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Harlequin ladybird (Harmonia axyridis) larvae still with a raft of empty egg cases, June Berkshire, England, UK.  -  Nigel Cattlin
01627842
Nigel Cattlin / Harlequin ladybird (Harmonia axyridis) larvae still with a raft of empty egg cases, June Berkshire, England, UK.
European green crab (Carcinus maenas), an invasive species in North America, Kejimkujik Seaside National Park, Nova Scotia, Canada. July.  -  Nick Hawkins
01624530
Nick Hawkins / European green crab (Carcinus maenas), an invasive species in North America, Kejimkujik Seaside National Park, Nova Scotia, Canada. July.
Red swamp crayfish (Procambarus clarcki), invasive species, captive, Italy, July.  -  Fabio Pupin
01622170
Fabio Pupin / Red swamp crayfish (Procambarus clarcki), invasive species, captive, Italy, July.
Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.  -  Shane Gross
01619320
Shane Gross / Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.
Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.  -  Shane Gross
01619319
Shane Gross / Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.
Great Fen / Raft spider (Dolomedes plantarius), adult female eating an invasive species of fish, Western mosquitofish, (Gambusia affinis), Alessandria, Italy, August.  -  Emanuele Biggi
01592790
Emanuele Biggi / Great Fen / Raft spider (Dolomedes plantarius), adult female eating an invasive species of fish, Western mosquitofish, (Gambusia affinis), Alessandria, Italy, August.
American mink (Mustela vison) on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.  -  Sven  Zacek
01515895
Sven Zacek / American mink (Mustela vison) on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.
American mink (Mustela vison) shaking off fur on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.  -  Sven  Zacek
01515893
Sven Zacek / American mink (Mustela vison) shaking off fur on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.
American mink (Mustela vison) running on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.  -  Sven  Zacek
01515890
Sven Zacek / American mink (Mustela vison) running on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.
Freshwater jellyfish (Craspedacusta sowerbii) Lake Lugano, Ticino, Switzerland. August. Invasive species.  -  Franco  Banfi
01515349
Franco Banfi / Freshwater jellyfish (Craspedacusta sowerbii) Lake Lugano, Ticino, Switzerland. August. Invasive species.
Freshwater jellyfish (Craspedacusta sowerbii) Lake Lugano, Ticino, Switzerland. August. Invasive species.  -  Franco  Banfi
01515347
Franco Banfi / Freshwater jellyfish (Craspedacusta sowerbii) Lake Lugano, Ticino, Switzerland. August. Invasive species.
Harlequin ladybird (Harmonia axiridis) on end of leaf, invasive species. Sussex, England, UK. March.  -  Stephen  Dalton
01501453
Stephen Dalton / Harlequin ladybird (Harmonia axiridis) on end of leaf, invasive species. Sussex, England, UK. March.
Harlequin ladybird (Harmonia axyridis) in flight, invasive species, England, UK. March.  -  Stephen  Dalton
01501419
Stephen Dalton / Harlequin ladybird (Harmonia axyridis) in flight, invasive species, England, UK. March.
Rose-ringed / ring-necked parakeets (Psittacula krameri) in flight on way to roost in an urban cemetery, London, UK, January. Finalist in the Birds category, Wildlife Photographer of the Year Awards (...  -  Sam Hobson
01475527
Sam Hobson / Rose-ringed / ring-necked parakeets (Psittacula krameri) in flight on way to roost in an urban cemetery, London, UK, January. Finalist in the Birds category, Wildlife Photographer of the Year Awards (...
Black Rat (Rattus rattus) young. Introduced species on Maria Magdalena Island, Marias Islands Biosphere Reserve, Gulf of California, Mexico, September.  -  Claudio Contreras
01420390
Claudio Contreras / Black Rat (Rattus rattus) young. Introduced species on Maria Magdalena Island, Marias Islands Biosphere Reserve, Gulf of California, Mexico, September.
Composite image of American fish species introduced to Europe: Pumpkinseed sunfish (Lepomis gibbosus, left), Brown bullhead (Ameiurus nebulosus, right) and Eastern mudminnow (Umbra pygmaea, under), ph...  -  Bert Willaert
01409131
Bert Willaert / Composite image of American fish species introduced to Europe: Pumpkinseed sunfish (Lepomis gibbosus, left), Brown bullhead (Ameiurus nebulosus, right) and Eastern mudminnow (Umbra pygmaea, under), ph...
Signal crayfish (Pacifastacus leniusculus) in a defensive posture after being caught by The Tweed Foundation monitoring the species population and spread on the River Till, Northumberland, England, UK...  -  Rob Jordan / 2020VISION
01378507
Rob Jordan / 2020VISION / Signal crayfish (Pacifastacus leniusculus) in a defensive posture after being caught by The Tweed Foundation monitoring the species population and spread on the River Till, Northumberland, England, UK...
Signal crayfish (Pacifastacus leniusculus) in a defensive posture after being caught by The Tweed Foundation monitoring the species population and spread on the River Till, Northumberland, England, UK...  -  Rob Jordan / 2020VISION
01378506
Rob Jordan / 2020VISION / Signal crayfish (Pacifastacus leniusculus) in a defensive posture after being caught by The Tweed Foundation monitoring the species population and spread on the River Till, Northumberland, England, UK...
Yellow fan coral / Seafan (Paramuricea clavata)  amongst mass of invasive algae (Caulerpa taxifolia) with Rainbow wrasse fish (Coris julis), Strait of Messina, Southern Italy  -  Roberto Rinaldi
01372198
Roberto Rinaldi / Yellow fan coral / Seafan (Paramuricea clavata) amongst mass of invasive algae (Caulerpa taxifolia) with Rainbow wrasse fish (Coris julis), Strait of Messina, Southern Italy
Male Asian hornet (Vespa velutina nigrithorax) France, November 2011  -  Daniel Heuclin
01361890
Daniel Heuclin / Male Asian hornet (Vespa velutina nigrithorax) France, November 2011
Pine Marten (Martes martes) adult female in caledonian forest, The Black Isle, Highlands, Scotland, UK, July. Did you know? In Scotland, pine martens moderate the population of the invasive grey squir...  -  Terry Whittaker / 2020VISION
01342276
Terry Whittaker / 2020VISION / Pine Marten (Martes martes) adult female in caledonian forest, The Black Isle, Highlands, Scotland, UK, July. Did you know? In Scotland, pine martens moderate the population of the invasive grey squir...
Nature Conservancy employees cutting back Japanese knotweed (Fallopia japonica) in an invasive species eradication effort on the TNC's Silverweed Seep preserve in Plainfield, New Hampshire, USA.  -  Jerry Monkman
01289817
Jerry Monkman / Nature Conservancy employees cutting back Japanese knotweed (Fallopia japonica) in an invasive species eradication effort on the TNC's Silverweed Seep preserve in Plainfield, New Hampshire, USA.
Red Imported Fire Ant (Solenopsis invicta), also known as RIFA, worker portrait, highly invasive introduced species, Texas  -  Michael Durham
00442495
Michael Durham / Red Imported Fire Ant (Solenopsis invicta), also known as RIFA, worker portrait, highly invasive introduced species, Texas
Dandelion (Taraxacum officinale) ready to release its seeds, Germany, introduced into North America as a salad green now is invasive weed  -  Konrad Wothe
00190101
Konrad Wothe / Dandelion (Taraxacum officinale) ready to release its seeds, Germany, introduced into North America as a salad green now is invasive weed
Brown or Norway rat (Rattus norvegicus) . Rats are invasive on the Galapagos islands. Whilst Black rats were introduced in the 17th and 18th centuries, Brown rats were initially seen in major ports of...  -  Tui De Roy
01651535
Tui De Roy / Brown or Norway rat (Rattus norvegicus) . Rats are invasive on the Galapagos islands. Whilst Black rats were introduced in the 17th and 18th centuries, Brown rats were initially seen in major ports of...
An invasive giant African land snail (Achatina fulica) in cloud forest, Choco region, Northwestern Ecuador.  -  Nick Hawkins
01648009
Nick Hawkins / An invasive giant African land snail (Achatina fulica) in cloud forest, Choco region, Northwestern Ecuador.
New Zealand pigmyweed (Crassula helmsii), an invasive plant. Spynes Mere Nature Reserve (SWT), Surrey, England, July.  -  Linda Pitkin
01646654
Linda Pitkin / New Zealand pigmyweed (Crassula helmsii), an invasive plant. Spynes Mere Nature Reserve (SWT), Surrey, England, July.
New Zealand Flatworm (Arthurdendyus trianguluatus), invasive species, County Down, Northern Ireland October 2019.  -  Will Watson
01643264
Will Watson / New Zealand Flatworm (Arthurdendyus trianguluatus), invasive species, County Down, Northern Ireland October 2019.
Harlequin ladybirds (Harmonia axyridis) mating pair Sutcliffe Park Nature Reserve, Eltham, London, England, UK. May.  -  Rod Williams
01642540
Rod Williams / Harlequin ladybirds (Harmonia axyridis) mating pair Sutcliffe Park Nature Reserve, Eltham, London, England, UK. May.
Grey squirrel (Sciurus carolinensis) adult feeding on peanuts in a mesh cover bird feeder, Berkshire, England, UK, June  -  Nigel Cattlin
01641618
Nigel Cattlin / Grey squirrel (Sciurus carolinensis) adult feeding on peanuts in a mesh cover bird feeder, Berkshire, England, UK, June
Japanese wireweed (Sargassum muticum), invasive brown seaweed originally from Japan, Normandy, France, June  -  Philippe Clement
01638511
Philippe Clement / Japanese wireweed (Sargassum muticum), invasive brown seaweed originally from Japan, Normandy, France, June
New Zealand Pygmyweed (Crassula helmsii) in flower, an invasive species of plant growing in a pond, Herefordshire, England, September.  -  Will Watson
01637959
Will Watson / New Zealand Pygmyweed (Crassula helmsii) in flower, an invasive species of plant growing in a pond, Herefordshire, England, September.
Spanish bluebell (Hyacinthoides hispanica) cross section of bulb with leaf and root development. Cultivated in garden. January.  -  Nigel Cattlin
01635545
Nigel Cattlin / Spanish bluebell (Hyacinthoides hispanica) cross section of bulb with leaf and root development. Cultivated in garden. January.
Spanish bluebell (Hyacinthoides hispanica) bulb with leaf and root development in late winter  -  Nigel Cattlin
01635544
Nigel Cattlin / Spanish bluebell (Hyacinthoides hispanica) bulb with leaf and root development in late winter
Spanish bluebell (Hyacinthoides hispanica) bulb with leaf and root development in late winter  -  Nigel Cattlin
01635543
Nigel Cattlin / Spanish bluebell (Hyacinthoides hispanica) bulb with leaf and root development in late winter
Grey squirrel (Sciurus carolinensis) feeding on Strawberries in garden. Norfolk, England, UK. June.  -  Ernie Janes
01633709
Ernie Janes / Grey squirrel (Sciurus carolinensis) feeding on Strawberries in garden. Norfolk, England, UK. June.
Grey squirrel (Sciurus carolinensis) preparing to jump. Dorset, England, UK. April.  -  Colin Varndell
01633181
Colin Varndell / Grey squirrel (Sciurus carolinensis) preparing to jump. Dorset, England, UK. April.
Western whip snake, (Hierophis viridiflavus), non-invasive ID marking by cutting ventral scales, Italy, April . Non-ex.  -  Fabio Pupin
01632902
Fabio Pupin / Western whip snake, (Hierophis viridiflavus), non-invasive ID marking by cutting ventral scales, Italy, April . Non-ex.
Itchgrass (Rottboellia cochinchinensis) unopened flower spikes. An agressive weed of crops particularly in tropical and sub-tropical climates.  -  Nigel Cattlin
01631426
Nigel Cattlin / Itchgrass (Rottboellia cochinchinensis) unopened flower spikes. An agressive weed of crops particularly in tropical and sub-tropical climates.
Itchgrass (Rottboellia cochinchinensis) prop / brace roots elevating plant above soil. An agressive weed of crops particularly in tropical and sub-tropical climates.  -  Nigel Cattlin
01631423
Nigel Cattlin / Itchgrass (Rottboellia cochinchinensis) prop / brace roots elevating plant above soil. An agressive weed of crops particularly in tropical and sub-tropical climates.
Itchgrass (Rottboellia cochinchinensis) prop / brace roots elevating plant above soil. An agressive weed of crops particularly in tropical and sub-tropical climates.  -  Nigel Cattlin
01631422
Nigel Cattlin / Itchgrass (Rottboellia cochinchinensis) prop / brace roots elevating plant above soil. An agressive weed of crops particularly in tropical and sub-tropical climates.
Californian red scale (Aonidiella aurantii) infestation on Lemon (Citrus limon) wood. Native to China. Sicily, Italy. October.  -  Nigel Cattlin
01631412
Nigel Cattlin / Californian red scale (Aonidiella aurantii) infestation on Lemon (Citrus limon) wood. Native to China. Sicily, Italy. October.
Californian red scale insect (Aonidiella aurantii) scales on Orange (Citrus sinensis) leaf, zonal chlorosis present. Native to China. Sicily, Italy. October.  -  Nigel Cattlin
01631411
Nigel Cattlin / Californian red scale insect (Aonidiella aurantii) scales on Orange (Citrus sinensis) leaf, zonal chlorosis present. Native to China. Sicily, Italy. October.
Californian red scale (Aonidiella aurantii) infestation on Lemon (Citrus limon) wood. Native to China. Sicily, Italy. October.  -  Nigel Cattlin
01631410
Nigel Cattlin / Californian red scale (Aonidiella aurantii) infestation on Lemon (Citrus limon) wood. Native to China. Sicily, Italy. October.
Californian red scale (Aonidiella aurantii) infestation on Lemon (Citrus limon) stem. Native to China. Sicily, Italy. October.  -  Nigel Cattlin
01631409
Nigel Cattlin / Californian red scale (Aonidiella aurantii) infestation on Lemon (Citrus limon) stem. Native to China. Sicily, Italy. October.
Asian wood frog (Hylarana temporalis) on invasive Miconia, Laxapana Falls, Maskeliya, Sri Lanka.  -  Duncan Murrell
01630879
Duncan Murrell / Asian wood frog (Hylarana temporalis) on invasive Miconia, Laxapana Falls, Maskeliya, Sri Lanka.
Cane toad (Rhinella marina) at night, an invasive species which has spread throughout forests of Makira Island. Solomon Islands. 2018.  -  David Tipling
01630323
David Tipling / Cane toad (Rhinella marina) at night, an invasive species which has spread throughout forests of Makira Island. Solomon Islands. 2018.
Cambridge vagrant butterfly (Nepheronia thalassina) nectaring on Lantana (Lantana camara). Flowers turn from yellow to pink when no nectar is provided. In garden, Tanzania. Native to tropical Americas...  -  Heather Angel
01629593
Heather Angel / Cambridge vagrant butterfly (Nepheronia thalassina) nectaring on Lantana (Lantana camara). Flowers turn from yellow to pink when no nectar is provided. In garden, Tanzania. Native to tropical Americas...
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