 (34th) Report Of The Nou Records Committee, Mark A. Brogie
Nebraska Bird Review
The functions and methods of the Nebraska Ornithologists’ Union Records Committee (NOURC) are described in its bylaws (NOURC 2010). 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. Species for which the NOURC seeks documentation (NOURC Review List) can be found at the NOU website www.NOUbirds.org. Starting in 2020, the NOURC decided to deal mainly with those species deemed as Accidental on the “Official List of the Birds of Nebraska.” Casual species and out-of-range species are now summarized in the “Seasonal Reports” of the …
2023 Limpkin At Crystal Cove Park, Dakota County, Ne, Bill Huser
2023 Limpkin At Crystal Cove Park, Dakota County, Ne, Bill Huser
Nebraska Bird Review
On the morning of October 7, 2023, I observed Nebraska’s second Limpkin (Aramus guarauna) at Crystal Cove Park in South Sioux City, and the bird was subsequently seen by several other observers throughout that afternoon. Photo and video records were obtained (https://ebird.org/checklist/S151656716). The summer and fall of 2023 brought fourteen sightings to Iowa, though it is impossible to determine how many birds were involved (eBird, 2023). One of those sightings occurred in the northwestern part of the state at Bacon Creek Park in Sioux City when a single Limpkin was independently reported by two observers on …
Summer Field Report, June–July 2023, W. Ross Silcock
Summer Field Report, June–July 2023, W. Ross Silcock
Nebraska Bird Review
There were no new species for Nebraska. This was also a lean season for records of species with few Nebraska records. Probably most significant were continuing Common Ravens in two Sioux Co locations, and possibly the first summer records of Baird’s Sparrow, a recording of the latter currently under NOURC review.
Within-state breeders nesting at new locations. There were several instances of nesting reported away from known breeding areas. These include documented records of first nesting Black-necked Stilts in Cherry Co, Least Terns off river at Offutt Base Lake in Sarpy Co, Mississippi Kite in Adams Co, Yellow-throated Vireo in …
Nou Spring Field Days And Annual Meeting. Valentine, May 5-7, 2023
Nou Spring Field Days And Annual Meeting. Valentine, May 5-7, 2023
Nebraska Bird Review
The NOU Annual Meeting and Spring Field Days was held in Valentine on May 5-7, 2023, with 50 in attendance. Our meetings and meals took place in the Niobrara Lodge. Field trips were led by Robin Harding, William Flack, T. J. Walker, Dave Heidt, Mark Brogie and Don and Janis Paseka. Destinations included Thomas Creek WMA, Cub Creek Recreation Area, the Niobrara Valley Preserve (TNC Property), the river road from Meadville (SW of Springview) to Norden, the Valentine City Park, Valentine Fish Hatchery, Ft. Niobrara NWR, Anderson Bridge WMA, the Minnechaduza Creek crossing north of Kilgore, Steer Creek, Merritt Reservoir, …
Spring Field Report, March - May 2023, W. Ross Silcock
Spring Field Report, March - May 2023, W. Ross Silcock
Nebraska Bird Review
First off, I want to reiterate that reports compiled for this Spring Seasonal Report are evaluated against current knowledge as presented in Birds of Nebraska-Online (“BONO”; https://birds.outdoornebraska.gov/). Species whose reports do not add new information on distribution, early or late dates, etc., are listed as having “Routine reports”. Please let me know at silcock@rosssilcock.com if you have information that is not in BONO, or if you have additions and/or corrections of information in BONO. Another reminder: if evidence of breeding is observed, please enter the appropriate descriptor in your eBird checklist under “Breeding and Behavior Code”. These descriptors can be …
The Nebraska Bird Review: A Magazine Of Ornithology Of The Nebraska Region. Volume 91 June 2023 Number 2
Nebraska Bird Review
Spring Field Report, March - May 2023 by W. Ross Silcock …46
Correction to 2022-2023 Christmas Bird Count tally ….70
Rethinking the Status and Temporal Occurrence of the American Woodcock in Nebraska because of its Unusual Life History by Joel G. Jorgensen and Stephen J. Brenner …71
NOU Spring Field Days and Annual Meeting in Valentine, May 5-7, 2023 …..84
Subscription and Organization Information …91
Rethinking The Status And Temporal Occurrence Of The American Woodcock In Nebraska Because Of Its Unusual Life History, Joel G. Jorgensen, Stephen J. Brenner
Rethinking The Status And Temporal Occurrence Of The American Woodcock In Nebraska Because Of Its Unusual Life History, Joel G. Jorgensen, Stephen J. Brenner
Nebraska Bird Review
Historical distribution and range expansion -- We reviewed existing information to evaluate conclusions by previous authors (e.g., Sharpe et al. 2001, Silcock and Jorgensen 2023) that woodcock have expanded their range west since settlement of Nebraska by Euro-Americans. We also provide additional context about the species’ distribution over time using regional resources.
Temporal occurrence and abundance -- We used data from woodcock outfitted with satellite transmitters 2021-2022 and compared it with occurrence data from two sources, eBird (eBird.org 2023) from all years through 2022 and the SFRs in the Nebraska Bird Review 1994–2019. We chose not to use SFR data …
Nigella Sative As An Antibiotic Alternative To Promote Growth And Enhance Health Of Broilers Challenged With Eimeria Maxima And Clostridium Perfringens, Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett S. Lumpkins, Zeynep B. Guzel-Seydim, Atif C. Seydim, Annel K. Greene, Xiuping Jiang
Nigella Sative As An Antibiotic Alternative To Promote Growth And Enhance Health Of Broilers Challenged With Eimeria Maxima And Clostridium Perfringens, Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett S. Lumpkins, Zeynep B. Guzel-Seydim, Atif C. Seydim, Annel K. Greene, Xiuping Jiang
Publications
The poultry industry has significant coccidiosis and necrotic enteritis (NE) challenges, leading to high mortality and unacceptable growth without antibiotic treatment. This research explored supplementing Nigella sativa (black cumin) seed oil in poultry feed to mitigate coccidiosis and prevent or lessen NE in broilers. In vivo studies consisted of 384 and 320 Cobb 500 male broiler chicks distributed in a randomized complete block experimental design for trials 1 and 2, respectively. The first trial compared 3 concentrations (1, 2, and 5 mL/kg) of black cumin seed oil (BCSO), and trial 2 compared 2 concentrations (2 and 5 mL/kg) BCSO, with …
A New Method For Reducing Salmonella In Poultry Meat, Regis Yizerwe
A New Method For Reducing Salmonella In Poultry Meat, Regis Yizerwe
Honors Theses
An important approach to decreasing the transmission of Salmonella into the food chain is to treat raw chicken after processing. This can be, and has been done, by using antibiotics and chemical disinfectants. Using antibiotics is not a viable option due to the issue of antimicrobial resistance. Although some chemical disinfectants have been used effectively, they are restricted due to the amounts that can be used safely, the acceptance of their use and resistance to implementation in various parts of the world. This study has revealed that using a naturally occurring saponin–Quillaja Saponaria– in small concentrations under certain conditions of …
2022-2023 Christmas Bird Counts, Don Paseka
2022-2023 Christmas Bird Counts, Don Paseka
Nebraska Bird Review
Sixteen counts were run in the 2022-2023 CBC season. Because of weather and rescheduling issues, the Crawford, Harrison, and Harlan County counts were cancelled. Eight of the counts were completed during the first week of the count period and the other eight were scattered throughout the remainder of the count period. An early December cold snap seemed to drive many of the birds south, but the weather on actual count days was fairly benign: mostly dry with an average high of 34˚F and an average low of 19˚F and with three circles reporting light snow. The total number of species …
Winter Field Report, Dec. 2022 - Feb. 2023, W. Ross Silcock
Winter Field Report, Dec. 2022 - Feb. 2023, W. Ross Silcock
Nebraska Bird Review
Since this is a Winter Seasonal Report, it seems appropriate to lead off with notable reports of occurrences that might be considered unexpected for midwinter, of which there were several. A range of species was involved, suggesting an encompassing cause such as climate change. Of interest were northerly wintering groups of waterfowl including Gadwall, Green-winged Teal, Canvasback, Ringnecked Duck, and Hooded Merganser. Reports of wintering Tundra Swans, Whitewinged Doves, and Lesser Goldfinches continue to increase, and numerous Redwinged Blackbirds in the northeast in midwinter were unexpected. Also quite unexpected were two Sandhill Cranes wintering in the east, the state’s first …
The Nebraska Bird Review Annual Color Photo Section
The Nebraska Bird Review Annual Color Photo Section
Nebraska Bird Review
Virginia Rail and chick, Washboard Road, North Platte, Lincoln Co., 28 June 2023. Photo by Boni Edwards.
American Coot, Eagle Scout Lake, Hall Co., April 2020. Photo by Colleen Childers.
Hudsonian Godwit, Marsh Wren Community Wetlands, Lancaster Co., 21 May 2022. Photo by Kirill Belashchenko.
American Avocet, N.P. Dodge Park, Omaha, Douglas Co., 2 May 2023. Photo by Thane Dinsdale
Female Cape May Warbler, photographer's backyard, Bellevue, Sarpy Co., 10 May 2022. Photo by Loren Padelford.
Male Cape May Warbler, Ft. Niobrara NWR, Cherry Co., 13 May 2022. Photo by Gordon Warrick.
Tennessee Warbler, Fontenelle Forest Wetlands, Sarpy Co., 24 …
Annual Treasurer's Report For 2022, Jan Johnson
Annual Treasurer's Report For 2022, Jan Johnson
Nebraska Bird Review
No abstract provided.
The Nebraska Bird Review: A Magazine Of Ornithology Of The Nebraska Region. Volume 91, Number 1. March 2023, Nebraska Ornithologists’ Union
The Nebraska Bird Review: A Magazine Of Ornithology Of The Nebraska Region. Volume 91, Number 1. March 2023, Nebraska Ornithologists’ Union
Nebraska Bird Review
Winter Field Report, Dec. 2022 - Feb. 2023 by W. Ross Silcock
Annual Color Photo Section
Annual Treasurer's Report for 2022 by Jan Johnson
Subscription and Organization Information
Impacts Of Eastern Redcedar Juniperus Virginiana L. On Avian Communities In Eastern South Dakota, Jay Holm
Impacts Of Eastern Redcedar Juniperus Virginiana L. On Avian Communities In Eastern South Dakota, Jay Holm
Schultz-Werth Award Papers
Eastern redcedar (ERC) (Juniperus virginiana L.) is the most rapidly spreading woody species in the Northern Great Plains due to fire suppression, planting in windbreaks, and overgrazing. Its encroachment has converted already fragmented and/or degraded grassland into woodland, and there is concern that it may negatively impact grassland-obligate/dependent avian species. In this study, I evaluated avian community composition between ERC-encroached and non-encroached grasslands in eastern South Dakota. Six sites each of encroached grassland and non-encroached grassland were selected. Bird surveys were conducted by performing point counts placed equidistantly along a transect for two years. Presence and abundance of each species …
A Multi-Isotope Approach Reveals Seasonal Variation In The Reliance On Marine Resources, Production Of Metabolic Water, And Ingestion Of Seawater By Two Species Of Coastal Passerine To Maintain Water Balance, Lucas Navarrete, Nico Lübcker, Felipe Alvarez, Roberto Nespolo, Juan Carlos Sanchez-Hernandez, Karin Maldonado, Zachary D. Sharp, John P. Whiteman, Seth D. Newsome, Pablo Sabat
A Multi-Isotope Approach Reveals Seasonal Variation In The Reliance On Marine Resources, Production Of Metabolic Water, And Ingestion Of Seawater By Two Species Of Coastal Passerine To Maintain Water Balance, Lucas Navarrete, Nico Lübcker, Felipe Alvarez, Roberto Nespolo, Juan Carlos Sanchez-Hernandez, Karin Maldonado, Zachary D. Sharp, John P. Whiteman, Seth D. Newsome, Pablo Sabat
Biological Sciences Faculty Publications
Tracing how free-ranging organisms interact with their environment to maintain water balance is a difficult topic to study for logistical and methodological reasons. We use a novel combination of triple-oxygen stable isotope analyses of water extracted from plasma (δ16O, δ17O, δ18O) and bulk tissue carbon (δ13C) and nitrogen (δ15N) isotopes of feathers and blood to estimate the proportional contribution of marine resources, seawater, and metabolic water used by two species of unique songbirds (genus Cinclodes) to maintain their water balance in a seasonal coastal environment. We …
Use Of Amino Acid Isotope Analysis To Investigate Capital Versus Income Breeding Strategies In Migratory Avian Species, Nico Lübcker, John P. Whiteman, Oliver N. Shipley, Keith A. Hobson, Seth D. Newsome
Use Of Amino Acid Isotope Analysis To Investigate Capital Versus Income Breeding Strategies In Migratory Avian Species, Nico Lübcker, John P. Whiteman, Oliver N. Shipley, Keith A. Hobson, Seth D. Newsome
Biological Sciences Faculty Publications
1. Income and capital breeding represent opposing ends of a continuum of reproductive strategies. Quantifying nutrient allocation to reproduction is challenging, but recent advances in compound-specific stable isotope analysis hold promise for tracing the source of individual compounds allocated to reproduction.
2. Here, we describe a novel approach of using measured carbon (δ13C) and nitrogen (δ15N) isotope values of individual amino acids (AAs) in pectoral muscle of egg-laying females and egg yolk as a useful tool to quantify the reliance on income versus capital breeding in migrating species. We used white-fronted (Anser albifrons frontalis), lesser snow (A. …
Territory Inheritance And The Evolution Of Cooperative Breeding In The Acorn Woodpecker, Walter D. Koenig, Joseph Haydock, Hannah L. Dugdale, Eric L. Walters
Territory Inheritance And The Evolution Of Cooperative Breeding In The Acorn Woodpecker, Walter D. Koenig, Joseph Haydock, Hannah L. Dugdale, Eric L. Walters
Biological Sciences Faculty Publications
There are two main hypotheses for why offspring in cooperatively breeding taxa delay dispersal and remain on their natal territory rather than disperse. First, ecological constraints may force offspring to remain on their natal territory until a reproductive opportunity presents itself in an otherwise saturated habitat. Alternatively, delaying dispersal and helping kin may increase an offspring's inclusive fitness. One means by which offspring might enhance their direct fitness by delaying dispersal is by inheriting breeding status on their natal territory. Such territory inheritance regularly occurs in acorn woodpeckers, Melanerpes formicivorus, a species whose social groups consist of a cooperatively …
Lifetime Inclusive Fitness Effects Of Cooperative Polygamy In The Acorn Woodpecker, Walter D. Koenig, Sahas Barve, Joseph Haydock, Eric L. Walters
Lifetime Inclusive Fitness Effects Of Cooperative Polygamy In The Acorn Woodpecker, Walter D. Koenig, Sahas Barve, Joseph Haydock, Eric L. Walters
Biological Sciences Faculty Publications
Although over 50 y have passed since W. D. Hamilton articulated kin selection and inclusive fitness as evolutionary explanations for altruistic behavior, quantifying inclusive fitness continues to be challenging. Here, using 30 y of data and two alternative methods, we outline an approach to measure lifetime inclusive fitness effects of cooperative polygamy (mate-sharing or cobreeding) in the cooperatively breeding acorn woodpecker Melanerpes formicivorus. For both sexes, the number of offspring (observed direct fitness) declined while the number of young parented by related cobreeders (observed indirect fitness effect) increased with cobreeding coalition size. Combining these two factors, the observed inclusive …
Unraveling A Paradox Of Habitat Relationships: Scale-Dependent Drivers Of Temporal Occupancy-Abundance Relationships In A Cooperatively Breeding Bird, Natasha D.G. Hagemeyer, Mario B. Pesendorfer, Walter D. Koenig, Eric L. Walters
Unraveling A Paradox Of Habitat Relationships: Scale-Dependent Drivers Of Temporal Occupancy-Abundance Relationships In A Cooperatively Breeding Bird, Natasha D.G. Hagemeyer, Mario B. Pesendorfer, Walter D. Koenig, Eric L. Walters
Biological Sciences Faculty Publications
Context Spatial occupancy and local abundance of species often positively covary, but the mechanisms driving this widespread relationship are poorly understood. Resource dynamics and habitat changes have been suggested as potential drivers, but long-term studies relating them to abundance and occupancy are rare. In this 34-year study of acorn woodpeckers (Melanerpes formicivorus), a cooperatively breeding species, we observed a paradoxical response to changes in habitat composition: despite a reduction in the availability of high-quality breeding habitat, the population increased considerably.
Objectives We investigated the role of annual variation in food availability and long-term changes in habitat composition as predictors …
The Nebraska Bird Review, Index To Volume 90
The Nebraska Bird Review, Index To Volume 90
Nebraska Bird Review
From: Abbott, Sydney 56
To: Zonotrichia leucophrys oriantha 66, 146
Schramm Park Fall Field Days, Janis Paseka
Schramm Park Fall Field Days, Janis Paseka
Nebraska Bird Review
The 2022 NOU Fall Field Days were held at Schramm Park State Recreation Area, south of Gretna in Sarpy County, on September 21-23, with approximately 60 in attendance. The meeting had been scheduled and cancelled twice in the two previous years due to coronavirus concerns. The total species count was 119, including a Sandhill Crane, Prairie Falcon (early for away from breeding area), Winter Wren, and early Snow Bunting. A Limpkin, which had been found in late June at Wehrspann Wetlands mitigation pond in Sarpy County and was still seen through late November in the Wehrspann Lake area, was not …
Remembering Clem Klaphake, Don Paseka
Remembering Clem Klaphake, Don Paseka
Nebraska Bird Review
Clement (Clem) Klaphake passed away on December 30, 2022, from complications of Parkinson’s disease, which he struggled with for several years. He was born in Melrose, Minnesota, in 1943 and grew up working on his parents’ dairy farm, which included the usual menagerie of other farm animals typical of that time. Perhaps it was the routine of milking twice a day, seven days a week, or the impressive scar on his leg from a boar tusk, but Clem was destined to leave the farm and become a life-long educator. ... After getting his degree in 1971, Clem was hired to …
The Nebraska Bird Review Volume 90 December 2022 Number 4
The Nebraska Bird Review Volume 90 December 2022 Number 4
Nebraska Bird Review
Fall Field Report, August - November 2022 by W. Ross Silcock ...126
Remembering Clem Klaphake by Don Paseka ...151
Schramm Park Fall Field Days, Sept. 21-23, 2022 ... 154
Index to Volume 90 ...159
Subscription and Organization Information …175
The Nebraska Bird Review, Subscription And Organization Information (December 2022)
The Nebraska Bird Review, Subscription And Organization Information (December 2022)
Nebraska Bird Review
The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists’ Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $25 in the United States and $35 in all other countries, payable in advance. Single copies are $7 each, postpaid, in the United States and $9 elsewhere. Send orders for back issues to Anita Breckbill, NOU Librarian, c/o Music Library, WMB 30, University of Nebraska, Lincoln, NE 68588-0101 (or at the email address listed below).
Memberships in the NOU (on a calendar-year basis only): Active …