Salmon carcasses influence genetic linkages between forests and streams

Carri J. Leroy, Dylan G. Fischer, Walton M. Andrews, Lisa Belleveau, Clyde H. Barlow, Jennifer A. Schweitzer, Joseph K. Bailey, Jane C Marks, Jeff C. Kallestad

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Biodiversity at many scales (functional group, species, genetic) can result in emergent ecological patterns. Here we explore the influence of tree genotypic variation and diversity on in-stream ecosystem processes and aquatic communities. We test whether genetically diverse inputs of leaf litter interact with a keystone organism, anadromous salmon, to influence in-stream ecosystem function. We used reach-level manipulation of salmon carcasses and leaf litter bags to examine how nutrient inputs interact with genetic variation in leaf litter decomposition. Genotypic variation in black cottonwood (Populus balsamifera ssp. trichocarpa) significantly influenced leaf litter chemistry, litter mass loss, and fungal biomass, but these variables were only weakly influenced by salmon carcass presence or a genotype × salmon (G × E) interaction. Mixtures of genotypes tended to demonstrate antagonistic effects (slower than expected decomposition) in the absence of salmon, but synergistic effects (faster than expected decomposition) when salmon were present. Our findings suggest that the influence of plant genotypic variation in linking aquatic and terrestrial ecosystems may be altered and in some cases intensified in the presence of a keystone vertebrate species.

Original languageEnglish (US)
Pages (from-to)910-920
Number of pages11
JournalCanadian Journal of Fisheries and Aquatic Sciences
Volume73
Issue number6
DOIs
StatePublished - 2016

Fingerprint

leaf litter
salmon
linkage (genetics)
plant litter
decomposition
genotype
aquatic community
degradation
ecosystem function
genotype mixtures
terrestrial ecosystem
Populus balsamifera
aquatic ecosystem
functional group
genetic variation
Populus balsamifera subsp. trichocarpa
aquatic communities
vertebrate
litter
ecosystems

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology, Evolution, Behavior and Systematics

Cite this

Leroy, C. J., Fischer, D. G., Andrews, W. M., Belleveau, L., Barlow, C. H., Schweitzer, J. A., ... Kallestad, J. C. (2016). Salmon carcasses influence genetic linkages between forests and streams. Canadian Journal of Fisheries and Aquatic Sciences, 73(6), 910-920. https://doi.org/10.1139/cjfas-2015-0439

Salmon carcasses influence genetic linkages between forests and streams. / Leroy, Carri J.; Fischer, Dylan G.; Andrews, Walton M.; Belleveau, Lisa; Barlow, Clyde H.; Schweitzer, Jennifer A.; Bailey, Joseph K.; Marks, Jane C; Kallestad, Jeff C.

In: Canadian Journal of Fisheries and Aquatic Sciences, Vol. 73, No. 6, 2016, p. 910-920.

Research output: Contribution to journalArticle

Leroy, CJ, Fischer, DG, Andrews, WM, Belleveau, L, Barlow, CH, Schweitzer, JA, Bailey, JK, Marks, JC & Kallestad, JC 2016, 'Salmon carcasses influence genetic linkages between forests and streams', Canadian Journal of Fisheries and Aquatic Sciences, vol. 73, no. 6, pp. 910-920. https://doi.org/10.1139/cjfas-2015-0439
Leroy, Carri J. ; Fischer, Dylan G. ; Andrews, Walton M. ; Belleveau, Lisa ; Barlow, Clyde H. ; Schweitzer, Jennifer A. ; Bailey, Joseph K. ; Marks, Jane C ; Kallestad, Jeff C. / Salmon carcasses influence genetic linkages between forests and streams. In: Canadian Journal of Fisheries and Aquatic Sciences. 2016 ; Vol. 73, No. 6. pp. 910-920.
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