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Pre-hatching exposure to water mold reduces size at metamorphosis in the moor frog

Uller, Tobias LU ; Sagvik, Jörgen and Olsson, Mats (2009) In Oecologia 160(1). p.9-14
Abstract
Developmental plasticity is increasingly recognized as important for ecological and evolutionary processes. However, few studies consider the potential for delayed effects of early environments. Here, we show that tadpoles hatching from clutches exposed to water mold (Saprolegnia) have 20% decreased mass at metamorphosis, despite no further exposure subsequent to hatching. The effects were consistent across four populations that have previously been shown to vary in their resistance to infection during embryonic development. Contrary to expectations, time to hatching or metamorphosis was not affected, suggesting that the results do not reflect an evolved escape strategy from infected waters triggered by embryonic conditions. Instead,... (More)
Developmental plasticity is increasingly recognized as important for ecological and evolutionary processes. However, few studies consider the potential for delayed effects of early environments. Here, we show that tadpoles hatching from clutches exposed to water mold (Saprolegnia) have 20% decreased mass at metamorphosis, despite no further exposure subsequent to hatching. The effects were consistent across four populations that have previously been shown to vary in their resistance to infection during embryonic development. Contrary to expectations, time to hatching or metamorphosis was not affected, suggesting that the results do not reflect an evolved escape strategy from infected waters triggered by embryonic conditions. Instead, decreased mass at metamorphosis may arise from carry-over effects of impaired embryo development. Such strong links across developmental stages have potential consequences for the evolution of plasticity and the responses of populations to emergent infections. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Oecologia
volume
160
issue
1
pages
9 - 14
publisher
Springer
external identifiers
  • scopus:64749112464
ISSN
1432-1939
DOI
10.1007/s00442-009-1280-6
language
English
LU publication?
no
id
880560b5-a24f-4e69-aa9c-734d3a41d4b0 (old id 4739119)
date added to LUP
2014-11-11 09:12:52
date last changed
2017-06-25 03:50:36
@article{880560b5-a24f-4e69-aa9c-734d3a41d4b0,
  abstract     = {Developmental plasticity is increasingly recognized as important for ecological and evolutionary processes. However, few studies consider the potential for delayed effects of early environments. Here, we show that tadpoles hatching from clutches exposed to water mold (Saprolegnia) have 20% decreased mass at metamorphosis, despite no further exposure subsequent to hatching. The effects were consistent across four populations that have previously been shown to vary in their resistance to infection during embryonic development. Contrary to expectations, time to hatching or metamorphosis was not affected, suggesting that the results do not reflect an evolved escape strategy from infected waters triggered by embryonic conditions. Instead, decreased mass at metamorphosis may arise from carry-over effects of impaired embryo development. Such strong links across developmental stages have potential consequences for the evolution of plasticity and the responses of populations to emergent infections.},
  author       = {Uller, Tobias and Sagvik, Jörgen and Olsson, Mats},
  issn         = {1432-1939},
  language     = {eng},
  number       = {1},
  pages        = {9--14},
  publisher    = {Springer},
  series       = {Oecologia},
  title        = {Pre-hatching exposure to water mold reduces size at metamorphosis in the moor frog},
  url          = {http://dx.doi.org/10.1007/s00442-009-1280-6},
  volume       = {160},
  year         = {2009},
}