Effectiveness of canine‐assisted surveillance and human searches for early detection of invasive spotted lanternfly
Abstract Prevention and early detection of invasive species are championed as the most cost‐effective and efficient strategies for reducing or preventing negative impacts on ecosystems. Spotted lanternfly (SLF), Lycorma delicatula, is a recently introduced invasive insect whose range in the United S...
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| Format: | Article |
| Language: | English |
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Wiley
2024-12-01
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| Series: | Ecosphere |
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| Online Access: | https://doi.org/10.1002/ecs2.70113 |
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| author | Angela K. Fuller Ben C. Augustine Eric H. Clifton Ann E. Hajek Arden Blumenthal Josh Beese Aimee Hurt Carrie J. Brown‐Lima |
| author_facet | Angela K. Fuller Ben C. Augustine Eric H. Clifton Ann E. Hajek Arden Blumenthal Josh Beese Aimee Hurt Carrie J. Brown‐Lima |
| author_sort | Angela K. Fuller |
| collection | DOAJ |
| description | Abstract Prevention and early detection of invasive species are championed as the most cost‐effective and efficient strategies for reducing or preventing negative impacts on ecosystems. Spotted lanternfly (SLF), Lycorma delicatula, is a recently introduced invasive insect whose range in the United States has been expanding rapidly since it was first discovered in Pennsylvania in 2014. Feeding by this planthopper can cause severe impacts on agricultural production, particularly grapes (Vitis spp.). Human visual surveys are the most common search method employed for detection but can be ineffective due to the insect's cryptic egg masses and low density during early stages of infestation. Therefore, finding alternative early detection methods has become a priority for agencies tasked with addressing SLF management. This study experimentally tested whether trained detector dogs could improve the probability of detecting SLF in both agricultural and forest settings. We surveyed transects in 20 vineyards and their adjacent wooded areas in Pennsylvania and New Jersey, USA, and used a multiscale occupancy model to estimate detection probability achieved by human observers and detection dogs as a function of SLF infestation level, weather, and habitat covariates. We modeled transect‐level occupancy of SLF as a function of infestation level, habitat type, topographic position index, and distance to forests. Occupancy probability of SLF was higher on vines within vineyards than in forests, and occupancy declined with increasing distance from forests, which is informative for future search efforts. Detection probability of SLF was lower at forested sites but was higher at high infestation sites. Detection dogs had a lower detection probability than humans in the vineyards, but the detection probability of dogs was >3× greater than that of humans in forested sites. Our study suggests that detection dogs are more effective than human visual searches as an early detection method for SLF in forested areas, and utilizing detector dogs could strengthen SLF early detection efforts. This study demonstrates the potential applicability of using canine‐assisted search strategies combined with occupancy models to enhance the surveillance and prevention of other difficult‐to‐detect invasive species. |
| format | Article |
| id | doaj-art-64c51fce0769494eb5ce270e0d48f436 |
| institution | Kabale University |
| issn | 2150-8925 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecosphere |
| spelling | doaj-art-64c51fce0769494eb5ce270e0d48f4362025-01-27T14:51:34ZengWileyEcosphere2150-89252024-12-011512n/an/a10.1002/ecs2.70113Effectiveness of canine‐assisted surveillance and human searches for early detection of invasive spotted lanternflyAngela K. Fuller0Ben C. Augustine1Eric H. Clifton2Ann E. Hajek3Arden Blumenthal4Josh Beese5Aimee Hurt6Carrie J. Brown‐Lima7U.S. Geological Survey, New York Cooperative Fish and Wildlife Research Unit, Department of Natural Resources and the Environment Cornell University Ithaca New York USANew York Cooperative Fish and Wildlife Research Unit, Department of Natural Resources and the Environment Cornell University Ithaca New York USADepartment of Entomology Cornell University Ithaca New York USADepartment of Entomology Cornell University Ithaca New York USANew York‐New Jersey Trail Conference, Conservation Dogs Program Mahwah New Jersey USANew York‐New Jersey Trail Conference, Conservation Dogs Program Mahwah New Jersey USAWorking Dogs for Conservation Missoula Montana USANew York Invasive Species Research Institute, Cornell University Ithaca New York USAAbstract Prevention and early detection of invasive species are championed as the most cost‐effective and efficient strategies for reducing or preventing negative impacts on ecosystems. Spotted lanternfly (SLF), Lycorma delicatula, is a recently introduced invasive insect whose range in the United States has been expanding rapidly since it was first discovered in Pennsylvania in 2014. Feeding by this planthopper can cause severe impacts on agricultural production, particularly grapes (Vitis spp.). Human visual surveys are the most common search method employed for detection but can be ineffective due to the insect's cryptic egg masses and low density during early stages of infestation. Therefore, finding alternative early detection methods has become a priority for agencies tasked with addressing SLF management. This study experimentally tested whether trained detector dogs could improve the probability of detecting SLF in both agricultural and forest settings. We surveyed transects in 20 vineyards and their adjacent wooded areas in Pennsylvania and New Jersey, USA, and used a multiscale occupancy model to estimate detection probability achieved by human observers and detection dogs as a function of SLF infestation level, weather, and habitat covariates. We modeled transect‐level occupancy of SLF as a function of infestation level, habitat type, topographic position index, and distance to forests. Occupancy probability of SLF was higher on vines within vineyards than in forests, and occupancy declined with increasing distance from forests, which is informative for future search efforts. Detection probability of SLF was lower at forested sites but was higher at high infestation sites. Detection dogs had a lower detection probability than humans in the vineyards, but the detection probability of dogs was >3× greater than that of humans in forested sites. Our study suggests that detection dogs are more effective than human visual searches as an early detection method for SLF in forested areas, and utilizing detector dogs could strengthen SLF early detection efforts. This study demonstrates the potential applicability of using canine‐assisted search strategies combined with occupancy models to enhance the surveillance and prevention of other difficult‐to‐detect invasive species.https://doi.org/10.1002/ecs2.70113detection dogearly detectioninvasive speciesLycorma delicatulaoccupancyspotted lanternfly |
| spellingShingle | Angela K. Fuller Ben C. Augustine Eric H. Clifton Ann E. Hajek Arden Blumenthal Josh Beese Aimee Hurt Carrie J. Brown‐Lima Effectiveness of canine‐assisted surveillance and human searches for early detection of invasive spotted lanternfly Ecosphere detection dog early detection invasive species Lycorma delicatula occupancy spotted lanternfly |
| title | Effectiveness of canine‐assisted surveillance and human searches for early detection of invasive spotted lanternfly |
| title_full | Effectiveness of canine‐assisted surveillance and human searches for early detection of invasive spotted lanternfly |
| title_fullStr | Effectiveness of canine‐assisted surveillance and human searches for early detection of invasive spotted lanternfly |
| title_full_unstemmed | Effectiveness of canine‐assisted surveillance and human searches for early detection of invasive spotted lanternfly |
| title_short | Effectiveness of canine‐assisted surveillance and human searches for early detection of invasive spotted lanternfly |
| title_sort | effectiveness of canine assisted surveillance and human searches for early detection of invasive spotted lanternfly |
| topic | detection dog early detection invasive species Lycorma delicatula occupancy spotted lanternfly |
| url | https://doi.org/10.1002/ecs2.70113 |
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