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  • Metabolic rates (MRs) vary consistently among individuals within a population, providing raw material for natural selection. Although individual energy demands may play an increasingly important role for ectotherm survival under warmer and more variable winter conditions, whether individual variation in MRs persists during overwintering is virtually unknown. Here, we repeatedly measured MR in wintering Alpine newts Ichthyosaura alpestris to (1) confirm the consistent individual variation in this trait; (2) test whether the individual differences in MR affect body mass loss during overwintering. The individual identity of newts explained 72% of variation in mass-and-activity-corrected MR. Newts with a high MR lost a higher proportion of their initial body mass than individuals with lower metabolic demands. We conclude that the consistent individual variation in MR during overwintering is an important predictor of spring body condition in newts.
  • Metabolic rates (MRs) vary consistently among individuals within a population, providing raw material for natural selection. Although individual energy demands may play an increasingly important role for ectotherm survival under warmer and more variable winter conditions, whether individual variation in MRs persists during overwintering is virtually unknown. Here, we repeatedly measured MR in wintering Alpine newts Ichthyosaura alpestris to (1) confirm the consistent individual variation in this trait; (2) test whether the individual differences in MR affect body mass loss during overwintering. The individual identity of newts explained 72% of variation in mass-and-activity-corrected MR. Newts with a high MR lost a higher proportion of their initial body mass than individuals with lower metabolic demands. We conclude that the consistent individual variation in MR during overwintering is an important predictor of spring body condition in newts. (en)
Title
  • Individual variation in amphibian metabolic rates during overwintering: implications for a warming world
  • Individual variation in amphibian metabolic rates during overwintering: implications for a warming world (en)
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  • Individual variation in amphibian metabolic rates during overwintering: implications for a warming world
  • Individual variation in amphibian metabolic rates during overwintering: implications for a warming world (en)
skos:notation
  • RIV/00216224:14310/14:00077811!RIV15-MSM-14310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(GAP506/10/2170), S
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 21205
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/14:00077811
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • body condition; climate change; newt; repeatability; respirometry; Triturus (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [C00FBB76F26A]
http://linked.open...i/riv/nazevZdroje
  • Journal of Zoology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 294
http://linked.open...iv/tvurceVysledku
  • Gvoždík, Lumír
  • Kristín, Peter
http://linked.open...ain/vavai/riv/wos
  • 000342923000004
issn
  • 0952-8369
number of pages
http://bibframe.org/vocab/doi
  • 10.1111/jzo.12157
http://localhost/t...ganizacniJednotka
  • 14310
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