Eintrag weiter verarbeiten
Productivity, consumers, and the structure of a river food chain.
Gespeichert in:
| Zeitschriftentitel: | Proceedings of the National Academy of Sciences |
|---|---|
| Personen und Körperschaften: | , |
| In: | Proceedings of the National Academy of Sciences, 90, 1993, 4, S. 1384-1387 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Proceedings of the National Academy of Sciences
|
| Schlagwörter: |
| author_facet |
Wootton, J T Power, M E Wootton, J T Power, M E |
|---|---|
| author |
Wootton, J T Power, M E |
| spellingShingle |
Wootton, J T Power, M E Proceedings of the National Academy of Sciences Productivity, consumers, and the structure of a river food chain. Multidisciplinary |
| author_sort |
wootton, j t |
| spelling |
Wootton, J T Power, M E 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.90.4.1384 <jats:p>We tested models of food chain dynamics in experimentally manipulated channels within a natural river. As light levels increased, primary productivity and the biomass of algae and primary predators increased, but the biomass of grazers remained relatively constant. In the presence of a fourth trophic level, algae and primary predators decreased, but grazers increased. These results match predictions of food chain models based on classical predator-prey theory and suggest that simple models of multitrophic level interactions are sometimes sufficient to predict the responses of natural communities to changes in environmental productivity and predators.</jats:p> Productivity, consumers, and the structure of a river food chain. Proceedings of the National Academy of Sciences |
| doi_str_mv |
10.1073/pnas.90.4.1384 |
| facet_avail |
Online Free |
| format |
ElectronicArticle |
| fullrecord |
blob:ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA3My9wbmFzLjkwLjQuMTM4NA |
| id |
ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA3My9wbmFzLjkwLjQuMTM4NA |
| institution |
DE-D275 DE-Bn3 DE-Brt1 DE-Zwi2 DE-D161 DE-Gla1 DE-Zi4 DE-15 DE-Pl11 DE-Rs1 DE-105 DE-14 DE-Ch1 DE-L229 |
| imprint |
Proceedings of the National Academy of Sciences, 1993 |
| imprint_str_mv |
Proceedings of the National Academy of Sciences, 1993 |
| issn |
0027-8424 1091-6490 |
| issn_str_mv |
0027-8424 1091-6490 |
| language |
English |
| mega_collection |
Proceedings of the National Academy of Sciences (CrossRef) |
| match_str |
wootton1993productivityconsumersandthestructureofariverfoodchain |
| publishDateSort |
1993 |
| publisher |
Proceedings of the National Academy of Sciences |
| recordtype |
ai |
| record_format |
ai |
| series |
Proceedings of the National Academy of Sciences |
| source_id |
49 |
| title |
Productivity, consumers, and the structure of a river food chain. |
| title_unstemmed |
Productivity, consumers, and the structure of a river food chain. |
| title_full |
Productivity, consumers, and the structure of a river food chain. |
| title_fullStr |
Productivity, consumers, and the structure of a river food chain. |
| title_full_unstemmed |
Productivity, consumers, and the structure of a river food chain. |
| title_short |
Productivity, consumers, and the structure of a river food chain. |
| title_sort |
productivity, consumers, and the structure of a river food chain. |
| topic |
Multidisciplinary |
| url |
http://dx.doi.org/10.1073/pnas.90.4.1384 |
| publishDate |
1993 |
| physical |
1384-1387 |
| description |
<jats:p>We tested models of food chain dynamics in experimentally manipulated channels within a natural river. As light levels increased, primary productivity and the biomass of algae and primary predators increased, but the biomass of grazers remained relatively constant. In the presence of a fourth trophic level, algae and primary predators decreased, but grazers increased. These results match predictions of food chain models based on classical predator-prey theory and suggest that simple models of multitrophic level interactions are sometimes sufficient to predict the responses of natural communities to changes in environmental productivity and predators.</jats:p> |
| container_issue |
4 |
| container_start_page |
1384 |
| container_title |
Proceedings of the National Academy of Sciences |
| container_volume |
90 |
| format_de105 |
Article, E-Article |
| format_de14 |
Article, E-Article |
| format_de15 |
Article, E-Article |
| format_de520 |
Article, E-Article |
| format_de540 |
Article, E-Article |
| format_dech1 |
Article, E-Article |
| format_ded117 |
Article, E-Article |
| format_degla1 |
E-Article |
| format_del152 |
Buch |
| format_del189 |
Article, E-Article |
| format_dezi4 |
Article |
| format_dezwi2 |
Article, E-Article |
| format_finc |
Article, E-Article |
| format_nrw |
Article, E-Article |
| _version_ |
1792345167654551558 |
| geogr_code |
not assigned |
| last_indexed |
2024-03-01T17:19:12.148Z |
| geogr_code_person |
not assigned |
| openURL |
url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fvufind.svn.sourceforge.net%3Agenerator&rft.title=Productivity%2C+consumers%2C+and+the+structure+of+a+river+food+chain.&rft.date=1993-02-15&genre=article&issn=1091-6490&volume=90&issue=4&spage=1384&epage=1387&pages=1384-1387&jtitle=Proceedings+of+the+National+Academy+of+Sciences&atitle=Productivity%2C+consumers%2C+and+the+structure+of+a+river+food+chain.&aulast=Power&aufirst=M+E&rft_id=info%3Adoi%2F10.1073%2Fpnas.90.4.1384&rft.language%5B0%5D=eng |
| SOLR | |
| _version_ | 1792345167654551558 |
| author | Wootton, J T, Power, M E |
| author_facet | Wootton, J T, Power, M E, Wootton, J T, Power, M E |
| author_sort | wootton, j t |
| container_issue | 4 |
| container_start_page | 1384 |
| container_title | Proceedings of the National Academy of Sciences |
| container_volume | 90 |
| description | <jats:p>We tested models of food chain dynamics in experimentally manipulated channels within a natural river. As light levels increased, primary productivity and the biomass of algae and primary predators increased, but the biomass of grazers remained relatively constant. In the presence of a fourth trophic level, algae and primary predators decreased, but grazers increased. These results match predictions of food chain models based on classical predator-prey theory and suggest that simple models of multitrophic level interactions are sometimes sufficient to predict the responses of natural communities to changes in environmental productivity and predators.</jats:p> |
| doi_str_mv | 10.1073/pnas.90.4.1384 |
| facet_avail | Online, Free |
| format | ElectronicArticle |
| format_de105 | Article, E-Article |
| format_de14 | Article, E-Article |
| format_de15 | Article, E-Article |
| format_de520 | Article, E-Article |
| format_de540 | Article, E-Article |
| format_dech1 | Article, E-Article |
| format_ded117 | Article, E-Article |
| format_degla1 | E-Article |
| format_del152 | Buch |
| format_del189 | Article, E-Article |
| format_dezi4 | Article |
| format_dezwi2 | Article, E-Article |
| format_finc | Article, E-Article |
| format_nrw | Article, E-Article |
| geogr_code | not assigned |
| geogr_code_person | not assigned |
| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA3My9wbmFzLjkwLjQuMTM4NA |
| imprint | Proceedings of the National Academy of Sciences, 1993 |
| imprint_str_mv | Proceedings of the National Academy of Sciences, 1993 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
| issn | 0027-8424, 1091-6490 |
| issn_str_mv | 0027-8424, 1091-6490 |
| language | English |
| last_indexed | 2024-03-01T17:19:12.148Z |
| match_str | wootton1993productivityconsumersandthestructureofariverfoodchain |
| mega_collection | Proceedings of the National Academy of Sciences (CrossRef) |
| physical | 1384-1387 |
| publishDate | 1993 |
| publishDateSort | 1993 |
| publisher | Proceedings of the National Academy of Sciences |
| record_format | ai |
| recordtype | ai |
| series | Proceedings of the National Academy of Sciences |
| source_id | 49 |
| spelling | Wootton, J T Power, M E 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.90.4.1384 <jats:p>We tested models of food chain dynamics in experimentally manipulated channels within a natural river. As light levels increased, primary productivity and the biomass of algae and primary predators increased, but the biomass of grazers remained relatively constant. In the presence of a fourth trophic level, algae and primary predators decreased, but grazers increased. These results match predictions of food chain models based on classical predator-prey theory and suggest that simple models of multitrophic level interactions are sometimes sufficient to predict the responses of natural communities to changes in environmental productivity and predators.</jats:p> Productivity, consumers, and the structure of a river food chain. Proceedings of the National Academy of Sciences |
| spellingShingle | Wootton, J T, Power, M E, Proceedings of the National Academy of Sciences, Productivity, consumers, and the structure of a river food chain., Multidisciplinary |
| title | Productivity, consumers, and the structure of a river food chain. |
| title_full | Productivity, consumers, and the structure of a river food chain. |
| title_fullStr | Productivity, consumers, and the structure of a river food chain. |
| title_full_unstemmed | Productivity, consumers, and the structure of a river food chain. |
| title_short | Productivity, consumers, and the structure of a river food chain. |
| title_sort | productivity, consumers, and the structure of a river food chain. |
| title_unstemmed | Productivity, consumers, and the structure of a river food chain. |
| topic | Multidisciplinary |
| url | http://dx.doi.org/10.1073/pnas.90.4.1384 |