| Autor: |
Fabusova M; Centre for Ecology & Conservation, University of Exeter, Penryn Campus, Penryn, TR10 9FE, UK., Gaston KJ; Environment and Sustainability Institute, University of Exeter, Penryn Campus, Penryn TR10 9FE, UK., Troscianko J; Centre for Ecology & Conservation, University of Exeter, Penryn Campus, Penryn, TR10 9FE, UK. |
| Jazyk: |
angličtina |
| Zdroj: |
Biology letters [Biol Lett] 2024 Nov; Vol. 20 (11), pp. 20240403. Date of Electronic Publication: 2024 Nov 13. |
| DOI: |
10.1098/rsbl.2024.0403 |
| Abstrakt: |
Vehicle headlights create pulsed artificial light at night (pALAN) that is unpredictable, intense and extends into previously dark areas. Nocturnal insects often have remarkable low-light vision, but their slow pupillary light responses may leave them vulnerable to pALAN, which has important ecological consequences. To test this, we exposed nocturnal moths-important pollinators and prey-to four pALAN treatments. These comprised 'cool' and 'warm' lights, either emitted from phosphor-coated light-emitting diodes (LEDs) or RGB (red-green-blue) LEDs, matched in colour (CCT) and intensity to human vision. We assessed the initial behavioural response, likely crucial to the survival of an organism, of 428 wild-caught moths comprising 64 species. We found that exposure to a cool phosphor-coated LED light pulse increased instances of erratic flight and flight-to-light that are likely detrimental as they increase the risks of impact with a vehicle, predation or excess energy expenditure. Our findings suggest that pALAN can cause a wide range of behavioural responses in nocturnal moths, but that the most harmful effects could be minimized by reversing the current shift towards high CCT (cool) phosphor-coated LED car headlights. Lower CCT or RGB alternatives are likely to provide benefits for road safety while reducing ecological harm. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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