Journal
CANADIAN JOURNAL OF ZOOLOGY
Volume 99, Issue 8, Pages 653-657Publisher
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/cjz-2020-0254
Keywords
Alcidae; Atlantic Puffin; egg volume; Fratercula arctica; general additive models; seabirds; western North Atlantic
Categories
Funding
- Environment and Climate Change Canada
- Atlantic Cooperative Wildlife Ecology Research Network
- Natural Sciences and Engineering Research Council of Canada
- New Brunswick Wildlife Trust Fund
- Northern Scientific Training Program of Crown-Indigenous Relations
- Northern Affairs Canada
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The study revealed that Atlantic Puffin egg volume varies regionally in the western North Atlantic, but has remained unchanged temporally since at least the 1980s.
In the eastern North Atlantic, declines in the volume of Atlantic Puffin (Fratercula arctica (Linnaeus, 1758)) eggs have been associated with shifts in the marine ecosystem, such as changes in the abundance of forage fishes and increasing sea-surface temperatures. In the western North Atlantic, where similar shifts in oceanographic conditions and changes in the abundance of forage fishes have presumably occurred, trends in the volume of Atlantic Puffin eggs remain unknown. In this study, we investigate Atlantic Puffin egg volume in the western North Atlantic. We compiled 140 years (1877-2016) of egg volume measurements (n = 1805) and used general additive mixed-effects models to investigate temporal trends and regional variation. Our findings indicate that Atlantic Puffin egg volume differs regionally but has remained unchanged temporally in the western North Atlantic since at least the 1980s.
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