Translator Disclaimer
1 September 2005 ARE BROODING SALAMANDERS ABLE TO DIFFERENTIATE THE DEVELOPMENTAL STATUS OF THEIR EGGS?
Author Affiliations +
Abstract

We conducted behavioral trials to determine if egg preference by female northern dusky salamanders (Desmognathus fuscus) is influenced by the developmental age of their eggs. Within 72 h of oviposition, we divided 41 clutches in half and monitored the time the female spent with each of the genetically similar half-clutches. We then reared the eggs for 21 days in darkness under two temperature regimes (13 and 23 C) to produce a developmentally advanced and delayed half-clutch for each female. Initially, females divided their time almost equally between half-clutches. After thermal manipulation of embryo development, females spent the majority of their time with the developmentally advanced half-clutch. Of the 25 respondents included in the second trial, 21 spent >60%, and 15 spent more than 80% of their time in the presence of developed eggs. We hypothesize that females assess the developmental status of their eggs in order to optimize the tradeoff between the costs and benefits of parental care.

Don C. Forester, Courtney L. Anders, Anita M. Struzinski, and Joel W. Snodgrass "ARE BROODING SALAMANDERS ABLE TO DIFFERENTIATE THE DEVELOPMENTAL STATUS OF THEIR EGGS?," Herpetologica 61(3), 219-224, (1 September 2005). https://doi.org/10.1655/04-42.1
Accepted: 1 March 2005; Published: 1 September 2005
JOURNAL ARTICLE
6 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top