Consumption rates of Antarctic scavenging amphipods on different food items measured in ex situ feeding trials (Austral summer 2014/2015 and 2016)
Scavenger guilds are composed of a variety of species, co-existing in the same habitat and sharing the same niche in the food web. Niche partitioning among them can manifest in different feeding strategies, e.g. during carcass feeding. In the bentho-pelagic realm of the Southern Ocean, scavenging am...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.883691 2023-05-15T13:44:47+02:00 Consumption rates of Antarctic scavenging amphipods on different food items measured in ex situ feeding trials (Austral summer 2014/2015 and 2016) Seefeldt, Meike Anna MEDIAN LATITUDE: -62.231524 * MEDIAN LONGITUDE: -58.673641 * SOUTH-BOUND LATITUDE: -62.239830 * WEST-BOUND LONGITUDE: -58.700000 * NORTH-BOUND LATITUDE: -62.216670 * EAST-BOUND LONGITUDE: -58.666660 * DATE/TIME START: 2014-11-01T00:00:00 * DATE/TIME END: 2016-01-01T00:00:00 2017-12-01 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.883691 https://doi.org/10.1594/PANGAEA.883691 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.883691 https://doi.org/10.1594/PANGAEA.883691 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Seefeldt, Meike Anna; Campana, Gabriela L; Deregibus, Dolores; Quartino, Maria Liliana; Abele, Doris; Tollrian, R; Held, Christoph (2017): Different feeding strategies in Antarctic scavenging amphipods and their implications for colonisation success in times of retreating glaciers. Frontiers in Zoology, 14, 59, https://doi.org/10.1186/s12983-017-0248-3 IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.883691 https://doi.org/10.1186/s12983-017-0248-3 2023-01-20T07:34:04Z Scavenger guilds are composed of a variety of species, co-existing in the same habitat and sharing the same niche in the food web. Niche partitioning among them can manifest in different feeding strategies, e.g. during carcass feeding. In the bentho-pelagic realm of the Southern Ocean, scavenging amphipods (Lysianassoidea) are ubiquitous and occupy a central role in decomposition processes. Here we address the question whether scavenging lysianassoid amphipods employ different feeding strategies during carcass feeding, and whether synergistic feeding activities may influence carcass decomposition. To this end, we compared the relatively large species Waldeckia obesa with the small species Cheirimedon femoratus, Hippomedon kergueleni, and Orchomenella rotundifrons during fish carcass feeding (Notothenia spp.). The experimental approach combined ex situ feeding experiments, behavioural observations, and scanning electron microscopic analyses of mandibles. Furthermore, we aimed to detect ecological drivers for distribution patterns of scavenging amphipods in the Antarctic coastal ecosystems of Potter Cove. In Potter Cove, the climate-driven rapid retreat of the Fourcade Glacier is causing various environmental changes including the provision of new marine habitats to colonise. While in the newly ice-free areas fish are rare, macroalgae have already colonised hard substrates. Assuming that a temporal dietary switch may increase the colonisation success of the most abundant lysianassoids C. femoratus and H. kergueleni, we aimed to determine their consumption rates (g food x g amphipods -1 x day -1) and preferences of macroalgae and fish. Dataset Antarc* Antarctic Antarctica Arctic Sea ice Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Arctic Antarctic Southern Ocean The Antarctic Austral Potter Cove Fourcade ENVELOPE(-62.490,-62.490,-64.612,-64.612) Fourcade Glacier ENVELOPE(-58.666,-58.666,-62.216,-62.216) ENVELOPE(-58.700000,-58.666660,-62.216670,-62.239830) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Seefeldt, Meike Anna Consumption rates of Antarctic scavenging amphipods on different food items measured in ex situ feeding trials (Austral summer 2014/2015 and 2016) |
topic_facet |
IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
Scavenger guilds are composed of a variety of species, co-existing in the same habitat and sharing the same niche in the food web. Niche partitioning among them can manifest in different feeding strategies, e.g. during carcass feeding. In the bentho-pelagic realm of the Southern Ocean, scavenging amphipods (Lysianassoidea) are ubiquitous and occupy a central role in decomposition processes. Here we address the question whether scavenging lysianassoid amphipods employ different feeding strategies during carcass feeding, and whether synergistic feeding activities may influence carcass decomposition. To this end, we compared the relatively large species Waldeckia obesa with the small species Cheirimedon femoratus, Hippomedon kergueleni, and Orchomenella rotundifrons during fish carcass feeding (Notothenia spp.). The experimental approach combined ex situ feeding experiments, behavioural observations, and scanning electron microscopic analyses of mandibles. Furthermore, we aimed to detect ecological drivers for distribution patterns of scavenging amphipods in the Antarctic coastal ecosystems of Potter Cove. In Potter Cove, the climate-driven rapid retreat of the Fourcade Glacier is causing various environmental changes including the provision of new marine habitats to colonise. While in the newly ice-free areas fish are rare, macroalgae have already colonised hard substrates. Assuming that a temporal dietary switch may increase the colonisation success of the most abundant lysianassoids C. femoratus and H. kergueleni, we aimed to determine their consumption rates (g food x g amphipods -1 x day -1) and preferences of macroalgae and fish. |
format |
Dataset |
author |
Seefeldt, Meike Anna |
author_facet |
Seefeldt, Meike Anna |
author_sort |
Seefeldt, Meike Anna |
title |
Consumption rates of Antarctic scavenging amphipods on different food items measured in ex situ feeding trials (Austral summer 2014/2015 and 2016) |
title_short |
Consumption rates of Antarctic scavenging amphipods on different food items measured in ex situ feeding trials (Austral summer 2014/2015 and 2016) |
title_full |
Consumption rates of Antarctic scavenging amphipods on different food items measured in ex situ feeding trials (Austral summer 2014/2015 and 2016) |
title_fullStr |
Consumption rates of Antarctic scavenging amphipods on different food items measured in ex situ feeding trials (Austral summer 2014/2015 and 2016) |
title_full_unstemmed |
Consumption rates of Antarctic scavenging amphipods on different food items measured in ex situ feeding trials (Austral summer 2014/2015 and 2016) |
title_sort |
consumption rates of antarctic scavenging amphipods on different food items measured in ex situ feeding trials (austral summer 2014/2015 and 2016) |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.883691 https://doi.org/10.1594/PANGAEA.883691 |
op_coverage |
MEDIAN LATITUDE: -62.231524 * MEDIAN LONGITUDE: -58.673641 * SOUTH-BOUND LATITUDE: -62.239830 * WEST-BOUND LONGITUDE: -58.700000 * NORTH-BOUND LATITUDE: -62.216670 * EAST-BOUND LONGITUDE: -58.666660 * DATE/TIME START: 2014-11-01T00:00:00 * DATE/TIME END: 2016-01-01T00:00:00 |
long_lat |
ENVELOPE(-62.490,-62.490,-64.612,-64.612) ENVELOPE(-58.666,-58.666,-62.216,-62.216) ENVELOPE(-58.700000,-58.666660,-62.216670,-62.239830) |
geographic |
Arctic Antarctic Southern Ocean The Antarctic Austral Potter Cove Fourcade Fourcade Glacier |
geographic_facet |
Arctic Antarctic Southern Ocean The Antarctic Austral Potter Cove Fourcade Fourcade Glacier |
genre |
Antarc* Antarctic Antarctica Arctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Arctic Sea ice Southern Ocean |
op_source |
Supplement to: Seefeldt, Meike Anna; Campana, Gabriela L; Deregibus, Dolores; Quartino, Maria Liliana; Abele, Doris; Tollrian, R; Held, Christoph (2017): Different feeding strategies in Antarctic scavenging amphipods and their implications for colonisation success in times of retreating glaciers. Frontiers in Zoology, 14, 59, https://doi.org/10.1186/s12983-017-0248-3 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.883691 https://doi.org/10.1594/PANGAEA.883691 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.883691 https://doi.org/10.1186/s12983-017-0248-3 |
_version_ |
1766206608195452928 |