Supplementary Materials from Temporal shifts in intraguild predation pressure between beluga whales and Greenland halibut in a changing Arctic.
Asymmetrical intraguild predation (AIGP), which combines both predation and competition between predator species, is pervasive in nature with relative strengths varying by prey availability. But with species redistributions associated with climate change, the response by endemic predators within an...
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ftroysocietyfig:oai:figshare.com:article/5555155 2023-05-15T14:54:11+02:00 Supplementary Materials from Temporal shifts in intraguild predation pressure between beluga whales and Greenland halibut in a changing Arctic. David J. Yurkowskil Nigel E. Hussey Aaron T. Fisk Kendra L. Imrie Ross F. Tallman Steven H. Ferguson 2017-11-03T09:50:57Z https://doi.org/10.6084/m9.figshare.5555155.v2 https://figshare.com/articles/journal_contribution/Supplementary_Materials_from_Temporal_shifts_in_intraguild_predation_pressure_between_beluga_whales_and_Greenland_halibut_in_a_changing_Arctic/5555155 unknown doi:10.6084/m9.figshare.5555155.v2 https://figshare.com/articles/journal_contribution/Supplementary_Materials_from_Temporal_shifts_in_intraguild_predation_pressure_between_beluga_whales_and_Greenland_halibut_in_a_changing_Arctic/5555155 CC BY CC-BY Ecology climate change interspecific interactions predator–prey dynamics stable isotopes Text Journal contribution 2017 ftroysocietyfig https://doi.org/10.6084/m9.figshare.5555155.v2 2022-01-01T19:23:40Z Asymmetrical intraguild predation (AIGP), which combines both predation and competition between predator species, is pervasive in nature with relative strengths varying by prey availability. But with species redistributions associated with climate change, the response by endemic predators within an AIGP context to changing biotic–abiotic conditions over time (i.e. seasonal and decadal) has yet to be quantified. Furthermore, little is known on AIGP dynamics in ecosystems undergoing rapid directional change such as the Arctic. Here, we investigate the flexibility of AIGP among two predators in the same trophic guild: beluga ( Delphinapterus leucas ) and Greenland halibut ( Reinhardtius hippoglossoides ), by season and over 30-years in Cumberland Sound—a system where forage fish capelin ( Mallotus villosus ) have recently become more available. Using stable isotopes, we illustrate different predator responses to temporal shifts in forage fish availability. On a seasonal cycle, beluga consumed less Greenland halibut and increased consumption of forage fish during summer, contrasting a constant consumption rate of forage fish by Greenland halibut year-round leading to decreased AIGP pressure between predators. Over a decadal scale (1982–2012), annual consumption of forage fish by beluga increased with a concomitant decline in the consumption of Greenland halibut, thereby indicating decreased AIGP pressure between predators in concordance with increased forage fish availability. The long-term changes of AIGP pressure between endemic predators illustrated here highlights climate-driven environmental alterations to interspecific intraguild interactions in the Arctic. Other Non-Article Part of Journal/Newspaper Arctic Beluga Beluga* Climate change Cumberland Sound Delphinapterus leucas Greenland The Royal Society: Figshare Arctic Cumberland Sound ENVELOPE(-66.014,-66.014,65.334,65.334) Greenland |
institution |
Open Polar |
collection |
The Royal Society: Figshare |
op_collection_id |
ftroysocietyfig |
language |
unknown |
topic |
Ecology climate change interspecific interactions predator–prey dynamics stable isotopes |
spellingShingle |
Ecology climate change interspecific interactions predator–prey dynamics stable isotopes David J. Yurkowskil Nigel E. Hussey Aaron T. Fisk Kendra L. Imrie Ross F. Tallman Steven H. Ferguson Supplementary Materials from Temporal shifts in intraguild predation pressure between beluga whales and Greenland halibut in a changing Arctic. |
topic_facet |
Ecology climate change interspecific interactions predator–prey dynamics stable isotopes |
description |
Asymmetrical intraguild predation (AIGP), which combines both predation and competition between predator species, is pervasive in nature with relative strengths varying by prey availability. But with species redistributions associated with climate change, the response by endemic predators within an AIGP context to changing biotic–abiotic conditions over time (i.e. seasonal and decadal) has yet to be quantified. Furthermore, little is known on AIGP dynamics in ecosystems undergoing rapid directional change such as the Arctic. Here, we investigate the flexibility of AIGP among two predators in the same trophic guild: beluga ( Delphinapterus leucas ) and Greenland halibut ( Reinhardtius hippoglossoides ), by season and over 30-years in Cumberland Sound—a system where forage fish capelin ( Mallotus villosus ) have recently become more available. Using stable isotopes, we illustrate different predator responses to temporal shifts in forage fish availability. On a seasonal cycle, beluga consumed less Greenland halibut and increased consumption of forage fish during summer, contrasting a constant consumption rate of forage fish by Greenland halibut year-round leading to decreased AIGP pressure between predators. Over a decadal scale (1982–2012), annual consumption of forage fish by beluga increased with a concomitant decline in the consumption of Greenland halibut, thereby indicating decreased AIGP pressure between predators in concordance with increased forage fish availability. The long-term changes of AIGP pressure between endemic predators illustrated here highlights climate-driven environmental alterations to interspecific intraguild interactions in the Arctic. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
David J. Yurkowskil Nigel E. Hussey Aaron T. Fisk Kendra L. Imrie Ross F. Tallman Steven H. Ferguson |
author_facet |
David J. Yurkowskil Nigel E. Hussey Aaron T. Fisk Kendra L. Imrie Ross F. Tallman Steven H. Ferguson |
author_sort |
David J. Yurkowskil |
title |
Supplementary Materials from Temporal shifts in intraguild predation pressure between beluga whales and Greenland halibut in a changing Arctic. |
title_short |
Supplementary Materials from Temporal shifts in intraguild predation pressure between beluga whales and Greenland halibut in a changing Arctic. |
title_full |
Supplementary Materials from Temporal shifts in intraguild predation pressure between beluga whales and Greenland halibut in a changing Arctic. |
title_fullStr |
Supplementary Materials from Temporal shifts in intraguild predation pressure between beluga whales and Greenland halibut in a changing Arctic. |
title_full_unstemmed |
Supplementary Materials from Temporal shifts in intraguild predation pressure between beluga whales and Greenland halibut in a changing Arctic. |
title_sort |
supplementary materials from temporal shifts in intraguild predation pressure between beluga whales and greenland halibut in a changing arctic. |
publishDate |
2017 |
url |
https://doi.org/10.6084/m9.figshare.5555155.v2 https://figshare.com/articles/journal_contribution/Supplementary_Materials_from_Temporal_shifts_in_intraguild_predation_pressure_between_beluga_whales_and_Greenland_halibut_in_a_changing_Arctic/5555155 |
long_lat |
ENVELOPE(-66.014,-66.014,65.334,65.334) |
geographic |
Arctic Cumberland Sound Greenland |
geographic_facet |
Arctic Cumberland Sound Greenland |
genre |
Arctic Beluga Beluga* Climate change Cumberland Sound Delphinapterus leucas Greenland |
genre_facet |
Arctic Beluga Beluga* Climate change Cumberland Sound Delphinapterus leucas Greenland |
op_relation |
doi:10.6084/m9.figshare.5555155.v2 https://figshare.com/articles/journal_contribution/Supplementary_Materials_from_Temporal_shifts_in_intraguild_predation_pressure_between_beluga_whales_and_Greenland_halibut_in_a_changing_Arctic/5555155 |
op_rights |
CC BY |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.5555155.v2 |
_version_ |
1766325920492158976 |