Palatability of Hemidactylium scutatum eggs was examined in a factorial experiment. Eggs of Hemidactylium and Desmognathus ocoee, which are known to be palatable, were offered to carabid beetle species collected from pond and stream habitats. Beetles collected from a pond habitat did not eat salamander eggs of either species, suggesting that they do not include salamander eggs in their diet regardless of palatablility. Beetles collected from a stream habitat punctured the same number of eggs of both species but consumed a much greater number of D. ocoee eggs. These results suggest that eggs of Hemidactylium contain a toxic or noxious chemical repellant in the jelly layer and may help to explain lack of nest defense and desertion in Hemidactylium and other caudate species.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 2000 • No. 2