Effect of terrigenous sedimentation on mangrove physiology and associated macrobenthic communities
Pourquoi ce travail est dans la base
Une base qui oublie comment elle a trouvé un travail ne peut pas être vérifiée. Voici les voies qui ont admis celui-ci.
Notice bibliographique
Résumé
MEPS Marine Ecology Progress Series Contact the journal Facebook (Twitter) RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 270:71-82 (2004) - doi:10.3354/meps270071 Effects of terrigenous sedimentation on mangrove physiology and associated macrobenthic communities J. Ellis1,2,*, P. Nicholls1, R. Craggs1, D. Hofstra1, J. Hewitt1 1National Institute of Water and Atmospheric Research, PO Box 11-115, Hamilton, New Zealand 2Present address: 18 Cabot Street, St John¹s, Newfoundland A1C 1Z4, Canada *Email: amahon@actrix.co.nz ABSTRACT: In New Zealand, one species of mangrove, Avicennia marina var. australasica, forms a characteristic and often an extensive feature of the tidal mudflats of harbours and estuaries. Within their natural range, mangroves have generally increased in abundance in New Zealand over the last 100 yr in response to increased sedimentation associated with concurrent changes in catchment land use. However, little information is available about the ecological consequences of changes in the extent of mangrove habitats under varying sedimentation regimes. We therefore conducted a study to determine the effects of high sedimentation rates on mangrove plant communities and associated benthic community composition. We selected an estuary that is experiencing high rates of sedimentation (as high as 23 mm yr-1) and associated increases in mangrove area. We recorded clear differences in both plant and benthic communities along a gradient of decreasing sedimentation. Mangrove architecture (such as height and density of plants) and health (as measured by chlorophyll a fluorescence) were linked to high mud content of the sediment and elevated sedimentation patterns. Mangrove plants at the upper landward sites, characterised by a high percentage of mud and high total nutrients (total phosphorus [TP] and total nitrogen [TN]) and organic content, were taller than those at the seaward sites and had a larger number of pneumatophores as well as the greatest number of new seedlings. However, benthic macrofaunal diversity and abundance within the mangrove habitats were lower than expected, and clear functional differences were found between habitats with differing sedimentation patterns. Sites with high sedimentation rates had lower numbers of suspension feeders, low macrobenthic diversity, and were dominated by deposit-feeding polychaetes and oligochaetes. The diversity and density of benthic macrofaunal communities was, however, lower than that of sandflat communities for both mangrove habitats and adjacent intertidal mudflats in these sheltered areas, suggesting a response to the increased silt/clay from sedimentation rather than to the mangroves themselves. Our study demonstrates the potential for functional and structural effects on benthic communities on a larger spatial scale in estuarine areas experiencing high rates of sedimentation. KEY WORDS: Mangrove · Benthic community composition · Sedimentation · Growth · Physiological condition · Estuary · New Zealand Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 270. Online publication date: April 14, 2004 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2004 Inter-Research.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle