Modelling the alpha and beta diversity in the community of copepods across tropical and subtropical Atlantic ecoregions: a taxonomic and functional approach DOI Creative Commons

Lorena Martínez-Leiva,

José M. Landeira, M.L. Fernández-de-Puelles

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 15, 2024

Abstract Copepods, the most abundant individuals of mesozooplankton group, play a pivotal role in marine food webs and carbon cycling. However, few studies have focused on their diversity environmental factors influencing it. The objective present study is to model alpha beta copepods across tropical subtropical ecoregions Atlantic Ocean using both taxonomic functional approaches. used dataset 226 copepod species collected by stratified plankton hauls (0-800 m depth) equatorial Atlantic, from oligotrophic waters close Brazilian coast more productive Mauritanian Upwelling. To perform analysis, six traits related behaviour, growth, reproduction were selected. Several diversities estimated metrics (SR, Δ+, Λ+) (FDis, FEve, FDiv, FOri, FSpe), modelized with GAM spatial, temporal, gradients. two components (turnover nestedness) shared between ecoregions. surface layers oligotrophic, equatorial, Cape Verde displayed higher values indices. More unpredictable indices, although they showed tendency be positive depth during daytime. analysis revealed spatial gradients as key modelling diversity. A similar pattern was found diversity, it also influenced night/daytime. Species turnover drove whereas nesting characterized community structure changed geographical regions, but this not coupled shifts; instead, redundancy observed.

Language: Английский

Spring copepod functional diversity associated with the oceanographic fronts of the Southwestern Atlantic Ocean DOI

Georgina Daniela Cepeda,

Érica Caroline Becker,

Carla Derisio

et al.

Progress In Oceanography, Journal Year: 2025, Volume and Issue: unknown, P. 103421 - 103421

Published: Jan. 1, 2025

Language: Английский

Citations

1
Emergent Relationships Between the Functional Diversity of Marine Planktonic Copepods and Ecosystem Functioning in the Global Ocean DOI Creative Commons
Fabio Benedetti,

Jonas Wydler,

Corentin Clerc

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(3)

Published: March 1, 2025

ABSTRACT Copepods are a major group of the mesozooplankton and thus key part marine ecosystems worldwide. Their fitness life strategies determined by their functional traits which allow different species to exploit various ecological niches. The range expressed in community defines its diversity (FD), can be used investigate how communities utilize resources shape ecosystem processes. However, spatial patterns copepod FD relation functioning remain poorly understood on global scale. Here, we use estimates composition derived from distribution models combination with indicators multiple facets FD, relationships richness We also project anthropogenic climate change will impact FD. find that respond variable strength directions: richness, divergence, dispersion increase whereas evenness trait dissimilarity decrease. primary production, biomass carbon export efficiency decrease divergence dispersion. This suggests may disproportionally influenced few dominant line mass ratio hypothesis. Furthermore, is projected promote homogenization globally, globally. emergent covariance between functions here strongly call for better integrating measurements into field studies across scales understand effects changing zooplankton biodiversity functioning.

Language: Английский

Citations

1
Geographical patterns of mesozooplankton functional diversity in the northwestern Pacific DOI

Ruping Ge,

Hongju Chen, Tianying Chen

et al.

Progress In Oceanography, Journal Year: 2024, Volume and Issue: 221, P. 103195 - 103195

Published: Jan. 7, 2024

Language: Английский

Citations

3
Modelling the alpha and beta diversity of copepods across tropical and subtropical Atlantic ecoregions DOI Creative Commons

Lorena Martínez-Leiva,

José M. Landeira, María Luz Fernández

et al.

npj Biodiversity, Journal Year: 2025, Volume and Issue: 4(1)

Published: Jan. 31, 2025

Copepods, the most abundant individuals of mesozooplankton, play a pivotal role in marine food webs and carbon cycling. However, few studies have focused on their diversity environmental factors influencing it. The objective present study is to model alpha beta copepods across tropical subtropical ecoregions Atlantic Ocean using both taxonomic functional approaches. used dataset 226 copepod species collected by stratified plankton hauls (0-800 m depth) equatorial Atlantic, from oligotrophic waters close Brazilian coast more productive Mauritanian Upwelling. To perform analysis, six traits related behaviour, growth, reproduction were selected. Several diversities estimated metrics (SR, Δ+, Λ+) (FDis, FEve, FDiv, FOri, FSpe), modelized with GAM spatial gradients, day/night. overall two components β-diversity (turnover nestedness) shared between depth stations. surface layers stations oligotrophic, equatorial, Cape Verde displayed higher values α-diversity. More unpredictable facets α-diversity, although they showed tendency be positive during daytime. analysis revealed gradients as key modelling whereas was relevant for turnover component drove station, nestedness acquired relevance β-diversity. structure community varied spatially depths ecoregions, but this not linked changes same magnitude.

Language: Английский

Citations

0
Hypoxia zone and functional group losses in zooplankton community structure DOI Creative Commons
Judson da Cruz Lopes da Rosa

Vértices, Journal Year: 2025, Volume and Issue: 26(3), P. e26323377 - e26323377

Published: April 8, 2025

The oxygen in the oceans is decreasing, and this topic little commented on scientific studies. reduction occurs mainly places that receive a greater availability of nutrients, either naturally or anthropically, which increases excessive proliferation phytoplankton develop hypoxic zones. Hypoxic zones are increasing with effects land use fertilizers, global warming, climate change among other reasons. In review, following were analyzed: 1) hypoxia zone increase associated natural anthropogenic such as: eutrophication, warming change, 2) correlation found pelagic food web loss functional group emphasis zooplankton community as response to adaptations zone. Hypoxia have been causing changes scale, effect becomes even more evident if steps not taken reduce effluents environmental imbalances.

Language: Английский

Citations

0
Hidden complexities in the base of the pelagic food web: correlates between zooplankton and chlorophyll vary by functional feeding group. DOI
Rosemary Hartman, Christina Burdi, Nick L. Rasmussen

et al.

Published: April 9, 2025

Abstract Zooplankton in estuaries provide an important link between primary production and fish. Resource managers the San Francisco Estuary have several initiatives designed to increase phytoplankton production, expecting zooplankton increases follow. However, it is not always clear if biomass will lead biomass. We used data from twenty years of chlorophyll-a monitoring estuary create linear models abundance versus concentration, salinity, turbidity, microzooplankton (rotifers copepod nauplii) for twelve most abundant taxa, categorized by functional feeding guilds (herbivores, omnivores, predators). then fifty assess changes relative three guilds, over time salinity. found that herbivorous taxa were positively related whereas predatory not, omnivorous had mixed results. There positive correlations target taxa. also documented dominance herbivores freshwater regions while dominate brackish water. has been all salinity zones time, Taken together, these results indicate management actions may be effective areas where but less water dominate. The copepods food chain length therefore decrease trophic efficiency transfer carbon fishes at top web.

Language: Английский

Citations

0
Exploring seasonal fluctuations in the zooplankton communities from the WPWP epipelagic and mesopelagic zones by means of eDNA metabarcoding DOI

Yunzhi Feng,

Dong Sun,

Qianwen Shao

et al.

Journal of Oceanology and Limnology, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Language: Английский

Citations

0
Uncovering the dynamic evolution of microbes and n-alkanes: Insights from the Kuroshio Extension in the Northwest Pacific Ocean DOI

Xin Hu,

Xinping Wang, Shanshan Zhao

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 875, P. 162418 - 162418

Published: Feb. 27, 2023

Language: Английский

Citations

7
Harmonizing marine zooplankton trait data toward a mechanistic understanding of ecosystem functioning DOI Creative Commons
Patrick R. Pata, Brian P. V. Hunt

Limnology and Oceanography, Journal Year: 2023, Volume and Issue: unknown

Published: Dec. 22, 2023

Abstract Compiling trait information promotes discovery and innovation in using trait‐based approaches ecology. Various zooplankton datasets are stored unlinked data repositories, diverse structures, have varying levels of complexity. These require standardization harmonization to allow interoperability limit the duplication efforts time‐consuming error‐prone task compilation. This study aggregated harmonized 33 traits supplemented these with more than 150 references into a single database an initial set 56 for 3535 marine species. The has long table structure entity‐attribute‐value format includes taxonomic ancillary metadata, source provenance preserving how were originally recorded. is both at individual level (Level 1) as species means 2). Level 1 57,615 rows records 2 14,977 unique trait‐taxon records. We evaluated coverage data, representation, strategies filling‐in gaps. Comparison value estimation identified allometric scaling be accurate taxon‐level generalization imputation. centralized aims extendable future‐proof promote sharing, FAIR (findable, accessible, interoperable, reusable) practices, reproducibility.

Language: Английский

Citations

6
Divergent patterns of zooplankton connectivity in the epipelagic and mesopelagic zones of the eastern North Pacific DOI Creative Commons
Stephanie A. Matthews, Leocadio Blanco‐Bercial

Ecology and Evolution, Journal Year: 2023, Volume and Issue: 13(11)

Published: Nov. 1, 2023

Abstract Due to historical under‐sampling of the deep ocean, distributional ranges mesopelagic zooplankton are not well documented, leading uncertainty about mechanisms that shape midwater community composition. Using a combination DNA metabarcoding (18S‐V4 and mtCOI) trait‐based analysis, we characterized diversity composition in upper 1000 m northeast Pacific Ocean. We tested whether North Transition Zone is biogeographic boundary region for zooplankton. also taxa occupying different vertical habitats exhibiting ecological traits differed temperature, Chl‐ , dissolved oxygen conditions inhabited. The depth maximum taxonomic richness deepened with increasing latitude Pacific. Community similarity zone increased comparison epipelagic zone, no evidence was found between previously delineated biogeochemical provinces. Epipelagic exhibited broader temperature than taxa. Within epipelagic, had ranges. However, were distributed across wider ranges, within mesopelagic, only covaried Environmental varied among traits, both strongest differences environmental observed or without diel migration behavior. Our results suggest species can influence differential effects physical dispersal selection shaping distributions.

Language: Английский

Citations

4