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Related Concept Videos

Electrical Energy01:10

Electrical Energy

Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules. The...
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Low-Cost Automated Flight Intercept Trap for the Temporal Sub-Sampling of Flying Insects Attracted to Artificial Light at Night
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Low-Cost Automated Flight Intercept Trap for the Temporal Sub-Sampling of Flying Insects Attracted to Artificial Light at Night

Published on: December 29, 2021

Street lighting disturbs commuting bats.

Emma Louise Stone1, Gareth Jones, Stephen Harris

  • 1School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK. emma.stone@bristol.ac.uk

Current Biology : CB
|June 23, 2009
PubMed
Summary
This summary is machine-generated.

Artificial light pollution significantly disrupts bat commuting behavior. This study shows reduced activity and delayed movement in lesser horseshoe bats exposed to streetlight mimics, impacting their flight routes.

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Area of Science:

  • Ecology
  • Conservation Biology
  • Environmental Science

Background:

  • Anthropogenic disturbance, including light pollution, is a primary driver of global biodiversity loss.
  • Nocturnal species, such as bats, are particularly vulnerable to artificial light at night (ALAN), which can disrupt essential behaviors like foraging, reproduction, and communication.
  • Lesser horseshoe bats (Rhinolophus hipposideros) are a threatened species whose ecological interactions may be affected by increasing light pollution.

Purpose of the Study:

  • To investigate the direct impact of artificial light pollution on the commuting behavior of the threatened lesser horseshoe bat.
  • To provide experimental evidence of how artificial lighting affects bat activity patterns and route selection.

Main Methods:

  • An experimental setup using high-pressure sodium lights, simulating streetlight conditions, was installed along known bat commuting routes.
  • Bat activity and commuting behavior were monitored in the presence and absence of artificial lighting.
  • The study specifically assessed changes in activity onset and overall bat presence.

Main Results:

  • Artificial light pollution significantly reduced bat activity along commuting routes.
  • The onset of commuting behavior was observably delayed in the presence of artificial lighting.
  • No habituation to the light pollution was observed during the study period, indicating a persistent negative effect.

Conclusions:

  • Artificial light pollution poses a significant threat to the lesser horseshoe bat by negatively impacting their commuting behavior and potentially altering their use of flight corridors.
  • Conservation strategies must consider the detrimental effects of light pollution on nocturnal species and their habitat use.
  • Further research is needed to understand the long-term consequences and develop effective mitigation measures for light pollution affecting bat populations.