ARCTIC Measurements, Chick Meals and Breeding Distribution of Dovekies (Alle alle) in Northwest Greenland’
measurements between the sexes were not significantly different, but mean body weight of males (153.8 g) was significantly greater than that of females (147.2 g). Body weight was highly correlated with wing length and total length in males, but not in females. Food delivered to nestlings consisted p...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.7066 http://pubs.aina.ucalgary.ca/arctic/arctic34-3-241.pdf |
| Summary: | measurements between the sexes were not significantly different, but mean body weight of males (153.8 g) was significantly greater than that of females (147.2 g). Body weight was highly correlated with wing length and total length in males, but not in females. Food delivered to nestlings consisted primarily of copepods (Calanus hyperboreus and C. glacialis) and amphipods (Parathemisto libellula and Apherusa glacialis). Size of chick meals delivered by male and female parents did not differ significantly and average meal weight was 3.48 g (sd = 1.24, n = 204) with mean weight of meals increasing through the chick-rearing period. General information is presented on measurements of subadults, timing of breeding, feeding areas, population size and colony attendance, and predation and disturbance. The distribution of Dovekie colonies in the Thule District is reviewed and compared with earlier information. Key words: Dovekie, morphometrics, chick diet, seabirds, NW Greenland RÉSUMÉ: Ce rapport signale les resultats d’une etude des Dovekies (Alle alle L.) en saison de nids prts de Cape Atholl et de Siorapaluk dans le district de Thule, dans le nord-ouest du Groenland, au cours de juillet et aôut 1978. Les valeurs moyennes des mesures corporelles des oiseaux en saison des nids etaient les suivantes: longueur totale: 218.2 mm (N = 265), longueur d’aile: 122.9 mm (N = 266), longueur de la queue: 40.8 mm (N = 266) et poids: 150.5 g (N = 209). La plupart des mesures ne differaient pas de façon importante entre les sexes, mais le poids moyen des mâles (153.8 g) depassait de façon significative celui des femelles (147.2 9). II existait une haute correlatibn entre la longueur d’aile et la longueur totale chez les mâles, mais non chez les femelles. La nourriture fournie aux oisillons consistait surtout de |
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