Mitigating avian collisions with power lines through illumination with ultraviolet light
Collisions with anthropogenic structures by long-distance migrants and threatened and endangered species are a growing global conservation concern. Increasing the visibility of these structures may reduce collisions but may only be accepted by local residents if it does not create a visual disturba...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Resilience Alliance
2022-12-01
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| Series: | Avian Conservation and Ecology |
| Subjects: | |
| Online Access: | https://www.ace-eco.org/vol17/iss2/art9/ |
| _version_ | 1797969473896972288 |
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| author | David M. Baasch Amanda M. Hegg James F. Dwyer Andrew J. Caven William E. Taddicken Catherine A. Worley Amanda H. Medaries Cody G. Wagner Phoebe G. Dunbar Nicole D. Mittman |
| author_facet | David M. Baasch Amanda M. Hegg James F. Dwyer Andrew J. Caven William E. Taddicken Catherine A. Worley Amanda H. Medaries Cody G. Wagner Phoebe G. Dunbar Nicole D. Mittman |
| author_sort | David M. Baasch |
| collection | DOAJ |
| description | Collisions with anthropogenic structures by long-distance migrants and threatened and endangered species are a growing global conservation concern. Increasing the visibility of these structures may reduce collisions but may only be accepted by local residents if it does not create a visual disturbance. Recent research has shown the potential for ultraviolet (UV) light, which is nearly imperceptible to humans, to mitigate avian collisions with anthropogenic structures. We tested the effectiveness of two UV (390–400 nm) Avian Collision Avoidance Systems (ACASs) at reducing collisions at two 260-m spans of marked power lines at the Iain Nicolson Audubon Center at Rowe Sanctuary, an important migratory bird stopover location in Nebraska. We used a randomized design and a tiered model selection approach employing generalized linear models and the Akaike Information Criterion to assess the effectiveness of ACASs considering environmental (e.g., precipitation) and detection probability (e.g., migration chronology) variables. We found focal (assessed power line) and distal (neighboring power line) ACAS status and environmental variables were important predictors of avian collisions. Our top model suggests that the focal ACAS illumination reduced collisions by 88%, collisions were more likely at moderate (10–16 km/h) compared to lower or higher wind speeds, and collision frequency decreased with precipitation occurrence. Our top model also indicates that the distal ACAS illumination reduced collisions by 39.4% at the focal power line when that ACAS was off, suggesting a positive “neighbor effect” of power line illumination. Although future applications of ACASs would benefit from additional study to check for potential negative effects (for example, collisions involving nocturnal foragers such as bats or caprimulgiform birds drawn to insects), we suggest that illuminating power lines, guy wires, towers, wind turbines, and other anthropogenic structures with UV illumination will likely lower collision risks for birds while increasing human acceptance of mitigation measures in urban areas. |
| first_indexed | 2024-04-11T03:02:48Z |
| format | Article |
| id | doaj.art-5b6fa8bc66614227b69c6a175ec6699a |
| institution | Directory Open Access Journal |
| issn | 1712-6568 |
| language | English |
| last_indexed | 2024-04-11T03:02:48Z |
| publishDate | 2022-12-01 |
| publisher | Resilience Alliance |
| record_format | Article |
| series | Avian Conservation and Ecology |
| spelling | doaj.art-5b6fa8bc66614227b69c6a175ec6699a2023-01-02T13:46:38ZengResilience AllianceAvian Conservation and Ecology1712-65682022-12-0117292217Mitigating avian collisions with power lines through illumination with ultraviolet lightDavid M. Baasch0Amanda M. Hegg1James F. Dwyer2Andrew J. Caven3William E. Taddicken4Catherine A. Worley5Amanda H. Medaries6Cody G. Wagner7Phoebe G. Dunbar8Nicole D. Mittman9Crane TrustIain Nicolson Audubon Center at Rowe Sanctuary, National Audubon SocietyEDM International, Inc.Crane TrustIain Nicolson Audubon Center at Rowe Sanctuary, National Audubon SocietyIain Nicolson Audubon Center at Rowe Sanctuary, National Audubon SocietyCrane TrustIain Nicolson Audubon Center at Rowe Sanctuary, National Audubon SocietyUniversity of Nebraska-KearneyUniversity of Nebraska-KearneyCollisions with anthropogenic structures by long-distance migrants and threatened and endangered species are a growing global conservation concern. Increasing the visibility of these structures may reduce collisions but may only be accepted by local residents if it does not create a visual disturbance. Recent research has shown the potential for ultraviolet (UV) light, which is nearly imperceptible to humans, to mitigate avian collisions with anthropogenic structures. We tested the effectiveness of two UV (390–400 nm) Avian Collision Avoidance Systems (ACASs) at reducing collisions at two 260-m spans of marked power lines at the Iain Nicolson Audubon Center at Rowe Sanctuary, an important migratory bird stopover location in Nebraska. We used a randomized design and a tiered model selection approach employing generalized linear models and the Akaike Information Criterion to assess the effectiveness of ACASs considering environmental (e.g., precipitation) and detection probability (e.g., migration chronology) variables. We found focal (assessed power line) and distal (neighboring power line) ACAS status and environmental variables were important predictors of avian collisions. Our top model suggests that the focal ACAS illumination reduced collisions by 88%, collisions were more likely at moderate (10–16 km/h) compared to lower or higher wind speeds, and collision frequency decreased with precipitation occurrence. Our top model also indicates that the distal ACAS illumination reduced collisions by 39.4% at the focal power line when that ACAS was off, suggesting a positive “neighbor effect” of power line illumination. Although future applications of ACASs would benefit from additional study to check for potential negative effects (for example, collisions involving nocturnal foragers such as bats or caprimulgiform birds drawn to insects), we suggest that illuminating power lines, guy wires, towers, wind turbines, and other anthropogenic structures with UV illumination will likely lower collision risks for birds while increasing human acceptance of mitigation measures in urban areas.https://www.ace-eco.org/vol17/iss2/art9/<span style="font-style: normal">antigone canadensis</span> acasavian collision avoidance system<span style="font-style: normal">branta canadensis</span> canada goosepower line markingnebraskaplatte riversandhill craneuv technology |
| spellingShingle | David M. Baasch Amanda M. Hegg James F. Dwyer Andrew J. Caven William E. Taddicken Catherine A. Worley Amanda H. Medaries Cody G. Wagner Phoebe G. Dunbar Nicole D. Mittman Mitigating avian collisions with power lines through illumination with ultraviolet light Avian Conservation and Ecology <span style="font-style: normal">antigone canadensis </span> acas avian collision avoidance system <span style="font-style: normal">branta canadensis </span> canada goose power line marking nebraska platte river sandhill crane uv technology |
| title | Mitigating avian collisions with power lines through illumination with ultraviolet light |
| title_full | Mitigating avian collisions with power lines through illumination with ultraviolet light |
| title_fullStr | Mitigating avian collisions with power lines through illumination with ultraviolet light |
| title_full_unstemmed | Mitigating avian collisions with power lines through illumination with ultraviolet light |
| title_short | Mitigating avian collisions with power lines through illumination with ultraviolet light |
| title_sort | mitigating avian collisions with power lines through illumination with ultraviolet light |
| topic | <span style="font-style: normal">antigone canadensis </span> acas avian collision avoidance system <span style="font-style: normal">branta canadensis </span> canada goose power line marking nebraska platte river sandhill crane uv technology |
| url | https://www.ace-eco.org/vol17/iss2/art9/ |
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