Skip to main content
Advanced Search

Filters: Tags: Weevil (X)

2 results (9ms)   

View Results as: JSON ATOM CSV
thumbnail
Climatic extremes are becoming more frequent with climate change and have the potential to cause major ecological shifts and ecosystem collapse. With the ecosystem collapse these normally healthy marshes fragment and convert to open water. Along the northern Gulf of Mexico, a coastal wetland in the San Bernard National Wildlife Refuge in Texas suffered significant and acute vegetation dieback following Hurricane Harvey in 2017. Using Uncrewed Aerial Systems (UAS) we acquired high resolution imagery to identify plant types that may correlate with elevation levels. Most plant species will fall into the succulents, graminoids, and Spartina alterniflora marsh types. These degraded marsh areas are classified into 5 categories:...
thumbnail
During summer months, coastal Louisiana is plagued with floating aquatics that fill and block canals and small waterways causing trouble for boaters. This floating aquatic starts growing in the spring and dies off in late summer and early winter months. One natural predator of the Salvinia sp is the weevil that forages on the Salvinia and causes premature die-off. These weevils do exist naturally in the ecosystem, but this study will introduce the weevil to these salvinia sp aquatics in the early growing season in hopes of reducing the amount and thickness of these salvinia biomass. Thru the use of UAV's (Unmanned aerial vehicles), high resolution imagery will be acquired and classified to monitor the effect...


    map background search result map search result map Salvinia/weevil case study: Using drones to monitor weevil propagation in Salvinia aquatics (ver. 2.0, August 2023) San Bernard National Wildlife Refuge Texas: Using drone acquired 2019 imagery to classify sudden dieback vegetation in Coastal TX wetlands San Bernard National Wildlife Refuge Texas: Using drone acquired 2019 imagery to classify sudden dieback vegetation in Coastal TX wetlands Salvinia/weevil case study: Using drones to monitor weevil propagation in Salvinia aquatics (ver. 2.0, August 2023)