Data from: The physiological costs of prey switching reinforce foraging specialization
Sympatric speciation is thought to be strongly linked to resource specialization with alternative resource use acting as a fundamental agent driving divergence. However, sympatric speciation through niche expansion is dependent on foraging specialization being consistent over space and time. Standar...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:96511 2023-07-02T03:30:55+02:00 Data from: The physiological costs of prey switching reinforce foraging specialization Hooker, Oliver E. Van Leeuwen, Travis E. Adams, Colin E. 2017-01-17T19:44:48.000+01:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-0f-mjmx https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:96511 unknown doi:10.5061/dryad.v65m0/1 doi:10.1111/1365-2656.12632 http://nbn-resolving.org/urn:nbn:nl:ui:13-0f-mjmx doi:10.5061/dryad.v65m0 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:96511 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2017 ftdans https://doi.org/10.5061/dryad.v65m0/110.1111/1365-2656.1263210.5061/dryad.v65m0 2023-06-13T13:24:06Z Sympatric speciation is thought to be strongly linked to resource specialization with alternative resource use acting as a fundamental agent driving divergence. However, sympatric speciation through niche expansion is dependent on foraging specialization being consistent over space and time. Standard metabolic rate is the minimal maintenance metabolic rate of an ectotherm in a post-absorptive and inactive state and can constitute a significant portion of an animal's energy budget; thus standard metabolic rate and growth rate are two measures frequently used as an indication of the physiological performance of individuals. Physiological adaptations to a specific diet may increase the efficiency with which it is utilized, but may have an increased cost associated with switching diets, which may result in a reduced SMR and growth rate. In this study we use the diet specialization often seen in polymorphic Arctic charr (Salvelinus alpinus) populations to study the effects of different prey on standard metabolic rate and growth rate as well as the effects that early prey specialization may have on the ability to process other prey types efficiently. We found a significant effect of prey type on standard metabolic rate and growth rate. Furthermore, we found evidence of diet specialization with all fish maintaining a standard metabolic rate and growth rate lower than expected when fed on a diet different to which they were raised, possibly due to a maladaptation in digestion of alternative prey items. Our results show that early diet specialization may be reinforced by the elevated costs of prey switching thus promoting the process of resource specialization during the incipient stages of sympatric divergence. Other/Unknown Material Arctic charr Arctic Salvelinus alpinus Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic |
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Open Polar |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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unknown |
topic |
Life sciences medicine and health care |
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Life sciences medicine and health care Hooker, Oliver E. Van Leeuwen, Travis E. Adams, Colin E. Data from: The physiological costs of prey switching reinforce foraging specialization |
topic_facet |
Life sciences medicine and health care |
description |
Sympatric speciation is thought to be strongly linked to resource specialization with alternative resource use acting as a fundamental agent driving divergence. However, sympatric speciation through niche expansion is dependent on foraging specialization being consistent over space and time. Standard metabolic rate is the minimal maintenance metabolic rate of an ectotherm in a post-absorptive and inactive state and can constitute a significant portion of an animal's energy budget; thus standard metabolic rate and growth rate are two measures frequently used as an indication of the physiological performance of individuals. Physiological adaptations to a specific diet may increase the efficiency with which it is utilized, but may have an increased cost associated with switching diets, which may result in a reduced SMR and growth rate. In this study we use the diet specialization often seen in polymorphic Arctic charr (Salvelinus alpinus) populations to study the effects of different prey on standard metabolic rate and growth rate as well as the effects that early prey specialization may have on the ability to process other prey types efficiently. We found a significant effect of prey type on standard metabolic rate and growth rate. Furthermore, we found evidence of diet specialization with all fish maintaining a standard metabolic rate and growth rate lower than expected when fed on a diet different to which they were raised, possibly due to a maladaptation in digestion of alternative prey items. Our results show that early diet specialization may be reinforced by the elevated costs of prey switching thus promoting the process of resource specialization during the incipient stages of sympatric divergence. |
author |
Hooker, Oliver E. Van Leeuwen, Travis E. Adams, Colin E. |
author_facet |
Hooker, Oliver E. Van Leeuwen, Travis E. Adams, Colin E. |
author_sort |
Hooker, Oliver E. |
title |
Data from: The physiological costs of prey switching reinforce foraging specialization |
title_short |
Data from: The physiological costs of prey switching reinforce foraging specialization |
title_full |
Data from: The physiological costs of prey switching reinforce foraging specialization |
title_fullStr |
Data from: The physiological costs of prey switching reinforce foraging specialization |
title_full_unstemmed |
Data from: The physiological costs of prey switching reinforce foraging specialization |
title_sort |
data from: the physiological costs of prey switching reinforce foraging specialization |
publishDate |
2017 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-0f-mjmx https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:96511 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_relation |
doi:10.5061/dryad.v65m0/1 doi:10.1111/1365-2656.12632 http://nbn-resolving.org/urn:nbn:nl:ui:13-0f-mjmx doi:10.5061/dryad.v65m0 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:96511 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.v65m0/110.1111/1365-2656.1263210.5061/dryad.v65m0 |
_version_ |
1770275196728508416 |