Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate
During periods of high energy demand an animal may be constrained by a physiological maximum to its energy intake rate. Predictions by allometric equations describing this maximum for endotherms were significantly surpassed during a few recent laboratory experiments on birds and mammals, being given...
Main Authors: | , , , |
---|---|
Format: | Other Non-Article Part of Journal/Newspaper |
Language: | unknown |
Published: |
2010
|
Subjects: | |
Online Access: | http://hdl.handle.net/10536/DRO/DU:30034450 https://figshare.com/articles/journal_contribution/Insights_from_the_eco-physiological_book_of_records_Bewick_s_swans_outperform_the_canonical_intake-maximizing_vertebrate/21011335 |
id |
ftdeakinunifig:oai:figshare.com:article/21011335 |
---|---|
record_format |
openpolar |
spelling |
ftdeakinunifig:oai:figshare.com:article/21011335 2023-05-15T15:59:44+02:00 Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate Marcel Klaassen H Hangelbroek T de Boer B Nolet 2010-07-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30034450 https://figshare.com/articles/journal_contribution/Insights_from_the_eco-physiological_book_of_records_Bewick_s_swans_outperform_the_canonical_intake-maximizing_vertebrate/21011335 unknown http://hdl.handle.net/10536/DRO/DU:30034450 https://figshare.com/articles/journal_contribution/Insights_from_the_eco-physiological_book_of_records_Bewick_s_swans_outperform_the_canonical_intake-maximizing_vertebrate/21011335 All Rights Reserved Ecology Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology ENERGY-INTAKE MIGRATING BIRDS PONDWEED TUBERS FUELING RATES WHITE SEA TIME CONSTRAINTS COMPETITION STOPOVER BUDGETS Text Journal contribution 2010 ftdeakinunifig 2022-11-17T22:25:54Z During periods of high energy demand an animal may be constrained by a physiological maximum to its energy intake rate. Predictions by allometric equations describing this maximum for endotherms were significantly surpassed during a few recent laboratory experiments on birds and mammals, being given access to food 24 h day -1 . How relevant this is in the field remains to be assessed. We predicted that Bewick’s swans Cygnus columbianus bewickii might surpass this maximum during stopover on their migration. We determined intake rate by measuring initial and final biomass density, and dividing the biomass difference by the feeding time required to reach this difference. This feeding time was given by the functional response. After conversion to daily energy intake rates, these exceeded the previously assumed maximum on two of the three stopover sites studied. The exception was a stopover site where daily foraging time was limited by the tidal cycle. Our study confirms that intake rates may exceed the formerly generally supposed maximum under natural conditions when foraging is possible day and night. Other Non-Article Part of Journal/Newspaper Cygnus columbianus White Sea DRO - Deakin Research Online White Sea |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Ecology Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology ENERGY-INTAKE MIGRATING BIRDS PONDWEED TUBERS FUELING RATES WHITE SEA TIME CONSTRAINTS COMPETITION STOPOVER BUDGETS |
spellingShingle |
Ecology Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology ENERGY-INTAKE MIGRATING BIRDS PONDWEED TUBERS FUELING RATES WHITE SEA TIME CONSTRAINTS COMPETITION STOPOVER BUDGETS Marcel Klaassen H Hangelbroek T de Boer B Nolet Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate |
topic_facet |
Ecology Science & Technology Life Sciences & Biomedicine Environmental Sciences & Ecology ENERGY-INTAKE MIGRATING BIRDS PONDWEED TUBERS FUELING RATES WHITE SEA TIME CONSTRAINTS COMPETITION STOPOVER BUDGETS |
description |
During periods of high energy demand an animal may be constrained by a physiological maximum to its energy intake rate. Predictions by allometric equations describing this maximum for endotherms were significantly surpassed during a few recent laboratory experiments on birds and mammals, being given access to food 24 h day -1 . How relevant this is in the field remains to be assessed. We predicted that Bewick’s swans Cygnus columbianus bewickii might surpass this maximum during stopover on their migration. We determined intake rate by measuring initial and final biomass density, and dividing the biomass difference by the feeding time required to reach this difference. This feeding time was given by the functional response. After conversion to daily energy intake rates, these exceeded the previously assumed maximum on two of the three stopover sites studied. The exception was a stopover site where daily foraging time was limited by the tidal cycle. Our study confirms that intake rates may exceed the formerly generally supposed maximum under natural conditions when foraging is possible day and night. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Marcel Klaassen H Hangelbroek T de Boer B Nolet |
author_facet |
Marcel Klaassen H Hangelbroek T de Boer B Nolet |
author_sort |
Marcel Klaassen |
title |
Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate |
title_short |
Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate |
title_full |
Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate |
title_fullStr |
Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate |
title_full_unstemmed |
Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate |
title_sort |
insights from the eco-physiological book of records : bewick's swans outperform the canonical intake-maximizing vertebrate |
publishDate |
2010 |
url |
http://hdl.handle.net/10536/DRO/DU:30034450 https://figshare.com/articles/journal_contribution/Insights_from_the_eco-physiological_book_of_records_Bewick_s_swans_outperform_the_canonical_intake-maximizing_vertebrate/21011335 |
geographic |
White Sea |
geographic_facet |
White Sea |
genre |
Cygnus columbianus White Sea |
genre_facet |
Cygnus columbianus White Sea |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30034450 https://figshare.com/articles/journal_contribution/Insights_from_the_eco-physiological_book_of_records_Bewick_s_swans_outperform_the_canonical_intake-maximizing_vertebrate/21011335 |
op_rights |
All Rights Reserved |
_version_ |
1766395658894311424 |