Resonance-induced multimodal body-size distributions in ecosystems.
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| Title: | Resonance-induced multimodal body-size distributions in ecosystems. |
|---|---|
| Authors: | Lampert, Adam1,2 alampert@ucdavis.edu, Tlusty, Tsvi1,3 |
| Source: | Proceedings of the National Academy of Sciences of the United States of America. 1/2/2013, Vol. 110 Issue 1, p205-209. 5p. |
| Subjects: | Competition (Biology), Ecological niche, Phytoplankton populations, Animal migration, Body size, Zoogeography |
| Abstract: | The size of an organism reflects its metabolic rate, growth rate, mortality, and other important characteristics; therefore, the distribution of body size is a major determinant of ecosystem structure and function. Body-size distributions often are multimodal, with several peaks of abundant sizes, and previous studies suggest that this is the outcome of niche separation: species from distinct peaks avoid competition by consuming different resources, which results in selection of different sizes in each niche. However, this cannot explain many ecosystems with several peaks competing over the same niche. Here, we suggest an alternative, generic mechanism underlying multimodal size distributions, by showing that the size-dependent tradeoff between reproduction and resource utilization entails an inherent resonance that may induce multiple peaks, all competing over the same niche. Our theory is well fitted to empirical data in various ecosystems, in which both model and measurements show a multimodal, periodically peaked distribution at larger sizes, followed by a smooth tail at smaller sizes. Moreover, we show a universal pattern of size distributions, manifested in the collapse of data from ecosystems of different scales: phytoplankton in a lake, metazoans in a stream, and arthropods in forests. The demonstrated resonance mechanism is generic, suggesting that multimodal distributions of numerous ecological characters emerge from the interplay between local competition and global migration. [ABSTRACT FROM AUTHOR] |
| Copyright of Proceedings of the National Academy of Sciences of the United States of America is the property of National Academy of Sciences 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 | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 84632443 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Resonance-induced multimodal body-size distributions in ecosystems. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Lampert%2C+Adam%22">Lampert, Adam</searchLink><relatesTo>1,2</relatesTo><i> alampert@ucdavis.edu</i><br /><searchLink fieldCode="AR" term="%22Tlusty%2C+Tsvi%22">Tlusty, Tsvi</searchLink><relatesTo>1,3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America%22">Proceedings of the National Academy of Sciences of the United States of America</searchLink>. 1/2/2013, Vol. 110 Issue 1, p205-209. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Competition+%28Biology%29%22">Competition (Biology)</searchLink><br /><searchLink fieldCode="DE" term="%22Ecological+niche%22">Ecological niche</searchLink><br /><searchLink fieldCode="DE" term="%22Phytoplankton+populations%22">Phytoplankton populations</searchLink><br /><searchLink fieldCode="DE" term="%22Animal+migration%22">Animal migration</searchLink><br /><searchLink fieldCode="DE" term="%22Body+size%22">Body size</searchLink><br /><searchLink fieldCode="DE" term="%22Zoogeography%22">Zoogeography</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The size of an organism reflects its metabolic rate, growth rate, mortality, and other important characteristics; therefore, the distribution of body size is a major determinant of ecosystem structure and function. Body-size distributions often are multimodal, with several peaks of abundant sizes, and previous studies suggest that this is the outcome of niche separation: species from distinct peaks avoid competition by consuming different resources, which results in selection of different sizes in each niche. However, this cannot explain many ecosystems with several peaks competing over the same niche. Here, we suggest an alternative, generic mechanism underlying multimodal size distributions, by showing that the size-dependent tradeoff between reproduction and resource utilization entails an inherent resonance that may induce multiple peaks, all competing over the same niche. Our theory is well fitted to empirical data in various ecosystems, in which both model and measurements show a multimodal, periodically peaked distribution at larger sizes, followed by a smooth tail at smaller sizes. Moreover, we show a universal pattern of size distributions, manifested in the collapse of data from ecosystems of different scales: phytoplankton in a lake, metazoans in a stream, and arthropods in forests. The demonstrated resonance mechanism is generic, suggesting that multimodal distributions of numerous ecological characters emerge from the interplay between local competition and global migration. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Proceedings of the National Academy of Sciences of the United States of America is the property of National Academy of Sciences 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: 10.1073/pnas.1211761110 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 205 Subjects: – SubjectFull: Competition (Biology) Type: general – SubjectFull: Ecological niche Type: general – SubjectFull: Phytoplankton populations Type: general – SubjectFull: Animal migration Type: general – SubjectFull: Body size Type: general – SubjectFull: Zoogeography Type: general Titles: – TitleFull: Resonance-induced multimodal body-size distributions in ecosystems. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lampert, Adam – PersonEntity: Name: NameFull: Tlusty, Tsvi IsPartOfRelationships: – BibEntity: Dates: – D: 02 M: 01 Text: 1/2/2013 Type: published Y: 2013 Identifiers: – Type: issn-print Value: 00278424 Numbering: – Type: volume Value: 110 – Type: issue Value: 1 Titles: – TitleFull: Proceedings of the National Academy of Sciences of the United States of America Type: main |
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