IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Influence of growth rate retardation on time budgets and energetics of Arctic tern Sterna paradisaea and common tern S. hirundo chicks
Klaassen, M.; Habekotté, B.; Schinkelshoek, P.; Stienen, E.W.M.; Van Tienen, P. (1994). Influence of growth rate retardation on time budgets and energetics of Arctic tern Sterna paradisaea and common tern S. hirundo chicks. Ibis 136: 197-204
In: Ibis. British Ornithologists' Union/Wiley: London. ISSN 0019-1019, more
Peer reviewed article  

Available in Authors 

Keyword
    Marine

Authors  Top 
  • Klaassen, M.
  • Habekotté, B.
  • Schinkelshoek, P.
  • Stienen, E.W.M., more
  • Van Tienen, P.

Abstract
    Time budgets of free-living chicks of Arctic Terns Sterna paradisaea and Common Terns S. hirundo throughout development are presented with special reference to changes in time allocation when growth rate varies. Chicks of both species were inactive most of the time observed (87%). Time allocated to the different behaviours changed during development and was generally better correlated with body mass than age. Slower growing nestlings were brooded more and allocated more time to quiescence and less time to locomotion, preening, begging and attacking (the latter two significant only for the Arctic Tern). The energetic implications of variation in time budgets with age and growth rate were considered. Parental brooding resulted in an average energy saving of nearly 40% of an individual nestling's thermoregulatory costs. Whereas thermoregulatory costs remained nearly unchanged in Arctic Tern chicks, these were negatively correlated with growth rate in Common Terns. Tentatively, we estimated a 30% reduction in a nestling's total energy requirement for a 50% reduction in average growth rate for both species.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors