Animal Studies Commons^™

Faire Comme Les Castors : Un Idéal D’Organisation Du Travail En Nouvelle-France Dans Les Écrits De Nicolas Denys, Éric Debacq

The Goose

Nicolas Denys (1603?-1688), commerçant français, publie en 1672 deux livres, la Description geographique et historique des costes de l’Amerique septentrionale et l’Histoire naturelle des peuples, des animaux, des arbres & plantes de l’Amerique septentrionale & de ses divers climats. Dans ces livres, il témoigne de ses tentatives de colonisation en Acadie pendant près de quarante ans et énumère les possibilités économiques de ce territoire, notamment liées à la pêche à la morue. Denys, dans cette œuvre, fait aussi l’éloge du castor, qu’il compare à l’homme. Ceci est à double tranchant : l’animal, dont on célèbre l’intelligence, devient alors …

Sequential Analysis Of Livestock Herding Dog And Sheep Interactions, Jonathan Early, Jessica Alders, Elizabeth R. Arnott, Claire M. Wade, Paul Mcgreevy

Interactive Behavior Collection

Livestock herding dogs are crucial contributors to Australian agriculture. However, there is a dearth of empirical studies of the behavioural interactions between dog and livestock during herding. A statistical approach that may reveal cause and effect in such interactions is lag sequential analysis. Using 48 video recordings of livestock herding dogs and sheep in a yard trial competition, event-based (time between behaviours is irrelevant) and time-based (time between behaviours is defined) lag sequential analyses identified several significant behavioural interactions (adjusted residuals greater than 2.58; the maximum likelihood-ratio chi-squared statistic for all eight contingency tables identified all sequences as highly significant …

African Naked Mole-Rat Colony Behavior Based On Whole Colony Radio Frequency Identification (Colony Tt-2, April 2015), Dan Mccloskey, Michael E. Kress

Publications and Research

This file contains Radio Frequency Identification (RFID) data for routine activity of members of the TT-2 colony during a 26 day period in April 2015. The data are organized into a state matrix where the last known location for each of the 49 animals in the colony is listed in each row. A new row means that the raw data file updated the location of one animal. The leftmost column gives the date and time of the event, the headers for the other 49 columns give the RFID code for each of the animals in the colony. Animals demonstrated to …

Juvenile Rank Acquisition Is Associated With Fitness Independent Of Adult Rank, Eli D. Strauss, Daizaburo Shizuka, Kay E. Holekamp

School of Biological Sciences: Faculty Publications

Social rank is a significant determinant of fitness in a variety of species. The importance of social rank suggests that the process by which juveniles come to establish their position in the social hierarchy is a critical component of development. Here, we use the highly predictable process of rank acquisition in spotted hyenas to study the consequences of variation in rank acquisition in early life. In spotted hyenas, rank is ‘inherited’ through a learning process called ‘maternal rank inheritance.’ This pattern is very consistent: approximately 80% of juveniles acquire the exact rank expected under the rules of maternal rank inheritance. …

Sea Wrack Delivery And Accumulation On Islands: Factors That Mediate Marine Nutrient Permeability, Sara B. Wickham, Nancy Shackelford, Chris T. Darimont, Wiebe Nijland, Luba Y. Reshitnyk, John D. Reynolds, Brian M. Starzomski

Biogeography and Ecological Opportunity Collection

Sea wrack provides an important vector of marine-derived nutrients to many terrestrial environments. However, little is known about the processes that facilitate wrack transport, deposition, and accumulation on islands. Three broad factors can affect the stock of wrack along shorelines: the amount of potential donor habitat nearby, climatic events that dislodge seaweeds and transfer them ashore, and physical characteristics of shorelines that retain wrack at a site. To determine when, where, and how wrack accumulates on island shorelines, we surveyed 455 sites across 101 islands in coastal British Columbia, Canada. At each site, we recorded wrack biomass, species composition, and …

A Neural Mechanism For Capnotaxis In The Naked Mole-Rat, Michael Zions

Dissertations, Theses, and Capstone Projects

A Neural Mechanism for Capnotaxis in the Naked Mole-Rat

The Naked Mole-Rat (NM-R) is a small hairless rodent that has thrived underground in the Horn of Africa for the past 40 million years. It was first discovered in 1847, but has only been maintained in captivity and studied as a laboratory animal over the past 40 years. To date, more than 400 scientific papers have been published on this species. This is relatively few compared to established lab animals like rats and mice, but those papers contain a trove of information that has changed our understanding of the constraints of …

Social Referencing In The Domestic Horse, Anne Schrimpf, Marie-Sophie Single, Christian Nawroth

Recognition Collection

Dogs and cats use human emotional information directed to an unfamiliar situation to guide their behavior, known as social referencing. It is not clear whether other domestic species show similar socio-cognitive abilities in interacting with humans. We investigated whether horses (n = 46) use human emotional information to adjust their behavior to a novel object and whether the behavior of horses differed depending on breed type. Horses were randomly assigned to one of two groups: an experimenter positioned in the middle of a test arena directed gaze and voice towards the novel object with either (a) a positive or (b) …

Spontaneous Appearance And Transmission Of Polydactyly In Dexter Cattle, Richard Browning Jr., Emily G. Hayes, Andrea S. Lear

Agricultural and Environmental Sciences Faculty Research

A 3-yr-old Dexter cow and her yearling Dexter heifer calf exhibited polydactyly. Neither animal was linebred within 5 generations. This cow-calf pair represented the first reported occurrence of polydactyly in Dexter cattle in the US or abroad. Based upon external examination, the cow was classified as having a spontaneous unilateral case of polydactyly with an extra digit along the medial digit of the right front limb and the heifer was classified as having bilateral polydactyly because both front limbs exhibited an extra digit along the medial digit. Radiographic examination confirmed bilateral status of the heifer and revealed bilateral status of …

Picture Perfect Pups: How Do Attributes Of Photographs Of Dogs In Online Rescue Profiles Affect Adoption Speed?, Mizuho Nakamura, Navneet Dhand, Bethany J. Wilson, Melissa J. Starling, Paul D. Mcgreevy

Rescue and Surrender of Companion Animals Collection

To increase the public’s awareness of and exposure to animals needing homes, PetRescue, Australia’s largest online directory of animals in need of adoption, lists all currently available animals from rescue and welfare shelters nationwide. The current study examined the photographs in the PetRescue online profiles of the three most common breeds within these data, namely, Staffordshire bull terriers (n = 3988), Labrador retrievers (n = 2246), and Jack Russell terriers (n = 2088), to identify the inferred preferences of potential adopters. By investigating the attributes of these photographs, we were able to identify visual risk factors associated with protracted lengths …

Musical Dogs: A Review Of The Influence Of Auditory Enrichment On Canine Health And Behavior, Abigail Lindig, Paul Mcgreevy, Angela Crean

Stress Collection

Music therapy yields many positive health outcomes in humans, but the effects of music on the health and welfare of nonhuman animals vary greatly with the type of music played, the ethology of the species, and the personality and learning history of individual animals. One context in which music therapy may be used to enhance animal welfare is to alleviate stress in domestic environments. Here, we review studies of the effects of music exposure on dogs as a case study for the implementation of music therapy in veterinary medicine. Nine reports of experimental testing for the therapeutic effects of music …

Exploring The Use Of A Qualitative Behavioural Assessment Approach To Assess Emotional State Of Calves In Rodeos, Sally Rizzuto, Di Evans, Bethany Wilson, Paul Mcgreevy

Rodeo Competitions Collection

There are longstanding disagreements between the rodeo industry stakeholders and animal welfare advocates about the wellbeing of the animals used in events. The current study aims to determine whether qualitative behavioural assessment (QBA) is effective in identifying the emotional state of calves in so-called calf-roping events. Still images of calves captured from videos of calf-roping were shown to two groups: practitioners (n = 7) and students (n = 16). For each image, they scored (on a scale of 1–10) 12 descriptive terms—e.g., stressed, energetic, confused, frightened—based on how strongly they thought the animal was experiencing that emotion. Scores were analysed …

Does Clicker Training Lead To Faster Acquisition Of Behavior For Dog Owners?, Brian J. Burton

Theses and Dissertations

Clicker training is a method of dog training that has increased in popularity over the past 20 years (Feng et al., 2017). However, while there has been an increased use of clicker training, studies examining the claims that clicker training leads to faster acquisition of new behavior (Skinner, 1951; Pryor, 1999) has only been investigated in a handful of studies with domesticated animals. In addition, all known published studies comparing a clicker-plus-food group to a food-only group have found no significant difference in acquisition of a novel behavior (Dorey & Cox, 2018; Feng et al. 2017), which suggests that a …

Naturalness And The Legitimacy Of Thoroughbred Racing: A Photo-Elicitation Study With Industry And Animal Advocacy Informants, Iris Bergmann

Horse racing and competitions

The idea of what is natural has particular relevance in the thoroughbred racing and breeding discourse. It guides breeding regulations; influences how the thoroughbreds’ behaviour is perceived and has implications for husbandry, handling, training and racing practices. This study investigates how key industry and animal advocacy informants based in the US, Australia and the UK conceptualise naturalness within the context of common racing practices that potentially impact the horses’ welfare. The informants were interviewed using semi-structured interviewing and photo-elicitation. Four common images of thoroughbreds on race day were presented to elicit the informants’ responses. Differences emerged between how the two …

Social Learning In Solitary Juvenile Sharks, Catarina Vila Pouca, Dennis Heinrich, Charlie Huveneers, Culum Brown

Social Behavior Collection

Social learning can be a shortcut for acquiring locally adaptive information. Animals that live in social groups have better access to social information, but gregarious and nonsocial species are also frequently exposed to social cues. Thus, social learning might simply reflect an animal's general ability to learn rather than an adaptation to social living. Here, we investigated social learning and the effect of frequency of social exposure in nonsocial, juvenile Port Jackson sharks, Heterodontus portusjacksoni. We compared (1) Individual Learners, (2) Sham-Observers, paired with a naïve shark, and (3) Observers, paired with a trained demonstrator, in a novel foraging task. …

Novel Mechanism For Turning Performance In Bluefin Tuna, Abigail Downs

West Chester University Master’s Theses

Scombrid fishes can attain exceptional swimming speeds due to their thunniform, lift-based propulsion, large muscle mass, and fusiform body shape. A rigid body restricts maneuverability for aquatic organisms. To test if turning maneuvers by the rigid-bodied Pacific bluefin tuna (Thunnus orientalis) are constrained, captive animals were video recorded from above as the animals routinely swam around a large circular tank or during feeding bouts. The turning performance was classified into three different types of turns: 1) glide turn, where the tuna uses the caudal fin as a rudder to passively move through the turn, 2) powered turn, where …

Intraspecific Aggression Towards Common Bottlenose Dolphin Calves, Northern Gulf Of Mexico, Errol Ronje, Sarah Piwetz, Heidi Whitehead, Keith D. Mullin

Gulf and Caribbean Research

Infanticide has been widely documented throughout the animal kingdom, and has generally been viewed as an evolved, or adaptive behavior for the perpetrators. Infanticide motivated by increased sexual access to females with calves, or the elimination of potential genetic competition in the form of calf-directed aggression or infanticide, has been proposed for delphinids including killer whales, Indo-Pacific humpback dolphins, Guiana dolphins, and bottlenose dolphins. However, reports of intraspecific aggression towards bottlenose dolphin calves are relatively infrequent, and accounts of confirmed infanticide are rarer still. Reporting instances of intraspecific calf-directed aggression aids researchers to better understand the socio-behavioral context of these …

Safety Concepts For Every Ride: A Statistical Ensemble Simulation To Mitigate Rotational Falls In Eventing Cross Country, Shannon Wood

Theses and Dissertations--Mechanical and Aerospace Engineering

Rotational falls are the leading cause of death and serious injury in the equestrian sport of eventing. Previous studies to develop safety devices used physical models representing one or at most several physical situations leading to different designs and no common understanding. In this thesis, a statistical ensemble model is developed and applied to generate and evaluate 10,000 different situations that might potentially lead to rotational falls. For accurate statistical representation of the horse and rider inertia distributions, measurements of over 400 training or competing horses and riders were recorded and incorporated. Video was recorded of 218 total competitors approaching …

Diet Of A Recently Reintroduced River Otter (Lontra Canadensis) Population In Taos County, New Mexico, Gabriela Alexandra Wolf-Gonzalez

Theses and Dissertations--Forestry and Natural Resources

North American river otters (Lontra canadensis), native to every U.S. state and Canada, experienced extensive population decreases and range reduction until the mid-20th century as a result of overexploitation and habitat loss during European colonization. The last known river otter in New Mexico was killed on the Gila River in 1953, although unverified reports continued thru 2008. After a nearly 60-year absence from New Mexico, 33 adult river otters were reintroduced to the Rio Pueblo de Taos in the northern part of the state between 2008-2010; however, they were not subsequently monitored or studied. I characterized diet of …

Neuroanatomy Of The Blackspotted Rockskipper, Entomacrodus Striatus, Pooja Dayal

Williams Honors College, Honors Research Projects

Here I characterized the central neuroanatomy of the Blackspotted Rockskipper, Entomacrodus striatus, native to French Polynesia. The neuroanatomy of E. striatus has not been studied prior to this paper. I used several histology and antibody staining techniques to accomplish this, including Crystal Violet, immunohistochemistry, immunofluorescence, and Bielschowsky’s Silver Nitrate staining. This paper describes the most successful techniques used, identifies major structures in the species’ neuroanatomy, and also explains why studying E. striatus is important in the future of vertebrate research.

Effects Of Different Housing Configurations On Captive Chimpanzee (Pan Troglodytes) Behavior In Holding Area During Construction, Kailyn Campbell

All Master's Theses

In this study, I explored the behaviors, social interactions, and effects different housing configurations on chimpanzees in a zoological environment during a period of construction. I collected noninvasive, observational data at the Oregon Zoo in Portland, Oregon on a small group of chimpanzees, three females and one male, between the ages of 45 and 50 that are split daily into two separate groups of two. I used the focal animal sampling method to record behaviors from an adapted ethogram. I hypothesized that the Oregon Zoo chimpanzees would behave differently depending on which chimpanzee they were housed with. I predicted that …