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Synchrony in adult male Atlantic Spotted Dolphins (Stenella frontalis) during aggression
Title
Synchrony in adult male Atlantic Spotted Dolphins (Stenella frontalis) during aggression.
Creator
Myers, Alyson J., Bjorklund, David F., Herzing, Denise L., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
Abstract/Description
Synchrony between Atlantic spotted dolphins (Stenella frontalis) is crucial for successfully fending off bottlenose dolphins (Tursiops truncatus) during interspecies aggression. The present study examined synchrony in adult Atlantic spotted dolphins during aggressive encounters with bottlenose dolphins. Across group size, aggressive behavioral events increased preceding synchrony, peaked during synchrony, and decreased dramatically after synchrony. Although smaller groups ( 10 dolphins),...
Show moreSynchrony between Atlantic spotted dolphins (Stenella frontalis) is crucial for successfully fending off bottlenose dolphins (Tursiops truncatus) during interspecies aggression. The present study examined synchrony in adult Atlantic spotted dolphins during aggressive encounters with bottlenose dolphins. Across group size, aggressive behavioral events increased preceding synchrony, peaked during synchrony, and decreased dramatically after synchrony. Although smaller groups (< 10 dolphins) became synchronous more frequently than larger groups (> 10 dolphins), larger groups remained synchronous longer; however, smaller groups exhibited more frequent aggressive behavioral events during synchrony, suggesting that additional aggressive behaviors may be necessary to compensate for the small group size, whereas larger groups may be able to rely on synchrony alone. Disorganized squawk bouts synchronized as physical synchrony began, but only if coupled with escalating aggressive behaviors. The synchrony during aggressive episodes observed in adult Atlantic spotted dolphins can be used as a baseline to determine the process of the development of this critical skill in juveniles.
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Date Issued
2015
PURL
http://purl.flvc.org/fau/fd/FA00004454
Subject Headings
Atlantic spotted dolphin, Atlantic spotted dolphin -- Behavior -- Research, Bottle nose dolphin, Bottle nose dolphin -- Behavior -- Research, Dolphins, Social behavior in animals
Format
Document (PDF)
Personality Traits in Atlantic Spotted Dolphins (Stenella Frontalis): Syndromes and Predictors of Neophilia
Title
Personality Traits in Atlantic Spotted Dolphins (Stenella Frontalis): Syndromes and Predictors of Neophilia.
Creator
Skrzypczak, Nathan, Herzing, Denise L., Detwiler, Kate M., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
Personality is defined as inter-individual variation of behavioral traits while maintaining intra-individual stability. The focus of this study was to observe distinct personality trait categories, establish baseline personality trait phenotypes for the juvenile population, and compare the personality phenotypes between different categories, such as sex or generation. Three personality traits were studied—sociability, curiousity, and boldness—based on the percentage of time individuals spent...
Show morePersonality is defined as inter-individual variation of behavioral traits while maintaining intra-individual stability. The focus of this study was to observe distinct personality trait categories, establish baseline personality trait phenotypes for the juvenile population, and compare the personality phenotypes between different categories, such as sex or generation. Three personality traits were studied—sociability, curiousity, and boldness—based on the percentage of time individuals spent with conspecifics, human researchers, and their mothers, respectively. The surveyed individuals significantly varied positively and negatively from the means of each trait, and no significant difference for any trait was found between males and females, or across time periods. A moderately strong correlation was discovered between two personality traits, boldness and curiousity, suggesting a personality syndrome. The second primary goal was to use the aforementioned baseline to determine if personality traits can be used to predict neophilic behavior specific to human-dolphin communication research. Six of the study subjects were more prone than their peers to engage with the two-way work, and these individuals were more bold—spent less time with their mothers—than the other subjects. This suggests that boldness has some predictive capabilities towards this type of neophilia.
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Date Issued
2016
PURL
http://purl.flvc.org/fau/fd/FA00004680, http://purl.flvc.org/fau/fd/FA00004680
Subject Headings
Animal behavior, Animal societies, Atlantic spotted dolphin -- Behavior -- Research, Cognition in animals, Social behavior in animals
Format
Document (PDF)
Does size really matter
Title
Does size really matter: how synchrony and size affect the dynamic of aggression between two sympatric species of dolphin in the Bahamas.
Creator
Cuksick, Jessica A., Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
Bottlenose (Tursiops truncatus) and spotted (Stenella frontalis) dolphins are sympatric species, resident to Little Bahama Bank, Bahamas. A unique, dynamic methodology quantified how interspecific aggression changed over time in terms of the individuals participating, context, and behaviors used. The timing of human observation relative to the onset of aggression did not result in differences in the proportion of behaviors observed. Highly intense behaviors were used most often. The...
Show moreBottlenose (Tursiops truncatus) and spotted (Stenella frontalis) dolphins are sympatric species, resident to Little Bahama Bank, Bahamas. A unique, dynamic methodology quantified how interspecific aggression changed over time in terms of the individuals participating, context, and behaviors used. The timing of human observation relative to the onset of aggression did not result in differences in the proportion of behaviors observed. Highly intense behaviors were used most often. The synchronous state of spotted dolphin groups, not the presence alone, was a crucial factor in determining the onset and progression of aggression. When synchronous, spotted dolphins successfully dominated the larger bottlenose dolphins. Two levels of dominance were observed. Within a single encounter ("encounter level"), one species did dominate the other. When all aggressive encounters were considered collectively over the long term ("gross level"), one species did not dominate the other. The combination of contextual factors best determined the dynamic of interspecific aggression.
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Date Issued
2012
PURL
http://purl.flvc.org/FAU/3342044
Subject Headings
Bottlenose dolphin, Behavior, Research, Atlantic spotted dolphin, Behavior, Research, Mammals, Behavior, Aggressive behavior in animals
Format
Document (PDF)