Zoology Volume 115 / 6 ( 2012 ) 345 – 416

EL

SEV

IER

Contents

Table of Contents also available via e-mail by free-of-charge ToC Alert Service.Register now: www.elsevier.com/locate/zool

Abstracted/Indexed inAgricultural Abstracts; BIOSIS database; Biological Abstracts; Chemical Abstracts Service (CAS); Current Contents - Agriculture, Biology& Environmental Sciences; Deep Sea Research & Oceanographic Abstracts; Ecological Abstracts; Elsevier BIOBASE/Current Awareness inBiological Sciences; MEDLINE; NISC - National Information Services Corporation; Referativnyi Zhurnal; Reference Update® of Institutefor Scientifi c Information (ISI); Research Alert; Science Citation Index; SciExpanded; SciSearch; VITIS; Zoological Records. Also covered in the abstract and citation database SciVerse Scopus®. Full text available on SciVerse ScienceDirect®.

Karl-Ritter-von-Frisch-Medal Winner on the Editorial Board of ZoologyThomas C.G. Bosch ___________________________________________________________________________ 345

Spatial learning and memory retention in the grey bamboo shark (Chiloscyllium griseum)Vera Schluessel and Horst Bleckmann ____________________________________________________________ 346

Feeding biomechanics and theoretical calculations of bite force in bull sharks (Carcharhinus leucas) during ontogenyMaria L. Habegger, Philip J. Motta, Daniel R. Huber and Mason N. Dean _________________________________ 354

Differential sensitivity of honey bees and bumble bees to a dietary insecticide (imidacloprid)James E. Cresswell, Christopher J. Page, Mehmet B. Uygun, Marie Holmbergh, Yueru Li, Jonathan G. Wheeler, Ian Laycock, Christopher J. Pook, Natalie Hempel de Ibarra, Nick Smirnoff and Charles R. Tyler ______________ 365

Factors affecting variation in the reproductive investment of female treefrogs, Hyla intermediaGiorgia Cadeddu and Sergio Castellano ___________________________________________________________ 372

At which surface roughness do claws cling? Investigations with larvae of the running water mayfl y Epeorus assimilis (Heptageniidae, Ephemeroptera)Petra Ditsche-Kuru, Wilhelm Barthlott and Jochen H.E. Koop _________________________________________ 379

Hollowing or cavitation during follicular lumen formation in the differentiating thyroid of grass snake Natrix natrix L. (Lepidosauria, Serpentes) embryos? An ultrastructural studyWeronika Rupik ______________________________________________________________________________ 389

Morphology matches mtDNA lineages in the southern smooth snake (Coronella girondica) from IberiaXavier Santos, Catarina Rato, Salvador Carranza, Miguel A. Carretero, Juan P. González de la Vega and Juan M. Pleguezuelos _____________________________________________________________________ 398

Sexual selection in a polygynous rodent (Ctenomys talarum): an analysis of fi ghting capacityFederico Becerra, Alejandra I. Echeverría, Alejandra Marcos, Adrià Casinos and Aldo I. Vassallo ______________ 405

Activity re-assignment and microclimate selection of free-living Arabian oryx: responses that could minimise the effects of climate change on homeostasis?Robyn S. Hetem, W. Maartin Strauss, Linda G. Fick, Shane K. Maloney, Leith C.R. Meyer, Mohammed Shobrak, Andrea Fuller and Duncan Mitchell ______________________________________________________________ 411

ISSN 0944-2006Volume 115, issue 6,

December 2012

6Volume 115

Volume 115 , issue 6 , December 2012 , ISSN 0944-2006 www.elsevier.com/locate/zool

Available online at

www.sciencedirect.com