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Daphnia magna trade-off safety from UV radiation for food

Lee, Marcus LU orcid and Hansson, Lars Anders LU orcid (2021) In Ecology and Evolution 11(24). p.18026-18031
Abstract

Research on diel vertical migration (DVM) is generally conducted at the population level, whereas few studies have focused on how individual animals behaviorally respond to threats when also having access to foraging opportunities. We utilized a 3D tracking platform to record the swimming behavior of Daphnia magna exposed to ultraviolet radiation (UVR) in the presence or absence of a food patch. We analyzed the vertical position of individuals before and during UVR exposure and found that the presence of food reduced the average swimming depth during both sections of the trial. Since UVR is a strong driver of zooplankton behavior, our results highlight that biotic factors, such as food patches, have profound effects on both the... (More)

Research on diel vertical migration (DVM) is generally conducted at the population level, whereas few studies have focused on how individual animals behaviorally respond to threats when also having access to foraging opportunities. We utilized a 3D tracking platform to record the swimming behavior of Daphnia magna exposed to ultraviolet radiation (UVR) in the presence or absence of a food patch. We analyzed the vertical position of individuals before and during UVR exposure and found that the presence of food reduced the average swimming depth during both sections of the trial. Since UVR is a strong driver of zooplankton behavior, our results highlight that biotic factors, such as food patches, have profound effects on both the amplitude and the frequency of avoidance behavior. In a broader context, the trade-off between threats and food adds to our understanding of the strength and variance of behavioral responses to threats, including DVM.

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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
in
Ecology and Evolution
volume
11
issue
24
pages
6 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:85119834507
  • pmid:35003654
ISSN
2045-7758
DOI
10.1002/ece3.8399
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.
id
66b8479b-72aa-4c3b-a1ec-a2359f8b71a1
date added to LUP
2022-01-25 13:04:09
date last changed
2024-07-29 04:57:43
@article{66b8479b-72aa-4c3b-a1ec-a2359f8b71a1,
  abstract     = {{<p>Research on diel vertical migration (DVM) is generally conducted at the population level, whereas few studies have focused on how individual animals behaviorally respond to threats when also having access to foraging opportunities. We utilized a 3D tracking platform to record the swimming behavior of Daphnia magna exposed to ultraviolet radiation (UVR) in the presence or absence of a food patch. We analyzed the vertical position of individuals before and during UVR exposure and found that the presence of food reduced the average swimming depth during both sections of the trial. Since UVR is a strong driver of zooplankton behavior, our results highlight that biotic factors, such as food patches, have profound effects on both the amplitude and the frequency of avoidance behavior. In a broader context, the trade-off between threats and food adds to our understanding of the strength and variance of behavioral responses to threats, including DVM.</p>}},
  author       = {{Lee, Marcus and Hansson, Lars Anders}},
  issn         = {{2045-7758}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{24}},
  pages        = {{18026--18031}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Ecology and Evolution}},
  title        = {{Daphnia magna trade-off safety from UV radiation for food}},
  url          = {{http://dx.doi.org/10.1002/ece3.8399}},
  doi          = {{10.1002/ece3.8399}},
  volume       = {{11}},
  year         = {{2021}},
}