Data from: Tracking twolined spittlebug, <i>Prosapia bicincta</i>, movement in upland pastures of Hawaiʻi
The twolined spittlebug, Prosapia bicincta (TLSB), is an invasive pasture pest on Hawai'i Island and causes extensive damage to rangelands. Despite a rapid spread, field-based estimates of adult TLSB movement remain limited. Here, we evaluate the feasibility of harmonic radar (HR) tracking to quantify short-term movement of adult TLSB in two upcountry pastures on Hawai’i Island. HR-tagged adults were released at two sites and tracked over ~24 h, achieving 95% recovery and observing a mean displacement of ~0.6 m (Experiment 1). Induced movements of tagged and untagged adults were recorded to assess potential tag effects; no statistical difference in movement distance was detected between treatments (Experiment 2). However, testing and environmental variability suggest this result should be interpreted cautiously. While tag effects on survival and behavior are not fully characterized, our results provide evidence consistent with limited short-term impacts under field conditions. Males moved farther than females in both experiments. Correlated random walk simulations based on observed movement parameters estimated that 95% of lifetime movements occur within ~8 m of the origin under the conditions tested. These findings demonstrate the feasibility of HR tracking for TLSB and provide baseline data to inform future studies on dispersal and management.
Resources
2 resources available
-
Experiment 1 - One-Day Field Dispersal of Tagged Adults.csv
CSV -
Experiment 2 - Repeated Induced Movements - Tagged vs Untagged.csv
CSV
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "005:18" ] |
| contactPoint |
{ "fn": "Siderhurst, Matthew, S.", "hasEmail": "mailto:matthew.siderhurst@usda.gov" } |
| description | <p dir="ltr">The twolined spittlebug, <i>Prosapia bicincta</i> (TLSB), is an invasive pasture pest on Hawai'i Island and causes extensive damage to rangelands. Despite a rapid spread, field-based estimates of adult TLSB movement remain limited. Here, we evaluate the feasibility of harmonic radar (HR) tracking to quantify short-term movement of adult TLSB<i> </i>in two upcountry pastures on Hawai’i Island. HR-tagged adults were released at two sites and tracked over ~24 h, achieving 95% recovery and observing a mean displacement of ~0.6 m (Experiment 1). Induced movements of tagged and untagged adults were recorded to assess potential tag effects; no statistical difference in movement distance was detected between treatments (Experiment 2). However, testing and environmental variability suggest this result should be interpreted cautiously. While tag effects on survival and behavior are not fully characterized, our results provide evidence consistent with limited short-term impacts under field conditions. Males moved farther than females in both experiments. Correlated random walk simulations based on observed movement parameters estimated that 95% of lifetime movements occur within ~8 m of the origin under the conditions tested. These findings demonstrate the feasibility of HR tracking for TLSB<i> </i>and provide baseline data to inform future studies on dispersal and management.</p> |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Experiment 1 - One-Day Field Dispersal of Tagged Adults.csv", "format": "csv", "mediaType": "text/csv", "downloadURL": "https://ndownloader.figshare.com/files/63058273" }, { "@type": "dcat:Distribution", "title": "Experiment 2 - Repeated Induced Movements - Tagged vs Untagged.csv", "format": "csv", "mediaType": "text/csv", "downloadURL": "https://ndownloader.figshare.com/files/63058276" } ] |
| identifier | 10.15482/USDA.ADC/31843897.v1 |
| keyword |
[ "Forage pest", "Harmonic radar", "Insect movement", "Invasive insect", "Rangeland management" ] |
| license | https://www.usa.gov/publicdomain/label/1.0/ |
| modified | 2026-03-30 |
| programCode |
[ "005:040" ] |
| publisher |
{ "name": "Agricultural Research Service", "@type": "org:Organization" } |
| temporal | 2025-09-15/2025-09-30 |
| title | Data from: Tracking twolined spittlebug, <i>Prosapia bicincta</i>, movement in upland pastures of Hawaiʻi |
