caa a22 4500 465762360 CHVBK 20180323111902.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF02350274 doi (NATIONALLICENCE)springer-10.1007/BF02350274 Food stealing in cockroaches [Elektronische Daten] [Colette Rivault, Ann Cloarec] Relationships between food stealing and exploitation of main food sources were investigated in the German cockroach,Blattella germanica (L.) (Dictyoptera: Blattellidae). The occurrence of food stealing during food exploitation was associated with the course of depletion of the main food sources and not with spatial distribution or distance from shelter. Stolen pieces of food always appeared towards the end of exploitation of a food source. Their occurrence appeared to be a consequence of the exploitation of a food source rather than a specific strategy. The proportion of animals of different developmental stages observed with stolen pieces differed significantly from that in the general population. There were proportionally more males, females and large larvae and proportionally less small larvae with stolen pieces than on the main food source. These data suggest that stolen pieces appeared when competition for access to food increased, and that larger cockroaches (adults and larger larvae) were then dominant and benefited from monopolizing stolen pieces of food. Japan Ethological Society, 1990 Rivault Colette Laboratoire d'Ethologie, CNRS URA 373, Université de Rennes 1, Campus de Beaulieu, 35042, RENNES cedex, FRANCE aut Cloarec Ann Laboratoire d'Ethologie, CNRS URA 373, Université de Rennes 1, Campus de Beaulieu, 35042, RENNES cedex, FRANCE aut Journal of Ethology Springer-Verlag 8/2(1990-12-01), 53-59 0289-0771 8:2<53 1990 8 10164 https://doi.org/10.1007/BF02350274 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02350274 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rivault Colette Laboratoire d'Ethologie, CNRS URA 373, Université de Rennes 1, Campus de Beaulieu, 35042, RENNES cedex, FRANCE aut NATIONALLICENCE 700 1- Cloarec Ann Laboratoire d'Ethologie, CNRS URA 373, Université de Rennes 1, Campus de Beaulieu, 35042, RENNES cedex, FRANCE aut NATIONALLICENCE 773 0- Journal of Ethology Springer-Verlag 8/2(1990-12-01), 53-59 0289-0771 8:2<53 1990 8 10164 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer