caa a22 4500 465781977 CHVBK 20180323111957.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF00170897 doi (NATIONALLICENCE)springer-10.1007/BF00170897 Simmons L. Department of Environmental and Evolutionary Biology, University of Liverpool, P.O. Box 147, L69 3BX, Liverpool, UK aut Post-copulatory guarding, female choice and the levels of gregarine infections in the field cricket, Gryllus bimaculatus [Elektronische Daten] [L. Simmons] Summary: A recent model in sexual selection has proposed a role for parasites in maintaining heritable fitness variation. Females are envisaged as benefitting from preferentially mating with males that show resistance to infection. The post-copulatory guarding behaviour characteristic of many species of field cricket, has been envisaged as a means by which females assess male health and vigour. This hypothesis was tested in a field cricket, G. bimaculatus, which harbours a protozoan gut parasite. In enclosed arena trials, no direct correlations between female behaviours and levels of infection in males were found. However, there were significant correlations between the intensity of male guarding and the number of parasites found in the gut; infected males guarded more intensely in order to maintain contact with the female. In a second experiment simulating open field conditions, females left heavily parasitized males sooner than mildly or uninfected individuals. These data are discussed in relation to female choice for male health and vigour. Springer-Verlag, 1990 Behavioral Ecology and Sociobiology Springer-Verlag 26/6(1990-06-01), 403-407 0340-5443 26:6<403 1990 26 265 https://doi.org/10.1007/BF00170897 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00170897 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Simmons L. Department of Environmental and Evolutionary Biology, University of Liverpool, P.O. Box 147, L69 3BX, Liverpool, UK aut NATIONALLICENCE 773 0- Behavioral Ecology and Sociobiology Springer-Verlag 26/6(1990-06-01), 403-407 0340-5443 26:6<403 1990 26 265 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer