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Local variation in Rana termporaria egg and clutch size: Adaptations to pond drying?

Loman, Jon LU (2001) In Alytes 19(1). p.45-52
Abstract
Egg and clutch size variation among populations of common frogs (Rana temporaria) were studied in 14 ponds in Sweden. Also two secondary indices, clutch mass and allocation tactics (egg size3/clutch size) were studied. For all four characters there was a pond-wise correlation between the values across the two study years. All characters differed among ponds and all but allocation tactics differed between years. At least part of this variation must be environmental. The ponds were classified as permanent or temporary. The latter dried completely in some years, killing all tadpoles. Pond type affected all characters except egg size. Thus, clutches in shallow ponds were smaller, lighter and, correcting for clutch mass, had larger eggs (from... (More)
Egg and clutch size variation among populations of common frogs (Rana temporaria) were studied in 14 ponds in Sweden. Also two secondary indices, clutch mass and allocation tactics (egg size3/clutch size) were studied. For all four characters there was a pond-wise correlation between the values across the two study years. All characters differed among ponds and all but allocation tactics differed between years. At least part of this variation must be environmental. The ponds were classified as permanent or temporary. The latter dried completely in some years, killing all tadpoles. Pond type affected all characters except egg size. Thus, clutches in shallow ponds were smaller, lighter and, correcting for clutch mass, had larger eggs (from the allocation tactics index). I suggest that this variation may he adaptive. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Alytes
volume
19
issue
1
pages
45 - 52
publisher
ISSCA
ISSN
0753-4973
language
English
LU publication?
yes
id
7230635b-10bb-4280-9e17-85973f003fbf (old id 149319)
date added to LUP
2007-06-26 09:48:11
date last changed
2016-04-16 05:25:50
@article{7230635b-10bb-4280-9e17-85973f003fbf,
  abstract     = {Egg and clutch size variation among populations of common frogs (Rana temporaria) were studied in 14 ponds in Sweden. Also two secondary indices, clutch mass and allocation tactics (egg size3/clutch size) were studied. For all four characters there was a pond-wise correlation between the values across the two study years. All characters differed among ponds and all but allocation tactics differed between years. At least part of this variation must be environmental. The ponds were classified as permanent or temporary. The latter dried completely in some years, killing all tadpoles. Pond type affected all characters except egg size. Thus, clutches in shallow ponds were smaller, lighter and, correcting for clutch mass, had larger eggs (from the allocation tactics index). I suggest that this variation may he adaptive.},
  author       = {Loman, Jon},
  issn         = {0753-4973},
  language     = {eng},
  number       = {1},
  pages        = {45--52},
  publisher    = {ISSCA},
  series       = {Alytes},
  title        = {Local variation in Rana termporaria egg and clutch size: Adaptations to pond drying?},
  volume       = {19},
  year         = {2001},
}