Abstract
Bruinzeel, L., Tulp, I., Jukema, J. & Stepanova, O. 2000. Incubation in mi-parental arctic breeding waders. Ostrich 71 (1 & 2): 345. Little Stints Calidris minuta are amongst the smallest breeding waders. This, in combination with the fact that they have a peculiar breeding system, in which each adult takes care of her/his own nest and young, puts high demands during incubation. Due to uni-parental feeding system, feeding time is limited. The accumulation of he1 stores prior to breeding may be crucial to get through the 21-day incubation period. Incubation rhythms, body mass dynamics and energy expenditure of Little Stints was studied at Medusa Bay, Western Taimyr in the summer of 1996. Repeated body mass measurements during incubation were taken by catching the birds on the nest. Concurrently, we measured nest attentiveness, using Tiny Talk dataloggers and temperature sensitive probes, which were placed in the nests. Arthropod availability was measured to estimate food availability. In comparison, body mass dynamics were also studied in Curlew Sandpiper, another uni-parental breeder, but three times bigger. The first (preliminary) results of this study were presented.
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