Effects of eutrophication on the interaction between algae and grazers in an Andean stream.
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| Title: | Effects of eutrophication on the interaction between algae and grazers in an Andean stream. |
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| Authors: | Donato-Rondón, John Ch.1 jcdonator@unal.edu.co, Morales-Duarte, Silvia Juliana2 sjmoralesd@unal.edu.co, Castro-Rebolledo, María Isabel1 micastror@unal.edu.co |
| Source: | Hydrobiologia. Dec2010, Vol. 657 Issue 1, p159-166. 8p. 1 Diagram, 2 Charts, 5 Graphs. |
| Subjects: | Eutrophication, Rivers, Biotic communities, Food chains, Biomass |
| Geographic Terms: | Andes |
| Abstract: | Nutrient excess is a common disturbance that affects biological interactions in river ecosystems. The response of nutrient supply on primary producers and Tricorythodes sp., a common mayfly grazer, was determined in experimental chambers set in a tropical, high Andean stream. Chambers in an experimentally fertilized reach developed higher amount of both benthic and detached chlorophyll than chambers in an upstream control reach. Fertilization produced a slight increase in grazer biomass, and reduced algal biomass compared to grazer-free chambers. These results show that nutrient excess spread bottom-up effects through the food web, and that relevant top-down effects could also be detected. Eutrophication may produce relevant changes in the food web of tropical high-mountain streams. [ABSTRACT FROM AUTHOR] |
| Copyright of Hydrobiologia is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 53978933 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effects of eutrophication on the interaction between algae and grazers in an Andean stream. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Donato-Rondón%2C+John+Ch%2E%22">Donato-Rondón, John Ch.</searchLink><relatesTo>1</relatesTo><i> jcdonator@unal.edu.co</i><br /><searchLink fieldCode="AR" term="%22Morales-Duarte%2C+Silvia+Juliana%22">Morales-Duarte, Silvia Juliana</searchLink><relatesTo>2</relatesTo><i> sjmoralesd@unal.edu.co</i><br /><searchLink fieldCode="AR" term="%22Castro-Rebolledo%2C+María+Isabel%22">Castro-Rebolledo, María Isabel</searchLink><relatesTo>1</relatesTo><i> micastror@unal.edu.co</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Hydrobiologia%22">Hydrobiologia</searchLink>. Dec2010, Vol. 657 Issue 1, p159-166. 8p. 1 Diagram, 2 Charts, 5 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Eutrophication%22">Eutrophication</searchLink><br /><searchLink fieldCode="DE" term="%22Rivers%22">Rivers</searchLink><br /><searchLink fieldCode="DE" term="%22Biotic+communities%22">Biotic communities</searchLink><br /><searchLink fieldCode="DE" term="%22Food+chains%22">Food chains</searchLink><br /><searchLink fieldCode="DE" term="%22Biomass%22">Biomass</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Andes%22">Andes</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Nutrient excess is a common disturbance that affects biological interactions in river ecosystems. The response of nutrient supply on primary producers and Tricorythodes sp., a common mayfly grazer, was determined in experimental chambers set in a tropical, high Andean stream. Chambers in an experimentally fertilized reach developed higher amount of both benthic and detached chlorophyll than chambers in an upstream control reach. Fertilization produced a slight increase in grazer biomass, and reduced algal biomass compared to grazer-free chambers. These results show that nutrient excess spread bottom-up effects through the food web, and that relevant top-down effects could also be detected. Eutrophication may produce relevant changes in the food web of tropical high-mountain streams. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Hydrobiologia is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s10750-010-0194-y Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 159 Subjects: – SubjectFull: Eutrophication Type: general – SubjectFull: Rivers Type: general – SubjectFull: Biotic communities Type: general – SubjectFull: Food chains Type: general – SubjectFull: Biomass Type: general – SubjectFull: Andes Type: general Titles: – TitleFull: Effects of eutrophication on the interaction between algae and grazers in an Andean stream. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Donato-Rondón, John Ch. – PersonEntity: Name: NameFull: Morales-Duarte, Silvia Juliana – PersonEntity: Name: NameFull: Castro-Rebolledo, María Isabel IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2010 Type: published Y: 2010 Identifiers: – Type: issn-print Value: 00188158 Numbering: – Type: volume Value: 657 – Type: issue Value: 1 Titles: – TitleFull: Hydrobiologia Type: main |
| ResultId | 1 |
