Habitat use, diet and breeding biology of tufted puffins (Fratercula cirrhata) were studied in Prince William Sound, Alaska, during summer 1995. On Seal Island, 112 puffin burrows (71% active) were located. Of 95 accessible burrows, 49% were typical earthen burrows, whereas the remainder were atypical for the species (e.g., under tree roots). Hatching success (≤79%), fledging success (≥82%), chick growth rates (17.7 g/day), asymptotic (600 g) and fledging (563 g) weights, meal sizes (14.2 g), meal delivery rates (5.32 meals/day), and daily rations (75.5 g/day) were all average or above-average for tufted puffins in Alaska. A total of 42 chick meals, comprising 125 individual prey were collected. Meals were composed of juvenile pollock (12.7% of total mass), herring (21.8%), prowfish (32.3%), salmonids (24.1%), and capelin, sandlance and squid (<5% each). Tufted puffin populations in Prince William Sound are relatively small, and may be limited by low densities of prey in the Sound, nest-site availability, and heavy rainfall.
|Publication Subtype||Journal Article|
|Title||Habitat use, diet and breeding biology of tufted puffins in Prince William Sound, Alaska|
|Series title||Northwestern Naturalist|
|Publisher||Society for Northwestern Vertebrate Biology|
|Contributing office(s)||Alaska Science Center|
|Other Geospatial||Prince William Sound|
|Google Analytic Metrics||Metrics page|