Females of the subsocial shield bug Parastrachia japonensis Scott progressively provision nymph-containing nests with drupes of the single host tree Schoepfia jasminodora Sieb. et Zull. The resource is unreliable and typically poor, and females invest considerable time in searching for suitable drupes. Earlier observations have indicated that although some females nest under the host tree, most prefer to nest far from the food source, despite the difficulty involved in transporting drupes to a distant nest. Because we have observed females stealing drupes from other females’ nests, we considered that kleptoparasitism might be a factor in determining nest site preference. A manipulated field study was carried out to clarify the prevalence of kleptoparasitism in nests close to and far from the host tree and to determine how these factors affect nest success. Surprisingly, in the year of this study, when drupes were particularly scarce, more drupes were stolen, but females still collected significantly more drupes and had greater nest success, in nests located under the host tree than in those that were 5 m away. The ecological factors relevant to kleptoparasitism and nest site choice are discussed.
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. 98 • No. 1