Javascript verkar inte påslaget? - Vissa delar av Lunds universitets webbplats fungerar inte optimalt utan javascript, kontrollera din webbläsares inställningar.
Du är här

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

Publiceringsår: 2001
Språk: Engelska
Sidor: 45-52
Publikation/Tidskrift/Serie: Alytes
Volym: 19
Nummer: 1
Dokumenttyp: Artikel i tidskrift
Förlag: ISSCA


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.


  • Biological Sciences


  • ISSN: 0753-4973

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen