Percussive Behavior in the Southern Resident Killer Whale (Orcinus orca) Population at Lime Kiln Point State Park
The endangered Southern Resident Killer Whale (Orcinus orca, SRKW) is an iconic species in the Pacific Northwest. Although many ecological aspects of this population have been studied, including population dynamics, genealogy, diet, and habitat-use patterns, why SRKW perform above-surface "perc...
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ftutahsudc:oai:digitalcommons.usu.edu:honors-1530 2023-05-15T17:03:24+02:00 Percussive Behavior in the Southern Resident Killer Whale (Orcinus orca) Population at Lime Kiln Point State Park Jensen, Rylee 2019-05-01T07:00:00Z application/pdf https://digitalcommons.usu.edu/honors/522 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1530&context=honors unknown DigitalCommons@USU https://digitalcommons.usu.edu/honors/522 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1530&context=honors Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. PDM Undergraduate Honors Capstone Projects Southern Resident Killer Whale Orcinus orca percussive behavior in Southern Resident Killer Whale seasonal frequency of percussive behaviors Lime Kiln Point State Park Animal Sciences Ecology and Evolutionary Biology Other Ecology and Evolutionary Biology text 2019 ftutahsudc 2022-03-07T22:01:54Z The endangered Southern Resident Killer Whale (Orcinus orca, SRKW) is an iconic species in the Pacific Northwest. Although many ecological aspects of this population have been studied, including population dynamics, genealogy, diet, and habitat-use patterns, why SRKW perform above-surface "percussive" behavior such as breaching, cartwheeling, pectoral fin slapping, tail lobbing, and dorsal fin slapping remains unclear. In the present study, a) individual percussive behavioral data was recorded during the summer of 2016 to evaluate trends by age and sex class, and b) an existing long-term data set on SRKW was analyzed to compare the relationship between the seasonal frequency of percussive behaviors from 1996-2016 and the abundance of Chinook salmon (the primary food source of SRKW) during this time. Over the course of the 2016 season in which SRKW were present in Haro Strait, Washington, USA, we documented 24 encounters involving percussive behavior. We found a significant difference between the rate of percussive behavior performed between ages and sexes, with adult females ranking highest among these groups. We also found a significant relationship between the frequency of percussive behavior and average Chinook salmon catch per unit effort (CPUE) during our study period over the past two decades. Text Killer Whale Orca Orcinus orca Killer whale Utah State University: DigitalCommons@USU Haro ENVELOPE(-59.783,-59.783,-62.533,-62.533) Pacific |
institution |
Open Polar |
collection |
Utah State University: DigitalCommons@USU |
op_collection_id |
ftutahsudc |
language |
unknown |
topic |
Southern Resident Killer Whale Orcinus orca percussive behavior in Southern Resident Killer Whale seasonal frequency of percussive behaviors Lime Kiln Point State Park Animal Sciences Ecology and Evolutionary Biology Other Ecology and Evolutionary Biology |
spellingShingle |
Southern Resident Killer Whale Orcinus orca percussive behavior in Southern Resident Killer Whale seasonal frequency of percussive behaviors Lime Kiln Point State Park Animal Sciences Ecology and Evolutionary Biology Other Ecology and Evolutionary Biology Jensen, Rylee Percussive Behavior in the Southern Resident Killer Whale (Orcinus orca) Population at Lime Kiln Point State Park |
topic_facet |
Southern Resident Killer Whale Orcinus orca percussive behavior in Southern Resident Killer Whale seasonal frequency of percussive behaviors Lime Kiln Point State Park Animal Sciences Ecology and Evolutionary Biology Other Ecology and Evolutionary Biology |
description |
The endangered Southern Resident Killer Whale (Orcinus orca, SRKW) is an iconic species in the Pacific Northwest. Although many ecological aspects of this population have been studied, including population dynamics, genealogy, diet, and habitat-use patterns, why SRKW perform above-surface "percussive" behavior such as breaching, cartwheeling, pectoral fin slapping, tail lobbing, and dorsal fin slapping remains unclear. In the present study, a) individual percussive behavioral data was recorded during the summer of 2016 to evaluate trends by age and sex class, and b) an existing long-term data set on SRKW was analyzed to compare the relationship between the seasonal frequency of percussive behaviors from 1996-2016 and the abundance of Chinook salmon (the primary food source of SRKW) during this time. Over the course of the 2016 season in which SRKW were present in Haro Strait, Washington, USA, we documented 24 encounters involving percussive behavior. We found a significant difference between the rate of percussive behavior performed between ages and sexes, with adult females ranking highest among these groups. We also found a significant relationship between the frequency of percussive behavior and average Chinook salmon catch per unit effort (CPUE) during our study period over the past two decades. |
format |
Text |
author |
Jensen, Rylee |
author_facet |
Jensen, Rylee |
author_sort |
Jensen, Rylee |
title |
Percussive Behavior in the Southern Resident Killer Whale (Orcinus orca) Population at Lime Kiln Point State Park |
title_short |
Percussive Behavior in the Southern Resident Killer Whale (Orcinus orca) Population at Lime Kiln Point State Park |
title_full |
Percussive Behavior in the Southern Resident Killer Whale (Orcinus orca) Population at Lime Kiln Point State Park |
title_fullStr |
Percussive Behavior in the Southern Resident Killer Whale (Orcinus orca) Population at Lime Kiln Point State Park |
title_full_unstemmed |
Percussive Behavior in the Southern Resident Killer Whale (Orcinus orca) Population at Lime Kiln Point State Park |
title_sort |
percussive behavior in the southern resident killer whale (orcinus orca) population at lime kiln point state park |
publisher |
DigitalCommons@USU |
publishDate |
2019 |
url |
https://digitalcommons.usu.edu/honors/522 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1530&context=honors |
long_lat |
ENVELOPE(-59.783,-59.783,-62.533,-62.533) |
geographic |
Haro Pacific |
geographic_facet |
Haro Pacific |
genre |
Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Killer whale |
op_source |
Undergraduate Honors Capstone Projects |
op_relation |
https://digitalcommons.usu.edu/honors/522 https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1530&context=honors |
op_rights |
Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. |
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PDM |
_version_ |
1766057256171864064 |