| Autor: |
Samuel Jansson, Mikkel Brydegaard, Liang Mei, Tianqi Li, Jim Larsson, Elin Malmqvist, Susanne Åkesson, Sune Svanberg |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Royal Society Open Science, Vol 10, Iss 5 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2054-5703 |
| DOI: |
10.1098/rsos.221557 |
| Popis: |
We have used a continuous-wave bi-static lidar system based on the Scheimpflug principle in measurements on flying insects above, and in the vicinity of, a small lake located in a forested area in Southern Sweden. The system, which operates on triangulation principles, has a high spatial resolution at close distance, followed by a subsequent decline in resolution further from the sensor, related to the compact system design with a separation of transmitter and receiver by only 0.81 m. Our study showed a strong increase in insect abundance especially at dusk, but also at dawn. Insect numbers decreased over water compared to over land, and larger insects were over-represented over water. Further, the average size of the insects increased at night compared to day time. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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