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Articles 1 - 16 of 16
Full-Text Articles in Zoology
Phenotype Characterization Of Sas-7(Or1945) C. Elegans, Chase Reinert
Phenotype Characterization Of Sas-7(Or1945) C. Elegans, Chase Reinert
Student Symposium
The ability to form a bipolar spindle is crucial for accurate cell division. In the nematode C. elegans several genes have been described with roles in spindle assembly including sas-7. The centriole is a key organizer of mitotic spindles. The sas-7 protein is a centriole component that regulates centriole duplication, elongation, and assembly. To date, most work on sas-7 was using a conditional non-null allele. In this study, phenotypes associated with the loss-of-function sas-7(or1945) null allele were characterized. Homozygous sas-7(or1945) hermaphrodites have reduced brood sizes with no viable embryos compared to wild-type and heterozygotes. When they do produce embryos, they …
Animal Care Observation Internship, Chandler Carr
Animal Care Observation Internship, Chandler Carr
Student Symposium
Zoos contain a wide variety of animals that each have idiosyncratic behavioral patterns, personalities and preferences. Unlike scientific literature, which tends to focus on the population, zoos take the wants and needs of individuals as priority. It would, thus, be beneficial for the zoo to have a detailed account of individual behavior throughout the day so the zoo knows how best to care for individuals. However, it is very likely that a few zookeepers watch over several animals at a time and have tasks to perform throughout the day. Watching and documenting specific behaviors at a specific time is a …
Familiarity And Its Impacts On Male Mate Preference The Sailfin Molly, Poecilia Latipinna, Abigail Doza, Alyssa Back
Familiarity And Its Impacts On Male Mate Preference The Sailfin Molly, Poecilia Latipinna, Abigail Doza, Alyssa Back
Student Symposium
Mating behaviors are an integral part of the life history and ecology of many species. Male mate preferences are an especially understudied area of research. We examined male mate preference for familiar and unfamiliar female fish in the sailfin molly Poecilia latipinna. We hypothesized that males would prefer familiar females as they may have been able to gather additional information concerning the female’s reproductive status. Males were isolated for a minimum of four days and then tested in a choice tank with two females of similar size. After the experiment, each male was randomly assigned to be with one of …
Wildlife Rehabilitation Internship At Ohio Wildlife Center, Chase Reinert, Cassady Wolfinger
Wildlife Rehabilitation Internship At Ohio Wildlife Center, Chase Reinert, Cassady Wolfinger
Student Symposium
Ohio Wildlife Center treats approximately 8,000 sick, orphaned, or injured native Ohio wildlife every year. Throughout the spring semester, we completed a three-month internship to learn all aspects of wildlife rehabilitation. During our time at the Ohio Wildlife Center, we learned basic handling skills of a variety of species, including orphaned animals. Spring is the busiest time of year and most of our time was consumed with doing intake exams and tube feedings of infant animals. In addition to the wildlife hospital, the Ohio Wildlife Center has a pre-release facility located in Powell. Once a patient is deemed healthy enough …
Betta Fish Reactions To Color: A Qualitative And Quantitative Analysis, Jessica Barrios, Jackie Arnott
Betta Fish Reactions To Color: A Qualitative And Quantitative Analysis, Jessica Barrios, Jackie Arnott
Student Symposium
We will be studying the connections between mating, aggression, and the coloration of male betta fish and how they react to the coloration of other betta fish. We chose this topic because coloration is genetically linked to aggression in male betta fish, and because aggressive behaviors are very similar to mating behaviors.
Flight And Wing Comparison Of Bats In A Cloud And A Dry Forest In Costa Rica, Makali Haines
Flight And Wing Comparison Of Bats In A Cloud And A Dry Forest In Costa Rica, Makali Haines
Student Symposium
The shape, and size of an object’s wings and body can tell you a lot about their aerodynamics and strategies for flight. Some wings are built to be fast and agile while others are slower but more powerful, and there are a lot of factors that go into deciding the best strategy for each situation or location. When you think of this in terms of animals' wings and different habitats one might predict that different habitats contain animals that have different flying strategies. I measured many aspects of Costa Rican bats caught in both the wet and dry forest, then …
Characterization Of The Yeast Gene Ydl218w: A Role In Cell Wall Biosynthesis And Maintenance?, Kaden Hubly
Characterization Of The Yeast Gene Ydl218w: A Role In Cell Wall Biosynthesis And Maintenance?, Kaden Hubly
Student Symposium
The budding yeast, Saccharomyces cerevisiae, is a common model organism used to study eukaryotic cell biology. S. cerevisiae is a fungus with a cell wall which makes it an excellent model for the study of antifungal agents. There are close to 1,000 genes of unknown function (GUFs) in S. cerevisiae. One of these is the gene YDL218W on which our research is focused. While little is known about this gene, evidence suggests that it may be involved in cell wall synthesis or maintenance. For example, YDL218W is induced by a transcription factor known to regulate genes involved in maintaining cell …
Advancing Natural History Research Using The Collections Of The Owu Brant Museum Of Zoology, Josh Pletcher, Kyle Davis
Advancing Natural History Research Using The Collections Of The Owu Brant Museum Of Zoology, Josh Pletcher, Kyle Davis
Student Symposium
Natural history collections are important repositories of biological and geological material. Biological collections provide raw data to interpret the ecology, anatomy, and evolution of living and fossil organisms. OWU’s zoological collections play an important role in undergraduate research and educating future preparators. Two projects are currently in progress: Kyle Davis’ work on size variation in house sparrows and Josh Pletcher’s work digitizing OWU’s collection of Ward’s fossil casts. We travelled to museums in New York and Connecticut to further pursue our research. Kyle Davis’ research focuses on Bergmann’s Rule, which states that as temperature decreases, body size increases, decreasing surface …
Studying The Social Behavior And Preferences Of Polar Bears At The Columbus Zoo And Aquarium, Molly Seeberger
Studying The Social Behavior And Preferences Of Polar Bears At The Columbus Zoo And Aquarium, Molly Seeberger
Student Symposium
Polar bears (Ursus maritimus) are relatively solitary animals unless it is breeding season. At the Columbus Zoo and Aquarium, the polar bears participate in the Species Survival Plan where breeding for conservation efforts is encouraged. Lee, an 19-year-old male, came to the Columbus Zoo and Aquarium in the Fall of 2018 in hopes of breeding with 12-year-old twin females Aurora and Anana. Because Lee’s previous experience was only living with one female, I wanted to observe whether he would prefer a particular female because he now had two females to choose from. Not only did I look for preference, but …
Human Music Genre Recognition In Goldfish, Makali Haines, Sophia Hallam
Human Music Genre Recognition In Goldfish, Makali Haines, Sophia Hallam
Student Symposium
Music plays a big role in our daily lives, but when it comes to the animal world many species don’t react to our music, but that’s not to say they can’t react. In a previous study by scientists at Israeli Technion Institute of Technology and lead by Kazutaka Shinozuka in 2013 goldfish didn’t show a preference towards an example of our music but rather they showed and discrimination and avoidance to one. From that we hypothesized that goldfish could be trained to discriminate human made music genres from certain sound cues. The goldfishes’ tests did not come out significant, but …
Laboratory Mice Burrowing Responses To Predator Calls, Katie Vonderembse, Brianna Graber, Molly Seeberger
Laboratory Mice Burrowing Responses To Predator Calls, Katie Vonderembse, Brianna Graber, Molly Seeberger
Student Symposium
The avoidance of predation is an essential trait in mice and depends on the ability of the mouse to recognize its predators. It is predicted that the calls of predators act as stimuli which signal the presence of potential danger. Laboratory mice have been shown to respond with defensive behaviors, such as burrowing, when exposed to the the calls of predators. To test how mice respond to different predator calls, we will play the sounds of three owls, Eastern Screech Owl,Tawny Owl, and American Barn Owl, and look at burrowing behaviors. Human voices reading a book will be used as …
Investigating Crayfish (Orconectes Rusticus) Aggression And How It Varies With Resource Availability, Allie Smith, Rebecca Lipster
Investigating Crayfish (Orconectes Rusticus) Aggression And How It Varies With Resource Availability, Allie Smith, Rebecca Lipster
Student Symposium
Animals that express agonistic behavior toward one another are prone to recognizing hierarchical status among individuals. Recognizing status has proven to be evolutionarily advantageous for crayfish (Orconectes rusticus) because it allows dominant individuals to maximize resources and permits subordinate individuals to steer clear of potentially costly battles. More specifically, two crayfish experiencing aggression can generally determine who the dominant and subordinate individuals are in a fight. A higher social status within a social hierarchy can allow for increased access to differing resources, such as food, mates, and shelter. In this experiment, we want to see if limiting resources will affect …
Size Increase With Altitude In The Rufous-Collared Sparrow (Zonotrichia Capensis), Kyle Davis
Size Increase With Altitude In The Rufous-Collared Sparrow (Zonotrichia Capensis), Kyle Davis
Student Symposium
Heat is generated by the body volume and lost across its surface. Therefore larger homeotherms with their proportionately larger volume and smaller surface area will withstand cold better than small homeotherms, which has been addressed in some basic ecological principles. Bergmann’s Rule indicates that organisms at higher latitudes (and therefore lower temperatures) will be larger than those at lower latitudes, and Allen’s Rule indicates that appendage size is generally smaller in cooler temperatures. Both Bergmann’s and Allen’s rules relate body size to latitude and/or temperature, but environmental temperature also changes with altitude. We tested the possible relationship between body size …
Unlocking The Mysteries Of Merrick's Museum, Josh Pletcher
Unlocking The Mysteries Of Merrick's Museum, Josh Pletcher
Student Symposium
No abstract provided.
Further Investigation Of A Novel Rhabditid Nematode, Evan Hudgens, Nathan Schmidt
Further Investigation Of A Novel Rhabditid Nematode, Evan Hudgens, Nathan Schmidt
Student Symposium
Nematodes are among the most numerous and widespread animals on earth. The nematode Caenorhabditis elegans is a well-established model organism used for a wide-variety of studies ranging from biomedical to behavioral to ecological, and more. While C. elegans is well characterized, there are thousands of different species of nematodes, many of which have not been studied. We are characterizing several Rhabditid nematodes isolated in association with millipedes from both Ohio and Florida. Sequence analysis of rDNA genes supports that one of the species of worms we isolated is Oscheius myriophila. Other worms we isolated are similar, but we believe may …
Influence Of Sex And Ambient Temperature On Asian Elephant (Elephas Maximus) Dusting Behavior, Kelly Summers
Influence Of Sex And Ambient Temperature On Asian Elephant (Elephas Maximus) Dusting Behavior, Kelly Summers
Student Symposium
Previous studies indicate that elephant dusting behavior can be promoted by several factors including environmental temperature and social interaction. We hypothesized that (1) if dusting serves as a voluntary thermoregulatory function, then increased ambient temperature would result in increased dusting performance, and (2) if dusting is influenced by social interactions, then male and female elephants will exhibit dusting at similar rates in a group setting. Preliminary data indicated no significant relationship between temperature and the rate of dustings performed. Contrary to our predictions, females exhibited a greater rate of dusting than males in a social environment. The current study reexamines …