|   | 
Details
   web
Records
Author (up) Eccard, J.A.; Scheffler, I.; Franke, S.; Hoffmann, J.; Leather, S.; Stewart, A.
Title Off-grid: solar powered LED illumination impacts epigeal arthropods Type Journal Article
Year 2018 Publication Insect Conservation and Diversity Abbreviated Journal Insect Conserv Divers
Volume 11 Issue 6 Pages 600-607
Keywords Animals; Ecology
Abstract Advances in LED technology combined with solar, storable energy bring light to places remote from electricity grids. Worldwide more than 1.3 billion of people are living off‐grid, often in developing regions of high insect biodiversity. In developed countries, dark refuges for wildlife are threatened by ornamental garden lights. Solar powered LEDs (SPLEDs) are cheaply available, dim, and often used to illuminate foot paths, but little is known on their effects on ground living (epigeal) arthropods.

We used off‐the‐shelf garden lamps with a single ‘white’ LED (colour temperature 7250 K) to experimentally investigate effects on attraction and nocturnal activity of ground beetles (Carabidae).

We found two disparate and species‐specific effects of SPLEDs. (i) Some nocturnal, phototactic species were not reducing activity under illumination and were strongly attracted to lamps (>20‐fold increase in captures compared to dark controls). Such species aggregate in lit areas and SPLEDs may become ecological traps, while the species is drawn from nearby, unlit assemblages. (ii) Other nocturnal species were reducing mobility and activity under illumination without being attracted to light, which may cause fitness reduction in lit areas.

Both reactions offer mechanistic explanations on how outdoor illumination can change population densities of specific predatory arthropods, which may have cascading effects on epigeal arthropod assemblages. The technology may thus increase the area of artificial light at night (ALAN) impacting insect biodiversity.

Measures are needed to mitigate effects, such as adjustment of light colour temperature and automated switch‐offs.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1752458X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number NC @ ehyde3 @ Serial 2085
Permanent link to this record
 

 
Author (up) Larsson, M.; Göthberg, A.; Milberg, P.
Title Night, light and flight: light attraction in Trichoptera Type Journal Article
Year 2020 Publication Insect Conservation and Diversity Abbreviated Journal Insect Conserv Divers
Volume 13 Issue 3 Pages 296-302
Keywords Animals; artificial light; biodiversity; insects; light attraction; Trichoptera
Abstract Artificial light is an important and necessary part of urban environments, but light can have substantial direct and indirect effects on populations of various organisms. Urban areas are often situated close to water and thus organisms dependent on water could be especially vulnerable. Trichoptera is one of the most abundant insect orders in freshwater, but its attraction to light has not been analysed in detail. We contrasted catches in light traps and passive traps at three locations in Sweden. The results showed that artificial light can affect Trichoptera populations. Attraction to light varied between Trichoptera species and females were more attracted than males. Day‐, evening‐ and especially night‐active species were all attracted to light. Light catches of day‐ and evening‐active Trichoptera could partly be a consequence of atypical flight activity, i.e. they are deceived to take flight when a lamp is lit during night. In all, artificial light can alter Trichoptera populations, sex ratios and species composition. This impact should be considered when erecting and managing light sources near waterways.
Address IFM Biology, Conservation Ecology Group, Linköping University, Linköping, Sweden; permi ( at ) ifm.liu.se
Corporate Author Thesis
Publisher Wiley Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1752-458X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 3391
Permanent link to this record
 

 
Author (up) van Geffen, K.G.; van Eck, E.; de Boer, R.A.; van Grunsven, R.H.A.; Salis, L.; Berendse, F.; Veenendaal, E.M.; Stewart, A.; Sait, S.
Title Artificial light at night inhibits mating in a Geometrid moth Type Journal Article
Year 2015 Publication Insect Conservation and Diversity Abbreviated Journal Insect Conserv Divers
Volume Issue Pages n/a-n/a
Keywords Animals
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1752458X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ christopher.kyba @ Serial 1107
Permanent link to this record