The influence of prey distribution on marine top predator movements
Predation is an ecological process that relies on spatial and temporal co-occurrence of predators and their prey. In marine ecosystems, killer and humpback whales are considered sentinels of ecosystem health, given their critical roles as top predators in shaping marine food webs and their responsiv...
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UiT The Arctic University of Norway
2023
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ftunivtroemsoe:oai:munin.uit.no:10037/31867 2023-12-24T10:14:45+01:00 The influence of prey distribution on marine top predator movements Vogel, Emma 2023-12-08 https://hdl.handle.net/10037/31867 eng eng UiT The Arctic University of Norway UiT Norges arktiske universitet Paper I: Vogel, E.F., Biuw, M., Blanchet, M.A., Jonsen, I.D., Mul, E., Johnsen, E., Hjøllo, S.S., Olsen, M.T., Dietz, R. & Rikardsen, A. (2021). Killer whale movements on the Norwegian shelf are associated with herring density. Marine Ecology Progress Series, 665, 217-231. Published version not available in Munin due to publisher’s restrictions. Published version available at https://doi.org/10.3354/meps13685 . Paper II: Vogel, E.F., Rikardsen, A., Blanchet, M.A., Blevin, P. & Biuw, M. Norwegian killer whale movements reflect their different prey types. (Submitted manuscript). Paper III: Vogel, E.F., Skalmerud, S., Biuw, M., Blanchet, M.A., Kleivane, L., Skaret, G., Øien, N. & Rikardsen, A.H. (2023). Foraging movements of humpback whales relate to the lateral and vertical distribution of capelin in the Barents Sea. Frontiers in Marine Science, 10 , 1254761. Also available in Munin at https://hdl.handle.net/10037/30897 . 978-82-8266-253-6 https://hdl.handle.net/10037/31867 embargoedAccess Copyright 2023 The Author(s) VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 DOKTOR-002 Doctoral thesis Doktorgradsavhandling 2023 ftunivtroemsoe 2023-11-30T00:08:24Z Predation is an ecological process that relies on spatial and temporal co-occurrence of predators and their prey. In marine ecosystems, killer and humpback whales are considered sentinels of ecosystem health, given their critical roles as top predators in shaping marine food webs and their responsiveness to ecosystem changes. As they are seldom influenced by natural threats, they are model species for the study of predator-prey dynamics since their movements, as observed by multidimensional biotelemetry, can reveal interactions occurring underwater and out of sight. This thesis is comprised of three papers that investigate how various prey influences the movements of killer and humpback whales within the Norwegian and Barents Seas. Paper I combined herring density data with whale satellite telemetry to explore how killer whale movements respond to patchy distributions of Norwegian spring spawning herring. This revealed that killer whales follow herring along the Norwegian coast, adjusting their movements in response to herring density. Paper II examined movement differences associated with Norwegian killer whale seal predation as compared to fish predation. Differences in travel routes, shore proximity, and directionality towards seal haul-out areas were observed, emphasizing how these predators optimize their foraging strategies for their prey. Paper III investigated how humpback whale horizontal and vertical movements were influenced by capelin density in the Barents Sea. Both lateral and vertical whale movements responded to capelin density variations, highlighting their tendency to target the densest prey aggregations on both horizontal and vertical scales. Collectively, this thesis revealed nuanced foraging movements in response to varying prey distributions, underscoring the need for more comprehensive models to account for the complexities of predator-prey dynamics, particularly in the face of the rapidly changing Arctic marine ecosystems. It also serves as a foundation for future research incorporating ... Doctoral or Postdoctoral Thesis Arctic Barents Sea Humpback Whale Killer Whale Killer whale University of Tromsø: Munin Open Research Archive Arctic Barents Sea |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 DOKTOR-002 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 DOKTOR-002 Vogel, Emma The influence of prey distribution on marine top predator movements |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 DOKTOR-002 |
description |
Predation is an ecological process that relies on spatial and temporal co-occurrence of predators and their prey. In marine ecosystems, killer and humpback whales are considered sentinels of ecosystem health, given their critical roles as top predators in shaping marine food webs and their responsiveness to ecosystem changes. As they are seldom influenced by natural threats, they are model species for the study of predator-prey dynamics since their movements, as observed by multidimensional biotelemetry, can reveal interactions occurring underwater and out of sight. This thesis is comprised of three papers that investigate how various prey influences the movements of killer and humpback whales within the Norwegian and Barents Seas. Paper I combined herring density data with whale satellite telemetry to explore how killer whale movements respond to patchy distributions of Norwegian spring spawning herring. This revealed that killer whales follow herring along the Norwegian coast, adjusting their movements in response to herring density. Paper II examined movement differences associated with Norwegian killer whale seal predation as compared to fish predation. Differences in travel routes, shore proximity, and directionality towards seal haul-out areas were observed, emphasizing how these predators optimize their foraging strategies for their prey. Paper III investigated how humpback whale horizontal and vertical movements were influenced by capelin density in the Barents Sea. Both lateral and vertical whale movements responded to capelin density variations, highlighting their tendency to target the densest prey aggregations on both horizontal and vertical scales. Collectively, this thesis revealed nuanced foraging movements in response to varying prey distributions, underscoring the need for more comprehensive models to account for the complexities of predator-prey dynamics, particularly in the face of the rapidly changing Arctic marine ecosystems. It also serves as a foundation for future research incorporating ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Vogel, Emma |
author_facet |
Vogel, Emma |
author_sort |
Vogel, Emma |
title |
The influence of prey distribution on marine top predator movements |
title_short |
The influence of prey distribution on marine top predator movements |
title_full |
The influence of prey distribution on marine top predator movements |
title_fullStr |
The influence of prey distribution on marine top predator movements |
title_full_unstemmed |
The influence of prey distribution on marine top predator movements |
title_sort |
influence of prey distribution on marine top predator movements |
publisher |
UiT The Arctic University of Norway |
publishDate |
2023 |
url |
https://hdl.handle.net/10037/31867 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Humpback Whale Killer Whale Killer whale |
genre_facet |
Arctic Barents Sea Humpback Whale Killer Whale Killer whale |
op_relation |
Paper I: Vogel, E.F., Biuw, M., Blanchet, M.A., Jonsen, I.D., Mul, E., Johnsen, E., Hjøllo, S.S., Olsen, M.T., Dietz, R. & Rikardsen, A. (2021). Killer whale movements on the Norwegian shelf are associated with herring density. Marine Ecology Progress Series, 665, 217-231. Published version not available in Munin due to publisher’s restrictions. Published version available at https://doi.org/10.3354/meps13685 . Paper II: Vogel, E.F., Rikardsen, A., Blanchet, M.A., Blevin, P. & Biuw, M. Norwegian killer whale movements reflect their different prey types. (Submitted manuscript). Paper III: Vogel, E.F., Skalmerud, S., Biuw, M., Blanchet, M.A., Kleivane, L., Skaret, G., Øien, N. & Rikardsen, A.H. (2023). Foraging movements of humpback whales relate to the lateral and vertical distribution of capelin in the Barents Sea. Frontiers in Marine Science, 10 , 1254761. Also available in Munin at https://hdl.handle.net/10037/30897 . 978-82-8266-253-6 https://hdl.handle.net/10037/31867 |
op_rights |
embargoedAccess Copyright 2023 The Author(s) |
_version_ |
1786197396784414720 |