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Articles 3811 - 3840 of 36478

Full-Text Articles in Animal Sciences

Insect Availability And Parental Care Behavior In A Common Bird, Cole Bourque Dec 2022

Insect Availability And Parental Care Behavior In A Common Bird, Cole Bourque

Symposium of Student Scholars

Populations of aerially insectivorous birds are declining throughout North America. Urbanization may indirectly contribute to this decline through its negative effects on populations of insects, an important food source in insectivores' diets, where low insect availability may be especially challenging for birds during breeding. How fluctuations in insect populations impact various species at higher trophic levels is an important area of current study for future conservation biology. Here, we examine whether nestling provisioning, brooding and guarding behaviors in a breeding bird—the European starling (Sturnus vulgaris)—may be altered depending on the relative insect availability in the environment. We found …


Preliminary Analysis Of The Effects Of Non-Target Supplemental Feeding On Camera Trap Captures Of Small Mammals In Central Georgia, Raena Mccown, Travis Cunningham, Alfred J. Mead Dec 2022

Preliminary Analysis Of The Effects Of Non-Target Supplemental Feeding On Camera Trap Captures Of Small Mammals In Central Georgia, Raena Mccown, Travis Cunningham, Alfred J. Mead

Georgia Journal of Science

Supplemental bird feeding is a widespread hobby throughout western culture. Although it brings joy to many people, bird feeding has been shown to have potentially negative effects on local bird populations and small mammalian species. To study the differences in local occurrence of native small mammalian species around bird feeders and in more distant settings, six camera traps were placed in a rural residential area in Putnam County, Georgia. Three cameras were placed facing bird feeders and three placed a minimum of 60 m away from the feeders. Species presence was recorded three days a week from 12:00 am Monday …


Exposure Of Egyptian Rousette Bats (Rousettus Aegyptiacus) And A Little Free-Tailed Bat (Chaerephon Pumilus) To Alphaviruses In Uganda, Rebekah C. Kading, Erin M. Borland, Eric C. Mossel, Teddy Nakayiki, Betty Nalikka, Jeremy P. Ledermann, Mary B. Crabtree, Nicholas A. Panella, Luke Nyakarahuka, Amy T. Gilbert, Julian C. Kerbis-Peterhans, Jonathan S. Towner, Brian R. Amman, Tara K. Sealy, Barry R. Miller, Julius J. Lutwama, Robert M. Kityo, Ann M. Powers Dec 2022

Exposure Of Egyptian Rousette Bats (Rousettus Aegyptiacus) And A Little Free-Tailed Bat (Chaerephon Pumilus) To Alphaviruses In Uganda, Rebekah C. Kading, Erin M. Borland, Eric C. Mossel, Teddy Nakayiki, Betty Nalikka, Jeremy P. Ledermann, Mary B. Crabtree, Nicholas A. Panella, Luke Nyakarahuka, Amy T. Gilbert, Julian C. Kerbis-Peterhans, Jonathan S. Towner, Brian R. Amman, Tara K. Sealy, Barry R. Miller, Julius J. Lutwama, Robert M. Kityo, Ann M. Powers

United States Department of Agriculture Wildlife Services: Staff Publications

The reservoir for zoonotic o’nyong-nyong virus (ONNV) has remained unknown since this virus was first recognized in Uganda in 1959. Building on existing evidence for mosquito bloodfeeding on various frugivorous bat species in Uganda, and seroprevalence for arboviruses among bats in Uganda, we sought to assess if serum samples collected from bats in Uganda demonstrated evidence of exposure to ONNV or the closely related zoonotic chikungunya virus (CHIKV). In total, 652 serum samples collected from six bat species were tested by plaque reduction neutralization test (PRNT) for neutralizing antibodies against ONNV and CHIKV. Forty out of 303 (13.2%) Egyptian rousettes …


Mahi Mahi (Coryphaena Hippurus) Neurocranium, Logan Exton, David William Kerstetter Dec 2022

Mahi Mahi (Coryphaena Hippurus) Neurocranium, Logan Exton, David William Kerstetter

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

Neurocranium from 13.335 cm total length (TL) Mahi Mahi (Coryphaena hippurus), collected from Fort Lauderdale on 04/11/2022 by Logan Exton


Toro (Priacanthus Arenatus) Neurocranium, Nicole Mozer, David Kerstetter Dec 2022

Toro (Priacanthus Arenatus) Neurocranium, Nicole Mozer, David Kerstetter

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

Neurocranium from 7.8 cm

Toro - Priacanthus arenatus

Collected from Kerstetter Fisheries & Avian Ecology Lab on 9/21/2022 by Nicole Mozer & David Kerstetter


Crustacean Assemblage Structure Over The Charlie-Gibbs Fracture Zone Of The Mid-Atlantic Ridge Collected During The 2009 Henry B. Bigelow Expedition, Kathryn Medina Dec 2022

Crustacean Assemblage Structure Over The Charlie-Gibbs Fracture Zone Of The Mid-Atlantic Ridge Collected During The 2009 Henry B. Bigelow Expedition, Kathryn Medina

All HCAS Student Capstones, Theses, and Dissertations

The Charlie Gibbs Fracture Zone (CGFZ) consists of two nearly parallel fracture transform faults that intersect the Mid-Atlantic Ridge (MAR) axis. This area has high primary productivity and biomass levels due to the topography and water. A predominant hydrographic feature of the MAR is the Sub-Polar Front (SPF) which runs along the southern edge of the CGFZ and is known as a biogeographical boundary for multiple species. As part of The Census of Marine Life project Patterns and Processes of the Ecosystem of the northern Mid-Atlantic (MAR-ECO), this study analyzed the abundance and distribution patterns of the CGFZ crustacean community …


Scamp Grouper, (Mycteroperca Phenax) Neurocranium, Liam L. Wilcox, David William Kerstetter Dec 2022

Scamp Grouper, (Mycteroperca Phenax) Neurocranium, Liam L. Wilcox, David William Kerstetter

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

Neurocranium from 5.40 cm; total length unknown. Scamp Grouper, (Mycteroperca phenax)

Specimen received from Kerstetter's lab


Aquaculture In Africa: Aquatic Animal Welfare, Impact On The Environment And The Sustainability Of The Sector, Mwenda M. Mbaka, Janice H. Cox, Stephen Ronan Dec 2022

Aquaculture In Africa: Aquatic Animal Welfare, Impact On The Environment And The Sustainability Of The Sector, Mwenda M. Mbaka, Janice H. Cox, Stephen Ronan

Aquaculture

The African aquaculture sector recorded the fastest growth in the world between 2006-2018, averaging 10% or more, and is expected to partially fill the growing fish supply-demand gap up to 2063. In 2018, there were about 1.2 million aquafarmers across the continent, an increase from 920 thousand in 2014. According to the African Development Bank, expansion of aquaculture in Africa is hampered by "the overwhelming predominance of tilapia farming, which relies heavily on the production of fingerlings from a limited number of genetically improved strains that are resistant to the many diseases affecting this species, and on the production of …


Developing Novel Remote Camera Approaches To Assess And Monitor The Population Status Of Australian Sea Lions, Mathew Hourston, Daniela Waltrick, Stuart Blight, Ainslie Denham, Alex Hesp, Steve Taylor Dec 2022

Developing Novel Remote Camera Approaches To Assess And Monitor The Population Status Of Australian Sea Lions, Mathew Hourston, Daniela Waltrick, Stuart Blight, Ainslie Denham, Alex Hesp, Steve Taylor

Fisheries Research Reports

This project trialled the use of remote cameras to monitor the relative abundance of Australian sea lions (ASLs, Neophoca cinerea) at three Western Australian (WA) breeding colonies. The research was undertaken by the Department of Primary Industries and Regional Development (DPIRD) to assess whether the analysis of camera footage could be used to estimate ASL relative abundance, providing an alternative to the traditional “boots on the ground” approach (hereon in “BoG”) of visiting colonies to count animals. This report outlines the strengths and limitations of this novel approach rather than providing an update on the population status of ASLs. …


Chelonia Mydas Cranium, Celina Nelson-Jordan, Bryan Weber Dec 2022

Chelonia Mydas Cranium, Celina Nelson-Jordan, Bryan Weber

Hirons Field Techniques

Chelonia mydas Cranium - Green Sea Turtle skull with jaw positioned agape for detail


Geographic Distribution: Anolis Sagrei (Brown Anole). Usa: Arizona., Addie Leimroth, Louis A. Somma, Dyrana N. Russell, Logan P. Cutts, Mason Ryan, Randall D. Babb, Karen E. Hajek, Andrew T. Holycross Dec 2022

Geographic Distribution: Anolis Sagrei (Brown Anole). Usa: Arizona., Addie Leimroth, Louis A. Somma, Dyrana N. Russell, Logan P. Cutts, Mason Ryan, Randall D. Babb, Karen E. Hajek, Andrew T. Holycross

Papers in Herpetology

We discovered the first distributional records for the exotic, Caribbean lizard, Anolis sagrei (Brown Anole), in Arizona.


Occurrence Of Bat Species At Water Sources In Two Urban Parks In Nashville, Tennessee, Maya Kiev, Austin Farris, Evan Mason Dec 2022

Occurrence Of Bat Species At Water Sources In Two Urban Parks In Nashville, Tennessee, Maya Kiev, Austin Farris, Evan Mason

Science University Research Symposium (SURS)

Animal behavioral patterns can shift due to anthropogenic factors related to pollution, human impact on flora/fauna, and changes in local water sources. While sound pollution can impact the occurrence of bats in urban areas, other factors could also influence bat behavior. This study examines bat occurrence near a water source at two urban parks in Nashville, Tennessee: one is in a highly trafficked area while the other is secluded and bordered by a suburban neighborhood. Both parks have small ponds, numerous trees, and open green spaces. Echo Meter Touch 2 devices were used to capture bat echolocation data at each …


Environmental Influences On The Growth Of Inland Cisco Populations In Three Minnesota Sentinel Lakes, Edward Carlson Dec 2022

Environmental Influences On The Growth Of Inland Cisco Populations In Three Minnesota Sentinel Lakes, Edward Carlson

Biology Graduate Theses

Cisco Coregonus artedi are a pelagic cold-water fish that are widely distributed throughout many inland lakes across the northern Midwest and play an important role as forage for large piscivores. Inland Cisco populations have been observed to vary in their overall size and recruitment potential based on the system in which they are found. Cisco are sensitive to oxythermal stress and with climate change, land use, and invasive species effects becoming more prevalent in Minnesota, aspects of lake ecosystems are changing, ultimately making Cisco more susceptible to these stressors. To investigate how different factors were affecting the population dynamics of …


Managing Non-Mulesed Sheep, Department Of Primary Industries And Regional Development, Western Australia Dec 2022

Managing Non-Mulesed Sheep, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

The Department of Primary Industries and Regional Development (DPIRD) has been involved in a variety of research projects to help producers manage non mulesed sheep. Research has shown that it is possible to successfully manage non-mulesed sheep with little extra time or cost.


Adult Home Range Size And Juvenile Movements Of Gray Hawks In The Lower Rio Grande Valley, Texas, Usa, Michael T. Stewart, William S. Clark, Brian A. Millsap, Brent D. Bibles, Timothy Brush Dec 2022

Adult Home Range Size And Juvenile Movements Of Gray Hawks In The Lower Rio Grande Valley, Texas, Usa, Michael T. Stewart, William S. Clark, Brian A. Millsap, Brent D. Bibles, Timothy Brush

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

We studied the natural history of Gray Hawks (Buteo plagiatus) in the Lower Rio Grande Valley of Texas. We used GPS-GSM telemetry to quantify dispersal time and distance, winter home range size of juveniles, and home range size of adults. Home ranges were calculated using the kernel Brownian bridge home range estimator. The median dispersal date for 14 juvenile Gray Hawks was 11 August and they traveled a median straight-line distance of 453 km. Mean winter home range sizes for 11 juveniles was 707 ha. For juveniles, female winter home ranges were larger than those of males, and …


Efficacy Of A Typical Clean-In-Place Protocol Against In Vitro Membrane Biofilms, Diwakar Singh, Sanjeev Anand Dec 2022

Efficacy Of A Typical Clean-In-Place Protocol Against In Vitro Membrane Biofilms, Diwakar Singh, Sanjeev Anand

Dairy Science and Food Science Faculty Publications: 2022 to Present

This study evaluates the effectiveness of a typical clean-in-place (CIP) protocol against in vitro biofilms on whey reverse osmosis (RO) membranes developed under static condition. Bacterial isolates obtained from RO membrane biofilms were used to develop single and multispecies biofilms under laboratory conditions. A typical commercial CIP protocol was tested against the 24-h-old biofilms, and included 6 sequential treatment steps based on alkali, surfactant, acid, enzyme, a second surfactant, and a sanitizer treatment step. Experiments were conducted in 4 replicates and the data were statistically analyzed. The results revealed a variation in the resistance of mixed-species biofilms against the individual …


Schramm Park Fall Field Days, Janis Paseka Dec 2022

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 …


The Nebraska Bird Review, Index To Volume 90 Dec 2022

The Nebraska Bird Review, Index To Volume 90

Nebraska Bird Review

From: Abbott, Sydney 56

To: Zonotrichia leucophrys oriantha 66, 146


The Nebraska Bird Review Volume 90 December 2022 Number 4 Dec 2022

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


Comparison Of Kanamycin-Resistant Bacteria In Earthworm Digestive Tracts And Soil From Compost Bins, Samantha Dooyema, Martin Dolan, Abigal Morse Dec 2022

Comparison Of Kanamycin-Resistant Bacteria In Earthworm Digestive Tracts And Soil From Compost Bins, Samantha Dooyema, Martin Dolan, Abigal Morse

Science University Research Symposium (SURS)

Antibiotic-resistant bacteria are becoming more prevalent in soil as humans have increased impacts on the environment. Previous research proposed that earthworms could affect bacteria distribution as soil is ingested and filtered through their bodies. This research aims to see if kanamycin-resistance bacteria is the same in earthworm digestive tracts as in the soil the earthworms inhabit. We expect that the gut contents and soil will vary in the occurrence of kanamycin-resistant bacteria. Earthworms and composted soil samples were collected from compost bins at a residential home in Nashville, Tennessee. Digestive tracts were dissected from the earthworms and homogenized. Kanamycin-resistant bacteria …


Beef Bull Selection And Management Affecting Breeding Season Outcomes For California Cattle Producers On Rangelands, Megan Banwarth Dec 2022

Beef Bull Selection And Management Affecting Breeding Season Outcomes For California Cattle Producers On Rangelands, Megan Banwarth

Master's Theses

California’s approximately 660,000 head of beef cattle are highly dependent on range bulls used to produce offspring that can perform across the state’s diverse ecological regions. While knowledge of bull breeding behavior and the technology used to monitor cattle movement and behavior is critical to maximize conception rates and the overall efficiency in natural service sires on rangelands. Bulls need to be functional on rugged coastal landscapes, rolling foothills, deserts, and in high-elevation terrain. Few data exist that indicate factors related to selection, maintenance, and longevity of bulls used in rangeland landscapes. Objectives herein, were to assess factors influencing bull …


Characterizing The Cutaneous Microbiome Of Eurycea Lucifuga As A Potential Defense Against Chytridiomycosis, Madeline Key Dec 2022

Characterizing The Cutaneous Microbiome Of Eurycea Lucifuga As A Potential Defense Against Chytridiomycosis, Madeline Key

Senior Honors Theses

Chytridiomycosis is an emerging infectious disease that is significantly reducing global amphibian populations. The disease is caused by Batrachochytrium dendrobatidis (Bd), a fungus that lethally modifies amphibian skin. Recent research has suggested that the cutaneous microbiome of individual amphibians may play a role in susceptibility to the pathogen. In this study, twelve cave salamanders (Eurycea lucifuga) were collected. Cutaneous bacteria from each salamander were isolated and identified using Sanger Sequencing. Additionally, a Bd-challenge assay was performed to determine each isolate’s antifungal activity. Results indicated many microbial isolates possessed inhibitory capabilities against Bd, which may …


Pilot Testing A Survey To Evaluate Horse Owner And Trainer Perceptions Of The Importance And Ideality Of Equine Hoof Balance, Katherine Gilmore Dec 2022

Pilot Testing A Survey To Evaluate Horse Owner And Trainer Perceptions Of The Importance And Ideality Of Equine Hoof Balance, Katherine Gilmore

Animal Science Undergraduate Honors Theses

Balance plays an integral role in the healthy equine hoof, yet there is a significant deficiency of research investigating horse owner and trainer knowledge of hoof balance. This study aimed to pilot test an online survey instrument evaluating horse owner and trainer perceptions of proper hoof care and balance. The survey instrument sought to collect demographic information of horse owners and trainers, determine horse owners’ and trainers’ abilities to identify ideally balanced equine forehooves, and assess horse owner and trainer knowledge of best hoof trimming and shoeing practices. Ninety-one horse owners and trainers with facilities that were within a 150-mile …


Impact Of Housing And Management On Production, Behavior, And Welfare Of Dairy Cows In Automatic Milking Systems, Lindsey Eve Davis Dec 2022

Impact Of Housing And Management On Production, Behavior, And Welfare Of Dairy Cows In Automatic Milking Systems, Lindsey Eve Davis

All Theses

The overall objective of this research was to determine the impact of Automatic Milking System (AMS) housing and management practices on cow production, behavior, and welfare of Holstein dairy cows. The first objective was to identify factors at the farm and cow level associated with lameness on AMS farms through decision tree analysis to allocate probabilities to each input. Results indicated this novel multifactorial approach of data analysis enabled us to highlight critical points that can be focused on to lessen cow-level complications or enhance farm-level housing and management practices to reduce the incidence and severity of lameness in AMS …


Understanding Movement, Habitat Use, And Habitat Selection By Largemouth Bass (Micropterus Nigricans X Salmoides) And Alabama Bass (Micropterus Henshalli) On Lake Hartwell, South Carolina, Deon Kerr Dec 2022

Understanding Movement, Habitat Use, And Habitat Selection By Largemouth Bass (Micropterus Nigricans X Salmoides) And Alabama Bass (Micropterus Henshalli) On Lake Hartwell, South Carolina, Deon Kerr

All Theses

Alabama Bass (Micropterus henshalli) were illegally introduced into the upper Savannah River Basin 15-20 years ago and have since become abundant as well as problematic ecologically. Acoustic telemetry was used to quantify diel movement, habitat use, and habitat selection of Alabama Bass and Largemouth Bass in Lake Hartwell, SC across seasons (June 2021-July 2022) with the goal of informing ongoing habitat enhancement efforts. Across all seasons, Alabama Bass conducted diel horizontal migrations from deeper offshore habitats during the day to nearshore, shallow habitats at night. Daytime Alabama Bass movement rates in offshore waters were higher than nighttime movement rates. Largemouth …


An Evaluation Of Bovine Reproductive Function From The Microrna Expression In The Female To Performance Testing In The Male, Erin Amiss Dec 2022

An Evaluation Of Bovine Reproductive Function From The Microrna Expression In The Female To Performance Testing In The Male, Erin Amiss

All Theses

Reproductive function is crucial to the success of a beef or dairy herd. Both the female and male play significant roles in the outcome of bovine reproduction. The bull contributes to reproductive success in many ways, such as genetics. The initial role that the bull has in reproductive success is fertilization, whether natural or by artificial insemination. One method of assessing bull performance are central bull test stations, which are traditionally administered by a university, extension center, or are privately owned. Central bull tests assess the performance of bulls from various management systems, breeds, and ages. Some measurements taken during …


Patterns Of Occurrence Of The Black Basses In The Upper Savannah River Tributaries Of Georgia And South Carolina With Emphasis On Bartram’S Bass Micropterus Sp. Cf. Coosae, Caroline Cox Dec 2022

Patterns Of Occurrence Of The Black Basses In The Upper Savannah River Tributaries Of Georgia And South Carolina With Emphasis On Bartram’S Bass Micropterus Sp. Cf. Coosae, Caroline Cox

All Theses

Aquatic ecosystems are among the most threatened in the world due to anthropogenic alterations to the natural landscape and native biotas. Identifying the local and landscape-level environmental factors that influence the occurrence of endemic species can help protect aquatic ecosystems by facilitating predictions of where hybridization or replacement with generalist species may occur across the landscape. The need for such predictions is pronounced for black bass species in the southeastern United States. Bartram’s Bass (Micropterus sp. cf. coosae) is a provisional species of conservation concern. Allelic frequencies of Bartram’s Bass in Savannah River reservoirs and tributaries have been …


Isomaltooligosaccharides Sustain The Growth Of Prevotella Both In Vitro And In Animal Models, Junkui Chen, Zhengpeng Li, Xiaofan Wang, Bin Fan, Feilong Deng, Hongwei D. Yu, Xiaolei Ze, Liying Zhu, Yeshi Yin, Yanhong Chen, Jiangchao Zhao, Yunsheng Yang, Xin Wang Dec 2022

Isomaltooligosaccharides Sustain The Growth Of Prevotella Both In Vitro And In Animal Models, Junkui Chen, Zhengpeng Li, Xiaofan Wang, Bin Fan, Feilong Deng, Hongwei D. Yu, Xiaolei Ze, Liying Zhu, Yeshi Yin, Yanhong Chen, Jiangchao Zhao, Yunsheng Yang, Xin Wang

Animal Science Faculty Publications and Presentations

The human digestive tract is colonized by trillions of bacterial cells that play important roles in human health and diseases. It is well known that dietary habits are associated with human microbiota enterotypes. However, the factors that determine the enterotype still remain elusive. In this study, it was first examined, via in vitro batch fermentation, how different carbohydrates affect the Bacteroides and Prevotella enterotypes. Among the 11 substrates (fructo-, galacto-, xylo-, manno-, and isomalto-oligosaccharides [IMO] and lactulose, raffinose, starch, inulin [INU], mannitol, and xylitol) tested, IMO, INU, and starch were found to sustain the growth of Prevotella through batch fermentation. …


Evaluation Of The Selected Nuproxa Feed Additives For Protection Against Lameness And Improving The Wellbeing Of Broilers In The Lameness Challenge Model, Abigail Fanous Dec 2022

Evaluation Of The Selected Nuproxa Feed Additives For Protection Against Lameness And Improving The Wellbeing Of Broilers In The Lameness Challenge Model, Abigail Fanous

Biological Sciences Undergraduate Honors Theses

Bacterial Chondronecrosis with Osteomyelitis (BCO) is a form of bacteria that causes lameness in broiler chickens and is a common concern within the poultry industry. This easily transmissible disease can quickly take over entire livestock of chickens leading to an animal welfare issue. Due to this, it is a pressing issue that must be solved in order to protect the wellbeing of broiler chickens and ensure viable livestock. Nuproxa is a company that specializes in chicken feed in which we used to test different amounts of Panbonis, a dietary supplement, in its effectiveness in protecting broiler chickens against BCO lameness. …


Channel Catfish - Ictalurus Punctatus, Jason E. Rosales, David William Kerstetter Dec 2022

Channel Catfish - Ictalurus Punctatus, Jason E. Rosales, David William Kerstetter

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

Neurocranium total length is 110.81 mm, [CHANNEL CATFISH , Ictalurus punctatus} collected from Canal in Davie on November 18th, 2022 by Zachary