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Diverging responses to threats across generations in zooplankton

Sha, Yongcui LU ; Tesson, Sylvie V.M. LU orcid and Hansson, Lars Anders LU orcid (2020) In Ecology 101(11).
Abstract

Our understanding on how organisms evolutionarily cope with simultaneously occurring, multiple threats over generations is still elusive. In a long-term experimental study, we therefore exposed clones of a freshwater cladoceran, Daphnia magna, to threats from predation and ultraviolet radiation (UVR) during three consecutive parthenogenetic generations. We show that Daphnia can adapt to different sets of threats within three generations through modifying morphology, swimming behavior, or life-history traits. When faced with predator cues, D. magna responded with reduced body size, whereas exposure to UVR induced behavioral tolerance when again exposed to this threat. Such UVR-tolerant behavior was initially associated with a reduced... (More)

Our understanding on how organisms evolutionarily cope with simultaneously occurring, multiple threats over generations is still elusive. In a long-term experimental study, we therefore exposed clones of a freshwater cladoceran, Daphnia magna, to threats from predation and ultraviolet radiation (UVR) during three consecutive parthenogenetic generations. We show that Daphnia can adapt to different sets of threats within three generations through modifying morphology, swimming behavior, or life-history traits. When faced with predator cues, D. magna responded with reduced body size, whereas exposure to UVR induced behavioral tolerance when again exposed to this threat. Such UVR-tolerant behavior was initially associated with a reduced clutch size, but Daphnia restored the reproductive output gradually through generations. The findings advance our understanding on how those common invertebrates, with a global distribution, are able to persist and rapidly become successful in a changing environment.

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Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
adaptation, Daphnia magna, multiple threats, predation, transgenerational plasticity, ultraviolet radiation
in
Ecology
volume
101
issue
11
article number
e03145
publisher
Ecological Society of America
external identifiers
  • pmid:32740928
  • scopus:85089492352
ISSN
0012-9658
DOI
10.1002/ecy.3145
language
English
LU publication?
yes
id
35c77040-be1d-4b99-8e18-52f2d65e28e3
date added to LUP
2020-08-28 10:31:58
date last changed
2024-10-03 07:42:04
@article{35c77040-be1d-4b99-8e18-52f2d65e28e3,
  abstract     = {{<p>Our understanding on how organisms evolutionarily cope with simultaneously occurring, multiple threats over generations is still elusive. In a long-term experimental study, we therefore exposed clones of a freshwater cladoceran, Daphnia magna, to threats from predation and ultraviolet radiation (UVR) during three consecutive parthenogenetic generations. We show that Daphnia can adapt to different sets of threats within three generations through modifying morphology, swimming behavior, or life-history traits. When faced with predator cues, D. magna responded with reduced body size, whereas exposure to UVR induced behavioral tolerance when again exposed to this threat. Such UVR-tolerant behavior was initially associated with a reduced clutch size, but Daphnia restored the reproductive output gradually through generations. The findings advance our understanding on how those common invertebrates, with a global distribution, are able to persist and rapidly become successful in a changing environment.</p>}},
  author       = {{Sha, Yongcui and Tesson, Sylvie V.M. and Hansson, Lars Anders}},
  issn         = {{0012-9658}},
  keywords     = {{adaptation; Daphnia magna; multiple threats; predation; transgenerational plasticity; ultraviolet radiation}},
  language     = {{eng}},
  number       = {{11}},
  publisher    = {{Ecological Society of America}},
  series       = {{Ecology}},
  title        = {{Diverging responses to threats across generations in zooplankton}},
  url          = {{https://lup.lub.lu.se/search/files/88150862/1.Sha_et_al._2020.pdf}},
  doi          = {{10.1002/ecy.3145}},
  volume       = {{101}},
  year         = {{2020}},
}