Tyck till om SwePub Sök
här!
Sökning: LAR1:lu
> Linnéuniversitetet
> (2007)
> Hansson Lars Anders >
Escape from UV thre...
Escape from UV threats in zooplankton: A cocktail of behavior and protective pigmentation
-
- Hansson, Lars-Anders (författare)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science
-
- Hylander, Samuel (författare)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,MPEA ; Zooplankton Ecology
-
- Sommaruga, Ruben (författare)
- University of Innsbruck
-
(creator_code:org_t)
- Wiley, 2007
- 2007
- Engelska.
-
Ingår i: Ecology. - : Wiley. - 0012-9658 .- 1939-9170. ; 88:8, s. 1932-1939
- Relaterad länk:
-
http://dx.doi.org/10...
-
visa fler...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- In order to avoid environmental threats, organisms may respond by altering behavior or phenotype. Using experiments performed in high-latitude Siberia and in temperate Sweden, we show for the first time that, among freshwater crustacean zooplankton, the defense against threats from ultraviolet radiation (UV) is a system where phenotypic plasticity and behavioral escape mechanisms function as complementary traits. Freshwater copepods relied mainly on accumulating protective pigments when exposed to UV radiation, but Daphnia showed strong behavioral responses. Pigment levels for both Daphnia and copepods were generally higher at higher latitudes, mirroring different UV threat levels. When released from the UV threat, Daphnia rapidly reduced (within 10 days) their UV protecting pigmentation-by as much as 40%-suggesting a cost in maintaining UV protective pigmentation. The. evolutionary advantage of protective pigments is, likely, the ability to utilize the whole water column during daytime; conversely, since the amount of algal food is generally higher in surface waters, unpigmented individuals are restricted to a less preferred feeding habitat in deeper waters. Our main conclusion is that different zooplankton taxa, and similar taxa at different latitudes, use different mixes of behavior and pigments to respond to UV radiation.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- ultraviolet
- trait compensation
- pigment
- phenotypic plasticity
- acid
- mycosporine-like amino
- limnology
- lakes
- Daphnia
- carotenoid
- copepod
- radiation
- UV radiation
- zooplankton
- Aquatic Ecology
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
-
Ecology
(Sök värdpublikationen i LIBRIS)
Till lärosätets databas