In:
PLOS Biology, Public Library of Science (PLoS), Vol. 19, No. 3 ( 2021-3-11), p. e3001145-
Abstract:
Loss in intraspecific diversity can alter ecosystem functions, but the underlying mechanisms are still elusive, and intraspecific biodiversity–ecosystem function (iBEF) relationships have been restrained to primary producers. Here, we manipulated genetic and functional richness of a fish consumer ( Phoxinus phoxinus ) to test whether iBEF relationships exist in consumer species and whether they are more likely sustained by genetic or functional richness. We found that both genotypic and functional richness affected ecosystem functioning, either independently or interactively. Loss in genotypic richness reduced benthic invertebrate diversity consistently across functional richness treatments, whereas it reduced zooplankton diversity only when functional richness was high. Finally, losses in genotypic and functional richness altered functions (decomposition) through trophic cascades. We concluded that iBEF relationships lead to substantial top-down effects on entire food chains. The loss of genotypic richness impacted ecological properties as much as the loss of functional richness, probably because it sustains “cryptic” functional diversity.
Type of Medium:
Online Resource
ISSN:
1545-7885
DOI:
10.1371/journal.pbio.3001145
DOI:
10.1371/journal.pbio.3001145.g001
DOI:
10.1371/journal.pbio.3001145.g002
DOI:
10.1371/journal.pbio.3001145.g003
DOI:
10.1371/journal.pbio.3001145.g004
DOI:
10.1371/journal.pbio.3001145.t001
DOI:
10.1371/journal.pbio.3001145.t002
DOI:
10.1371/journal.pbio.3001145.s001
DOI:
10.1371/journal.pbio.3001145.s002
DOI:
10.1371/journal.pbio.3001145.s003
DOI:
10.1371/journal.pbio.3001145.s004
DOI:
10.1371/journal.pbio.3001145.s005
DOI:
10.1371/journal.pbio.3001145.s006
DOI:
10.1371/journal.pbio.3001145.s007
DOI:
10.1371/journal.pbio.3001145.s008
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2021
detail.hit.zdb_id:
2126773-X
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