UDTR — Radar mondial des droits de la Nature

Habitat filtering on benthic meiofauna across tide pools and nearby sandy beaches

Identification

Clé publique

radar:r-914675716f540e1771da31cf6b4f8b9c

Auteurs

Gabriel Coppo · Sérgio A. Netto · Angelo Fraga Bernardino

Année déclarée

2025

Langue déclarée

en

Type source

article

Première détection

2026-11-13T12:49:57.957498+00:00

Dernière observation des métadonnées

2026-11-13T12:49:57.957498+00:00

Dernière vérification HTTP

Non effectuée

Institutions déclarées par la source

Universidade Federal do Espírito Santo

Pays d’affiliation déclarés

BR

Résumé documentaire — langue originale

Introduction Species sorting by environmental gradients is an important driver of benthic meiofaunal biodiversity in marine ecosystems, but there are few attempts to test these effects in coastal habitats. Methods In this study, we evaluated the importance of habitat filtering in shaping meiofaunal communities across rocky tide pools and nearby sandy beaches in the Eastern Brazilian Marine Ecoregion, SW Atlantic. We proposed two hypotheses: (i) rocky tide pools exhibit a subset (nestedness effects) of the sandy beach meiofaunal assemblage, with lower phylogenetic diversity; and (ii) the meiofaunal assemblage composition and phylogenetic diversity vary seasonally over the year in both habitats. We used metabarcoding (V9 hypervariable region from 18S gene) from sediment samples (n = 70) to assess the meiofaunal assemblage composition and phylogenetic diversity, and tested spatial patterns of nestedness and turnover across habitats, seasons, and locations. Results Compared to the neighboring sandy beaches, tide pools had higher temperatures (+ 1.8°C) and lower quality organic matter. Contrary to our hypothesis, community turnover was the main driver of meiofaunal phylogenetic diversity and composition in both tide pools and nearby sandy beaches. The tide pool assemblages showed a lower phylogenetic diversity and taxon richness than the neighboring sandy beaches. Discussion Our study supports the importance of environmental drivers on benthic meiofaunal phylogenetic diversity within tide pools and sandy beaches and revealed distinct assemblages in these neighboring coastal intertidal habitats.

Identifiants

OPENALEX

https://openalex.org/W4410572140

DOI

10.3389/fmars.2025.1534512

Repères documentaires

Famille documentaire

article

Types déclarés par les sources

article

Éditeurs

Frontiers Media

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Sources

OpenAlex · Document 1

• Document · https://doi.org/10.3389/fmars.2025.1534512

Statut documentaire

Pertinence à examiner

Bibliothèque

Cette identité n’est pas encore intégrée à la Bibliothèque juridique.