{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,9]],"date-time":"2025-12-09T11:39:41Z","timestamp":1765280381825,"version":"build-2065373602"},"reference-count":34,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2023,5,27]],"date-time":"2023-05-27T00:00:00Z","timestamp":1685145600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Hungarian National Research, Development and Innovation Office","award":["KDP-2020-ELTE-1010099","UNKP-21-4"],"award-info":[{"award-number":["KDP-2020-ELTE-1010099","UNKP-21-4"]}]},{"name":"Hungarian New National Excellence Program of the Ministry for Innovation and Technology","award":["KDP-2020-ELTE-1010099","UNKP-21-4"],"award-info":[{"award-number":["KDP-2020-ELTE-1010099","UNKP-21-4"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Aquatic insects detect water by the horizontal polarization of water-reflected light and thus are attracted to such light. Recently, in the Hungarian Lake Balaton we observed dark water patches forming between every autumn and spring because of the inflow of black suspended\/dissolved organic matter into the bright lake water. Earlier, the polarization characteristics of such water surfaces were mapped by imaging polarimeters from the ground. In order to measure the reflection-polarization patterns of these dark lake patches from the higher viewpoint of flying polarotactic aquatic insects, we designed a drone-based imaging polarimeter. We found that the dark lake patches reflected light with very high (60% \u2264 d \u2264 80%) degrees of horizontal polarization at the Brewster\u2019s angle, while the bright lake water was only weakly (d &lt; 20%) horizontally polarizing. There was a large contrast in both the radiance and degree of polarization between dark lake patches and bright lake water, while there was no such contrast in the angle of polarization. The ecological implication of these findings could be that these dark lake patches attract water-seeking polarotactic insects, which may oviposit more frequently in them than in the brighter lake water. However, it might not matter if they lay their eggs in these dark patches rather than the bright lake water, because this may simply increase the abundance of breeding flying insects in areas where dark patches are common.<\/jats:p>","DOI":"10.3390\/rs15112797","type":"journal-article","created":{"date-parts":[[2023,5,27]],"date-time":"2023-05-27T16:17:33Z","timestamp":1685204253000},"page":"2797","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Drone-Based Imaging Polarimetry of Dark Lake Patches from the Viewpoint of Flying Polarotactic Insects with Ecological Implication"],"prefix":"10.3390","volume":"15","author":[{"given":"D\u00e9nes","family":"Sz\u00e1z","sequence":"first","affiliation":[{"name":"Environmental Optics Laboratory, Department of Biological Physics, ELTE E\u00f6tv\u00f6s Lor\u00e1nd University, P\u00e1zm\u00e1ny S\u00e9t\u00e1ny 1, H-1117 Budapest, Hungary"}]},{"given":"P\u00e9ter","family":"Tak\u00e1cs","sequence":"additional","affiliation":[{"name":"Environmental Optics Laboratory, Department of Biological Physics, ELTE E\u00f6tv\u00f6s Lor\u00e1nd University, P\u00e1zm\u00e1ny S\u00e9t\u00e1ny 1, H-1117 Budapest, Hungary"},{"name":"Drem Innovation and Consulting Ltd., Szentendrei \u00fat 95, H-1033 Budapest, Hungary"}]},{"given":"Bal\u00e1zs","family":"Bern\u00e1th","sequence":"additional","affiliation":[{"name":"Environmental Optics Laboratory, Department of Biological Physics, ELTE E\u00f6tv\u00f6s Lor\u00e1nd University, P\u00e1zm\u00e1ny S\u00e9t\u00e1ny 1, H-1117 Budapest, Hungary"},{"name":"Drem Innovation and Consulting Ltd., Szentendrei \u00fat 95, H-1033 Budapest, Hungary"}]},{"given":"Gy\u00f6rgy","family":"Kriska","sequence":"additional","affiliation":[{"name":"Group for Methodology in Biology Teaching, Biological Institute, ELTE E\u00f6tv\u00f6s Lor\u00e1nd University, P\u00e1zm\u00e1ny S\u00e9t\u00e1ny 1, H-1117 Budapest, Hungary"},{"name":"Centre for Ecological Research, Institute of Aquatic Ecology, Karolina \u00fat 29-31, H-1113 Budapest, Hungary"}]},{"given":"Andr\u00e1s","family":"Barta","sequence":"additional","affiliation":[{"name":"Environmental Optics Laboratory, Department of Biological Physics, ELTE E\u00f6tv\u00f6s Lor\u00e1nd University, P\u00e1zm\u00e1ny S\u00e9t\u00e1ny 1, H-1117 Budapest, Hungary"},{"name":"Estrato Research and Development Ltd., N\u00e9metv\u00f6lgyi \u00fat 91\/c, H-1124 Budapest, Hungary"}]},{"given":"Istv\u00e1n","family":"Pomozi","sequence":"additional","affiliation":[{"name":"Environmental Optics Laboratory, Department of Biological Physics, ELTE E\u00f6tv\u00f6s Lor\u00e1nd University, P\u00e1zm\u00e1ny S\u00e9t\u00e1ny 1, H-1117 Budapest, Hungary"},{"name":"Drem Innovation and Consulting Ltd., Szentendrei \u00fat 95, H-1033 Budapest, Hungary"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9008-2411","authenticated-orcid":false,"given":"G\u00e1bor","family":"Horv\u00e1th","sequence":"additional","affiliation":[{"name":"Environmental Optics Laboratory, Department of Biological Physics, ELTE E\u00f6tv\u00f6s Lor\u00e1nd University, P\u00e1zm\u00e1ny S\u00e9t\u00e1ny 1, H-1117 Budapest, Hungary"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1007\/BF00605291","article-title":"A polarization-sensitive response of the flying water bugNotonecta glauca to UV light","volume":"150","author":"Schwind","year":"1983","journal-title":"J. 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