Provisioning mass by females of the maritime earwig, Anisolabis maritima, is not adjusted based on the number of young

Seizi Suzuki

Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan

Abstract

The amount of parental provisioning is thought to reflect the need of offspring. This hypothesis was tested in the case of provisioning food mass to young with controlled clutch size using the maritime earwig, Anisolabis maritima Bonelli (Dermaptera: Anisolabididae). The female provisioned a constant mass of food to the young irrespective of the number of nymphs and the distance of food carrying. In addition, the survival rate of young did not change with adjusted clutch size. This study showed that A. maritima females appear to provide food mass to their nymphs independent of their number.

Keywords: begging signal, maternal care, parent–offspring conflict

Correspondence: seizis@res.agr.hokudai.ac.jp

Received: 22 December 2010 | Accepted: 21 February 2011 | Published: 21 November 2011

ISSN: 1536-2442 | Volume 11, Number 160

Suzuki S. 2011. Provisioning mass by females of the maritime earwig, Anisolabis maritima, is not adjusted based on the number of young. Journal of Insect Science 11:160 available online: insectscience.org/11.160


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