Alien Species Collection

Rose-ringed / ring-necked parakeets (Psittacula krameri) in flight on way to roost in an urban cemetery, London, UK. January

Portrait of rabbit in leaf litter, Okunoshima Rabbit Island, Takehara, Hiroshima, Japan

European green crab (Carcinus maenas), an invasive species in North America, Kejimkujik Seaside National Park, Nova Scotia, Canada. July

Wild sage (Lantana camara), flowers turn pink following pollination. Native to tropical America. Invasive species, Tanzania

Skunk cabbage (Lysichiton americanus) in visible light. In cultivation, Surrey, England, UK. Native to Canada and USA. Sequence 1/2

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

Male Golden Pheasant (Chrysolophus pictus) standing on grass in display plumage. Kew Gardens, England, UK. March

Wild boar (Sus scrofa) eyes glowing at dusk, introduced species in La Pampa, Argentina

Slipper limpet (Crepidula fornicata) invasive species, Jersey, British Channel Islands, June 2015

UK Ladybird species, native and invasive, from left to right: Seven-Spot (Coccinella 7-punctata), Harlequin (Harmonia axyridis), Harlequin morph, Two-Spot (Adalia bipunctata)

American paddlefish (Polyodon spathula), an introduced species native to the Mississippi River Basin, USA, swimming over lake bed, private lake, Moscow region, Russia

Garden lupin (Lupinus polyphyllus) Terwick Church Fields, Sussex, UK. June

Two Black swans (Cygnus atratus) on water, Noirmoutier Island, Vendee, France, July

Close up of a Green iguana (Iguana iguana) eye and face. Invasive species, Florida, USA. Captive

Rosemary beetle (Chrysolina americana) feeding on Lavender (Lavandula angustifolia) in garden Cheshire, UK, June

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

Honey bee (Apis mellifera) nectaring on freshly opened yellow Lantana (Lantana camara) flowers. Flowers turn pink when nectar no longer provided. In garden, Tanzania. Native to tropical Americas

Himalayan balsam (Impatiens glandulifera), dissection of flowers. Male phase above, downward projecting stamens release pollen onto backs of bumblebees and honey bees

Cherry laurel (Prunus laurocerasus) flowers. England, UK. April. Controlled conditions

Fairy fern (Azolla filiculoides) and Water forget me not (Myosotis scorpioides) in frozen garden pond. Surrey, England, UK. January

Bumblebee (Bombus sp) nectaring on Himalayan balsam (Impatiens glandulifera). Surrey, England, UK. September

Harlequin ladybird (Harmonia axyridis) flying, Tuscaloosa County, Alabama, USA Controlled conditions. January

Ruddy duck (Oxyura jamaicensis) male in courtship display. Valkenhorst nature reserve, Valkenswaard, The Netherlands. May

Spotted sea hare (Aplysia dactylomela), a tropical Atlantic species considered alien in the Mediterranean Sea, likely self-established due to increasing temperatures, portrait

Lodgepole pine (Pinus contorta) trees, a non-native species, surrounding Lochan nan Geadas, Cairngorms National Park, Scotland, UK. September, 2017

Portrait of two siika deer (Cervus nippon), possibly red deer (Cervus elaphus) hybrids, on open moorland in snow, Cairngorms National Park, Scotland, UK. January 2020

Frog (Rana temporaria) spawn amongst invasive Fairy fern (Azolla filiculoides) from garden pond. Photographed in aquarium, controlled conditions. Surrey, England, UK. March

Baby rabbit with back paw raised, Okunoshima Rabbit Island, Takehara, Hiroshima, Japan

Group of alert adult rabbits, Okunoshima Rabbit island, Takehara, Hiroshima, Japan

Rabbits resting with alert ears, Okunoshima Rabbit Island, Takehara, Hiroshima, Japan

Rabbit sitting alert under flower, Okunoshima Rabbit Island, Takehara, Hiroshima, Japan, January 2010

Rabbit walking through pathway through bushes, Okunoshima Rabbit Island, Takehara, Hiroshima, Japan

Rabbit grooming toes, Okunoshima Rabbit Island, Takehara, Hiroshima, Japan

Glittering-bellied Emerald (Chlorostilbon lucidus) in flight to Grevillea banksii flowers (native of Australia), lowland Southern Bahia Atlantic Rainforest

Crimson / Lemon bottlebrush flower (Malaleuca / Callistemon citrinus), an introduced species from Australia, Kilada, Argolis, Peloponnese, Greece, July 2013

Young rabbit hiding in grass, Okunoshima Rabbit island, Takehara, Hiroshima, Japan

Akaka falls (422 foot) surrounded by vegetation, (much of which is non-native) Akaka Falls State Park, Hawaii

Cooked crayfish
Cooked signal crayfish (Pacifastacus leniusculus)

Clay-colored robin (Turdus grayi), drinking from flower of African tulip tree (Spathodea campanulata) Costa Rica. This tree is an invasive species

Rose-ringed / ring-necked parakeets (Psittacula krameri) in flight on way to roost in an urban cemetery, London, UK, January

Male mandarin duck
Mandarin drake. Dorset UK March 2010

Caught crayfish
Caught signal crayfish (Pacifastacus leniusculus)

Green Iguana - Young. Docile vegetarian able to run upright on hindlegs
ASW-4478 Green Iguana - Young Fairchild Gardens, Miami, Florida, USA. Iguana iguana Introduced from Central and South America. Alan J. S

Green Iguana. Docile, herbivorous lizard feeding on foliage
ASW-4476 Green Iguana Fairchild Gardens, Miami, Florida, USA. Iguana iguana Introduced from Central and South America. Alan J. S

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"Exploring the Alien Species: A Glimpse into Nature's Intruders" In a bustling urban cemetery in London, a flock of Rose-ringed parakeets gracefully soar through the sky, their vibrant colors contrasting against the gray cityscape. These avian invaders have made this foreign land their home, captivating photographers and earning them a spot as finalists in the prestigious Wildlife Photographer of the Year Awards. Across the Atlantic, another unwelcome visitor has disrupted North American ecosystems. The European green crab scuttles along Kejimkujik's shores, its presence threatening native species' delicate balance. This invasive creature serves as a stark reminder of nature's unpredictability and mankind's impact on our surroundings. Meanwhile, in Valkenhorst nature reserve in The Netherlands, a male Ruddy duck showcases his courtship display with elegance and determination. While mesmerizing to witness, these non-native ducks pose ecological concerns due to their aggressive behavior towards local waterfowl populations. Venturing further south to tropical America, wild sage blooms with pink flowers after successful pollination. Originally from this region but now found worldwide due to human intervention, it is an example of how plants can adapt and thrive outside their natural habitats. Beneath ocean waves lies yet another invader wreaking havoc on marine ecosystems - the invasive Lionfish. With its striking appearance and venomous spines, this predator has taken over reefs once teeming with native fish species; an unfortunate consequence of human interference. On land stands a majestic Male Golden Pheasant adorned in resplendent plumage amidst lush grasses. Though not inherently harmful like other alien species mentioned before him, he represents how some introductions can bring beauty rather than destruction. Moving back underwater off Jersey's coastlines are Slipper limpets - small but mighty invaders that cling onto rocks relentlessly altering marine environments forevermore. Their rapid spread serves as a reminder that even seemingly insignificant species can have far-reaching consequences.