Arca Vitae

Functional Nutrition for Feeders

Photoperiodism

&

Chronobiology

Artificial Light at Night

Brown Anole & Artificial Light at Night - Findings: Females exposed to artificial light at night grew approximately 1.8 times faster and males approximately 1.2 times faster. Females also produced eggs earlier. These outcomes show altered energy use and reproductive timing, not necessarily improved welfare.

Artificial light at night increases growth and reproductive output in Anolis lizards

DOI: 10.1098/rspb.2019.1682

DOI URL: https://doi.org/10.1098/rspb.2019.1682

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American Toad & Artificial Light at Night - Findings: Artificial night lighting shortened the larval period but reduced post-metamorphic juvenile growth by approximately 15%. Exposed juveniles also failed to display normal nocturnal retreat behavior.

Artificial light at night decreases metamorphic duration and juvenile growth in a widespread amphibian

DOI: 10.1098/rspb.2018.0367

DOI URL: https://doi.org/10.1098/rspb.2018.0367

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Cricket Clock Genes & Short Nighttime Light Exposure - Findings: A 30-minute nighttime light pulse at intensities between 2 and 40 lux changed expression of opsin, cryptochrome, and period-related genes.

Transcriptional Response of Circadian Clock Genes to an ‘Artificial Light at Night’ Pulse in the Cricket Gryllus bimaculatus

DOI: 10.3390/ijms231911358

DOI URL: https://doi.org/10.3390/ijms231911358

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Cricket Lifelong Exposure to Artificial Light at Night - Findings: Lifelong nighttime illumination disrupted and decoupled locomotor and calling rhythms. Different behavioral rhythms within the same cricket did not necessarily respond identically.

Lifelong exposure to artificial light at night impacts stridulation and locomotion activity patterns in the cricket Gryllus bimaculatus

DOI: 10.1098/rspb.2021.1626

DOI URL: https://doi.org/10.1098/rspb.2021.1626

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Mosquito Clock Genes, Activity & Reproduction - Findings: Extending the light period by 3.5 hours at 100-300 lux changed clock-gene expression and activity. Exposed females produced fewer and smaller eggs.

Artificial Light at Night Influences Clock-Gene Expression, Activity, and Fecundity in the Mosquito Culex pipiens f. molestus

DOI: 10.3390/su11226220

DOI URL: https://doi.org/10.3390/su11226220

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