The Annual Cycle of Reproductive and Stress Hormones in the Gentoo Penguins - Penguins Restraint and Stress Level
The only work that went ahead as part of this ASAC project was to look at Penguins restraint and stress level (see the referenced paper below). From the paper: During most research on penguins it is necessary to temporarily immobilise the birds at some time (to weigh, mark, or attach instruments). A...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.ands.org.au/annual-cycle-reproductive-stress-level/700245 https://data.aad.gov.au/metadata/records/ASAC_558 http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::700245 2023-05-15T17:09:58+02:00 The Annual Cycle of Reproductive and Stress Hormones in the Gentoo Penguins - Penguins Restraint and Stress Level BURTON, HARRY (hasPrincipalInvestigator) BURTON, HARRY (processor) VAN DEN HOFF, JOHN (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-54.0; southlimit=-54.0; westlimit=158.0; eastLimit=159.0; projection=WGS84 Temporal: From 1992-05-01 to 1992-05-31 https://researchdata.ands.org.au/annual-cycle-reproductive-stress-level/700245 https://data.aad.gov.au/metadata/records/ASAC_558 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/annual-cycle-reproductive-stress-level/700245 5cd2b9eb-98ab-476c-9f71-46ddfc525d46 ASAC_558 https://data.aad.gov.au/metadata/records/ASAC_558 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION BIRDS PENGUINS GENTOO PENGUINS MACQUARIE ISLAND RESTRAINT STRESS FIELD SURVEYS OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:17:19Z The only work that went ahead as part of this ASAC project was to look at Penguins restraint and stress level (see the referenced paper below). From the paper: During most research on penguins it is necessary to temporarily immobilise the birds at some time (to weigh, mark, or attach instruments). Although many penguin species seem unconcerned about a human's presence, a single approaching person has been shown to increase the birds heart rate, suggesting that the animal is aware and may be stressed. Corticosterone is one of the hormones regulating the stress reaction in birds, and in turn regulates that stress caused by immobilisation. As captured and bag restrained Adelie penguins show a three fold increase in heart rate, we can presume that this is a very stressful immobilisation technique. Restricting the stress reaction is particularly important during the breeding season to avoid nest desertion, or loss of eggs and chicks. The subject of this paper is to present a less stressful method for restraining penguins. 38 mature, male Gentoo penguins in good physical condition were used to test bag restraint methods. Resting animals were caught on the Macquarie Island Isthmus. 59 animals were used to test the effect of hood restraint methods. There was a significant increase in corticosterone concentrations in the blood of bag restrained penguins within 10 minutes of restraint. Between 10 and 15 minutes, further changes were not significant. After 20 minutes, however, there was a second significant increase, when compared to the levels at 15 minutes. Upon release all birds were unconscious; they then showed symptoms of hysteria, such as disorientation and shaking of the head. Corticosterone levels in the blood of hooded penguins rose significantly after 5 minutes. After 10 minutes, the mean concentration showed a tendency to decrease, when compared to the 5 minute levels. This, however, did not differ significantly to concentrations immediately after restraint. After 20 minutes concentrations rose again, and were again significantly higher than at the same time of restraint and after 15 minutes. Both groups showed the same levels of corticosterone upon restraint. Hood restraint led overall to a lower increase in corticosterone levels than restraint with a bag. After 5, 10, 15 and 20 minutes, statistically significant lower levels in the blood were detected in hood restrained birds. The penguin's reaction to both restraint methods was identical in two respects: There was no significant increase in corticsterone concentration between 10 and 15 minutes. Secondly, concentrations were significantly higher after 20 minutes than at 15 minutes. Dataset Macquarie Island Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Southern Ocean ENVELOPE(158.0,159.0,-54.0,-54.0) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION BIRDS PENGUINS GENTOO PENGUINS MACQUARIE ISLAND RESTRAINT STRESS FIELD SURVEYS OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION BIRDS PENGUINS GENTOO PENGUINS MACQUARIE ISLAND RESTRAINT STRESS FIELD SURVEYS OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR The Annual Cycle of Reproductive and Stress Hormones in the Gentoo Penguins - Penguins Restraint and Stress Level |
topic_facet |
biota oceans ANIMALS/VERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION BIRDS PENGUINS GENTOO PENGUINS MACQUARIE ISLAND RESTRAINT STRESS FIELD SURVEYS OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR |
description |
The only work that went ahead as part of this ASAC project was to look at Penguins restraint and stress level (see the referenced paper below). From the paper: During most research on penguins it is necessary to temporarily immobilise the birds at some time (to weigh, mark, or attach instruments). Although many penguin species seem unconcerned about a human's presence, a single approaching person has been shown to increase the birds heart rate, suggesting that the animal is aware and may be stressed. Corticosterone is one of the hormones regulating the stress reaction in birds, and in turn regulates that stress caused by immobilisation. As captured and bag restrained Adelie penguins show a three fold increase in heart rate, we can presume that this is a very stressful immobilisation technique. Restricting the stress reaction is particularly important during the breeding season to avoid nest desertion, or loss of eggs and chicks. The subject of this paper is to present a less stressful method for restraining penguins. 38 mature, male Gentoo penguins in good physical condition were used to test bag restraint methods. Resting animals were caught on the Macquarie Island Isthmus. 59 animals were used to test the effect of hood restraint methods. There was a significant increase in corticosterone concentrations in the blood of bag restrained penguins within 10 minutes of restraint. Between 10 and 15 minutes, further changes were not significant. After 20 minutes, however, there was a second significant increase, when compared to the levels at 15 minutes. Upon release all birds were unconscious; they then showed symptoms of hysteria, such as disorientation and shaking of the head. Corticosterone levels in the blood of hooded penguins rose significantly after 5 minutes. After 10 minutes, the mean concentration showed a tendency to decrease, when compared to the 5 minute levels. This, however, did not differ significantly to concentrations immediately after restraint. After 20 minutes concentrations rose again, and were again significantly higher than at the same time of restraint and after 15 minutes. Both groups showed the same levels of corticosterone upon restraint. Hood restraint led overall to a lower increase in corticosterone levels than restraint with a bag. After 5, 10, 15 and 20 minutes, statistically significant lower levels in the blood were detected in hood restrained birds. The penguin's reaction to both restraint methods was identical in two respects: There was no significant increase in corticsterone concentration between 10 and 15 minutes. Secondly, concentrations were significantly higher after 20 minutes than at 15 minutes. |
author2 |
BURTON, HARRY (hasPrincipalInvestigator) BURTON, HARRY (processor) VAN DEN HOFF, JOHN (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
The Annual Cycle of Reproductive and Stress Hormones in the Gentoo Penguins - Penguins Restraint and Stress Level |
title_short |
The Annual Cycle of Reproductive and Stress Hormones in the Gentoo Penguins - Penguins Restraint and Stress Level |
title_full |
The Annual Cycle of Reproductive and Stress Hormones in the Gentoo Penguins - Penguins Restraint and Stress Level |
title_fullStr |
The Annual Cycle of Reproductive and Stress Hormones in the Gentoo Penguins - Penguins Restraint and Stress Level |
title_full_unstemmed |
The Annual Cycle of Reproductive and Stress Hormones in the Gentoo Penguins - Penguins Restraint and Stress Level |
title_sort |
annual cycle of reproductive and stress hormones in the gentoo penguins - penguins restraint and stress level |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/annual-cycle-reproductive-stress-level/700245 https://data.aad.gov.au/metadata/records/ASAC_558 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-54.0; southlimit=-54.0; westlimit=158.0; eastLimit=159.0; projection=WGS84 Temporal: From 1992-05-01 to 1992-05-31 |
long_lat |
ENVELOPE(158.0,159.0,-54.0,-54.0) |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Macquarie Island Southern Ocean |
genre_facet |
Macquarie Island Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/annual-cycle-reproductive-stress-level/700245 5cd2b9eb-98ab-476c-9f71-46ddfc525d46 ASAC_558 https://data.aad.gov.au/metadata/records/ASAC_558 http://nla.gov.au/nla.party-617536 |
_version_ |
1766066347717951488 |