1. Unconventional masking : even spectrally non-overlapping noise impairs insect vibrational communicationRok Janža, Nataša Stritih Peljhan, Aleš Škorjanc, Jernej Polajnar, Meta Virant-Doberlet, 2024, zaključena znanstvena zbirka raziskovalnih podatkov Povzetek: A dataset accompanying the publication Janža R. et al. (2024): Vibrational noise disrupts Nezara viridula communication, irrespective of spectral overlap. Communications Biology 7:1533, https://doi.org/10.1038/s42003-024-07185-3. Contains raw data (where appropriate) and data extracted from audio/video files, and custom code for processing in Matlab (*.m files) and R (*.rmd file)[.] Original audio and video recordings from which measurements were made are available on request from the authors.
Ključne besede: biotremology, vibrational noise, bed bugs, sexual behavior, data
Objavljeno v DiRROS: 27.10.2025; Ogledov: 200; Prenosov: 313
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2. Specificity of male responses to female vibratory signals in two Chinavia species (Hemiptera: Pentatomidae) is based on signal structure and narrow temporal parametersSamantha da Silveira, Aline Moreira Dias, Ana Carolina Gomes Lagoa, Maria Carolina Blassioli Moraes, Miguel Borges, Andrej Čokl, Raúl Alberto Laumann, 2019, izvirni znanstveni članek Povzetek: In this work, we tested whether variations in temporal pattern and architecture of the vibratory signals favor signals recognition and discrimination in two stinkbug species, Chinavia ubica and C. impicticornis. To relate the level of species recognition with species-specific vibratory signal we exposed males to natural or artificial signals. Different artificial signals were synthesized by changing the basic structure or temporal parameters of typical female calling signals of each species. Signals were transmitted to bean plants and the response of males was observed and recorded by a piezoelectric accelerometer. Results show that changes in temporal patterns of artificial signals significantly reduced the proportion of males responding by emitting the male song. Our results confirm that specific elements of male vibratory signals are critical for female signal recognition and discrimination by males and could contribute to prezygotic isolation in sympatric Chinavia species.
Ključne besede: neotropical stinkbugs, communication, sexual signals, reproductive behavior, signal architecture
Objavljeno v DiRROS: 12.03.2025; Ogledov: 554; Prenosov: 437
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3. Leafhopper males compensate for unclear directional cues in vibration-mediated mate localizationJernej Polajnar, Ana Kuhelj, Rok Janža, Nada Žnidaršič, Tatjana Simčič, Meta Virant-Doberlet, 2023, izvirni znanstveni članek Povzetek: Ambient noise and transmission properties of the substrate pose challenges in vibrational signal-mediated mating behavior of arthropods, because vibrational signal production is energetically demanding. We explored implications of these challenges in the leafhopper Aphrodes makarovi (Insecta: Hemiptera: Cicadellidae) by exposing males to various kinds of vibrational noise on a natural substrate and challenging them to find the source of the female playback. Contrary to expectations, males exposed to noise were at least as efficient as control males on account of similar searching success with less signaling effort, while playing back male–female duets allowed the males to switch to satellite behavior and locate the target without signaling, as expected. We found altered mitochondrial structure in males with high signaling effort that likely indicate early damaging processes at the cellular level in tymbal muscle, but no relation between biochemical markers of oxidative stress and signaling effort. Analysis of signal transmission revealed ambiguous amplitude gradients, which might explain relatively low searching success, but it also indicates the existence of behavioral adaptations to complex vibrational environments. We conclude that the observed searching tactic, emphasizing speed rather than thorough evaluation of directional cues, may compensate for unclear stimuli when the target is near.
Ključne besede: biotremology, vibrational communication, sexual behavior of insects, impact of noise on behavior, metabolism of vibrational production
Objavljeno v DiRROS: 12.07.2024; Ogledov: 957; Prenosov: 603
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