http://www.brettseymoure.com/contact daily 0.75 2025-02-02 http://www.brettseymoure.com/home daily 1.0 2025-02-03 https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1539454742665-MMR8C3MUCRRIHFFZGM1C/IMG_2452.JPG Home http://www.brettseymoure.com/research daily 0.75 2025-02-14 http://www.brettseymoure.com/research-1 daily 0.75 2025-02-06 https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1444748604087-PUETUVAO93LTTGO4BPCB/IMG_0323.JPG Research https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1633030633049-0UX36WAXOD1ZIIW0L4YY/GLA+Figure+2+Apr+23+2021.jpg Research - Make it stand out Light levels vary over 9 orders of magnitude (a billion times!) from starlight conditions at night to bright sunlight in open habitats. During twilight, these light levels change drastically and this sudden change of light levels is a very important cue for many organisms. Furthermore, natural light levels at night can vary across 4 orders of magnitude depending on lunar phase and lunar altitude. Sidebar - it is tricky to measure such extreme light levels and that is one component of our lab’s research: how does one accurately, quickly (and hopefully without spending 100,000 USD) measure starlight when so much of radiometric equipment is designed for bright conditions such as daylight or electric lighting? https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1633031100576-N4P8KU70SXQ8XUYZKMPH/GLA+Figure+1+Apr+16+2021.jpg Research - Make it stand out Select biological effects on animals from changing light levels. Each wedge represents a light environment that ranges within an order of magnitude in lux, the numbers at the end of each spoke on the wheel. The right side shows organismal effects from changes in natural light level changes due to twilight and the lunar cycle. The left side shows organismal effects from artificial light level changes due to human lighting. The inner wedges represent the visual scene. For specifics on organisms and resources, check out our pub in Frontiers in Ecology and the Environment that was published in January 2025. https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/89c96f9d-0387-49ae-9ba6-135160e460cb/Spp+Interactions+Concept+Fig+3Jul2023.png Research - Make it stand out Most species interactions are due to shared temporal niches. These temporal niches are mostly defined by light levels and due to artificial light at night, species interactions may become altered. For example, top left - Dusk: crepuscular species such as bees may shift their activity and pollinate flowers later at night and/or earlier in the morning. Top right - Early night: many nocturnal species, such as bats and rodents, may remain inactive at night under the presence of ALAN. Bottom left - Night: nocturnal species may aggregate around artificial light sources at night owing to non-homogeneous lighting, such as bats and moths aggregating around artificial light. Bottom right - Dawn: diurnal predators may extend their foraging to earlier in the morning owing to the presence of ALAN and thus increase predation on insects as a result of an extended temporal niche. Click here for the pub: Seymoure et al 2023 Phil Trans. Figure created by our undergraduate alumna, Ashlee Portz. https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/4d39199c-e18e-462a-a4bc-27dce012c434/Graphical+Abstract+16JUN2023.png Research - Make it stand out Light sources come in numerous colors and intensities. We tested if plasticine-clay moths are likely to have greater attack rates dependent upon the wattage and color of nearby streetlights. We found, unsurprisingly, that cool LEDs (4500k) resulted in higher attack rates on moths at night whereas warmer HPS (3000k) resulted in fewer attacks. Very surprisingly, we found that control poles with no direct street lighting had similar attack rates as LEDs! This is likely due to the high amounts of urban light pollution that contain broad wavelengths of light. Check out our pub in Basic and Applied Ecology for details, click here. https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/9c1f6d30-f8e0-4dc7-962f-20ece706a3db/Fig+2.png Research - Make it stand out The white-lined sphinx moth! We currently use this beautiful and charismatic moth to test predation pressures across urban-rural gradients as well as under different light polluted environments. This figure demonstrates that our paper-winged model matches the coloration of an actual moth as measured by a UV-VIS camera. Thus, this model is very natural and enables for an accurate representation of predation pressures on sedentary, perched moths in the wild. https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/13082663-0a14-48e3-9872-b8776dc2369a/Insects+Light+Pollution+Figure.png Research - Make it stand out Both local, direct sources of artificial light (left) and diffuse skyglow… time to go to a party. I will finish this tomorrow :) http://www.brettseymoure.com/media-coverage daily 0.75 2024-10-10 https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1633034635840-QTQVLHMB7PGQRGNSL9YG/Screen+Shot+2021-09-30+at+3.13.19+PM.png Media Coverage BBC The argument for switching off lights at night. https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1633034771688-JAYDKV7ZB53UNWWFBZ8S/Screen+Shot+2021-09-30+at+3.13.54+PM.png Media Coverage THE SOURCE Brood X cicadas emerge in a rapidly changing world https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1633034894679-ZD63253PIGQQMC0O0WH5/Screen+Shot+2021-09-30+at+3.14.42+PM.png Media Coverage SCIENCE Can scientists help insects survive their fatal attraction to light at night? https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1633033439811-M0L3PCHDS0NEGNBD9WES/Screen+Shot+2021-09-30+at+3.15.25+PM.png Media Coverage SMITHSONIAN MAGAZINE Using amber-filtered bulbs instead of white light attracts fewer bugs. Smithsonian Magazine https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/1633034447010-F7OW7DHNJTZVL4HEJCXQ/Screen+Shot+2021-09-30+at+3.39.28+PM.png Media Coverage VICE NEWS HBO Clear, dark skies are disappearing, except in rural Idaho http://www.brettseymoure.com/people daily 0.75 2025-02-17 https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/e63ced7c-4366-4325-a2d2-115b5a72d412/IMG_7677.jpeg People https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/e2c1daaf-8261-49ed-8322-c365cfcd6840/Oceane+RT.jpg People https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/c4d1912c-2e49-4587-a39f-8f5dec749983/IMG_4085.jpeg People - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/b22a4f8a-2c14-45fa-8c89-00d73eb110fa/20230930_103220.jpg People https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/b25950e9-6e66-415a-8d08-2f625e9a271b/John+D+Photo.png People - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/3f0199e6-2ff9-47cd-a020-59693beb8721/IMG_7713.JPG People - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/561af295e4b0de0a924fe90b/f33908c3-f8b3-4784-9faa-210fe9038334/Entomolgy_Class_StarySky_Seymoure.png People - Make it stand out Whatever it is, the way you tell your story online can make all the difference.