(Table 2) Planktic foraminifera and their diversity indices of sediment surface samples from the Atlantic Ocean
Species distribution patterns in planktonic foraminiferal assemblages are fundamental to the understanding of the determinants of their ecology. Until now, data used to identify such distribution patterns was mainly acquired using the standard >150 µm sieve size. However, given that assemblage sh...
Main Authors: | , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2007
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.672305 https://doi.org/10.1594/PANGAEA.672305 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.672305 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
06MT41_3 154-926A ANT-XI/2 ARK-III/3 ARK-VII/1 Atlantic Ocean Barcelona Coast BC BCR Beella digitata Box corer Box corer (Reineck) Brazil Basin Candeina nitida Cork Harbour Depth bottom/max sediment/rock top/min DRILL Drilling/drill rig Equitability Event label Fishers alpha index of diversity Foraminifera planktic Fram Strait GeoB1206-1 GeoB1726-1 GeoB3915-1 GeoB5142-1 Giant box corer GIK10737-1 GIK21293-3 PS07/583 GIK21901-1 PS17/076 GKG Globigerina bulloides Globigerina falconensis Globigerinella calida Globigerinella siphonifera Globigerinita glutinata Globigerinita uvula Globigerinoides conglobatus Globigerinoides ruber pink Globigerinoides ruber white Globigerinoides sacculifer Globigerinoides trilobus Globorotalia crassaformis |
spellingShingle |
06MT41_3 154-926A ANT-XI/2 ARK-III/3 ARK-VII/1 Atlantic Ocean Barcelona Coast BC BCR Beella digitata Box corer Box corer (Reineck) Brazil Basin Candeina nitida Cork Harbour Depth bottom/max sediment/rock top/min DRILL Drilling/drill rig Equitability Event label Fishers alpha index of diversity Foraminifera planktic Fram Strait GeoB1206-1 GeoB1726-1 GeoB3915-1 GeoB5142-1 Giant box corer GIK10737-1 GIK21293-3 PS07/583 GIK21901-1 PS17/076 GKG Globigerina bulloides Globigerina falconensis Globigerinella calida Globigerinella siphonifera Globigerinita glutinata Globigerinita uvula Globigerinoides conglobatus Globigerinoides ruber pink Globigerinoides ruber white Globigerinoides sacculifer Globigerinoides trilobus Globorotalia crassaformis Al-Sabouni, Nadia Kucera, Michal Schmidt, Daniela N (Table 2) Planktic foraminifera and their diversity indices of sediment surface samples from the Atlantic Ocean |
topic_facet |
06MT41_3 154-926A ANT-XI/2 ARK-III/3 ARK-VII/1 Atlantic Ocean Barcelona Coast BC BCR Beella digitata Box corer Box corer (Reineck) Brazil Basin Candeina nitida Cork Harbour Depth bottom/max sediment/rock top/min DRILL Drilling/drill rig Equitability Event label Fishers alpha index of diversity Foraminifera planktic Fram Strait GeoB1206-1 GeoB1726-1 GeoB3915-1 GeoB5142-1 Giant box corer GIK10737-1 GIK21293-3 PS07/583 GIK21901-1 PS17/076 GKG Globigerina bulloides Globigerina falconensis Globigerinella calida Globigerinella siphonifera Globigerinita glutinata Globigerinita uvula Globigerinoides conglobatus Globigerinoides ruber pink Globigerinoides ruber white Globigerinoides sacculifer Globigerinoides trilobus Globorotalia crassaformis |
description |
Species distribution patterns in planktonic foraminiferal assemblages are fundamental to the understanding of the determinants of their ecology. Until now, data used to identify such distribution patterns was mainly acquired using the standard >150 µm sieve size. However, given that assemblage shell size-range in planktonic foraminifera is not constant, this data acquisition practice could introduce artefacts in the distributional data. Here, we investigated the link between assemblage shell size-range and diversity in Recent planktonic foraminifera by analysing multiple sieve-size fractions in 12 samples spanning all bioprovinces of the Atlantic Ocean. Using five diversity indices covering various aspects of community structure, we found that counts from the >63 µm fraction in polar oceans and the >125 µm elsewhere sufficiently approximate maximum diversity in all Recent assemblages. Diversity values based on counts from the >150 µm fraction significantly underestimate maximum diversity in the polar and surprisingly also in the tropical provinces. Although the new methodology changes the shape of the diversity/sea-surface temperature (SST) relationship, its strength appears unaffected. Our analysis reveals that increasing diversity in planktonic foraminiferal assemblages is coupled with a progressive addition of larger species that have distinct, offset shell-size distributions. Thus, the previously documented increase in overall assemblage shell size-range towards lower latitudes is linked to an expanding shell-size disparity between species from the same locality. This observation supports the idea that diversity and shell size-range disparity in foraminiferal assemblages are the result of niche separation. Increasing SST leads to enhanced surface water stratification and results in vertical niche separation, which permits ecological specialisation. Specific deviations from the overall diversity and shell-size disparity latitudinal pattern are seen in regions of surface-water instability, ... |
format |
Dataset |
author |
Al-Sabouni, Nadia Kucera, Michal Schmidt, Daniela N |
author_facet |
Al-Sabouni, Nadia Kucera, Michal Schmidt, Daniela N |
author_sort |
Al-Sabouni, Nadia |
title |
(Table 2) Planktic foraminifera and their diversity indices of sediment surface samples from the Atlantic Ocean |
title_short |
(Table 2) Planktic foraminifera and their diversity indices of sediment surface samples from the Atlantic Ocean |
title_full |
(Table 2) Planktic foraminifera and their diversity indices of sediment surface samples from the Atlantic Ocean |
title_fullStr |
(Table 2) Planktic foraminifera and their diversity indices of sediment surface samples from the Atlantic Ocean |
title_full_unstemmed |
(Table 2) Planktic foraminifera and their diversity indices of sediment surface samples from the Atlantic Ocean |
title_sort |
(table 2) planktic foraminifera and their diversity indices of sediment surface samples from the atlantic ocean |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.672305 https://doi.org/10.1594/PANGAEA.672305 |
op_coverage |
MEDIAN LATITUDE: 15.746781 * MEDIAN LONGITUDE: -20.043114 * SOUTH-BOUND LATITUDE: -44.153333 * WEST-BOUND LONGITUDE: -62.231667 * NORTH-BOUND LATITUDE: 77.998300 * EAST-BOUND LONGITUDE: 6.701600 * DATE/TIME START: 1970-01-01T00:00:00 * DATE/TIME END: 1998-05-09T21:05:00 * MINIMUM DEPTH, sediment/rock: 0.0025 m * MAXIMUM DEPTH, sediment/rock: 0.0300 m |
long_lat |
ENVELOPE(-62.231667,6.701600,77.998300,-44.153333) |
genre |
Fram Strait Planktonic foraminifera |
genre_facet |
Fram Strait Planktonic foraminifera |
op_source |
Supplement to: Al-Sabouni, Nadia; Kucera, Michal; Schmidt, Daniela N (2007): Vertical niche separation control of diversity and size disparity in planktonic foraminifera. Marine Micropaleontology, 63(1-2), 75-90, https://doi.org/10.1016/j.marmicro.2006.11.002 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.672305 https://doi.org/10.1594/PANGAEA.672305 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.67230510.1016/j.marmicro.2006.11.002 |
_version_ |
1810444450021769216 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.672305 2024-09-15T18:07:04+00:00 (Table 2) Planktic foraminifera and their diversity indices of sediment surface samples from the Atlantic Ocean Al-Sabouni, Nadia Kucera, Michal Schmidt, Daniela N MEDIAN LATITUDE: 15.746781 * MEDIAN LONGITUDE: -20.043114 * SOUTH-BOUND LATITUDE: -44.153333 * WEST-BOUND LONGITUDE: -62.231667 * NORTH-BOUND LATITUDE: 77.998300 * EAST-BOUND LONGITUDE: 6.701600 * DATE/TIME START: 1970-01-01T00:00:00 * DATE/TIME END: 1998-05-09T21:05:00 * MINIMUM DEPTH, sediment/rock: 0.0025 m * MAXIMUM DEPTH, sediment/rock: 0.0300 m 2007 text/tab-separated-values, 2855 data points https://doi.pangaea.de/10.1594/PANGAEA.672305 https://doi.org/10.1594/PANGAEA.672305 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.672305 https://doi.org/10.1594/PANGAEA.672305 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Al-Sabouni, Nadia; Kucera, Michal; Schmidt, Daniela N (2007): Vertical niche separation control of diversity and size disparity in planktonic foraminifera. Marine Micropaleontology, 63(1-2), 75-90, https://doi.org/10.1016/j.marmicro.2006.11.002 06MT41_3 154-926A ANT-XI/2 ARK-III/3 ARK-VII/1 Atlantic Ocean Barcelona Coast BC BCR Beella digitata Box corer Box corer (Reineck) Brazil Basin Candeina nitida Cork Harbour Depth bottom/max sediment/rock top/min DRILL Drilling/drill rig Equitability Event label Fishers alpha index of diversity Foraminifera planktic Fram Strait GeoB1206-1 GeoB1726-1 GeoB3915-1 GeoB5142-1 Giant box corer GIK10737-1 GIK21293-3 PS07/583 GIK21901-1 PS17/076 GKG Globigerina bulloides Globigerina falconensis Globigerinella calida Globigerinella siphonifera Globigerinita glutinata Globigerinita uvula Globigerinoides conglobatus Globigerinoides ruber pink Globigerinoides ruber white Globigerinoides sacculifer Globigerinoides trilobus Globorotalia crassaformis dataset 2007 ftpangaea https://doi.org/10.1594/PANGAEA.67230510.1016/j.marmicro.2006.11.002 2024-08-21T00:02:26Z Species distribution patterns in planktonic foraminiferal assemblages are fundamental to the understanding of the determinants of their ecology. Until now, data used to identify such distribution patterns was mainly acquired using the standard >150 µm sieve size. However, given that assemblage shell size-range in planktonic foraminifera is not constant, this data acquisition practice could introduce artefacts in the distributional data. Here, we investigated the link between assemblage shell size-range and diversity in Recent planktonic foraminifera by analysing multiple sieve-size fractions in 12 samples spanning all bioprovinces of the Atlantic Ocean. Using five diversity indices covering various aspects of community structure, we found that counts from the >63 µm fraction in polar oceans and the >125 µm elsewhere sufficiently approximate maximum diversity in all Recent assemblages. Diversity values based on counts from the >150 µm fraction significantly underestimate maximum diversity in the polar and surprisingly also in the tropical provinces. Although the new methodology changes the shape of the diversity/sea-surface temperature (SST) relationship, its strength appears unaffected. Our analysis reveals that increasing diversity in planktonic foraminiferal assemblages is coupled with a progressive addition of larger species that have distinct, offset shell-size distributions. Thus, the previously documented increase in overall assemblage shell size-range towards lower latitudes is linked to an expanding shell-size disparity between species from the same locality. This observation supports the idea that diversity and shell size-range disparity in foraminiferal assemblages are the result of niche separation. Increasing SST leads to enhanced surface water stratification and results in vertical niche separation, which permits ecological specialisation. Specific deviations from the overall diversity and shell-size disparity latitudinal pattern are seen in regions of surface-water instability, ... Dataset Fram Strait Planktonic foraminifera PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-62.231667,6.701600,77.998300,-44.153333) |