Insect declines and their drivers have attracted considerable recent attention. Fireflies and glowworms are iconic insects whose conspicuous bioluminescent courtship displays carry unique cultural significance, giving them economic value as ecotourist attractions. Despite evidence of declines, a comprehensive review of the conservation status and threats facing the approximately 2000 firefly species worldwide is lacking. We conducted a survey of experts from diverse geographic regions to identify the most prominent perceived threats to firefly population and species persistence. Habitat loss, light pollution, and pesticide use were regarded as the most serious threats, although rankings differed substantially across regions. Our survey results accompany a comprehensive review of current evidence concerning the impact of these stressors on firefly populations. We also discuss risk factors likely to increase the vulnerability of certain species to particular threats. Finally, we highlight the need to establish monitoring programs to track long-term population trends for at-risk firefly taxa.

Carrion beetles of genus Thanatophilus (Leach, 1815) are an important group of necrophagous insects, with great potential for forensic entomology in temperate zones of Africa, America, Asia, and Europe. Developmental models for majority of Thanatophilus species remain unknown. In this study, we will provide new thermal summation models for all the developmental stages of Thanatophilus sinuatus (Fabricius, 1775), one of the most abundant and widespread species of the genus. The beetles were bred at seven different constant temperatures, and developmental time was measured for each developmental stage (egg, three larval instars, postfeeding stage, and pupa). Temperature–sex influence was tested, and thermal summation constants were calculated to be used for postmortem interval estimation during criminal investigations.

Introduction Published research studies in Central Europe have been mostly oriented toward occupational stress among schoolteachers. The aim of this study is to investigate the level of occupational stress in kindergarten teachers and to specify psychosocial risks associated with their work. Methods The study was conducted by using a Meister questionnaire and a Psychosocial risk questionnaire. The data collection was obtained from kindergarten teachers in 2017. The survey link with request was sent to participants via email. A total 287 questionnaires from 67 kindergarten schools were collected. Results 192 (66.9%) teachers perceived their work as mentally burdensome. Teachers who perceived their work as mentally non-burdening were more likely to report autonomy in their work (p=0.001), fair performance evaluation (p=0.010), sufficient family time (p=0.005), a health-protected workplace (p=0.000) and absence of violence and bullying (p=0.042). Teachers with a university degree perceiving work as mentally burdensome reported that their work was not adequately assessed (p=0.034). Teachers over 45 years of age with school practice of over 20 years reported injustice in evaluating work performance against younger colleagues (p=0.000). Conclusion Kindergarten teachers reported overloading, time pressure, and high responsibility, but considered their work interesting. However, changing the way teachers work in schools can reduce teacher resignation and improve teachers’ well-being.

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