his.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Conditions for Eltonian Pyramids in Lotka-Volterra Food Chains
University of Skövde, School of Bioscience. University of Skövde, The Systems Biology Research Centre. Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden. (Ekologisk modellering, Ecological Modelling Group)ORCID iD: 0000-0002-5234-9576
2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, 10912Article in journal (Refereed) Published
Abstract [en]

In ecological communities consumers (excluding parasites and parasitoids) are in general larger and less numerous than their resource. This results in a well-known observation known as 'Eltonian pyramids' or the ` pyramid of numbers', and metabolic arguments suggest that this pattern is independent of the number of trophic levels in a system. At the same time, Lotka-Volterra (LV) consumer-resource models are a frequently used tool to study many questions in community ecology, but their capacity to produce Eltonian pyramids has not been formally analysed. Here, I address this knowledge gap by investigating if and when LV food chain models give rise to Eltonian pyramids. I show that Eltonian pyramids are difficult to reproduce without density-dependent mortality in the consumers, unless biologically plausible relationships between mortality rate and interaction strength are taken into account.

Place, publisher, year, edition, pages
2017. Vol. 7, 10912
National Category
Ecology
Research subject
Ecological Modelling Group
Identifiers
URN: urn:nbn:se:his:diva-14167DOI: 10.1038/s41598-017-11204-1ISI: 000409562000059Scopus ID: 2-s2.0-85029052365OAI: oai:DiVA.org:his-14167DiVA: diva2:1144692
Available from: 2017-09-27 Created: 2017-09-27 Last updated: 2017-09-27Bibliographically approved

Open Access in DiVA

fulltext(1898 kB)6 downloads
File information
File name FULLTEXT01.pdfFile size 1898 kBChecksum SHA-512
4dc3dc74af1f56b7db06e3dde11736b332941ab770bec9041e41312b2fe90731cb62b5c03e20702b7b6c4aa4328f8c5f1d7904900ac483cb03238487f8f6b6a3
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Jonsson, Tomas
By organisation
School of BioscienceThe Systems Biology Research Centre
In the same journal
Scientific Reports
Ecology

Search outside of DiVA

GoogleGoogle Scholar
Total: 6 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 32 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf