Comparative and Cumulative Energetic Costs of Odontocete Responses to Anthropogenic Disturbance
Odontocetes respond to vessels and anthropogenic noise by modifying vocal behavior, surface active behaviors, dive patterns, swim speed, direction of travel, and activity budgets. Exposure scenarios and behavioral responses vary across odontocetes. A literature review was conducted to determine rele...
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ftunsanfrancisco:oai:repository.usfca.edu:biol_fac-1053 2023-05-15T17:03:36+02:00 Comparative and Cumulative Energetic Costs of Odontocete Responses to Anthropogenic Disturbance Noren, Dawn P. Holt, Marla M. Dunkin, Robin C. Thometz, Nicole Williams, Terrie M. 2016-01-01T08:00:00Z application/pdf https://repository.usfca.edu/biol_fac/52 https://repository.usfca.edu/cgi/viewcontent.cgi?article=1053&context=biol_fac unknown USF Scholarship: a digital repository @ Gleeson Library | Geschke Center https://repository.usfca.edu/biol_fac/52 https://repository.usfca.edu/cgi/viewcontent.cgi?article=1053&context=biol_fac Biology Faculty Publications Biology text 2016 ftunsanfrancisco 2021-11-30T19:09:21Z Odontocetes respond to vessels and anthropogenic noise by modifying vocal behavior, surface active behaviors, dive patterns, swim speed, direction of travel, and activity budgets. Exposure scenarios and behavioral responses vary across odontocetes. A literature review was conducted to determine relevant sources of disturbance and associated behavioral responses for several odontocete species (bottlenose dolphin, killer whale, harbor porpoise, and beaked whales). The energetic costs of species-specific responses to anthropogenic disturbance were then estimated. The energetic impact varies across species and scenarios as well as by behavioral responses. Overall, the cumulative energetic cost of ephemeral behavioral responses (e.g., performing surface active behaviors, modifying acoustic signals) and modifying swim speeds and activity budgets likely increases daily energy expenditure by ≤4%. In contrast, the reduction in foraging activity in the presence of vessels and/or exposure to sonar has the potential to significantly reduce individuals’ daily energy acquisition. Indeed, across all odontocete species, decreased energy acquisition as a result of reduced foraging undoubtedly has a larger impact on individuals than the increased energy expenditure associated with behavioral modification. This work provides a powerful tool to investigate the biological significance of multiple behavioral responses that are likely to occur in response to anthropogenic disturbance. Text Killer Whale Killer whale University of San Francisco (USF): Scholarship Repository |
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Biology |
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Biology Noren, Dawn P. Holt, Marla M. Dunkin, Robin C. Thometz, Nicole Williams, Terrie M. Comparative and Cumulative Energetic Costs of Odontocete Responses to Anthropogenic Disturbance |
topic_facet |
Biology |
description |
Odontocetes respond to vessels and anthropogenic noise by modifying vocal behavior, surface active behaviors, dive patterns, swim speed, direction of travel, and activity budgets. Exposure scenarios and behavioral responses vary across odontocetes. A literature review was conducted to determine relevant sources of disturbance and associated behavioral responses for several odontocete species (bottlenose dolphin, killer whale, harbor porpoise, and beaked whales). The energetic costs of species-specific responses to anthropogenic disturbance were then estimated. The energetic impact varies across species and scenarios as well as by behavioral responses. Overall, the cumulative energetic cost of ephemeral behavioral responses (e.g., performing surface active behaviors, modifying acoustic signals) and modifying swim speeds and activity budgets likely increases daily energy expenditure by ≤4%. In contrast, the reduction in foraging activity in the presence of vessels and/or exposure to sonar has the potential to significantly reduce individuals’ daily energy acquisition. Indeed, across all odontocete species, decreased energy acquisition as a result of reduced foraging undoubtedly has a larger impact on individuals than the increased energy expenditure associated with behavioral modification. This work provides a powerful tool to investigate the biological significance of multiple behavioral responses that are likely to occur in response to anthropogenic disturbance. |
format |
Text |
author |
Noren, Dawn P. Holt, Marla M. Dunkin, Robin C. Thometz, Nicole Williams, Terrie M. |
author_facet |
Noren, Dawn P. Holt, Marla M. Dunkin, Robin C. Thometz, Nicole Williams, Terrie M. |
author_sort |
Noren, Dawn P. |
title |
Comparative and Cumulative Energetic Costs of Odontocete Responses to Anthropogenic Disturbance |
title_short |
Comparative and Cumulative Energetic Costs of Odontocete Responses to Anthropogenic Disturbance |
title_full |
Comparative and Cumulative Energetic Costs of Odontocete Responses to Anthropogenic Disturbance |
title_fullStr |
Comparative and Cumulative Energetic Costs of Odontocete Responses to Anthropogenic Disturbance |
title_full_unstemmed |
Comparative and Cumulative Energetic Costs of Odontocete Responses to Anthropogenic Disturbance |
title_sort |
comparative and cumulative energetic costs of odontocete responses to anthropogenic disturbance |
publisher |
USF Scholarship: a digital repository @ Gleeson Library | Geschke Center |
publishDate |
2016 |
url |
https://repository.usfca.edu/biol_fac/52 https://repository.usfca.edu/cgi/viewcontent.cgi?article=1053&context=biol_fac |
genre |
Killer Whale Killer whale |
genre_facet |
Killer Whale Killer whale |
op_source |
Biology Faculty Publications |
op_relation |
https://repository.usfca.edu/biol_fac/52 https://repository.usfca.edu/cgi/viewcontent.cgi?article=1053&context=biol_fac |
_version_ |
1766057503461736448 |