Cyril Ruoso / Signal crayfish (Pacifastacus leniusculus), non-native invasive species, on riverbed in woodland. La Cure river, Morvan, Bourgogne-Franche-Comte, France. May.
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John Cancalosi / House sparrow (Passer domesticus) male flying from nest in Saguaro (Carnegiea gigantea) cactus. Non-native bird species that competes with native species for nesting cavities in cacti. Sonoran desert,...
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John Cancalosi / House sparrow (Passer domesticus) male at nest in Saguaro (Carnegiea gigantea) cactus cavity. Non-native bird species that competes with native species for nesting cavities in cacti. Sonoran desert, A...
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John Cancalosi / House sparrow (Passer domesticus) female feeding chicks at nest in Saguaro (Carnegiea gigantea) cactus. Non-native bird species that competes with native species for nesting cavities in cacti. Sonoran...
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Nick Upton / Japanese wireweed (Sargassum muticum), invasive non-native species in Atlantic Ocean. Cornwall, England, UK. September.
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Nick Upton / Japanese wireweed (Sargassum muticum), invasive non-native species in Atlantic Ocean. Cornwall, England, UK. September.
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Nick Upton / Japanese wireweed (Sargassum muticum), invasive non-native species in Atlantic Ocean. Cornwall, England, UK. September.
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Ashley Cooper / Dandelions (Taraxacum officiniale) growing on South Georgia in the Southern Ocean. A non native invasive plant species that has spread rapidly and isout competing native species. They arrived when Nor...
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Will Watson / Scientist measuring a crayfish head and thorax of a non-native Signal Crayfish (Pacifastacus leniusculus), River Lugg SSSI, north Herefordshire, England, UK, August.
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SCOTLAND: The Big Picture / Intensified land use with non-native conifer plantation fenced off from sheep pasture, Carrifran, Moffat, Dumfries and Galloway, Scotland, UK, June
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SCOTLAND: The Big Picture / Intensified land use with non-native conifer plantation fenced off from sheep pasture, Carrifran, Moffat, Dumfries and Galloway, Scotland, UK, June
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SCOTLAND: The Big Picture / Heather moorland scarred with patchwork burning neighboured by non-native tree plantation, Pitlochry, Perthshire, Scotland, UK, March