| Connecting the dots: responses of coastal ecosystems to changing nutrient concentrations. | |
| | |
MedLine Citation:
|
PMID: 21958109 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Empirical relationships between phytoplankton biomass and nutrient concentrations established across a wide range of different ecosystems constitute fundamental quantitative tools for predicting effects of nutrient management plans. Nutrient management plans based on such relationships, mostly established over trends of increasing rather than decreasing nutrient concentrations, assume full reversibility of coastal eutrophication. Monitoring data from 28 ecosystems located in four well-studied regions were analyzed to study the generality of chlorophyll a versus nutrient relationships and their applicability for ecosystem management. We demonstrate significant differences across regions as well as between specific coastal ecosystems within regions in the response of chlorophyll a to changing nitrogen concentrations. We also show that the chlorophyll a versus nitrogen relationships over time constitute convoluted trajectories rather than simple unique relationships. The ratio of chlorophyll a to total nitrogen almost doubled over the last 30-40 years across all regions. The uniformity of these trends, or shifting baselines, suggest they may result from large-scale changes, possibly associated with global climate change and increasing human stress on coastal ecosystems. Ecosystem management must, therefore, develop adaptation strategies to face shifting baselines and maintain ecosystem services at a sustainable level rather than striving at restoring an ecosystem state of the past. |
| | |
Authors:
|
Jacob Carstensen; Maria Sanchez-Camacho; Carlos M Duarte; Dorte Krause-Jensen; Nuria Marba |
Related Documents
:
|
20690399 - Use of the inhaled corticosteroid to bronchodilator ratio in an audit of the treatment ... 21049219 - Difficult-to-control asthma management through the use of a specific protocol. 20925819 - Factors supporting self-management in parkinson's disease: implications for nursing pra... 12895169 - An update on asthma management. 19139489 - Epidemiology, pathophysiology, and initial management of chronic immune thrombocytopeni... 21878109 - The ricordo approach to semantic interoperability for biomedical data and models: strat... 18605399 - Reflex sympathetic dystrophy: reflections from a clinician. 16124259 - Identification of the larval aggregation pheromone of codling moth, cydia pomonella. 11080979 - The lived body as aesthetic object in anthropological medicine. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-9-29 |
Journal Detail:
|
Title: Environmental science & technology Volume: - ISSN: 1520-5851 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
|
Created Date: 2011-9-30 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0213155 Medline TA: Environ Sci Technol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Efficient Traversal of Beta-Sheet Protein Folding Pathways Using Ensemble Models.
Next Document: Factors associated with chemical burns in Zhejiang province, China: An epidemiological study.