Effects of Human Disturbance on Breeding Least and Crested Auklets at St. Lawrence Island, Alaska
- 1 April 1990
- journal article
- research article
- Published by Oxford University Press (OUP) in The Auk
- Vol. 107 (2) , 342-350
- https://doi.org/10.2307/4087618
Abstract
We studied breeding success, chick growth, and diets of Least (Aethia pusilla) and Crested (A. cristatella) auklets on St. Lawrence Island, Alaska, in summer 1987. Least Auklets had higher breeding success on control plots (50-66%) than on disturbed plots (36%). Crested Auklets had a breeding success of 42% on disturbed plots. Predation by microtine rodents and weather accounted for most natural chick mortality. Least Auklet chicks grew at a maximum rate of 4.9 g/day, and Crested Auklet chicks at 12.8 g/day. Least Auklet chicks were fed mostly copepods (Neocalanus plumchrus), whereas Crested Auklet chicks were fed Thysanoessa euphausiids.This publication has 15 references indexed in Scilit:
- Colony Attendance and Population Monitoring of Least and Crested Auklets on St. Lawrence Island, AlaskaOrnithological Applications, 1990
- Annual, seasonal, and habitat-related variation in feeding habits of the arctic fox (Alopex lagopus) on St. Lawrence Island, Bering SeaCanadian Journal of Zoology, 1989
- Monitoring Ancient Murrelet Breeding PopulationsColonial Waterbirds, 1988
- Breeding Biology of Least Auklets on the Pribilof Islands, AlaskaOrnithological Applications, 1986
- Breeding Biology of the Xantus' MurreletOrnithological Applications, 1983
- Breeding Biology of Crested, Least, and Whiskered Auklets on Buldir Island, AlaskaOrnithological Applications, 1982
- Influence of Snow on Egg-Laying in AukletsThe Auk, 1975
- The Nesting of the Crested, Least, and Parakeet Auklets on St. Lawrence Island, AlaskaOrnithological Applications, 1969
- Feeding of the least, crested, and parakeet auklets around St. Lawrence Island, AlaskaCanadian Journal of Zoology, 1969
- A Graphical Method of Fitting Equations to Growth CurvesEcology, 1967