We investigated the trophic ecology of three non-native crayfish species (the marbled crayfish Procambarus virginalis , the red swamp crayfish Procambarus clarkii and the spiny-cheek crayfish Faxonius limosus ) and two non-native fishes (the eastern mosquitofish Gambusia holbrooki and the three-spined stickleback Gasterosteus aculeatus ) from two sections of a thermal tributary of the Barát brook in Budapest (Hungary) over the...

We used biological and physical responses at 71 shallow waterbodies with contrasting nutrient levels undergoing recovery from eutrophication to predict potential changes in waterbird species abundance, an important component of lake ecosystems. These general predictions were tested using 28 years of breeding waterbird data from three Danish shallow eutrophic lakes, comparing species-specific responses to improved nutrient and...

Higher biomass especially of some aquatic macrophyte species offered a higher density of phytophilous zoobenthos, but did not increase the proportion of non‐planktonic to planktonic prey in young‐of‐the‐year perch Perca fluviatilis . Both abundance and biomass of non‐planktonic prey dominated over planktonic prey in the pond with lower biomass of aquatic macrophytes and lower food. Survival of P. fluviatilis was lower (20%) in...

In recent years, policy‐makers have sought the development of appropriate tools to prevent and manage introductions of invasive species. However, these tools are not well suited for introductions of non‐target species that are unknowingly released alongside intentionally‐introduced species. The most compelling example of such invasion is arguably the topmouth gudgeon Pseudorasbora parva, a small cyprinid species originating fr...

The performance of fifth generation offspring of a desert annual ( Dimorphotheca sinuata DC.) were compared in the absence of UV‐B, under variable atmospheric CO 2 and nutrient supply, after four consecutive generations of concurrent exposure of their progenitors to UV‐B at ambient (seasonal range: 2.55–8.85 kJ m –2 d –1 ) and enhanced (seasonal range: 4.70–11.41 kJ m –2 d –1 ) levels. Offspring of progenitors grown under elev...