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Articles 1 - 11 of 11
Full-Text Articles in Behavior and Ethology
The Effects Of Copper Exposure On Fish Locomotion And Predator-Prey Interactions, Tiffany N. Yanez
The Effects Of Copper Exposure On Fish Locomotion And Predator-Prey Interactions, Tiffany N. Yanez
FIU Electronic Theses and Dissertations
This study determined the effects of the copper water quality criterion (WQC) by the EPA on [1] swimming performance and [2] predator-prey interactions of the Sailfin Molly, across a salinity gradient. Fish acclimated to FW (0 ppt) and 8-ppt saltwater were exposed to 11.3 and 8.44 µg/L Cu for 96 h, respectively. At the end of the exposures, fish swimming performance was determined by using the critical swimming speed, Ucrit, the speed at which a fish cannot longer maintain position in the water column. Ucritwas then measured again after a 4-week depuration period to determine if …
Bubble Stream Production By Belugas (Delphinapterus Leucas), Megan Slack
Bubble Stream Production By Belugas (Delphinapterus Leucas), Megan Slack
Theses
Bubble stream production in belugas has been poorly characterized and its function is not well understood. I examined behavioral states when producing bubble streams (“bubbling”), and when bubbling calls, to determine whether bubbling was significantly associated with a particular call category or behavioral state. Using 19 hours of video and audio recordings collected over a two-day period, I quantified bubble streams of a 4-month old calf and an unrelated adult female housed together. Based on the overall activity budgets and pool of vocalizations for both animals, I calculated the expected counts of bubble streams with and without vocalizations, assuming that …
Territorial Behavior In Southern Red-Backed And Ozark Zigzag Salamanders: Effects Of Sex, Species, And Ownership, Colton Savage Lynn
Territorial Behavior In Southern Red-Backed And Ozark Zigzag Salamanders: Effects Of Sex, Species, And Ownership, Colton Savage Lynn
MSU Graduate Theses
Territorial disputes are common among terrestrial woodland salamanders (genus Plethodon). Males and females of both Ozark zigzag (P. angusticlavius) and southern red-backed (P. serratus) salamanders are territorial, but differing costs and benefits between sexes may influence the expression of territorial behavior. I compared the competitive and exploratory behavior of males and females of both species in laboratory experiments. Competitive behavior was assessed through staged contests between same-sex, same-sized conspecifics. There were no differences between males and females for territory owners (residents). Female intruders were more aggressive than male intruders, spending more time in and performing higher grades …
An Evaluation Of Deterrent Methods Utilized To Prevent Crop Raiding By African Elephants (Loxodonta Africana) In The Kasigau Wildlife Corridor, Kenya, Rebecca Lynn Von Hagen
An Evaluation Of Deterrent Methods Utilized To Prevent Crop Raiding By African Elephants (Loxodonta Africana) In The Kasigau Wildlife Corridor, Kenya, Rebecca Lynn Von Hagen
Masters Theses & Specialist Projects
Escalating human elephant conflict (HEC) continues to be a contributing factor
towards elephant decline, and crop raiding is the most common form of negative
human-elephant interactions. For communities that cannot reverse or prevent crop
raiding, it is necessary to contain HEC events through deterrent measures. Few
deterrent measures exist that combine practicality and affordability while also
preventing habituation by elephants. This project focused on comparing the efficacy of
deterrent methods to assess which was the most successful at preventing elephants
from entering crops in the farming community of Sasenyi, Kenya. In this paired-control
study, four deterrent methods were evaluated: acacia …
Personality In California Sea Lions (Zalophus Californianus) And Harbor Seals (Phoca Vitulina): Methodological Convergence And Species-Specific Emotional Repertoires, Amber De Vere
Dissertations
Despite the wide acceptance of animal personality as a valid area of study, research on marine mammal personality remains remarkably scarce. What literature does exist predominantly focuses on bottlenose dolphins (Frick, 2016; Highfill & Kuczaj, 2007; Kuczaj, Highfill & Byerly, 2012; Lilley, de Vere, Yeatre & Kuczaj, 2018; Moreno, Highfill & Kuczaj, 2017). There is also strong evidence for individual differences in grey seals (Robinson et al., 2015; Twiss & Franklin, 2010; Twiss, Culloch & Pomeroy, 2011; Twiss, Cairns, Culloch, Richards & Pomeroy, 2012), and preliminary research has provided evidence of broad personality factors in pinniped species using behavioral coding …
Determining The Physiological And Behavioral Methods Of Salinity Tolerance In Corbicula Fluminea, John Warren Roden Iii
Determining The Physiological And Behavioral Methods Of Salinity Tolerance In Corbicula Fluminea, John Warren Roden Iii
Appalachian Student Research Forum
While a significant degree of salinity tolerance has been observed in the bivalve mollusk species Corbicula fluminea, the physiological and behavioral responses to changes in salinity by these organisms are not completely understood. It was hypothesized that Corbicula would initially avoid any salinity stress behaviorally through valve closure, but would eventually have to open to dispel anaerobic waste products and deal with the salinity. To explore this, Corbicula were collected and put through a series of experiments at salinity exposures of 0, 2.5, and 5.0ppt, with tissue water content and hemolymph osmolality being measured. After an initial 96-hour exposure …
The Effect Of Physical Stress Signals On Conspecific Interactions In Green-And-Black Poison Frogs (Dendrobates Auratus), Gabriella E. Chan, Maxwell A. Kenyon, Summer Ngo, Lee B. Kats
The Effect Of Physical Stress Signals On Conspecific Interactions In Green-And-Black Poison Frogs (Dendrobates Auratus), Gabriella E. Chan, Maxwell A. Kenyon, Summer Ngo, Lee B. Kats
Seaver College Research And Scholarly Achievement Symposium
Amphibian declines have been a major focus of the scientific community for nearly three decades. Many studies describe the leading causes of amphibian decline related to disease, with chytridiomycosis as the most notable example. However, little is known about behavioral conspecific interactions among ill or stressed amphibians, particularly neotropical species. Previous observational research on poison frogs determined that stressed Dendrobates auratus flip onto their backs in a reaction that is similar to fainting in other species. In this study, we examine conspecific interactions of green-and-black poison frogs (D. auratus) with “healthy” and “sick” model frogs, in order to …
Effects Of Rearing Environment On Behavior Of Captive-Reared Whooping Cranes, Christy L. Sadowski, Glenn H. Olsen, M. Elsbeth Mcphee
Effects Of Rearing Environment On Behavior Of Captive-Reared Whooping Cranes, Christy L. Sadowski, Glenn H. Olsen, M. Elsbeth Mcphee
Proceedings of the North American Crane Workshop
Whooping cranes (Grus americana) are 1 of the most endangered bird species in North America. In 1999 the Whooping Crane Eastern Partnership was formed to establish a migratory population of whooping cranes in eastern North America. These efforts have been extremely successful in terms of adult survival but reproductive success post-release has been low. One hypothesis developed to explain such low reproductive success is that captive-rearing techniques fail to prepare the birds to be effective parents. Captive-reared whooping cranes at the U.S. Geological Survey, Patuxent Wildlife Research Center, Laurel, Maryland, are either reared by humans in crane costumes …
Consequences Of Porcine Zona Pellucida Immunocontraception To Feral Horses, Cassandra M.V. Nuñez
Consequences Of Porcine Zona Pellucida Immunocontraception To Feral Horses, Cassandra M.V. Nuñez
Human–Wildlife Interactions
Porcine zona pellucida (PZP) immunocontraception was developed to provide a more humane, effective, and inexpensive method of population regulation for wildlife species. It has been used to regulate populations of several species including white tailed deer (Odocoileus virginianus), elk (Cervus elaphus ), black bear (Ursus americanus ), and the feral horse (Equus ferus caballus) with varying levels of success. Early studies on Assateague Island National Seashore, Maryland, USA, suggested PZP was as an ideal form of fertility control because it reduced the likelihood of conception to
Use Of A Two-Action Paradigm Apparatus With Captive Lemurs: Insights Into Social Learning, Carly Batist
Use Of A Two-Action Paradigm Apparatus With Captive Lemurs: Insights Into Social Learning, Carly Batist
All Master's Theses
Lemurs have been understudied in cognitive research despite possessing a unique phylogenetic position as the lineage linking primates to other mammals. I used a two-action paradigm apparatus to test social learning abilities in seven lemur species at the Duke Lemur Center. There were three groups: push (had model previously taught to push), pull (had model previously taught to pull), and control (no model). I conducted experimental trials to determine if lemurs in push/pull groups learned faster and more efficiently from the model than lemurs in control groups who lacked a model to observe. I found evidence of social facilitation in …
Variation In Mass And Wing Loading Of Nestling American Kestrels: Possible Effects Of Nestling Behavior And Adult Provisioning Behavior, Doug Mitchell
Variation In Mass And Wing Loading Of Nestling American Kestrels: Possible Effects Of Nestling Behavior And Adult Provisioning Behavior, Doug Mitchell
Online Theses and Dissertations
Among birds, the rapid growth rates of altricial young help reduce mortality by reducing the amount of time spent in the nest. However, in species where a high degree of maneuverability and speed is required (i.e. aerial insectivores), it is important that nestlings not gain excess weight. Nestlings in some species must attain an efficient wing loading just prior to fledging to facilitate mobility for hunting and evading predators. My objective was to examine the mass of nestling American Kestrels (Falco sparverius) during the mid- to late nestling period and specifically to determine the possible effects of attaching small lead …