Functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the North Pacific Ocean
The northern Pacific Ocean is one of the most sensitive areas globally to climate change. Copepods typically account for between 60% and 90% of mesozooplankton in the open ocean. Because copepods are a key link in marine food webs, their response to environmental changes is an important topic in mar...
Published in: | Ecological Indicators |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2022
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.ecolind.2022.109112 https://doaj.org/article/25bf6c8da8334398a0c5f176cbd8c6bc |
id |
ftdoajarticles:oai:doaj.org/article:25bf6c8da8334398a0c5f176cbd8c6bc |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:25bf6c8da8334398a0c5f176cbd8c6bc 2023-05-15T18:28:37+02:00 Functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the North Pacific Ocean Qinqin Tang Juan Yang Dong Sun 2022-08-01T00:00:00Z https://doi.org/10.1016/j.ecolind.2022.109112 https://doaj.org/article/25bf6c8da8334398a0c5f176cbd8c6bc EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S1470160X22005842 https://doaj.org/toc/1470-160X 1470-160X doi:10.1016/j.ecolind.2022.109112 https://doaj.org/article/25bf6c8da8334398a0c5f176cbd8c6bc Ecological Indicators, Vol 141, Iss , Pp 109112- (2022) Zooplankton Copepods Functional ecology Latitude gradients Traits-based approach Ecology QH540-549.5 article 2022 ftdoajarticles https://doi.org/10.1016/j.ecolind.2022.109112 2022-12-30T22:26:49Z The northern Pacific Ocean is one of the most sensitive areas globally to climate change. Copepods typically account for between 60% and 90% of mesozooplankton in the open ocean. Because copepods are a key link in marine food webs, their response to environmental changes is an important topic in marine biodiversity and ecosystem functioning relationships. The relationship between copepod assemblages and the marine environment in the northern Pacific Ocean from a traits-based perspective has been largely unknown until now. In this study, we used the functional traits and geographic distribution of 177 copepod species along a latitudinal gradient, ranging from 4°S to 46°N in the northern Pacific Ocean, to evaluate the latitudinal variation of functional diversity and assembly rules of copepod assemblages. Based on a cluster analysis of four key functional traits, seven functional groups were identified. Redundancy analysis revealed environmental preferences for different functional groups. Large carnivores showed a stronger preference for higher temperatures than small carnivores, Omnivores and herbivores showed a stronger preference for higher chlorophyll a concentrations. The distribution of detritivores was nearly independent of temperature and chlorophyll a concentration. Most functional diversity indices showed non-linear decreasing trends along the latitudinal gradient. These trends remained stable in the tropic and subtropic regions (WARM and NPSG), but decreased sharply in the Kuroshio extension and Pacific subarctic gyres regions (KURO and PSAG). A null model revealed the assembly rules of copepod assemblage significantly varied with latitude: environmental filtering was dominant in the KURO and PSAG, whereas both environmental filtering and limited similarity played important roles in the WARM and NPSG, in addition to the neutral process. Our results suggested that with ocean warming, a northward shift in the distribution range of specific functional groups (such as large carnivores) might significantly ... Article in Journal/Newspaper Subarctic Copepods Directory of Open Access Journals: DOAJ Articles Pacific Ecological Indicators 141 109112 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Zooplankton Copepods Functional ecology Latitude gradients Traits-based approach Ecology QH540-549.5 |
spellingShingle |
Zooplankton Copepods Functional ecology Latitude gradients Traits-based approach Ecology QH540-549.5 Qinqin Tang Juan Yang Dong Sun Functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the North Pacific Ocean |
topic_facet |
Zooplankton Copepods Functional ecology Latitude gradients Traits-based approach Ecology QH540-549.5 |
description |
The northern Pacific Ocean is one of the most sensitive areas globally to climate change. Copepods typically account for between 60% and 90% of mesozooplankton in the open ocean. Because copepods are a key link in marine food webs, their response to environmental changes is an important topic in marine biodiversity and ecosystem functioning relationships. The relationship between copepod assemblages and the marine environment in the northern Pacific Ocean from a traits-based perspective has been largely unknown until now. In this study, we used the functional traits and geographic distribution of 177 copepod species along a latitudinal gradient, ranging from 4°S to 46°N in the northern Pacific Ocean, to evaluate the latitudinal variation of functional diversity and assembly rules of copepod assemblages. Based on a cluster analysis of four key functional traits, seven functional groups were identified. Redundancy analysis revealed environmental preferences for different functional groups. Large carnivores showed a stronger preference for higher temperatures than small carnivores, Omnivores and herbivores showed a stronger preference for higher chlorophyll a concentrations. The distribution of detritivores was nearly independent of temperature and chlorophyll a concentration. Most functional diversity indices showed non-linear decreasing trends along the latitudinal gradient. These trends remained stable in the tropic and subtropic regions (WARM and NPSG), but decreased sharply in the Kuroshio extension and Pacific subarctic gyres regions (KURO and PSAG). A null model revealed the assembly rules of copepod assemblage significantly varied with latitude: environmental filtering was dominant in the KURO and PSAG, whereas both environmental filtering and limited similarity played important roles in the WARM and NPSG, in addition to the neutral process. Our results suggested that with ocean warming, a northward shift in the distribution range of specific functional groups (such as large carnivores) might significantly ... |
format |
Article in Journal/Newspaper |
author |
Qinqin Tang Juan Yang Dong Sun |
author_facet |
Qinqin Tang Juan Yang Dong Sun |
author_sort |
Qinqin Tang |
title |
Functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the North Pacific Ocean |
title_short |
Functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the North Pacific Ocean |
title_full |
Functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the North Pacific Ocean |
title_fullStr |
Functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the North Pacific Ocean |
title_full_unstemmed |
Functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the North Pacific Ocean |
title_sort |
functional diversity of copepod assemblages along a basin-scale latitudinal gradient in the north pacific ocean |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://doi.org/10.1016/j.ecolind.2022.109112 https://doaj.org/article/25bf6c8da8334398a0c5f176cbd8c6bc |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic Copepods |
genre_facet |
Subarctic Copepods |
op_source |
Ecological Indicators, Vol 141, Iss , Pp 109112- (2022) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1470160X22005842 https://doaj.org/toc/1470-160X 1470-160X doi:10.1016/j.ecolind.2022.109112 https://doaj.org/article/25bf6c8da8334398a0c5f176cbd8c6bc |
op_doi |
https://doi.org/10.1016/j.ecolind.2022.109112 |
container_title |
Ecological Indicators |
container_volume |
141 |
container_start_page |
109112 |
_version_ |
1766211165521707008 |