Title: Biotic and Abiotic factors governing nestling-period length in the ovenbird (Seiurus aurocapilla)
Author: Stodola, Eric; Buehler, David; Kim, Daniel; Franzreb, Kathleen; Linder, Daniel;
Source: The Auk 127(1):204-211
Publication Series: Scientific Journal (JRNL)
Description: In many songbirds, the nesting period for a breeding attempt is extremely short, often lasting only a few weeks. Breeding adults can shorten this period by decreasing the number of eggs laid or reducing the length of the nestling period. Nestling-period length has received little attention in the literature but could have profound effects on annual fecundity, because each day represents a risk of nest depredation. Consequently, we were interested in assessing the biotic and abiotic factor that govern the nestling period in the Ovenbird (Seiurus aurocapilla). We provide evidence that food availability, more than predation pressure and climatic factors, influences nestling-period length, with increases in food availability decreasing the nestling period. We suggest that the nestling period is dictated by physiological constraints, which may be influenced by food availability and, thus, the ability to provision young. However, the greatest variation in nestling period was individual variation among breeding pairs. Thus, we believe that large-scale variation in ecological and environmental factors may determine the physiological constraints of the nestling period but parental behavior and quality within this framework dictated the actual length of the nesting period.
Keywords: fecundity, fledging period, nest success, nesting period, Ovenbird, parental behavior, Seiurus aurocapilla
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
XML: View XML
Stodola, Kirk W.; Buehler, David A.,Kim; Daniel H.; Franzreb, Kathleen E.; Linder, Eric T. 2010. Biotic and Abiotic factors governing nestling-period length in the ovenbird (Seiurus aurocapilla). The Auk 127(1):204-211.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility