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Growth and development of larval Rana temporaria: Local variation and countergradient selection

Loman, Jon LU (2003) In Journal of Herpetology 37(3). p.595-602
Abstract
I raised tadpoles of the Common Frog (Rana temporaria) from populations in eight source ponds in southern Sweden, in a common garden experiment at two densities. Tadpoles from different populations differed in development rate; those from source ponds with high tadpole densities developed faster than those from less crowded ponds. Thus, differences among ponds in tadpole performance, which were documented in previous field studies, must have a genetic or maternal component. This result of source pond crowding likely resulted from microevolution and is an example of countergradient selection. In contrast, I found no significant effect of source pond hydroperiod; tadpoles from temporary ponds grew and developed at a rate similar to those... (More)
I raised tadpoles of the Common Frog (Rana temporaria) from populations in eight source ponds in southern Sweden, in a common garden experiment at two densities. Tadpoles from different populations differed in development rate; those from source ponds with high tadpole densities developed faster than those from less crowded ponds. Thus, differences among ponds in tadpole performance, which were documented in previous field studies, must have a genetic or maternal component. This result of source pond crowding likely resulted from microevolution and is an example of countergradient selection. In contrast, I found no significant effect of source pond hydroperiod; tadpoles from temporary ponds grew and developed at a rate similar to those from permanent ponds. Tadpoles of R. temporaria can respond plastically to pond drying by increasing development rate. I suggest adaptive plasticity in development rate decreased selection by pond drying in natural ponds. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Herpetology
volume
37
issue
3
pages
595 - 602
publisher
Society for the Study of Amphibians and Reptiles
external identifiers
  • wos:000185905900024
  • scopus:0141573268
ISSN
0022-1511
language
English
LU publication?
yes
id
febfe28d-f688-42ac-82ed-b0ded38f9828 (old id 137170)
alternative location
http://www.bioone.org/bioone/?request=get-abstract&issn=0022-1511&volume=037&issue=03&page=0595
date added to LUP
2007-06-25 12:21:12
date last changed
2018-05-29 10:39:43
@article{febfe28d-f688-42ac-82ed-b0ded38f9828,
  abstract     = {I raised tadpoles of the Common Frog (Rana temporaria) from populations in eight source ponds in southern Sweden, in a common garden experiment at two densities. Tadpoles from different populations differed in development rate; those from source ponds with high tadpole densities developed faster than those from less crowded ponds. Thus, differences among ponds in tadpole performance, which were documented in previous field studies, must have a genetic or maternal component. This result of source pond crowding likely resulted from microevolution and is an example of countergradient selection. In contrast, I found no significant effect of source pond hydroperiod; tadpoles from temporary ponds grew and developed at a rate similar to those from permanent ponds. Tadpoles of R. temporaria can respond plastically to pond drying by increasing development rate. I suggest adaptive plasticity in development rate decreased selection by pond drying in natural ponds.},
  author       = {Loman, Jon},
  issn         = {0022-1511},
  language     = {eng},
  number       = {3},
  pages        = {595--602},
  publisher    = {Society for the Study of Amphibians and Reptiles},
  series       = {Journal of Herpetology},
  title        = {Growth and development of larval Rana temporaria: Local variation and countergradient selection},
  volume       = {37},
  year         = {2003},
}