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Nutrient Enrichment Increases Mortality of Mangroves

Nutrient enrichment of the coastal zone places intense pressure on marine communities. Previous studies have shown that growth of intertidal mangrove forests is accelerated with enhanced nutrient availability. However, nutrient enrichment favours growth of shoots relative to roots, thus enhancing gr...

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Detalles Bibliográficos
Autores principales: Lovelock, Catherine E., Ball, Marilyn C., Martin, Katherine C., C. Feller, Ilka
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2679148/
https://www.ncbi.nlm.nih.gov/pubmed/19440554
http://dx.doi.org/10.1371/journal.pone.0005600
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author Lovelock, Catherine E.
Ball, Marilyn C.
Martin, Katherine C.
C. Feller, Ilka
author_facet Lovelock, Catherine E.
Ball, Marilyn C.
Martin, Katherine C.
C. Feller, Ilka
author_sort Lovelock, Catherine E.
collection PubMed
description Nutrient enrichment of the coastal zone places intense pressure on marine communities. Previous studies have shown that growth of intertidal mangrove forests is accelerated with enhanced nutrient availability. However, nutrient enrichment favours growth of shoots relative to roots, thus enhancing growth rates but increasing vulnerability to environmental stresses that adversely affect plant water relations. Two such stresses are high salinity and low humidity, both of which require greater investment in roots to meet the demands for water by the shoots. Here we present data from a global network of sites that documents enhanced mortality of mangroves with experimental nutrient enrichment at sites where high sediment salinity was coincident with low rainfall and low humidity. Thus the benefits of increased mangrove growth in response to coastal eutrophication is offset by the costs of decreased resilience due to mortality during drought, with mortality increasing with soil water salinity along climatic gradients.
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spelling pubmed-26791482009-05-18 Nutrient Enrichment Increases Mortality of Mangroves Lovelock, Catherine E. Ball, Marilyn C. Martin, Katherine C. C. Feller, Ilka PLoS One Research Article Nutrient enrichment of the coastal zone places intense pressure on marine communities. Previous studies have shown that growth of intertidal mangrove forests is accelerated with enhanced nutrient availability. However, nutrient enrichment favours growth of shoots relative to roots, thus enhancing growth rates but increasing vulnerability to environmental stresses that adversely affect plant water relations. Two such stresses are high salinity and low humidity, both of which require greater investment in roots to meet the demands for water by the shoots. Here we present data from a global network of sites that documents enhanced mortality of mangroves with experimental nutrient enrichment at sites where high sediment salinity was coincident with low rainfall and low humidity. Thus the benefits of increased mangrove growth in response to coastal eutrophication is offset by the costs of decreased resilience due to mortality during drought, with mortality increasing with soil water salinity along climatic gradients. Public Library of Science 2009-05-19 /pmc/articles/PMC2679148/ /pubmed/19440554 http://dx.doi.org/10.1371/journal.pone.0005600 Text en Lovelock et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Lovelock, Catherine E.
Ball, Marilyn C.
Martin, Katherine C.
C. Feller, Ilka
Nutrient Enrichment Increases Mortality of Mangroves
title Nutrient Enrichment Increases Mortality of Mangroves
title_full Nutrient Enrichment Increases Mortality of Mangroves
title_fullStr Nutrient Enrichment Increases Mortality of Mangroves
title_full_unstemmed Nutrient Enrichment Increases Mortality of Mangroves
title_short Nutrient Enrichment Increases Mortality of Mangroves
title_sort nutrient enrichment increases mortality of mangroves
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2679148/
https://www.ncbi.nlm.nih.gov/pubmed/19440554
http://dx.doi.org/10.1371/journal.pone.0005600
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