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Articles 1141 - 1170 of 10522

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Defining An Epidemiological Landscape That Connects Movement Ecology To Pathogen Transmission And Pace-Of-Life, Kezia Manlove, Mark Wilber, Lauren White, Guillaume Bastille-Rousseau, Anni Yang, Marie L.J. Gilbertson, Meggan E. Craft, Paul C. Cross, George Wittemyer, Kim M. Pepin Aug 2022

Defining An Epidemiological Landscape That Connects Movement Ecology To Pathogen Transmission And Pace-Of-Life, Kezia Manlove, Mark Wilber, Lauren White, Guillaume Bastille-Rousseau, Anni Yang, Marie L.J. Gilbertson, Meggan E. Craft, Paul C. Cross, George Wittemyer, Kim M. Pepin

United States Department of Agriculture Wildlife Services: Staff Publications

Pathogen transmission depends on host density, mobility and contact. These components emerge from host and pathogen movements that themselves arise through interactions with the surrounding environment. The environment, the emergent host and pathogen movements, and the subsequent patterns of density, mobility and contact form an ‘epidemiological landscape’ connecting the environment to specific locations where transmissions occur. Conventionally, the epidemiological landscape has been described in terms of the geographical coordinates where hosts or pathogens are located. We advocate for an alternative approach that relates those locations to attributes of the local environment. Environmental descriptions can strengthen epidemiological forecasts by allowing for …

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Ecological And Phenotypic Diversification After A Continental Invasion In Neotropical Freshwater Stingrays, Matthew Kolmann, Fernando Pl Marques, James C. Weaver, Mason N. Dean, Joao Pedro Fontenelle, Nathan R. Lovejoy Aug 2022

Ecological And Phenotypic Diversification After A Continental Invasion In Neotropical Freshwater Stingrays, Matthew Kolmann, Fernando Pl Marques, James C. Weaver, Mason N. Dean, Joao Pedro Fontenelle, Nathan R. Lovejoy

Faculty and Staff Scholarship

Habitat transitions are key potential explanations for why some lineages have diversified and others have not—from Anolis lizards to Darwin's finches. The ecological ramifications of marine-to-freshwater transitions for fishes suggest evolutionary contingency: some lineages maintain their ancestral niches in novel habitats (niche conservatism), whereas others alter their ecological role. However, few studies have considered phenotypic, ecological, and lineage diversification concurrently to explore this issue. Here, we investigated the macroevolutionary history of the taxonomically and ecologically diverse Neotropical freshwater river rays (subfamily Potamotrygoninae), which invaded and diversified in the Amazon and other South American rivers during the late Oligocene to early …

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The Role Of Temperature Variation On Macrophage Physiology And Function In Vitro In Mice, Chicken, And Fish, Intisar Abdullah Hassan Aug 2022

The Role Of Temperature Variation On Macrophage Physiology And Function In Vitro In Mice, Chicken, And Fish, Intisar Abdullah Hassan

Graduate Theses and Dissertations

Fever is an essential component of the immune response. Baseline body temperatures vary in different species, and fever represents increased temperature over baseline. Fever initiates and enhances immune responses as well as creates an environment in which the body has advantages over pathogens. Macrophages are often the first line of cells that come in contact with pathogens, asthey reside in and traffic through tissues. They are important for their engulfment of pathogens that results in the digestion of the pathogen, and they also produce nitric oxide and cytokines that contribute to immune responses in a variety of ways, including initiating …

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Conservation Of Open-Canopy-Associated Wildlife: Multi-Scale Management Impacts On Imperiled Herpetofauna, Ethan Joseph Royal Aug 2022

Conservation Of Open-Canopy-Associated Wildlife: Multi-Scale Management Impacts On Imperiled Herpetofauna, Ethan Joseph Royal

Graduate Theses and Dissertations

The loss of open-canopy ecosystems throughout North America has precipitated declines in reptile and amphibian species associated with these habitat types. Current efforts to restore open-canopy ecosystems are underway in many areas, but the local distributions of, habitat characteristics required by and the effects of management actions on many herpetofauna species are poorly understood or entirely unknown. Research examining relationships among herpetofauna and their environments is often complicated by the extremely low detectability seen in many studies. We used landscape-scale, assemblage-level surveys to investigate the occupancy patterns and habitat associations of open-canopy-associated herpetofauna in two regions, as well as gain …

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Effect Of Sensory Additives On Sow Lactation Performance, Subsequent Reproductive Performance, And Nursey Pig Performance, Nathan E. Davis Aug 2022

Effect Of Sensory Additives On Sow Lactation Performance, Subsequent Reproductive Performance, And Nursey Pig Performance, Nathan E. Davis

Graduate Theses and Dissertations

Maximizing nutrient intake during lactation is vital to sow performance as well as litter performance. The aim of these studies was to evaluate the impact of a sensory additive on sow lactation performance and nursery pig performance. Five groups of sows were farrowed, three during winter (October, December and January) and two during summer months (June, July, August). Sows were weighed, and back fat depth was measured, at 110 d of gestation prior to entering the lactation room, and again at weaning. The sows were blocked by parity, and then allotted by BW at d 110 to Control or 0.075% …

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Optimising Response To An Introduction Of African Swine Fever In Wild Pigs, Kim M. Pepin, Vienna R. Brown, Anni Yang, James C. Beasley, Raoul Boughton, Kurt C. Vercauteren, Ryan S. Miller, Sarah N. Bevins Jul 2022

Optimising Response To An Introduction Of African Swine Fever In Wild Pigs, Kim M. Pepin, Vienna R. Brown, Anni Yang, James C. Beasley, Raoul Boughton, Kurt C. Vercauteren, Ryan S. Miller, Sarah N. Bevins

United States Department of Agriculture Wildlife Services: Staff Publications

African swine fever virus (ASFv) is a virulent pathogen that threatens domestic swine industries globally and persists in wild boar populations in some countries. Persistence in wild boar can challenge elimination and prevent disease-free status, making it necessary to address wild swine in proactive response plans. In the United States, invasive wild pigs are abundant and found across a wide range of ecological conditions that could drive different epidemiological dynamics among populations. Information on the size of the control areas required to rapidly eliminate the ASFv in wild pigs and how this area should change with management constraints and local …

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Genetic Protocols For Dna Extraction From White-Tailed Deer Cast Antlers To Confirm Individuality, Zach Carter, Brian C. Peterson, Casey W. Schoenebeck, Kimberly A. Carlson Jul 2022

Genetic Protocols For Dna Extraction From White-Tailed Deer Cast Antlers To Confirm Individuality, Zach Carter, Brian C. Peterson, Casey W. Schoenebeck, Kimberly A. Carlson

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

White-tailed deer (Odocoileus virginianus) are the most sought-after deer species in America. The antlers of mammals, such as deer, are one of the fastest regenerative tissues in the world and are grown and naturally cast every year. Research on cast antlers have been used for a variety of purposes including population comparisons and impacts of deer health due to climatic stressors. When investigating cast antlers, it is important to confirm individuality of match sets in addition to antlers of the same individual between years. Therefore, individuality must be confirmed genetically, and protocols must be developed and established to …

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Reanalysis Of Teruelius And Grosphus (Scorpiones: Buthidae) With Descriptions Of Two New Species, Graeme Lowe, František Kovařík Jul 2022

Reanalysis Of Teruelius And Grosphus (Scorpiones: Buthidae) With Descriptions Of Two New Species, Graeme Lowe, František Kovařík

Euscorpius

No abstract provided.

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Amplification Of Black Vulture (Coragyps Atratus) Dna From Regurgitated Food Pellets, Daniel R. Taylor, Bryan M. Kluever, John S. Humphrey, Iona M. Hennessy, Amber Sutton, William E. Bruce, Antoinette J. Piaggio Jul 2022

Amplification Of Black Vulture (Coragyps Atratus) Dna From Regurgitated Food Pellets, Daniel R. Taylor, Bryan M. Kluever, John S. Humphrey, Iona M. Hennessy, Amber Sutton, William E. Bruce, Antoinette J. Piaggio

United States Department of Agriculture Wildlife Services: Staff Publications

Studies that rely on noninvasive collection of DNA for birds often use feces or feathers. Some birds, such as vultures, regurgitate undigested matter in the form of pellets that are commonly found under roost sites. Our research demonstrates that regurgitated pellets are a viable, noninvasive source of DNA for molecular ecology studies of vultures. Our objectives were to amplify 5 microsatellite loci designed for distinguishing Turkey Vultures (Cathartes aura) and Black Vultures (Coragyps atratus) in a single, multiplexed PCR, and to determine how long the target nuclear DNA persists after a vulture pellet is regurgitated and …

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Review Of The Cloacininae Stossich (Nemata: Strongyloidea) From Australasian Marsupials (Marsupialia: Macropodoidea), Ian Beveridge, Lesley R. Smales Jul 2022

Review Of The Cloacininae Stossich (Nemata: Strongyloidea) From Australasian Marsupials (Marsupialia: Macropodoidea), Ian Beveridge, Lesley R. Smales

MANTER: Journal of Parasite Biodiversity

The nematode sub-family Cloacininae from Australasian macropodoid marsupials is reviewed. Keys are provided to all genera and species currently known. A revised definition of the sub-family and detailed generic diagnoses are provided. For each species, full synonymies and literature citations are included along with known hosts, geographical distributions and associated DNA sequence data. A brief morphological synopsis of each species is provided together with illustrations of the morphological features needed for identification using the keys. Due to uncertainties relating to the division of the sub-family into tribes, only the nominal allocation to tribe is provided. Two new genera are erected, …

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Abundance, Site-Fidelity, And Association Patterns Of Coastal Bottlenose Dolphins (Tursiops Truncatus) Off Southeast Florida, Graysen D. Boehning Jul 2022

Abundance, Site-Fidelity, And Association Patterns Of Coastal Bottlenose Dolphins (Tursiops Truncatus) Off Southeast Florida, Graysen D. Boehning

All HCAS Student Capstones, Theses, and Dissertations

The coastal bottlenose dolphin is well studied throughout its natural range, however, most of the study areas comprised wide, well-protected habitats such as bays and estuaries, and not narrow coastal sandbanks. This study identifies a residential group of coastal bottlenose dolphins utilizing the narrow sandbanks within the Northwestern Atlantic waters off the coast of Palm Beach County, Florida, USA. From 2014-2020, 313 boat surveys were conducted, and 585 individual dolphins were identified using photo-ID. Twenty-four animals were determined to be full-time and 66 animals were determined to be part-time residents. Full-time and part-time residents associated in three social tribes, with …

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Evolution Of Freshwater Fishes In The Northern Neotropics, Diego Elias Jul 2022

Evolution Of Freshwater Fishes In The Northern Neotropics, Diego Elias

LSU Doctoral Dissertations

The northern Neotropics (NN) represents one of the most geologically-complex regions on the planet, composed of island-like geological blocks that have undergone multiple episodes of isolation and connectivity at various geological times. The riverscapes of the NN harbor a unique assemblage of freshwater fishes. In contrast to the freshwaters systems of South America, which are dominated by ostariophysan lineages, the aquatic systems of the NN are dominated by lineages of two families: Cichlidae (cichlids) and Poeciliidae (livebearers). It has been suggested that the geologically complex nature of the region allowed ancestors of cichlids and livebearers to colonize and radiate within …

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Seasonal Climatic Niche And Migration Movements Of Double-Crested Cormorants, D. Tommy King, Guiming Wang, Fred L. Cunningham Jul 2022

Seasonal Climatic Niche And Migration Movements Of Double-Crested Cormorants, D. Tommy King, Guiming Wang, Fred L. Cunningham

United States Department of Agriculture Wildlife Services: Staff Publications

Avian migrants are challenged by seasonal adverse climatic conditions and energetic costs of long-distance flying. Migratory birds may track or switch seasonal climatic niche between the breeding and non-breeding grounds. Satellite tracking enables avian ecologists to investigate seasonal climatic niche and circannual movement patterns of migratory birds. The Double-crested Cormorant (Nannopterum auritum, hereafter cormorant) wintering in the Gulf of Mexico (GOM) migrates to the Northern Great Plains and Great Lakes and is of economic importance because of its impacts on aquaculture. We tested the climatic niche switching hypothesis that cormorants would switch climatic niche between summer and winter …

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Is Chimpanzee (Pan Troglodytes) Wounding Frequency Affected By The Presence Versus Absence Of Visitors? A Multi-Institutional Study, Robin Elana Salak, Christina Cloutier Barbour Jul 2022

Is Chimpanzee (Pan Troglodytes) Wounding Frequency Affected By The Presence Versus Absence Of Visitors? A Multi-Institutional Study, Robin Elana Salak, Christina Cloutier Barbour

Student Published Works

Visitor effect studies have had inconsistent results, due in part to the inability to control for all confounding variables such as time of day, seasonal weather patterns, and so forth. This study represents the first instance where chimpanzee (Pan troglodytes) wounding frequencies were investigated across extensive time periods in the presence and complete absence of visitors, thus eliminating many visitor-related variables. Additional variables were eliminated through the zoo selection process, based on institutional responses to a 29-question survey, providing a novel approach to the question of visitor effects. The aim of this study was to determine if visitors …

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Comparative Susceptibility Of Eastern Cottontails And New Zealand White Rabbits To Classical Rabbit Haemorrhagic Disease Virus (Rhdv) And Rhdv2, Fawzi Mohamed, Thomas Gidlewski, Mary L. Berninger, Heather M. Petrowski, Alexa J. Bracht, Carla Bravo De Rueda, Roger W. Barrette, Meredith Grady, Emily S. O'Hearn, Charles E. Lewis, Karen E. Moran, Tracy L. Sturgill, Lorenzo Capucci, J. Jeffrey Root Jul 2022

Comparative Susceptibility Of Eastern Cottontails And New Zealand White Rabbits To Classical Rabbit Haemorrhagic Disease Virus (Rhdv) And Rhdv2, Fawzi Mohamed, Thomas Gidlewski, Mary L. Berninger, Heather M. Petrowski, Alexa J. Bracht, Carla Bravo De Rueda, Roger W. Barrette, Meredith Grady, Emily S. O'Hearn, Charles E. Lewis, Karen E. Moran, Tracy L. Sturgill, Lorenzo Capucci, J. Jeffrey Root

United States Department of Agriculture Wildlife Services: Staff Publications

Rabbit haemorrhagic disease virus (RHDV) is associated with high morbidity and mortality in the European rabbit (Oryctolagus cuniculus). In 2010, a genetically distinct RHDV named RHDV2 emerged in Europe and spread to many other regions, including North America in 2016. Prior to this study it was unknown if eastern cottontails (ECT(s); Sylvilagus floridanus), one of the most common wild lagomorphs in the United States, were susceptible to RHDV2. In this study, 10 wild-caught ECTs and 10 New Zealand white rabbits (NZWR(s); O. cuniculus) were each inoculated orally with either RHDV (RHDVa/GI.1a; n = 5 per species) or RHDV2 (a recombinant …

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Solar Radiation And Soil Moisture Drive Tropical Forest Understory Responses To Experimental And Natural Hurricanes, J. Aaron Hogan, Joanne M. Sharpe, Ashley Van Beusekom, Sarah Stankavich, Samuel Matta Carmona, John E. Bithorn, Jamarys Torres-Díaz, Grizelle González, Jess K. Zimmerman, Aaron B. Shiels Jul 2022

Solar Radiation And Soil Moisture Drive Tropical Forest Understory Responses To Experimental And Natural Hurricanes, J. Aaron Hogan, Joanne M. Sharpe, Ashley Van Beusekom, Sarah Stankavich, Samuel Matta Carmona, John E. Bithorn, Jamarys Torres-Díaz, Grizelle González, Jess K. Zimmerman, Aaron B. Shiels

United States Department of Agriculture Wildlife Services: Staff Publications

Tropical forest understory regeneration occurs rapidly after disturbance with compositional trajectories that depend on species availability and environmental conditions. To predict future tropical forest regeneration dynamics, we need a deeper understanding of how pulse disturbance events, like hurricanes, interact with environmental variability to affect understory demography and composition. We examined fern and sapling mortality, recruitment, and community composition in relation to solar radiation and soil moisture using 17 years of forest dynamics data (2003–2019) from the Canopy Trimming Experiment in the Luquillo Experimental Forest, Puerto Rico. Solar radiation increased 150% and soil moisture increased 40% following canopy trimming of experimental …

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Scalloped Hammerhead (Sphyrna Lewini) Jaw, Daria W. Ghegan, Brittney Dreyer, David Kerstetter Jun 2022

Scalloped Hammerhead (Sphyrna Lewini) Jaw, Daria W. Ghegan, Brittney Dreyer, David Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Jaw prep from Sphyrna lewini (Scalloped Hammerhead) obtained from the NSU Fisheries and Avian Ecology

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The Mayfly Newsletter, Donna Giberson Jun 2022

The Mayfly Newsletter, Donna Giberson

The Mayfly Newsletter

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

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Scorpions Of China: An Updated Checklist With Comments On Some Taxonomic Issues (Arachnida: Scorpiones), Victoria Tang Jun 2022

Scorpions Of China: An Updated Checklist With Comments On Some Taxonomic Issues (Arachnida: Scorpiones), Victoria Tang

Euscorpius

An updated checklist of scorpions of China (52 species belonging to 13 genera and six families) is provided, with Chinese name equivalents and an illustrated map of all localities. Colored photos of the Chinese population of Mesobuthus thersites (C. L. Koch, 1839) and one Olivierus sp. in vivo habitus are provided for the first time. The recent taxonomic changes are summarized. The monotypic genus Tibetiomachus (Hormuridae) with its single species T. himalayensis is considered a nomen dubium. The validity of the previously synonymized Scorpiops atomatus Qi et al., 2005 and S. validus (Di et al., 2010) (Scorpiopidae) is questioned, …

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Oregon State Rank Assessment For Moose (Alces Alces), Eleanor P. Gaines Jun 2022

Oregon State Rank Assessment For Moose (Alces Alces), Eleanor P. Gaines

Institute for Natural Resources Publications

No abstract provided.

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A New Species Of Chiromachetes Pocock, 1899 (Scorpiones: Hormuridae) From Southern Western Ghats, India, Akshay Khandekar, Tejas Thackeray, Swapnil Pawar, Satpal Gangalmale, Vivek Waghe Jun 2022

A New Species Of Chiromachetes Pocock, 1899 (Scorpiones: Hormuridae) From Southern Western Ghats, India, Akshay Khandekar, Tejas Thackeray, Swapnil Pawar, Satpal Gangalmale, Vivek Waghe

Euscorpius

No abstract provided.

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Critical Corridor: Survey Of Predator Occurrence And Habitat Use In A Threatened Rainforest Protected Area: Comatsa-Sud And Marojejy National Park, Madagascar, Patrick H. Ross Jun 2022

Critical Corridor: Survey Of Predator Occurrence And Habitat Use In A Threatened Rainforest Protected Area: Comatsa-Sud And Marojejy National Park, Madagascar, Patrick H. Ross

Theses

Madagascar is a nation praised for its floral and faunal endemism and biodiversity. Among the island nation’s most emblematic fauna are its native mammalian carnivores; they are members of the threatened and endemic Eupleridae family. The Corridor of Marojejy – Anjanaharibe Sud – Tsaratanana (COMATSA) is a system of forest protected areas in which three large protected areas are connected in northern Madagascar: Tsaratanana Reserve, Anjanaharibe Sud Special Reserve and Marojejy National Park which is also a UNESCO World Heritage site. COMATSA is a newly protected and currently threatened corridor system that lacks detailed surveys and assessments of its native …

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Genomic Tools Reveal Complex Social Organization Of An Invasive Large Mammal (Sus Scrofa), Chelsea L. Titus, Courtney F. Bowden, Timothy J. Smyser, Stephen L. Webb, James C. Beasley Jun 2022

Genomic Tools Reveal Complex Social Organization Of An Invasive Large Mammal (Sus Scrofa), Chelsea L. Titus, Courtney F. Bowden, Timothy J. Smyser, Stephen L. Webb, James C. Beasley

United States Department of Agriculture Wildlife Services: Staff Publications

A comprehensive understanding of sociality in wildlife is vital to optimizing conservation and management efforts. However, sociality is complicated, especially for widely distributed species that exhibit substantive behavioral plasticity. Invasive wild pigs (Sus scrofa), often representing hybrids of European wild boar and domestic pigs, are among the most adaptable and widely distributed large mammals. The social structure of wild pigs is believed to be similar to European wild boar, consisting of matriarchal groups (sounders) and solitary males. However, wild pig social structure is understudied and largely limited to visual observations. Using a hierarchical approach, we incorporated genomic tools …

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A New Species Of Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) From Southeastern Plains Of Tamil Nadu, India, Shubhankar Deshpande, Gaurang Gowande, Deshabhushan Bastawade, Shauri Sulakhe Jun 2022

A New Species Of Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) From Southeastern Plains Of Tamil Nadu, India, Shubhankar Deshpande, Gaurang Gowande, Deshabhushan Bastawade, Shauri Sulakhe

Euscorpius

We here describe a new species of Isometrus Ehrenberg, 1828 from the southeastern plains of Tamil Nadu, India, which is known only from its type locality, Chengalpattu. The new species was recovered as sister to Isometrus nakshatra based on a molecular phylogeny inferred from COI and 16S mitochondrial genes. Sequence divergence between the new species and all the Indian congeners was 12.6–15.7 % for COI and 12.2–14.4 % for 16S. The new species can also be differentiated from all the Indian congeners based on the following set of characters: surface of carapace with mixed (coarse and fine) and dense granulation; …

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Subscription And Organization Information (June 2022) Jun 2022

Subscription And Organization Information (June 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 …

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Remembering Lanny Randolph, William Flack Jun 2022

Remembering Lanny Randolph, William Flack

Nebraska Bird Review

Nebraska's birding community suffered a great loss on June 17, 2022, with the death of Lanny Randolph, an enthusiastic birder and a good friend to all of us. ... Lanny ... resolutely continued birding. In May 2022, he was able to attend the NOU meeting in Gering, and to see many of his longtime friends for the first time since the COVID pandemic. But a month later, on June 17, he was taken from us. Lanny's no longer physically present among us. But for those of us who knew him, he'll always be there in our memories, an invisible presence …

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Spring Field Report, March-May 2022, W. Ross Silcock Jun 2022

Spring Field Report, March-May 2022, W. Ross Silcock

Nebraska Bird Review

This spring there was a large number of interesting reports generated by active field observers, particularly in the west, where our knowledge continues to be broadened in all aspects. The main takeaway this spring was the inordinate plethora of species that matched or exceeded early arrival dates listed in BONO. There were no fewer than 70 species in this category, involving most families and genera, suggesting some overall influence on migration timing. Perhaps exceptions to these early arrivals were some lingering waterfowl and gulls although terns arrived early. Fully 50 of the early arrivers were passerines, notably including nine species …

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Remembering Rosalind Morris Jun 2022

Remembering Rosalind Morris

Nebraska Bird Review

Longtime NOU member Mary Rosalind Morris passed away in Lincoln on March 26, 2022, at the age of 101. ... Her membership in the NOU spanned decades, and she held the offices of vice president (1960), president (1975), librarian (1988-1989) and NBR editor (1992-1997). She was also a member of the Friends of Wilderness Park, Lincoln Naturalist Club, Wachiska Audubon, and the Nature Conservancy. For many years while on walks with her dog she picked up litter in Lincoln parks and on campus and received several environmental stewardship awards for her efforts. She is remembered by those who knew her …

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Nou Spring Field Days And Annual Meeting, Gering, May 20-22, 2022, Janis Paseka Jun 2022

Nou Spring Field Days And Annual Meeting, Gering, May 20-22, 2022, Janis Paseka

Nebraska Bird Review

The NOU Annual Meeting and Spring Field Days, organized by Kathy DeLara, Robin Harding, Jan Johnson, Alice Kenitz and Ruthie Stearns, was held in Gering on May 20-22, 2022, with 64 in attendance. This was the first time the organization had been able to get together since the meeting in Imperial in September of 2019. Our spring and fall meetings in 2020 and 2021 were cancelled due to the COVID-19 pandemic. Our meetings and meals took place in the Gering Civic Center. The weekend weather varied from cool and sunny to windy, snowy, or rainy, but the total species list …

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Rare Dark American Kestrel – Melanistic Or Sooty?, Joseph A. Gubanyi, Joel Rathe, Camden Sesna Jun 2022

Rare Dark American Kestrel – Melanistic Or Sooty?, Joseph A. Gubanyi, Joel Rathe, Camden Sesna

Nebraska Bird Review

On April 13 in Seward County, we noticed a dark bird flying relatively low over fields east of Seward near 224th and Bluff Rd. Initially, because of its size, dark coloration and pointed wingtips, we were unsure of its identification and followed the bird to get better looks and identify it. We were able to observe and photograph the bird perched (Figure 1). We also observed the bird hovering and diving to the ground multiple times in search of prey. After better looks, based on size, wing shape, hooked beak, claws, and behavior (repeated hovering over field), we concluded the …

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