We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Hourly Laying Patterns of the Pearly-eyed Thrasher (Margarops fuscatus) in Puerto Rico.
- Authors
Arendt, Wayne J.
- Abstract
Temporal aspects of egg deposition are important factors governing avian reproductive success. I report hourly egg-laying patterns of the Pearly-eyed Thrasher (Margarops fuscatus) in the Luquillo Experimental Forest in northeastern Puerto Rico during 1979-2000. Initiatory eggs were laid by early morning (median = 0642 hrs, AST) and almost half of the eggs were laid by 0723 hrs. Many penultimate and eggs completing a clutch, however, were laid later in the morning and some not until mid afternoon (1429 hrs), thus extending egg deposition to 8 hrs. Delayed laying of the last eggs in a clutch may be an adaptive strategy triggering brood reduction to ensure survival of older and more robust siblings during periods of physiological stress and food shortages.
- Subjects
PUERTO Rico; PEARLY-eyed thrasher; ANTILLEAN thrashers; BIRDS; VERTEBRATES
- Publication
Wilson Journal of Ornithology, 2011, Vol 123, Issue 3, p624
- ISSN
1559-4491
- Publication type
Article
- DOI
10.1676/07-051.1