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Article

Population density fluctuations change the selection gradient in Eurasian perch.

The American naturalist - 1 Apr 2009

Svanbäck Richard, Persson Lennart

Abstract excerpt

A high degree of trophic polymorphism has been associated with the absence of high variability in population density. An explanation for this pattern is that density fluctuations may influence selective regime forms in populations. Still, only few studies have investigated evolutionary dynamics in fluctuating populations. Here we report on a multiyear study of the Eurasian perch, wherein the fitness landscape...

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PMID: 19226234
DOI: 10.1086/597223

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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