Environmental determinants of fecundity and pup growth in fur seals
This indicator is no longer maintained, and is considered OBSOLETE. INDICATOR DEFINITION The fecundity (pupping rates) of female fur seals and the growth rates of their pups relative to changes in sea surface temperatures (local primary production) in the vicinity of Macquarie Island. TYPE OF INDICA...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.ands.org.au/environmental-determinants-fecundity-fur-seals/701734 https://doi.org/10.26179/5d2e8725bb2d5 https://data.aad.gov.au/metadata/records/SOE_fur_seals http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::701734 2023-05-15T13:46:59+02:00 Environmental determinants of fecundity and pup growth in fur seals GOLDSWORTHY, SIMON (hasPrincipalInvestigator) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-54.47882; southlimit=-54.78327; westlimit=158.76343; eastLimit=158.9653; projection=WGS84 Temporal: From 1990-01-01 to 1999-12-31 https://researchdata.ands.org.au/environmental-determinants-fecundity-fur-seals/701734 https://doi.org/10.26179/5d2e8725bb2d5 https://data.aad.gov.au/metadata/records/SOE_fur_seals http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/environmental-determinants-fecundity-fur-seals/701734 0f45e29c-e531-4e65-9f87-9fb1d24b2bb1 doi:10.26179/5d2e8725bb2d5 SOE_fur_seals https://data.aad.gov.au/metadata/records/SOE_fur_seals http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre biota oceans SEA SURFACE TEMPERATURE EARTH SCIENCE OCEAN TEMPERATURE ANIMALS/VERTEBRATES BIOLOGICAL CLASSIFICATION MAMMALS CHLOROPHYLL OCEAN CHEMISTRY PIGMENTS POPULATION DYNAMICS BIOSPHERE ECOLOGICAL DYNAMICS SPECIES/POPULATION INTERACTIONS PRIMARY PRODUCTION ECOSYSTEM FUNCTIONS CLIMATE CHANGE FECUNDITY FUR SEALS GLOBAL WARMING VISUAL OBSERVATIONS FIELD SURVEYS OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > MACQUARIE ISLAND GEOGRAPHIC REGION > POLAR dataset ftands https://doi.org/10.26179/5d2e8725bb2d5 2020-01-05T21:19:10Z This indicator is no longer maintained, and is considered OBSOLETE. INDICATOR DEFINITION The fecundity (pupping rates) of female fur seals and the growth rates of their pups relative to changes in sea surface temperatures (local primary production) in the vicinity of Macquarie Island. TYPE OF INDICATOR There are three types of indicators used in this report: 1.Describes the CONDITION of important elements of a system; 2.Show the extent of the major PRESSURES exerted on a system; 3.Determine RESPONSES to either condition or changes in the condition of a system. This indicator is one of: CONDITION RATIONALE FOR INDICATOR SELECTION A highly negative correlation has been detected between sea surface temperatures in the vicinity of Macquarie Island and fur seal fecundity and pup growth. A dataset of over ten years has shown that autumn sea-surface temperatures are highly negatively correlated with female fecundity in the following breeding season. Rather than the reproductive success in terms of fecundity and pup growth being seen simply as a correlate of SST and presumably ocean productivity, the measure is much more than this. What the dataset from the Macquarie Island fur seal populations is rather more unique, in that they indicate how environmental variability effects the reproductive success of animals at annual and lifetime scales. This is especially important as we can now show what impacts environmental/climatic phenomena such as the Antarctic Circumpolar Wave, and global warming will have on fur seals, and how changes in the environment may impact on the viability of populations. In this situation, the data clearly suggest that warmer ocean temperatures significantly effect the reproductive success of fur seals. Sustained warmer temperatures would therefore impose demographic constraints on populations. DESIGN AND STRATEGY FOR INDICATOR MONITORING PROGRAM Spatial scale: SST data are obtained from a 1 degree square just north of the island that represents the region in which most females obtain food throughout their lactation period. Frequency: Data on the reproductive success of fur seals is to be collected annually. Measurement technique: Each breeding season (November-January), the reproductive success of tagged females is monitored, including their pupping success, and the growth rates of their pups. RESEARCH ISSUES LINKS TO OTHER INDICATORS Dataset Antarc* Antarctic Macquarie Island Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Southern Ocean The Antarctic ENVELOPE(158.76343,158.9653,-54.47882,-54.78327) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota oceans SEA SURFACE TEMPERATURE EARTH SCIENCE OCEAN TEMPERATURE ANIMALS/VERTEBRATES BIOLOGICAL CLASSIFICATION MAMMALS CHLOROPHYLL OCEAN CHEMISTRY PIGMENTS POPULATION DYNAMICS BIOSPHERE ECOLOGICAL DYNAMICS SPECIES/POPULATION INTERACTIONS PRIMARY PRODUCTION ECOSYSTEM FUNCTIONS CLIMATE CHANGE FECUNDITY FUR SEALS GLOBAL WARMING VISUAL OBSERVATIONS FIELD SURVEYS OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > MACQUARIE ISLAND GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans SEA SURFACE TEMPERATURE EARTH SCIENCE OCEAN TEMPERATURE ANIMALS/VERTEBRATES BIOLOGICAL CLASSIFICATION MAMMALS CHLOROPHYLL OCEAN CHEMISTRY PIGMENTS POPULATION DYNAMICS BIOSPHERE ECOLOGICAL DYNAMICS SPECIES/POPULATION INTERACTIONS PRIMARY PRODUCTION ECOSYSTEM FUNCTIONS CLIMATE CHANGE FECUNDITY FUR SEALS GLOBAL WARMING VISUAL OBSERVATIONS FIELD SURVEYS OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > MACQUARIE ISLAND GEOGRAPHIC REGION > POLAR Environmental determinants of fecundity and pup growth in fur seals |
topic_facet |
biota oceans SEA SURFACE TEMPERATURE EARTH SCIENCE OCEAN TEMPERATURE ANIMALS/VERTEBRATES BIOLOGICAL CLASSIFICATION MAMMALS CHLOROPHYLL OCEAN CHEMISTRY PIGMENTS POPULATION DYNAMICS BIOSPHERE ECOLOGICAL DYNAMICS SPECIES/POPULATION INTERACTIONS PRIMARY PRODUCTION ECOSYSTEM FUNCTIONS CLIMATE CHANGE FECUNDITY FUR SEALS GLOBAL WARMING VISUAL OBSERVATIONS FIELD SURVEYS OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > MACQUARIE ISLAND GEOGRAPHIC REGION > POLAR |
description |
This indicator is no longer maintained, and is considered OBSOLETE. INDICATOR DEFINITION The fecundity (pupping rates) of female fur seals and the growth rates of their pups relative to changes in sea surface temperatures (local primary production) in the vicinity of Macquarie Island. TYPE OF INDICATOR There are three types of indicators used in this report: 1.Describes the CONDITION of important elements of a system; 2.Show the extent of the major PRESSURES exerted on a system; 3.Determine RESPONSES to either condition or changes in the condition of a system. This indicator is one of: CONDITION RATIONALE FOR INDICATOR SELECTION A highly negative correlation has been detected between sea surface temperatures in the vicinity of Macquarie Island and fur seal fecundity and pup growth. A dataset of over ten years has shown that autumn sea-surface temperatures are highly negatively correlated with female fecundity in the following breeding season. Rather than the reproductive success in terms of fecundity and pup growth being seen simply as a correlate of SST and presumably ocean productivity, the measure is much more than this. What the dataset from the Macquarie Island fur seal populations is rather more unique, in that they indicate how environmental variability effects the reproductive success of animals at annual and lifetime scales. This is especially important as we can now show what impacts environmental/climatic phenomena such as the Antarctic Circumpolar Wave, and global warming will have on fur seals, and how changes in the environment may impact on the viability of populations. In this situation, the data clearly suggest that warmer ocean temperatures significantly effect the reproductive success of fur seals. Sustained warmer temperatures would therefore impose demographic constraints on populations. DESIGN AND STRATEGY FOR INDICATOR MONITORING PROGRAM Spatial scale: SST data are obtained from a 1 degree square just north of the island that represents the region in which most females obtain food throughout their lactation period. Frequency: Data on the reproductive success of fur seals is to be collected annually. Measurement technique: Each breeding season (November-January), the reproductive success of tagged females is monitored, including their pupping success, and the growth rates of their pups. RESEARCH ISSUES LINKS TO OTHER INDICATORS |
author2 |
GOLDSWORTHY, SIMON (hasPrincipalInvestigator) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Environmental determinants of fecundity and pup growth in fur seals |
title_short |
Environmental determinants of fecundity and pup growth in fur seals |
title_full |
Environmental determinants of fecundity and pup growth in fur seals |
title_fullStr |
Environmental determinants of fecundity and pup growth in fur seals |
title_full_unstemmed |
Environmental determinants of fecundity and pup growth in fur seals |
title_sort |
environmental determinants of fecundity and pup growth in fur seals |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/environmental-determinants-fecundity-fur-seals/701734 https://doi.org/10.26179/5d2e8725bb2d5 https://data.aad.gov.au/metadata/records/SOE_fur_seals http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-54.47882; southlimit=-54.78327; westlimit=158.76343; eastLimit=158.9653; projection=WGS84 Temporal: From 1990-01-01 to 1999-12-31 |
long_lat |
ENVELOPE(158.76343,158.9653,-54.47882,-54.78327) |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Macquarie Island Southern Ocean |
genre_facet |
Antarc* Antarctic Macquarie Island Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/environmental-determinants-fecundity-fur-seals/701734 0f45e29c-e531-4e65-9f87-9fb1d24b2bb1 doi:10.26179/5d2e8725bb2d5 SOE_fur_seals https://data.aad.gov.au/metadata/records/SOE_fur_seals http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.26179/5d2e8725bb2d5 |
_version_ |
1766246093213925376 |