[Taxacom] Dimming lights to save bugs

Robert Zuparko rz at berkeley.edu
Thu Aug 6 11:21:54 CDT 2020


Interesting. I know that the city of Tucson has dimmed it's night lights,
both for costs purposes and to reduce light pollution (Kitt Peak houses an
observatory west of the town)

https://www.darksky.org/nights-over-tucson/

Perhaps this can act as a guide.

On Thu, Aug 6, 2020 at 4:54 AM John Grehan via Taxacom <
taxacom at mailman.nhm.ku.edu> wrote:

> This is not taxonomy but hopefully of general interest nevertheless. have
> heard comments over the years that lights have a detrimental impact on
> insect populations that are nocturnally active. Don't know if there are any
> studies on that, but was interested to see reference to action on this
> being considered in Germany which will also extend to insecticides (which I
> suspect directly impact human health as well as ecosystems)
>
> John Grehan
>
> Berlin (AFP) - Germany is planning to ban floodlights from dusk for much of
> the year as part of its bid to fight a dramatic decline in insect
> populations, it emerged Wednesday.
>
> In a draft law seen by AFP, the country's environment ministry has drawn up
> a number of new measures to protect insects, ranging from partially
> outlawing spotlights to increased protection of natural habitats.
>
> "Insects play an important role in the ecosystem...but in Germany, their
> numbers and their diversity has severely declined in recent years," reads
> the draft law, for which the ministry hopes to get cabinet approval by
> October.
>
> The changes put forward in the law include stricter controls on both
> lighting and the use of insecticides.
>
> Light traps for insects are to be banned outdoors, while searchlights and
> sky spotlights would be outlawed from dusk to dawn for ten months of the
> year.
>
>
> The draft also demands that any new streetlights and other outdoor lights
> be installed in such a way as to minimise the effect on plants, insects and
> other animals.
>
> The use of weed-killers and insecticides would also be banned in national
> parks and within five to ten metres of major bodies of water, while
> orchards and dry-stone walls are to be protected as natural habitats for
> insects.
>
> The proposed reforms are part of the German government's more general
> "insect protection action plan", which was announced last September under
> growing pressure from environmental and conservation activists.
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-- 
Robert Zuparko
Essig Museum of Entomology
1101 Valley Life Sciences Building, #4780
University of California
Berkeley, CA 94720-3112
(510) 643-0804


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