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Instantaneous threat escape and differentiated refuge demand among zooplankton taxa
Lund University.
Lund University.
Lund University.
Lund University.
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2016 (English)In: Ecology, ISSN 0012-9658, E-ISSN 1939-9170, Vol. 97, no 2, 279-285 p.Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

Most animals, including aquatic crustacean zooplankton, perform strong avoidance movements when exposed to a threat, such as ultraviolet radiation (UVR). We here show that the genera Daphnia and Bosmina instantly adjust their vertical position in the water in accordance with the present UVR threat, i.e., seek refuge in deeper waters, whereas other taxa show less response to the threat. Moreover, Daphnia repeatedly respond to UVR pulses, suggesting that they spend more energy on movement than more stationary taxa, for example, during days with fluctuating cloud cover, illustrating nonlethal effects in avoiding UVR threat. Accordingly, we also show that the taxa with the most contrasting behavioral responses differ considerably in photoprotection, suggesting different morphological and behavioral strategies in handling the UVR threat. In a broader context, our studies on individual and taxa specific responses to UVR provide insights into observed spatial and temporal distribution in natural ecosystems.

Place, publisher, year, edition, pages
2016. Vol. 97, no 2, 279-285 p.
Keyword [en]
Daphnia, migration, movement, Polyphemus, ultraviolet radiation, zooplankton, refuge, threat response
National Category
Ecology
Research subject
Ecology, Aquatic Ecology
Identifiers
URN: urn:nbn:se:lnu:diva-51592DOI: 10.1890/15-1014.1ISI: 000371439800001Scopus ID: 2-s2.0-84960935021OAI: oai:DiVA.org:lnu-51592DiVA: diva2:915391
Available from: 2016-03-30 Created: 2016-03-30 Last updated: 2016-11-28Bibliographically approved

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Hylander, Samuel
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf