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2022

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Articles 991 - 1020 of 1110

Full-Text Articles in Animal Sciences

Investigation Of Antimicrobial Resistance Of Esßl, Amp-C, And Carbapenemaseproducing E. Coli Strains In Retail Poultry Meats, Gülçi̇n Güven, Si̇bel Kizil Jan 2022

Investigation Of Antimicrobial Resistance Of Esßl, Amp-C, And Carbapenemaseproducing E. Coli Strains In Retail Poultry Meats, Gülçi̇n Güven, Si̇bel Kizil

Turkish Journal of Veterinary & Animal Sciences

Antimicrobial agents are used for suppressing some bacterial infections during the rearing of poultry. In this study; the antibiotic resistance properties of Extended Spectrum ßeta-lactamase (ESßL), Amp-C, carbapenemase-producing Escherichia coli (E. coli) strains isolated from chicken breast meat were determined by disc diffusion and E-test methods. Additionally, it is aimed to determine antibiotic resistance genes by classical polymerase chain reaction (PCR). In this context, E. coli strains were isolated from 7 of 100 chicken breast meat (fillets) and identified by a rapid identification system (BBL Crystal). Disc diffusion test results of the isolates were evaluated and 100% to tetracycline; ampicillin, …

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Pathological And Immunohistochemical Changes In The Liver Of Monocrotaline-Treated Rats, Şevket Soylu, Aydin Çevi̇k, Necati̇ Ti̇murkaan Jan 2022

Pathological And Immunohistochemical Changes In The Liver Of Monocrotaline-Treated Rats, Şevket Soylu, Aydin Çevi̇k, Necati̇ Ti̇murkaan

Turkish Journal of Veterinary & Animal Sciences

Pathological and immunohistochemical changes in livers were investigated in monocrotaline-treated rats. Eighty adult-male Wistar rats were distributed in 5 groups, each containing 16 animals according to monocrotaline dose (Group I: 50 mg/kg, Group II: 100 mg/kg, Group III: 150 mg/kg, and Group IV: 200 mg/kg). The control group was administered with physiological saline. Half of the animals in each group were euthanized at the 18th hour while the remaining half at the 6th week postinoculation. At the end of the 18th hour, the most prominent lesion was hepatocytic apoptosis which was dose-dependent. Apoptotic cells were mostly located in periportal and …

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Cryopreservation Of Nili-Ravi Buffalo Bull Semen: Yearly Postthaw Analyses To Depict Climatic Effects, Ejaz Ahmad, Muhammad Shakeel, Zahid Naseer, Adeel Ahmed, Mudussar Nawaz, Muhammad Saleem Akhtar Jan 2022

Cryopreservation Of Nili-Ravi Buffalo Bull Semen: Yearly Postthaw Analyses To Depict Climatic Effects, Ejaz Ahmad, Muhammad Shakeel, Zahid Naseer, Adeel Ahmed, Mudussar Nawaz, Muhammad Saleem Akhtar

Turkish Journal of Veterinary & Animal Sciences

The present study was aimed to observe the postthaw quality of Nili-Ravi buffalo bull semen cryopreserved during heat stress (hot summer months) and normal climatic conditions (fall, winter, and spring months). For this purpose, four (n = 4) adult regular donor Nili-Ravi buffalo bulls were selected to collect and cryopreserve their semen throughout the period of an entire year. The cryopreservation of semen was done following standard freezing protocol. The semen doses cryopreserved during heat stress and normal climatic condition were thawed to determine the sperm motility, motion kinetics, viability, plasma membrane integrity, acrosomal integrity, and morphological abnormalities (head, mid-piece, …

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A Review Of The Alien Fishes Of Turkish Inland Waters, Erdoğan Çi̇çek, Soheil Eagderi, Sevi̇l Sungur Jan 2022

A Review Of The Alien Fishes Of Turkish Inland Waters, Erdoğan Çi̇çek, Soheil Eagderi, Sevi̇l Sungur

Turkish Journal of Zoology

Aquaculture, recreational fishing, restocking, biological control, and the ornamental fish trade have increased the number of nonnative fish in Turkish inland waters. This work reviews the history, current state, and tendencies of fish introductions into Turkish freshwaters. To date, it is known that a total of 34 exotic species (except two marine and three misidentified species) have been introduced deliberately or accidentally into Turkish inland waters, of which, only 19 species have been established in wild ecosystems. A total of five acclimatized species, viz. Coregonus lavaretus, C. macrophthalmus, Salmo salar, Salvelinus alpinus, and S. fontinalis and four species, viz. Hypophthalmichthys …

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Length-Weight Relationships Of 28 Fish Species Caught From Demersal Trawl Survey In Themiddle Black Sea, Turkey, Murat Dağteki̇n, Yaşar Genç, Nazli Kasapoğlu, Gökhan Eri̇k, Devri̇m Seli̇m Misir, Sali̇h İlhan, Meltem Ok, Cemi̇l Altuntaş, Uğur Özsandikçi, Ferhat Büyükdeveci̇, Tuğba Kaya, Ayşe Cebeci̇, Asi̇ye Nur Saltan, Ati̇la Haşi̇moğlu, Şi̇ri̇n Fi̇ri̇di̇n Jan 2022

Length-Weight Relationships Of 28 Fish Species Caught From Demersal Trawl Survey In Themiddle Black Sea, Turkey, Murat Dağteki̇n, Yaşar Genç, Nazli Kasapoğlu, Gökhan Eri̇k, Devri̇m Seli̇m Misir, Sali̇h İlhan, Meltem Ok, Cemi̇l Altuntaş, Uğur Özsandikçi, Ferhat Büyükdeveci̇, Tuğba Kaya, Ayşe Cebeci̇, Asi̇ye Nur Saltan, Ati̇la Haşi̇moğlu, Şi̇ri̇n Fi̇ri̇di̇n

Turkish Journal of Zoology

This study provides updated the length-weight relationships and Fulton's condition factor of 28 fish species belonging to 23 families from the Black Sea. Samples were collected along the depths between 0-100 meters by demersal trawl surveys conducted seasonally from May 2017 to September 2019. A total of 83,885 specimens were collected. The length-weight relationships and Fulton's condition factor, minimum, maximum and mean lengths, total weights, descriptive statistics, and growth type were provided for all the species. The results indicate that LWR parameters of b varied from 2.2039 to 3.737 and Fulton's condition factor varied between 0.004 and 1.18. These findings …

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An Updated And Annotated Checklist Of The Malacostraca (Crustacea) Species Inhabitedturkish Inland Waters, Mehmet İpek, Murat Özbek Jan 2022

An Updated And Annotated Checklist Of The Malacostraca (Crustacea) Species Inhabitedturkish Inland Waters, Mehmet İpek, Murat Özbek

Turkish Journal of Zoology

The current status and annotated checklist of fresh- and brackish-water amphipod species inhabiting the inland waters (streams, lakes, ponds, lagoons, subterranean waters, etc.) of Turkey is presented. Totally, 171 papers, 3 books, 3 book chapters, 5 conference papers, 2 projects, 3 PhD and 3 MSc thesis were examined in the present study. As the result of the previous records, 201 taxa comprising 121 amphipods (16 families, 31 genera), 27 isopods (9 families, 13 genera), 9 mysids (1 family, 5 genera), 4 tanaids (3 families, 4 genera) and 40 decapods (16 families, 18 genera) were compiled. All the previously recorded localities …

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Fish Biodiversity In Zhanjiang Mangroves National Nature Reserve, China, Juan Lei, Yongyan Liao, Wei Tang, Dong Xie, Teng Wang, Wen Xiong, Peter A. Bowler Jan 2022

Fish Biodiversity In Zhanjiang Mangroves National Nature Reserve, China, Juan Lei, Yongyan Liao, Wei Tang, Dong Xie, Teng Wang, Wen Xiong, Peter A. Bowler

Turkish Journal of Zoology

China's mangroves provide important habitat for many endangered fish species, but, there has been little research upon the diversity and the distribution of fish species within mangroves habitats. To compile an inventory of fish fauna in this field, a total of 14 ichthyological surveys were conducted in Zhanjiang Mangrove during different seasons between August 2016 and December 2019. A total of 208 fish species have identified belonging to 18 orders, 69 families and 142 genera from Zhanjiang Mangroves National Nature Reserve, the largest mangrove habitat in China. Of these 17 species are listed as threatened species in the IUCN Red …

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Marine Mucilage In The Sea Of Marmara And Its Effects On The Marine Ecosystem: Mass Deaths, Uğur Karadurmuş, Mustafa Sari Jan 2022

Marine Mucilage In The Sea Of Marmara And Its Effects On The Marine Ecosystem: Mass Deaths, Uğur Karadurmuş, Mustafa Sari

Turkish Journal of Zoology

In April of 2021, there was a massive explosion of marine mucilage in the Sea of Marmara, as a result, many invertebrates of marine communities suffered mass mortality. We summarize our results about the devastating effect of mucilage bloom on mass deaths in the Sea of Marmara. The phenomena were lethal to the pelagic fishes and crustaceans, and individuals were impacted severely smothered by mucilage or anoxia. Mucilage accumulations have shown their effectiveness in many areas around the Kapıdağ Peninsula. Misakça, Şirinçavuş, Narlı, and Tatlısu regions, where mass death cases occurred, were selected as study areas, and these areas are …

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Earthworm Community Structure Along Altitudinal Gradients On The Western Slopes Ofkopaonik Mountain In Serbia, Filip Popovic, Mirjana Stojanovic, Slobodanka Radosavljevic, Tanja Trakic, Jovana Sekulic Jan 2022

Earthworm Community Structure Along Altitudinal Gradients On The Western Slopes Ofkopaonik Mountain In Serbia, Filip Popovic, Mirjana Stojanovic, Slobodanka Radosavljevic, Tanja Trakic, Jovana Sekulic

Turkish Journal of Zoology

The aim of this study is to examine the altitudinal patterns of earthworm community structure at different habitat types on the western slopes of Kopaonik Mountain. In total, 30 plots between 420 and 1950 m a.s.l. were sampled within two years' fieldwork. Overall, 27 earthworm taxa belonging to 11 genera were found at the study sites. A combination of Pearson's correlation, polynomial regression, and cluster analysis (UPGMA) was used for determining the effects of altitude on the earthworm community structure. The earthworm abundance and species richness monotonically decreased with the increase in altitude, showing a significant negative correlation. Cluster analysis …

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Density, Diversity, And Seasonal Fluctuations In Soil Collembola In Three Differentlymanaged Ecosystems In North Khorasan, Iran, Mahmood Mehrafrooz Mayvan, Hussein Sadeghi Namaghi, Masoumeh Shayanmehr, Penelope Greenslade, Grant Palmer Jan 2022

Density, Diversity, And Seasonal Fluctuations In Soil Collembola In Three Differentlymanaged Ecosystems In North Khorasan, Iran, Mahmood Mehrafrooz Mayvan, Hussein Sadeghi Namaghi, Masoumeh Shayanmehr, Penelope Greenslade, Grant Palmer

Turkish Journal of Zoology

We examined the density, diversity, and seasonal fluctuation of soil inhabiting Collembola in different ecosystems: agricultural, rangeland, and forest ecosystems in the North Khorasan province of Iran from June 2018 to May 2019. The sampling program was conducted monthly on the three sites. Density was measured on the number of individuals per square meter. Species diversity was calculated using Shannon?Wiener index, Simpson?s diversity, and species richness by Rarefaction method. Fifty-three species belonging to 42 genera and 17 families were collected and identified. The density of Collembola in the forest was higher than in either rangeland or agroecosystem. Highest densities were …

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Evolutionary Relationships Among Several Species From The Genus Cricotopus(Diptera: Chironomidae): What About Turkish Representatives Of This Genus?, Adi̇le Sari Jan 2022

Evolutionary Relationships Among Several Species From The Genus Cricotopus(Diptera: Chironomidae): What About Turkish Representatives Of This Genus?, Adi̇le Sari

Turkish Journal of Zoology

The genus Cricotopus (Diptera: Chironomidae) has a worldwide distribution and possesses a wide variation in ecology and habitat preference across its distribution. Identification of Cricotopus species and distinguishing them from the species of closely related genera (i.e. Orthocladius and Paratrichocladius) are generally difficult. This study aimed to investigate the evolutionary history of several Cricotopus species, with the main focus on C. bicinctus, C. flavocinctus, C. triannulatus, C. patens, C. intersectus, C. laricomalis, C. ornatus, C. reversus, and C. sylvestris from Turkey, using the mitochondrial cytochrome c oxidase subunit I (COI) gene. Molecular classifications of Turkish Cricotopus species were full compatible …

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Hematological Status Of Avian Species Along A Metal Pollution Gradient At Sialkot, Pakistan, Ajmal Shehzad, Khalid Mahmood Anjum, Atif Yaqub, Muhammad Zubair Yousaf, Sarwr Allah Ditta, Junaid Naseer Jan 2022

Hematological Status Of Avian Species Along A Metal Pollution Gradient At Sialkot, Pakistan, Ajmal Shehzad, Khalid Mahmood Anjum, Atif Yaqub, Muhammad Zubair Yousaf, Sarwr Allah Ditta, Junaid Naseer

Turkish Journal of Zoology

The concentration of metals and effects of these metals on hematological parameters were examined in avian species by using feathers and blood samples collected from different sites of Sialkot. The major reason for significant differences in hematological parameters and concentrations of metal contents between different species was the difference in feeding habitat. Metal concentrations in feathers and blood samples indicated that the chromium and lead were not found at a safe level. The results did not revealed a significant negative association between metal contents and hematological parameters but concluded that increased metal contents exert negative effects on hematological status especially …

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Comparisons Of Biochemical Compositions In Marsh Frog (Pelophylax Ridibundus)(Anura; Ranidae) Grown In Different Conditions; Wild, Semicultured And Cultured Ones, Emrah Şi̇mşek, Ahmet Alkaya, Hülya Şerefli̇şan, Ayşe Özyilmaz Jan 2022

Comparisons Of Biochemical Compositions In Marsh Frog (Pelophylax Ridibundus)(Anura; Ranidae) Grown In Different Conditions; Wild, Semicultured And Cultured Ones, Emrah Şi̇mşek, Ahmet Alkaya, Hülya Şerefli̇şan, Ayşe Özyilmaz

Turkish Journal of Zoology

Frogs can be added to a list of different raw materials which have sustainable economic value to their producers. Therefore, the biochemical attributes of the frogs require further scientific scrutiny. The major objective of the current study is to investigate some biochemical compositions of edible portions of Pelophylax ridibundus (Pallas, 1771) grown in different conditions. The wild frogs, semicultured frogs, and cultured frogs were investigated regarding female and male specimens, leading to six groups that were determined to investigate the biochemical features of frogs. The results show that they (all frogs in all six groups) have low lipid contents (p < 0.05). The protein contents of the frogs varied in the range of 10.54%-16.10%. The lowest ash contents were found in semicultured male and female frogs. The average moisture contents were roughly 80% for all specimens. The major fatty acids were C16:0, C18:0, C18:1n9, C18:2n6, and C20:4n6 for wild, semicultured, and cultured frogs, respectively, for both sexes, showing their respective amounts varied among groups. All in all, the results show that there exist some differences in the nutritional content of frogs grown in different

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Dynamics Of A Western Anatolian Population Of Natrix Natrix And Natrix Tessellata(Serpentes: Natricidae), Yusuf Bayrakci, Di̇nçer Ayaz Jan 2022

Dynamics Of A Western Anatolian Population Of Natrix Natrix And Natrix Tessellata(Serpentes: Natricidae), Yusuf Bayrakci, Di̇nçer Ayaz

Turkish Journal of Zoology

Due to their secretive nature, snakes are the most challenging animal group for monitoring. Nevertheless, population size estimates are indispensable to accurately determining conservation status and management strategies. We used passive integrated transponder (PIT) tags to track aquatic snakes Natrix natrix and Natrix tessellata in Lake Işıklı, Denizli province, Turkey. 304 N. natrix and 1563 N. tessellata specimens were captured and marked over the four-year sampling period. Of the marked individuals, 14 N. natrix and 97 N. tessellata were recaptured at least once. The three-year average population size was estimated at 1940 ± 1055 for N. natrix, and 10,146 ± …

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Microsatellite Based Genetic Diversity Of Mediterranean Fruit Fly(Ceratitis Capitata, Diptera: Tephritidae) Populations From Southwest Turkey, Abuzer Güler, Vatan Taşkin, Belgi̇n Göçmen Taşkin, Ersi̇n Doğaç Jan 2022

Microsatellite Based Genetic Diversity Of Mediterranean Fruit Fly(Ceratitis Capitata, Diptera: Tephritidae) Populations From Southwest Turkey, Abuzer Güler, Vatan Taşkin, Belgi̇n Göçmen Taşkin, Ersi̇n Doğaç

Turkish Journal of Zoology

Various pests cause economic losses in some agricultural products, especially in citrus fruits, which are grown in many countries and have a very important role in consumption and export. The Mediterranean fruit fly, Ceratitis capitata Wied. (Diptera: Tephritidae), which spreads throughout the Mediterranean basin, Europe, the Middle East, Central, and South America, and Australia, is considered the most destructive pest in the world. Turkey is an important part of the Eastern Mediterranean basin and, maybe plays a role in the colonization of this pest. This polyphagous species causes huge economic losses by negatively affecting yield and quality in many countries. …

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Comparative Diversity Of Heteroptera (Hemiptera) In Fruit Orchards, Gülay Kaçar, Ahmet Dursun Jan 2022

Comparative Diversity Of Heteroptera (Hemiptera) In Fruit Orchards, Gülay Kaçar, Ahmet Dursun

Turkish Journal of Zoology

Among phytophagous insects, the Heteroptera (Hemiptera), true bugs, are economically important because of damage crops by sucking plant organs and by transmitting plant pathogens. The diversity and distribution of Heteroptera species associated with fruits were investigated in hazelnut, cherry, and apple orchards in the crop season of Bolu and Düzce provinces from May 2015 to October 2016. The species were collected with a Steiner funnel from three fruit varieties from two provinces and for each area at different vegetation in the western Black Sea Region. The highest number of sucking bug species and the greatest diversity occurred on hazelnut. A …

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Halyomorpha Halys Stål, (Hemiptera:Pentatomidae) Feeding Effects On Some Agriculturalfruits In Georgia, Manana Kereselidze, Daniela Pilarska, Nika Guntadze, Andreas Linde Jan 2022

Halyomorpha Halys Stål, (Hemiptera:Pentatomidae) Feeding Effects On Some Agriculturalfruits In Georgia, Manana Kereselidze, Daniela Pilarska, Nika Guntadze, Andreas Linde

Turkish Journal of Zoology

Feeding effects of the invasive, polyphagous brown marmorated stink bug (BMSB), Halyomorpha halys (Hemiptera:Pentatomidae), on some agricultural fruits (hazelnut, blueberry, mandarin, lemon) were investigated in Guria and Samegrelo regions of Georgia in 2019 and 2020. The damage to hazelnut kernels was evaluated when H. halys adults were allowed to feed on kernels in different stages of development. Furthermore, BMSB adults were allowed to feed on almost ripened fruits of blueberry, on small mandarin fruits which were not yet well developed, and on ripened fruits of mandarin. The evaluation of damage on lemon was recorded after allowing adult BMSB on small, …

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The Effects Of Feed Additives And The Use Of A Novel Wood Boiler Heat Exchanger On Litter Quality, Broiler Performance, And Immune Status, Victoria Ayres Jan 2022

The Effects Of Feed Additives And The Use Of A Novel Wood Boiler Heat Exchanger On Litter Quality, Broiler Performance, And Immune Status, Victoria Ayres

Graduate Theses, Dissertations, and Problem Reports (ETD)

Experiments were conducted to investigate the effects of varying feed ingredients and heating systems on boiler performance metrics. Chapter Two investigated the effects of two corn-expressed phytases, differing in enzyme concentration within the grain (3,000 or 9,677 FTU/g), on broiler performance and tibia mineralization, when used as a component in pelleted feed. Dietary treatments included a positive control (PC), with industry-recommended levels of calcium and phosphorous, and a negative control (NC), lower in calcium and non-phytate phosphorous. Six diets containing corn-expressed phytase at high or low grain concentrations, formulated to 3,000, 6,000, or 9,000 FTU/kg, were …

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Population Characteristics Of Three Black Bass Species In The Upper Ohio River Drainage, Levi Foster Brown Jan 2022

Population Characteristics Of Three Black Bass Species In The Upper Ohio River Drainage, Levi Foster Brown

Graduate Theses, Dissertations, and Problem Reports (ETD)

In West Virginia, species of black bass are economically and ecologically important and support popular fisheries. In the state’s large, navigable river systems, recent information suggests that anglers consider these fisheries diminished relative to their historic stocks. This study sought to describe the population characteristics of Largemouth, Smallmouth, and Spotted Bass in the upper Ohio River drainage and evaluate possible management actions. Low relative abundances coupled with poor growth estimates for Largemouth and Spotted Bass suggests that a suite of environmental and anthropogenic factors may be reducing the quality of their recreational fisheries. Conversely, demographic estimates produced for Smallmouth Bass …

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Population Dynamics, Relative Abundance, And Habitat Suitability Of Adult Red Drum (Sciaenops Ocellatus) In Nearshore Waters Of The North-Central Gulf Of Mexico, Crystal Hightower, J. Marcus Drymon, Amanda E. Jefferson, Matthew B. Jargowsky, Emily A. Seubert, Simon Dedman, John Mareska, Sean P. Powers Jan 2022

Population Dynamics, Relative Abundance, And Habitat Suitability Of Adult Red Drum (Sciaenops Ocellatus) In Nearshore Waters Of The North-Central Gulf Of Mexico, Crystal Hightower, J. Marcus Drymon, Amanda E. Jefferson, Matthew B. Jargowsky, Emily A. Seubert, Simon Dedman, John Mareska, Sean P. Powers

University Faculty and Staff Publications

In the Gulf of Mexico, the red drum (Sciaenops ocellatus) is an immensely popular sportfish, yet the Gulf of Mexico stock is currently managed as data-limited in federal waters. The results of the federal stock assessment conducted in 2016 for Gulf of Mexico red drum were not recommended for providing management advice. Consequently, we sought to address data gaps highlighted in the assessment by producing up-to- date overall and sex-specific growth models, standardized indices of relative abundance, and predictions of habitat suitability and by updating estimates of natural mortality. Using a time series for the period of 2006–2018, we assigned …

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Plague Risk In The Western United States Over Seven Decades Of Environmental Change, Colin J. Carlson, Sarah N. Bevins, Boris V. Schmid Jan 2022

Plague Risk In The Western United States Over Seven Decades Of Environmental Change, Colin J. Carlson, Sarah N. Bevins, Boris V. Schmid

United States Department of Agriculture Wildlife Services: Staff Publications

After several pandemics over the last two millennia, the wildlife reservoirs of plague (Yersinia pestis) now persist around the world, including in the western United States. Routine surveillance in this region has generated comprehensive records of human cases and animal seroprevalence, creating a unique opportunity to test how plague reservoirs are responding to environmental change. Here, we test whether animal and human data suggest that plague reservoirs and spillover risk have shifted since 1950. To do so, we develop a new method for detecting the impact of climate change on infectious disease distributions, capable of disentangling long-term trends (signal) and …

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Wild Pig Removal Reduces Pathogenic Bacteria In Low-Order Streams, Sara A. Bolds, B. Graeme Lockaby, Latif Kalin, Stephen S. Ditchkoff, Mark D. Smith, Kurt Vercauteren Jan 2022

Wild Pig Removal Reduces Pathogenic Bacteria In Low-Order Streams, Sara A. Bolds, B. Graeme Lockaby, Latif Kalin, Stephen S. Ditchkoff, Mark D. Smith, Kurt Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Invasive wild pig populations have undergone enormous increases in the United States and particularly across the southern U.S. in recent years. High fecundity rates and abilities to adapt quickly to varied habitats have enabled pig populations to become entrenched and difficult to eliminate. The pigs cause many negative impacts on ecosystems including degradation of water quality through infusion of fecal contamination and other non-point source pollutants. Our goal was to determine the effects of pig removal on water quality in streams that were known to be significantly polluted by pig activity Bolds (J Environ Qual 50: 441–453, 2021). We compared …

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A Model For Leveraging Animal Movement To Understand Spatio-Temporal Disease Dynamics, Mark Q. Wilber, Anni Yang, Raoul Boughton, Kezia R. Manlove, Ryan S. Miller, Kim M. Pepin, George Wittemyer Jan 2022

A Model For Leveraging Animal Movement To Understand Spatio-Temporal Disease Dynamics, Mark Q. Wilber, Anni Yang, Raoul Boughton, Kezia R. Manlove, Ryan S. Miller, Kim M. Pepin, George Wittemyer

United States Department of Agriculture Wildlife Services: Staff Publications

The ongoing explosion of fine-resolution movement data in animal systems provides a unique opportunity to empirically quantify spatial, temporal and individual variation in transmission risk and improve our ability to forecast disease outbreaks. However, we lack a generalizable model that can leverage movement data to quantify transmission risk and how it affects pathogen invasion and persistence on heterogeneous landscapes. We developed a flexible model ‘Movement-driven modelling of spatio-temporal infection risk’ (MoveSTIR) that leverages diverse data on animal movement to derive metrics of direct and indirect contact by decomposing transmission into constituent processes of contact formation and duration and pathogen deposition …

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Review Of Loon Lessons: Uncommon Encounters With The Great Northern Diver, By James D. Paruk, Kristin Bianchini Jan 2022

Review Of Loon Lessons: Uncommon Encounters With The Great Northern Diver, By James D. Paruk, Kristin Bianchini

The Prairie Naturalist

Gavia immer Brunnich (Common Loon) is a bird that has captivated bird watchers, wildlife enthusiasts, campers, cottagers, and others interested in the natural world for centuries. The loon also features prominently in Native American mythology. For many, the loon symbolizes the wildness of the north, and it is often used as a sentinel of lake health. Indeed, the Common Loon has inspired a wealth of literature, both scientific and popular, describing this species’ ecology, behavior, and fitness in the face of environmental changes. To this literature, Loon Lessons: Uncommon Encounters with the Great Northern Diver adds a complete and accurate …

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Effects Of Covid-19 Mandates On Student Engagement And Management Of Collegiate Equestrian Teams, Travis Fortune Jan 2022

Effects Of Covid-19 Mandates On Student Engagement And Management Of Collegiate Equestrian Teams, Travis Fortune

Murray State Theses and Dissertations

Events like a global pandemic can negatively impact how organizations and groups function. From a collegiate perspective, this could include limiting or eliminating participation in co-curricular activities that have positive impacts on student experiences. Students use these events to make new friends, socialize and generate a sense of belonging, and gain interactions outside the classroom. In March 2020, a number of mandated restrictions were put into place in the United States in response to COVID-19, and collegiate equestrian teams' ability to practice and show were negatively impacted. Even though some restrictions were beginning to ease as of Fall 2021, many …

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Effects Of Cannabinoid Supplementation On Weaning And Transportation Stress In Beef Calves, Savannah Kaitlyn Austin Jan 2022

Effects Of Cannabinoid Supplementation On Weaning And Transportation Stress In Beef Calves, Savannah Kaitlyn Austin

Murray State Theses and Dissertations

Transportation stress is a major factor increasing the risk of bovine respiratory disease (BRD) in young calves. Bovine respiratory disease is currently the most economically important disease affecting the cattle industry, costing producers millions of dollars annually. Cannabidiol (CBD) has shown therapeutic benefits in other species, making it a potential tool to use as a supplement to reduce transportation and weaning stress in calves. However, little information is available on cannabinoid bioavailability and disposition of bioactive residue in livestock tissues. The objectives of these studies were to evaluate effective dosage rates of a cannabinoid gel on beef cattle and to …

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How Do They Do It? Using Omics Approaches To Explore Metabolic Responses Associated With Hypoxia And Exercise Tolerance In The Deepest Diving Pinniped, Elizabeth R. Piotrowski Jan 2022

How Do They Do It? Using Omics Approaches To Explore Metabolic Responses Associated With Hypoxia And Exercise Tolerance In The Deepest Diving Pinniped, Elizabeth R. Piotrowski

University of the Pacific Theses and Dissertations

Marine mammals such as northern elephant seals (NES) routinely experience hypoxemia and ischemia-reperfusion events to many tissues during deep dives with no apparent adverse effects. Adaptations to diving include increased antioxidants and elevated oxygen storage capacity associated with high hemoprotein content in blood and muscle. Despite experiencing decreased oxygen tensions during diving, NES likely rely on the mobilization of large lipids stores and catabolism of fatty acids to provide energy to exercising muscle while diving. To identify potential regulatory mechanisms that may underly hypoxia and exercise tolerance in diving mammals, this study used system-wide approaches to characterize changes in genes …

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Fertility Control Options For Management Of Free-Roaming Horse Populations, Ursula S. Bechert, John W. Turner Jr., Dan L. Baker, Douglas C. Eckery, Jason E. Bruemmer, Candace C. Lyman, Tulio M. Prado, Sarah R. B. King, Mark A. Fraker Jan 2022

Fertility Control Options For Management Of Free-Roaming Horse Populations, Ursula S. Bechert, John W. Turner Jr., Dan L. Baker, Douglas C. Eckery, Jason E. Bruemmer, Candace C. Lyman, Tulio M. Prado, Sarah R. B. King, Mark A. Fraker

Human–Wildlife Interactions

The management of free-roaming horses (Equus ferus) and burros (E. asinus) in the United States has been referred to as a “wicked problem” because, although there are population control options, societal values will ultimately determine what is acceptable and what is not. In the United States, free-roaming equids are managed by different types of organizations and agencies, and the landscapes that these animals inhabit vary widely in terms of access, size, topography, climate, natural resources, flora, and fauna. This landscape diversity, coupled with contemporary socioeconomic and political environments, means that adaptive management practices are needed to …

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Partnerships Create Success For The Devil’S Garden Wild Horses, Laura K. Snell Jan 2022

Partnerships Create Success For The Devil’S Garden Wild Horses, Laura K. Snell

Human–Wildlife Interactions

Many wild horse (Equus ferus caballus) populations that inhabit designated federal land in the United States currently exceed management objectives. Overabundant wild horse populations can adversely impact the ecosystem, native wildlife, and other land uses. Unfortunately, there is not a universal solution, as each impacted area may differ ecologically, economically, socially, and politically. Wild horse management is not just a 1-time project but a long-term program where buy-in is needed from the federal and state agencies, local governments, and private partners. Local county governments and private partners can have important insights and significant influence on the development and …

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Wyoming’S Wild Horse Ranch: History And Description Of A Socio-Ecological Experiment, Alex Sas-Jaworsky, John Derek Scasta Jan 2022

Wyoming’S Wild Horse Ranch: History And Description Of A Socio-Ecological Experiment, Alex Sas-Jaworsky, John Derek Scasta

Human–Wildlife Interactions

The growing population of free-roaming horses (Equus ferus caballus) on western public rangelands has necessitated that federal agencies, such as the Bureau of Land Management (BLM) and U.S. Forest Service, develop novel approaches to curb growth including reproduction management. However, bureaucracy has hindered effective research and application of horse management on public lands and examples on private lands may present new solutions. Here we present the history and current population management strategy for the Wild Horse Ranch (WHR) located in southeastern Wyoming, USA, as an example of an ongoing private entity managing horses. Prior to 1985, this ~6,000-ha …

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