J. Necker results 6
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Tracking freshwater snail diversity: a historical and environmental study in sub-tropical South AfricaNARA Subscribed
Freshwater snails are integral to aquatic ecosystems, contributing to nutrient cycling and serving as bioindicators of environmental health. However, this group faces growing threats from human activities, habitat degradation, and invasive species. This study investigated the diversity, distribution, and abundance of freshwater snails in a sub-tropical South African region, comparing current populations with historical data fr...
Evaluating the ecological consequences of Tarebia granifera density on benthic diatom communities in South African river systemsNARA Subscribed
Invasive species pose a significant threat to global freshwater biodiversity. The invasive snail Tarebia granifera has been reported to exploit microphytobenthos and detritus, potentially exercising a greater feeding impact compared to other invertebrates. Despite its presence in several important conservation regions in the country, little information exists regarding the effects of T. granifera on South African ecosystems. T...
A stable isotope analysis of the dietary patterns of the aquatic apex predator, the African tigerfish ( Hydrocynus vittatus )NARA Subscribed
Stable isotope analyses, specifically δ 13 C and δ 15 N, are useful tools increasingly used to understand ecosystem function, food web structures, and consumer diets. Although the iconic tigerfish Hydrocynus vittatus is regarded as an apex predator in southern African freshwater systems, little information is available regarding their feeding behavior and how this may change with growth or differ between ecosystems, with most...
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