01592nas a2200205   4500008004100000022001400041245008500055210006900140260001600209300001400225490000700239520086400246653002201110653001801132653002401150653001901174100002101193700002401214856014801238       1997                        eng d  a0307-696200aThe energetic cost of calling in the variable field cricket, Gryllus lineaticeps0 aenergetic cost of calling in the variable field cricket Gryllus   cJan-09-1997  a286 - 2900 v223 a<p>Female preferences for conspicuous male calls have been documented in many groups. However, relatively few studies have examined the metabolic costs associated with the production of call types preferred by females. We measured the oxygen consumption of calling male Gryllus lineaticeps St&aring;l crickets using closed chamber respirometry. Calling song was recorded concurrently. The average increase in mass‐specific oxygen consumption during calling was 2.7 times basal rates of oxygen consumption, and calling males consumed approximately 1.2ml O2g‐lh‐1. Oxygen consumption increased with increasing chirp rate and pulse duration, but not with increasing chirp duration. Females of this species prefer higher chirp rates, thus some call types that increase the male&#39;s attractiveness to females require more metabolic energy to produce.</p>
10afemale preference10aField cricket10aGryllus lineaticeps10ametabolic cost1 aHoback, W. Wyatt1 aWagner, William, E.  uhttp://doi.wiley.com/10.1111/j.1365-3032.1997.tb01170.xhttps://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3032.1997.tb01170.x02583nas a2200277   4500008004100000022001300041245012600054210006900180260001600249300001400265490000700279520171500286653002002001653001902021653002502040653001202065653001302077653001802090653002202108653002102130653002102151653002102172100002302193700002302216856006602239       2011                        eng d  a0003347200aEffects of juvenile and adult condition on long-distance call components in the Jamaican field cricket, Gryllus assimilis0 aEffects of juvenile and adult condition on longdistance call com  cJan-01-2011  a135 - 1440 v813 a<p>Complex signals may arise through either content- or efficacy-based selection. Content-based signals are thought to evolve because of the information content they provide to the receiver. Such signals may function as multiple messages, each relaying different information or types of information. For example, some signals or signal components may indicate different aspects of condition, or condition at different life stages (quality signals), while others relay information on signaller location, or function in species recognition. Or they may act as redundant signals of overall condition, or as backup signals of the same aspect of condition. Efficacy-based signals are proposed to evolve because of the way in which they influence the production, transmission, reception or processing of the signal. We manipulated juvenile and adult condition in male Jamaican field crickets, Gryllus assimilis, to test whether changes in components of the male&rsquo;s long-distance acoustic mate attraction signal were consistent with content- or efficacy-based selection. Several call components exhibited condition-dependence, and may be under content-based selection. Interpulse duration, pulse rate and chirp duration appeared to honestly signal juvenile condition, while dominant frequency appeared to signal adult condition. Thus, these signal components appeared to be acting as multiple messages of quality. Pulse number, interchirp duration and chirp rate were highly stereotyped and probably function in species recognition. Call number increased with decreasing condition and was likely under efficacy-based selection. No call components appeared to have the potential to act as redundant signals.</p>
10aacoustic signal10acomplex signal10acondition-dependence10acontent10aefficacy10aField cricket10amultiple messages10amultiple signals10aredundant signal10asexual selection1 aWhattam, Emily, M.1 aBertram, Susan, M.  uhttp://linkinghub.elsevier.com/retrieve/pii/S000334721000393302042nas a2200205   4500008004100000022001400041245007700055210006900132260001600201300001400217490000800231520141900239653002701658653002001685653001801705653001801723653001501741100002501756856005501781       2014                        eng d  a0340-759400aSelective phonotaxis of female crickets under natural outdoor conditions0 aSelective phonotaxis of female crickets under natural outdoor co  cJan-03-2014  a239 - 2500 v2003 aAcoustic mate choice in insects has been extensively studied under laboratory conditions, using different behavioural paradigms. Ideally, however, mate choice designs should reflect natural conditions, including the physical properties of the transmission channel for the signal. Since little is known about the discrimination ability of females between male song variants under natural conditions, we performed phonotaxis experiments with female field crickets (Gryllus bimaculatus) outdoors, using two-choice decisions based on differences in carrier frequency, sound pressure level, and chirp rate. For all three song parameters, minimum differences necessary for a significant preference between two song models were considerably larger outdoors compared to laboratory conditions. A minimum amplitude difference of 5 dB was required for a significant choice in the field, compared to only 1–2 dB reported for lab-based experiments. Due to the tuned receiver system, differences in carrier frequency equal differences in perceived loudness, and the results on choice for differences in carrier frequency corroborate those in amplitude. Similarly, chirp rate differences of 50 chirps/min were required outdoors compared to only 20 chirps/min in the lab. For predictions about patterns of sexual selection, future studies need to consider the different outcomes of mate choice decisions in lab and field trials.10aacoustic communication10aDecision making10aFemale choice10aField cricket10aphonotaxis1 aHirtenlehner, Stefan  uhttp://link.springer.com/10.1007/s00359-014-0881-7