Arctic and Western North Atlantic shallow marine diversity patterns: A comparison of controlling factors

Session: Global Environmental Change: GC23A Arctic Environmental Change: Local, Regional, Global Drivers and Impacts II Posters - no. GC23A-1227 Shallow marine biodiversity patterns are governed by complicated combinations of environmental factors, and our understanding on the controlling mechanisms...

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Main Authors: Gemery, L, Chiu, RWT, Yasuhara, M, Cronin, TM, Hunt, G, Wei, CL
Format: Conference Object
Language:English
Published: American Geophysical Union. 2016
Subjects:
Online Access:http://hdl.handle.net/10722/241817
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spelling ftunivhongkonghu:oai:hub.hku.hk:10722/241817 2023-05-15T14:34:28+02:00 Arctic and Western North Atlantic shallow marine diversity patterns: A comparison of controlling factors Gemery, L Chiu, RWT Yasuhara, M Cronin, TM Hunt, G Wei, CL 2016 http://hdl.handle.net/10722/241817 eng eng American Geophysical Union. United States American Geophysical Union Fall Meeting American Geophysical Union (AGU) Fall Meeting, San Francisco, USA, 12-16 December 2016 272810 http://hdl.handle.net/10722/241817 American Geophysical Union Fall Meeting. Copyright © American Geophysical Union. Conference_Paper 2016 ftunivhongkonghu 2023-01-14T16:19:53Z Session: Global Environmental Change: GC23A Arctic Environmental Change: Local, Regional, Global Drivers and Impacts II Posters - no. GC23A-1227 Shallow marine biodiversity patterns are governed by complicated combinations of environmental factors, and our understanding on the controlling mechanisms remains limited. Here we used ostracodes as a model system to look for the controlling factors on biodiversity patterns in shallow marine environments in the western North Atlantic Ocean and Arctic Ocean continental shelves. We analyzed ostracode biodiversity from 558 sites in the western Atlantic to the Arctic and revealed a negative diversity gradient from the tropics to the Arctic. Regression models and model-averaging results of the latitudinal diversity patterns showed that bottom water temperature is a significant controlling factor of ostracode diversity, whereas bottom water salinity, bottom water pH, bottom water dissolved oxygen, and surface primary productivity may not be. Using the same modelling approach, we will further analyze the Arctic Ocean-wide diversity pattern, which was believed to be controlled by temperature, surface productivity and salinity in other study. We will compare the various factors, which are believed to influence longitudinal diversity variability in the circum-Arctic Ocean, as well as the those that influence latitudinal diversity patterns in North Atlantic Ocean. Conference Object Arctic Arctic Ocean North Atlantic University of Hong Kong: HKU Scholars Hub Arctic Arctic Ocean
institution Open Polar
collection University of Hong Kong: HKU Scholars Hub
op_collection_id ftunivhongkonghu
language English
description Session: Global Environmental Change: GC23A Arctic Environmental Change: Local, Regional, Global Drivers and Impacts II Posters - no. GC23A-1227 Shallow marine biodiversity patterns are governed by complicated combinations of environmental factors, and our understanding on the controlling mechanisms remains limited. Here we used ostracodes as a model system to look for the controlling factors on biodiversity patterns in shallow marine environments in the western North Atlantic Ocean and Arctic Ocean continental shelves. We analyzed ostracode biodiversity from 558 sites in the western Atlantic to the Arctic and revealed a negative diversity gradient from the tropics to the Arctic. Regression models and model-averaging results of the latitudinal diversity patterns showed that bottom water temperature is a significant controlling factor of ostracode diversity, whereas bottom water salinity, bottom water pH, bottom water dissolved oxygen, and surface primary productivity may not be. Using the same modelling approach, we will further analyze the Arctic Ocean-wide diversity pattern, which was believed to be controlled by temperature, surface productivity and salinity in other study. We will compare the various factors, which are believed to influence longitudinal diversity variability in the circum-Arctic Ocean, as well as the those that influence latitudinal diversity patterns in North Atlantic Ocean.
format Conference Object
author Gemery, L
Chiu, RWT
Yasuhara, M
Cronin, TM
Hunt, G
Wei, CL
spellingShingle Gemery, L
Chiu, RWT
Yasuhara, M
Cronin, TM
Hunt, G
Wei, CL
Arctic and Western North Atlantic shallow marine diversity patterns: A comparison of controlling factors
author_facet Gemery, L
Chiu, RWT
Yasuhara, M
Cronin, TM
Hunt, G
Wei, CL
author_sort Gemery, L
title Arctic and Western North Atlantic shallow marine diversity patterns: A comparison of controlling factors
title_short Arctic and Western North Atlantic shallow marine diversity patterns: A comparison of controlling factors
title_full Arctic and Western North Atlantic shallow marine diversity patterns: A comparison of controlling factors
title_fullStr Arctic and Western North Atlantic shallow marine diversity patterns: A comparison of controlling factors
title_full_unstemmed Arctic and Western North Atlantic shallow marine diversity patterns: A comparison of controlling factors
title_sort arctic and western north atlantic shallow marine diversity patterns: a comparison of controlling factors
publisher American Geophysical Union.
publishDate 2016
url http://hdl.handle.net/10722/241817
geographic Arctic
Arctic Ocean
geographic_facet Arctic
Arctic Ocean
genre Arctic
Arctic Ocean
North Atlantic
genre_facet Arctic
Arctic Ocean
North Atlantic
op_relation American Geophysical Union Fall Meeting
American Geophysical Union (AGU) Fall Meeting, San Francisco, USA, 12-16 December 2016
272810
http://hdl.handle.net/10722/241817
op_rights American Geophysical Union Fall Meeting. Copyright © American Geophysical Union.
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