01261nas a2200157   4500008004100000022001300041245006800054210006400122260001600186300001400202490000700216520077200223100002200995700002001017856006601037       1992                        eng d  a0003347200aThe quantitative genetics of sound production in Gryllus firmus0 aquantitative genetics of sound production in Gryllus firmus  cJan-11-1992  a823 - 8320 v443 a<p>The species-specific calling songs of male cricket are used by females for species recognition and mate choice. Heritability of variation of morphological structures involved in song production, components of the calling song, and body size were estimated for the cricket Gryllus firmus. The heritabilities of morphological structures range from 0&middot;42 to 0&middot;73, while those of the song components range from 0&middot;10 to 0&middot;35. Comparison between sire and dam components suggests that there may be non-additive and/or maternal effects. As a result of the low correlation between body size and song components, it is unlikely that female G. firmus use the calling song to assess male body size or wing morph (micropterous or macropterous).</p>
1 aWebb, Karen, Lynn1 aRoff, Derek, A.  uhttp://linkinghub.elsevier.com/retrieve/pii/S000334720580578001289nas a2200157   4500008004100000022001300041245014200054210006900196260001600265300001600281490000700297520072100304100002301025700001701048856006601065       1992                        eng d  a0003347200aVariability in call structure and pairing success of male field crickets, Gryllus bimaculatus: the effects of age, size and parasite load0 aVariability in call structure and pairing success of male field   cJan-12-1992  a1145 - 11520 v443 a<p>The effects of male body size, age and gregarine parasite load on the structure of calls and success at attracting mates were investigated in a natural population of the field cricket, Gryllus bimaculatus. The syllable rate within chirps was negatively related to male size, and the duration of syllables was positively related to size. Older males had more variable syllable rates within their chirps. Size did not influence pairing success. However, paired males were significantly older than solitary calling males. Parasitic infection influenced the pairing success of young males but not old males. These data are discussed in the context of direct and indirect selection for female mating preferences.</p>
1 aSimmons, Leigh, W.1 aZuk, Marlene  uhttp://linkinghub.elsevier.com/retrieve/pii/S0003347205803264