Current Search: Bottlenose dolphin--Behavior (x)
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- Title
- Vocal behavior of captive Atlantic bottlenose dolphins in a swim program.
- Creator
- Boege, Deborah Dorothy., Florida Atlantic University, Bourne, Godfrey R.
- Abstract/Description
-
Dolphins emit distinct vocalizations in the contexts of stressful situations, such as when captured in nets. It has been assumed among animal rights groups that the presence of human swimmers causes stress in captive Atlantic bottlenose dolphins (Tursiops truncatus). Stress may be expressed in dolphin vocalizations and the associated visual behaviors before, during, and after swim sessions with humans. Thus, these behaviors were recorded to elucidate quantitative vocal patterns suggestive of...
Show moreDolphins emit distinct vocalizations in the contexts of stressful situations, such as when captured in nets. It has been assumed among animal rights groups that the presence of human swimmers causes stress in captive Atlantic bottlenose dolphins (Tursiops truncatus). Stress may be expressed in dolphin vocalizations and the associated visual behaviors before, during, and after swim sessions with humans. Thus, these behaviors were recorded to elucidate quantitative vocal patterns suggestive of conspecific stress. Significant differences among vocalization types within sample sessions were found only for whistles between During II and After sessions. Other comparisons indicated no significant differences for vocalization production frequencies between the presence or absence of human swimmers. Additionally, correlations found among the seven vocalization types and all five sample sessions indicated only that one variable, i.e. the presence or absence of human swimmers, was being measured in several different ways (by the different vocalization type production frequencies). Thus, conspecific stress, if indeed it can be measured by vocalization production frequency, does not appear to occur more often in the presence of human swimmers.
Show less - Date Issued
- 1994
- PURL
- http://purl.flvc.org/fcla/dt/15027
- Subject Headings
- Bottlenose dolphin--Behavior, Animal sounds, Mammals--Behavior
- Format
- Document (PDF)
- Title
- Habitat Use by Bottlenose Dolphins in the Indian River Lagoon.
- Creator
- Greller, Rachael M., Markwith, Scott, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
- Abstract/Description
-
The objective of this research was to examine bottlenose dolphin (Tursiops truncatus) habitat use in the Indian River Lagoon (IRL) based on monthly relocation of photo-identified individuals, prey availability and environmental factors from 2003-2015. We focused on the variation of spatial and temporal abiotic and biotic factors and their influence on bottlenose dolphin habitat use patterns. Harbor Branch Oceanographic Institute (HBOI) conducted monthly photo-identification surveys along the...
Show moreThe objective of this research was to examine bottlenose dolphin (Tursiops truncatus) habitat use in the Indian River Lagoon (IRL) based on monthly relocation of photo-identified individuals, prey availability and environmental factors from 2003-2015. We focused on the variation of spatial and temporal abiotic and biotic factors and their influence on bottlenose dolphin habitat use patterns. Harbor Branch Oceanographic Institute (HBOI) conducted monthly photo-identification surveys along the length of the IRL and GPS locations of photographed dolphins were collected at the time of surveying. Stratified random samples of prey and environmental variables were collected monthly by the Florida Fish and Wildlife Conservation Commission (FWC) as part of the Fisheries-Independent Monitoring (FIM) program. Kernel density estimation was used to determine the magnitude-per-unit area of dolphins across a continuous raster surface of the IRL by wet and dry seasons each year, the values of which were used as a response variable in Classification and regression tree (CART) analyses with FIM fish community and environmental factors as predictors. Understanding how dolphins respond to environmental factors over time in the IRL could be used to predict future responses in estuaries and prioritize conservation and restoration actions.
Show less - Date Issued
- 2019
- PURL
- http://purl.flvc.org/fau/fd/FA00013212
- Subject Headings
- Bottlenose dolphin--Behavior, Indian River (Fla. : Lagoon), Habitat, Harbor Branch Oceanographic Institution
- Format
- Document (PDF)
- Title
- Site fidelity and movement of bottlenose dolphins (Tursiops truncatus) on Florida’s east coast: Atlantic Ocean and Indian River Lagoon estuary.
- Creator
- Mazzoil, Marilyn S., Murdoch, M. Elizabeth, Reif, John S., Bechdel, Sarah E., Howells, Elisabeth M., de Sieyes, Malcolm, Lawrence, C., Bossart, Gregory D., McCulloch, Stephen D.
- Date Issued
- 2011
- PURL
- http://purl.flvc.org/FCLA/DT/3340523
- Subject Headings
- Bottlenose dolphin--Atlantic Coast (U.S.), Tursiops truncatus, Bottlenose dolphin--Behavior, Indian River (Fla. : Lagoon), Animals--Photographic identification
- Format
- Document (PDF)