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Indirect effects on fitness between individuals that have never met via an extended phenotype

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dc.contributor.authorFisher, David N.
dc.contributor.authorHaines, Jessica A.
dc.contributor.authorBoutin, Stan
dc.contributor.authorDantzer, Ben
dc.contributor.authorLane, Jeffrey E.
dc.contributor.authorColtman, David W.
dc.contributor.authorMcAdam, Andrew G.
dc.date.accessioned2022-10-31T19:41:18Z
dc.date.available2022-10-31T19:41:18Z
dc.date.issued2019
dc.description.abstractInteractions between organisms are ubiquitous and have important consequences for phenotypes and fitness. Individuals can even influence those they never meet, if they have extended phenotypes that alter the environments others experience. North American red squirrels (Tamiasciurus hudsonicus) guard food hoards, an extended phenotype that typically outlives the individual and is usually subsequently acquired by non-relatives. Hoarding by previous owners can, therefore, influence subsequent owners. We found that red squirrels breed earlier and had higher lifetime fitness if the previous hoard owner was a male. This was driven by hoarding behaviour, as males and mid-aged squirrels had the largest hoards, and these effects persisted across owners, such that if the previous owner was male or died in mid-age, subsequent occupants had larger hoards. Individuals can, therefore, influence each other's resource-dependent traits and fitness without ever meeting, such that the past can influence contemporary population dynamics through extended phenotypes.
dc.description.urihttps://library.macewan.ca/cgi-bin/SFX/url.pl/DK9
dc.identifier.citationD. Fisher, J.A. Haines, S. Boutin, B. Dantzer, J.E. Lane, D.W. Coltman, A.G. McAdam. 2019. Indirect effects on fitness between individuals that have never met via an extended phenotype. Ecology Letters 22:697-706. https://doi.org/10.1111/ele.13230
dc.identifier.doihttps://doi.org/10.1111/ele.13230
dc.identifier.urihttps://hdl.handle.net/20.500.14078/2856
dc.language.isoen
dc.rightsAll Rights Reserved
dc.subjectextended phenotype
dc.subjectindirect effect
dc.subjectinheritance
dc.subjectKRSP
dc.subjectquantitative genetics
dc.subjectresource hoarding
dc.subjectTamiasciurus
dc.subjectterritory
dc.titleIndirect effects on fitness between individuals that have never met via an extended phenotypeen
dc.typeArticle

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Department of Biological Sciences