Predation of the white‐lined sphinx moth (Hyles lineata) is dependent upon time of day but not human disturbance

Ecological Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 12, 2025

Abstract Human settlements and urbanisation are increasing globally, with more than half of the Earth's terrestrial surface being impacted by humans. This development has resulted in numerous anthropogenic stressors including nocturnal sensory pollution (i.e. light pollution), which is a key driver insect declines. Nocturnality hypothesized to reduce predation risk from visually‐guided diurnal predators. More all species, 80% Lepidoptera, estimated be nocturnal. Predation rates on insects likely result habitat, time day local predator composition. We investigated how plasticine moth replicas differed between urban rural sites, night day. Visually matching paper‐winged, clay‐bodied white‐lined sphinx moth, Hyles lineata , were placed natural area within city El Paso, Texas, remote Chihuahuan Desert minimal human disturbance. These checked during dawn dusk for 3 days. significantly lower at regardless location, composition sites. Insectivorous birds primary predators both locations, whereas represented primarily site mammals site. findings support hypothesis that predators, such as birds, exert higher pressures day, supports biodiversity, especially predaceous insects, affected urbanisation.

Language: Английский

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Noise pollution as a major disturbance of avian predation in Amsterdam

Wildlife Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Trophic interactions play a key role in maintaining ecological balance. In urban environments, avian predation has been demonstrated to be particularly important due its effects on community structure, pest control, and nutrient cycling. As humanity relies upon ecosystem services for sustenance, with 70% of the global population projected reside areas by 2050, understanding impact urbanization is becoming increasingly important. This study investigates impacts microclimates, shaped impervious surfaces green/blue infrastructure, human‐induced disturbances, areas, aim testing increased disturbance hypothesis. To assess rate, plasticine caterpillars were placed Quercus robur trees city Amsterdam period two months. The analyses evaluated artificial lighting at night, human density, heat island effect, surfaces, vegetation, noise pollution, water bodies rates. results indicated substantial increase during second month, which was likely caused an naïve fledglings or elevated ambient temperatures. Noise pollution identified as most frequent robust predictor predation, consistently leading reduction rates, possibly avoidance behavior. Other predictors exhibited temporal spatial variability. variables related initial suggesting that insectivorous birds prey higher illumination temperature. However, effect diminished subsequent potentially daylight hours heating effects. During all negative thereby supporting increasing These findings underscore complex relationship between factors emphasizing necessity mitigation efforts planning.

Language: Английский

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Blended-red lighting partially mitigates the cost of light pollution for arthropods

Oecologia, Journal Year: 2025, Volume and Issue: 207(1)

Published: Jan. 1, 2025

Abstract Light pollution disrupts the natural dark–light rhythmicity of world and alters spectral composition nocturnal sky, with far-reaching impacts on systems. While costs light are now documented across scales taxa, community-level mitigations for arthropods remain unclear. To test two mitigation strategies, we replaced all 32 streetlights in largest visitor center Grand Teton National Park (Wyoming, USA) to allow wireless control over each luminaries’ color brightness. We captured fewer arthropods, most Orders, blended-red compared white (3000 K). Interestingly, found an effect brightness color, suggesting that, overall, more were attracted by brighter, hues blended-red. Our findings provide valuable insights into artificial at night, likely one primary drivers global arthropod declines.

Language: Английский

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The Dangers of Growing Old: Adult Moths Face Higher Predation Pressures than Caterpillars in Hyles lineata

Insects, Journal Year: 2025, Volume and Issue: 16(4), P. 347 - 347

Published: March 27, 2025

Holometabolous insects display drastically different morphologies across life stages (i.e., larvae vs. adults). Morphological differences stages, such as sizes and coloration, likely result in differential survival, predators may find individuals of one stage more conspicuous and/or energetically profitable than another. Furthermore, prey conspicuousness vary temporally because both the sensory environment predator abilities differ between day night. Here, we investigated how interaction (caterpillar moth) time (day night) influences predation white-lined sphinx (Lepidoptera: Hyles lineata). We predicted that caterpillars would be less susceptible to adult moths, adults are larger have a shape. After quantifying for 72 h during dawn dusk using 199 plasticine replicas each caterpillars, on was twice caterpillar replicas. were six times predated Lastly, attacks made mainly by birds, which carried out 86% models 85% those models. These data support hypothesis rates holometabolous insects. This research lays foundation further investigation into specific morphology affect survival

Language: Английский

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Perceptions of Personal Lighting Devices and Associated Behaviors: Shifting Personal Norms and Behavior for Broader Conservation Actions

Sustainability, Journal Year: 2024, Volume and Issue: 16(5), P. 1871 - 1871

Published: Feb. 24, 2024

Anthropogenic light impacts both wildlife and human well-being, national parks are some of the only remaining large swaths land where natural dark skies remain. Over past two decades, a significant amount science has contributed to our understanding these engineering advances reduce negative lighting effects. This resulted in changes infrastructure parks, growth Dark Sky Certification for many protected areas globally. To date, changing infrastructure, such as street parking lot lighting, less intrusive hues intensities or removing lights altogether have been sustainable made areas. study issues by examining park visitors’ perceptions personal use (e.g., headlamps). Specifically, this explores camper mountaineer devices their impact on social ecological systems Grand Teton National Park, USA. During peak visitation summer 2023, 17 interviews 16 general took place at night. Results indicate that campers mountaineers largely unaware anthropogenic humans. However, once informed, they willing change behaviors more wildlife-friendly with amber red settings (which, just emerging available consumers several companies). These results provide insights developing educational strategies designs will ultimately lead normative shifts capable reducing beyond.

Language: Английский

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Current evidence in support of insect-friendly lighting practices

Current Opinion in Insect Science, Journal Year: 2024, Volume and Issue: unknown, P. 101276 - 101276

Published: Sept. 1, 2024

Language: Английский

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Sensory pollution by artificial light: Implications for ecology and evolution

Basic and Applied Ecology, Journal Year: 2024, Volume and Issue: 78, P. 39 - 40

Published: April 24, 2024

Language: Английский

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