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Analysis of Polyphenols in Water Primrose (Ludwigia hexapetala) Plants from the Sacramento-San Joaquin Delta of California Analysis of Polyphenols in Water Primrose (Ludwigia hexapetala) Plants from the Sacramento-San Joaquin Delta of California
Water primrose (Ludwigia hexapetala) is an invasive aquatic plant that has rapidly increased in coverage throughout the Sacramento-San Joaquin Delta. Water primrose has invaded wetlands and may contribute towards mortality of tules (Schoenoplectus spp.) and cattails (Typha spp.). Little research has been completed on the mechanisms responsible for marsh loss, but previous studies have...
Rasters of Observed Aufeis Deposits Within Rivers of the 1002 Area Based on Historical Landsat Imagery, 1985-2022 Rasters of Observed Aufeis Deposits Within Rivers of the 1002 Area Based on Historical Landsat Imagery, 1985-2022
These data comprise 505 unique geospatial raster datasets which describe persistent river ice (aufeis) occurrence within floodplains of select rivers and creeks in the 1002 Area of the Arctic National Wildlife Refuge in northern Alaska. Each raster is derived from a historical observation made by one of five Landsat satellites. Surface reflectance in the green and shortwave infrared...
Distribution and Breeding Status of Least Bell's Vireo along the San Diego and Tijuana Rivers in San Diego County, California (2023) Distribution and Breeding Status of Least Bell's Vireo along the San Diego and Tijuana Rivers in San Diego County, California (2023)
The spatial data results of USGS surveys for Least Bell's Vireo (Vireo bellii pusillus, LBVI) along the Tijuana River and San Diego River in 2023 to determine abundance and distribution of vireos to facilitate population trend analyses and collect information on dispersal and site fidelity of banded vireos as part of long-term demographic studies at multiple sites.
Data from an annual trapping effort of an urban aquatic turtle population in Lafayette, Louisiana from 2009-2021 (ver. 2.0, July 2024) Data from an annual trapping effort of an urban aquatic turtle population in Lafayette, Louisiana from 2009-2021 (ver. 2.0, July 2024)
This dataset includes results from an ongoing annual trapping effort targeting aquatic turtles at two urban ponds in Lafayette, Louisiana. This project began in 2009 and consists of five days of active and passive trapping each May. This project is ongoing with plans to continue in May of 2025.
Feeding Habits and Ecological Implications of the Invasive Flathead Catfish, Pylodictis olivaris, in the Susquehanna River Basin, Pennsylvania Feeding Habits and Ecological Implications of the Invasive Flathead Catfish, Pylodictis olivaris, in the Susquehanna River Basin, Pennsylvania
Flathead Catfish _Pylodictis olivaris_ are a prominent aquatic invasive species within the United States and a recent invader in the Susquehanna River Basin, Pennsylvania. Flathead Catfish are piscivores known to consume native and recreationally important fish species. In the northeastern United States, it is unknown how this invader is impacting food webs and which species may be at...
Kelp and Sea Urchin Data Obtained by SCUBA at Shallow Nearshore Sites along the North Pacific Rim from Bering Island to Southeast Alaska Obtained over Multiple Decades Beginning in 1987 Kelp and Sea Urchin Data Obtained by SCUBA at Shallow Nearshore Sites along the North Pacific Rim from Bering Island to Southeast Alaska Obtained over Multiple Decades Beginning in 1987
Between 1987 and 2021, over 600 nearshore rocky bottom sites were sampled by scuba at 38 locations on the north Pacific Rim ranging from Bering Island, along the Aleutian Island chain and the Alaska Peninsula to southeast Alaska. Sites were plotted at random from along the coasts of islands or areas designated. Hard substrate was targeted. Most sites were sampled more than once, years or...