02317nas a2200193   4500008004100000245011500041210006900156520166100225653001101886653002001897653001101917653001501928653001701943100002401960700002401984700002402008700002402032856006702056       2019                        eng d00aEffects of artificial light at night and male calling on movement patterns and mate location in field crickets0 aEffects of artificial light at night and male calling on movemen3 a<p>Anthropogenic factors, such as artificial light at night (ALAN), are increasingly linked to significant modifications in animal behaviours, such as foraging or migration. However, few studies have investigated directly whether the presence of ALAN affects the ability to find a mate (mate location). One direct effect of the presence of ALAN is that it can create a light barrier in an otherwise dark environment. This may have significant behavioural implications for nocturnally active species if it affects their ability to respond to potential mates. Our study, using the acoustically orienting Australian black field cricket, Teleogryllus commodus, determined experimentally whether the presence of a fragmented light environment influenced movement patterns of virgin females and males. Moreover, given the importance of male song for reproductive outcomes in this species, we assessed simultaneously whether such behaviours were modified by the presence of a male attraction call. We found that while initiation of movement was slower in the presence of ALAN, the behavioural shifts associated with its presence were relatively small compared to the influence of a broadcast male attraction call. The response to the male attraction call was typically stronger for females than for males, but both males and females modified aspects of behaviour when it was present regardless of whether their immediate environment was fragmented by artificial light at night or not. Artificial light at night may alter subtle aspects of movement and mating behaviour in this species, but ultimately does not provide a barrier to movement or mate location.</p>
10aInsect10alight pollution10amating10aphonotaxis10areproduction1 aThompson, Eliza, K.1 aCullinan, Naomi, L.1 aJones, Therésa, M.1 aHopkins, Gareth, R.  uhttps://linkinghub.elsevier.com/retrieve/pii/S000334721930348301980nas a2200229   4500008004100000022001300041245013000054210006900184260001600253300001400269490000800283520123200291653001801523653001701541653001201558653002001570653002701590100001901617700002401636700002401660856006601684       2017                        eng d  a0003347200aEffects of lifetime exposure to artificial light at night on cricket ( Teleogryllus commodus ) courtship and mating behaviour0 aEffects of lifetime exposure to artificial light at night on cri  cJan-07-2017  a181 - 1880 v1293 a<p>Increasing evidence suggests that key fitness-related behaviours of animals related to courtship and mating may be disrupted by anthropogenic stressors, including artificial light at night (i.e. light produced from anthropogenic sources). Despite its ubiquity in urban habitats, we currently know very little about how artificial night lighting affects the reproductive behaviours of most animals. Our study examined the effects of chronic (lifetime) exposure to one of four ecologically relevant intensities of artificial light at night (0, 1, 10 or 100 lx at night) on courtship and mating behaviours and acoustic sexual signalling in a common nocturnal and crepuscular insect, the Australian black field cricket, Teleogryllus commodus. We found that lifetime exposure to brighter (10e100 lx) artificial light at night affected some aspects of courtship and mating behaviour: it influenced mate choice and mating efficiency in a sex-specific manner, but did not affect the multivariate structure of male courtship calls. Our results suggest that chronic exposure to bright light at night may affect some aspects of mate choice and reproductive behaviour in this common insect, and warrants further study across taxa.</p>
10aanthropogenic10abioacoustics10ainsects10alight pollution10areproductive behaviour1 aBotha, Michael1 aJones, Therésa, M.1 aHopkins, Gareth, R.  uhttp://linkinghub.elsevier.com/retrieve/pii/S0003347217301574