There will be winners and losers among the flora and fauna. Desiccation will mean that moist habitats such as wet softwood riparian forests, foxtail grass meadows and yellow water-lily will have difficulty along large parts of the river. River pondweed, for example, benefits from climate change, just like the swallowtail and bee-eater.
It goes without saying that fish will suffer from the drying-up of secondary waters, but decreased currents, increased temperatures and changes in oxygen levels can also cause problems. The burbot, bullhead and dace are known to have difficulty with tolerating high water temperatures in the summer. Amphibians such as great crested newts, natterjack toads and moor frogs can partly adapt because the larvae can develop more quickly, but they run into problems if their breeding waters dry up too early in the spring. Birds can suffer if their breeding or foraging area become less suitable.
In general, non-native species from all species groups have a competitive advantage because they can usually withstand higher temperatures and adapt to changing conditions better.