Interesting/Little Known introduced populations

@DavidBrown might like this one: a giant orb-weaver spider from eastern Asia, the Joro Spider Nephila clavata, has become established in Georgia (USA) and, this year in particular, is being seen in substantial numbers in the state.

Like it or not, Joro spiders are here to stay

They were first spotted in Georgia in 2013 and are thought to have arrived as hitch-hikers on cargo ships. There are two other similar orb-weavers in the USA, the Banana Spider N. clavipes of the Neotropics (introduced in the 1860s, and the only Nephila species native to the Americas) and the native Yellow Garden Spider Argiope aurantia of North and Central America.
 
Chlidonias said:
@DavidBrown might like this one: a giant orb-weaver spider from eastern Asia, the Joro Spider Nephila clavata, has become established in Georgia (USA) and, this year in particular, is being seen in substantial numbers in the state.

Like it or not, Joro spiders are here to stay

They were first spotted in Georgia in 2013 and are thought to have arrived as hitch-hikers on cargo ships. There are two other similar orb-weavers in the USA, the Banana Spider N. clavipes of the Neotropics (introduced in the 1860s, and the only Nephila species native to the Americas) and the native Yellow Garden Spider Argiope aurantia of North and Central America.
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Their numbers have exploded and they will likely spread across the country.
 
Great Argus said:
Interestingly most of the successful gamebirds have assimilated themselves into our ecosystem without much conflict. Ring-necked Pheasant, Gray Partridge, Chukar, and Himalayan Snowcock have really only minimally impacted our ecosystems.
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Maybe in some parts of the country - pheasants come into conflict with prairie-chickens anywhere they both occur. Female pheasants will dump their eggs into prairie-chicken nests, and pheasant eggs hatch much faster than prairie-chicken eggs. This causes the female prairie-chicken to leave her nest and raise the chicks that hatch first (the pheasants) and then leave the eggs that are really hers.

Of course, that doesn't stop nearly every state from having a pheasant stocking program. In most states pheasants aren't really established and their numbers are maintained only by frequent releases, usually by state governments. If this stocking stopped pheasant would either be gone or be drastically reduced in numbers.
 
birdsandbats said:
Laughing Dove is introduced in Western Australia.
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The Laughing Dove has been introduced to Mauritius. Some were released from a local bird park in the early 1990s and established themselves in the south-west of the island. In the first decade they increased and spread so they were occasionally seen as far as the middle of the island. They have subsequently declined so that now there is only a small population in the driest part of the island in the south west around Black River.
 
birdsandbats said:
Black-tailed Jackrabbit are apparently introduced to a few places on North America's east coast, including Florida, Virginia, and New Jersey.
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Interesting, you’d think they wouldn’t thrive in those more humid regions considering how adapted they are to the desert.
 
Randomname0183 said:
Southern white rhinos in Yunnan Rhinos reintroduced to Yunnan | GoKunming
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birdsandbats said:
I can't find any reference to those after 2013, so I'm guessing they're gone. It was a stupid idea anyway.
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The rhinos are still there. Looking on trip.com (Pu'er National Park, Xiniu (Rhino) Plains Scenic Area travel guidebook –must visit attractions in Pu'er – Pu'er National Park, Xiniu (Rhino) Plains Scenic Area nearby recommendation – Trip.com) the reserve appears to be a partly-free-range zoo in reality. Lots of photos on there of captive animals, a mix of native and foreign species which are either contained or have been released there.

I wouldn't call this an introduced (i.e. wild) population of rhinos despite what the media have it as.
 
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