Interesting/Little Known introduced populations

Fignewton said:
The ones I haven't found additional evidence for is the Alpine Ibex, Crested Myna, Red-breasted Parakeet, Aldabra Giant Tortoise, Nubian Ibex, Senegal Chameleon, Marbled Water Monitor, Western Green Mamba, and Jameson's Mamba in Mexico.
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Seriously !? Where the hell did these come from ?

I would never have expected Aldabra Giant tortoise or mamba snakes as invasives in Mexico of all places !
 
birdsandbats said:
Do you know of any interesting or little known introduced populations? Here are some I know of:

  • Greater Rheas in Germany
  • Red-Necked Wallabies in Ireland
  • Beech Martens in Wisconsin
  • Mariana Swiftlets in Hawaii
  • Electric Eels in Flordia
  • Siamese Fighting Fish in Australia
  • Various US birds not on the ABA list (Red-Vented Bulbul, Great Tit, European Goldfinch, Greylag Goose, Swan Goose, Black Swan, Pin-Tailed Whydah, Orange-Cheeked Waxbill, ect.)
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"Interesting or little known" Really? Is that what we think of the introduction of alien species into any given area/niche? I suppose, if they fail and disappear quickly, they will make 'minimal' impact and become 'interesting' but what if they don't? What if they find themselves, like the Crown of Thorns starfish on the Great Barrier Reef, Lionfish in the Atlantic, Cane Toads in Australia or, indeed, COVID-19 in humans all over the planet, highly successful and without any controlling factors? Or maybe we should restrict ourselves to deliberate hybrid introductions, like cocktail orangs in Indonesia?
'Interesting'?
 
RAG said:
"Interesting or little known" Really? Is that what we think of the introduction of alien species into any given area/niche? I suppose, if they fail and disappear quickly, they will make 'minimal' impact and become 'interesting' but what if they don't? What if they find themselves, like the Crown of Thorns starfish on the Great Barrier Reef, Lionfish in the Atlantic, Cane Toads in Australia or, indeed, COVID-19 in humans all over the planet, highly successful and without any controlling factors? Or maybe we should restrict ourselves to deliberate hybrid introductions, like cocktail orangs in Indonesia?
'Interesting'?
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I think that with "interesting" he didn't mean that the introduction of alien species is a good thing.
 
RAG said:
"Interesting or little known" Really? Is that what we think of the introduction of alien species into any given area/niche? I suppose, if they fail and disappear quickly, they will make 'minimal' impact and become 'interesting' but what if they don't? What if they find themselves, like the Crown of Thorns starfish on the Great Barrier Reef, Lionfish in the Atlantic, Cane Toads in Australia or, indeed, COVID-19 in humans all over the planet, highly successful and without any controlling factors? Or maybe we should restrict ourselves to deliberate hybrid introductions, like cocktail orangs in Indonesia?
'Interesting'?
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Luca Bronzi said:
I think that with "interesting" he didn't mean that the introduction of alien species is a good thing.
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Interesting (adjective):
arousing interest

It has nothing to do with the impact of said species.
 
Just found some intresting notes on an introduction-attemp of Kangaroos in Germany. Unfortunatly no species is named but in 1887 Philipp Freiherr von Böselager released a pair of Kangaroos into a 500 hectare large woodland-area near Heimerzheim ( about 20 kilometers south of Cologne ). The animals did well and breeding was determined till at least 1893.
During winter the animals got extra-food at several feeding-stations and this is why the attemp became unsuccesfull. Poachers soon discovered these feeding-stations and during a though winter - with temperatures of - 18 deg. Cel. and more - the poachers just short the animals at these stations and in this way they killed 35 - 40 animals. Around the turn of the centuary no animals were left anymore :(.
 
vogelcommando said:
Just found some intresting notes on an introduction-attemp of Kangaroos in Germany. Unfortunatly no species is named but in 1887 Philipp Freiherr von Böselager released a pair of Kangaroos into a 500 hectare large woodland-area near Heimerzheim ( about 20 kilometers south of Cologne ). The animals did well and breeding was determined till at least 1893.
During winter the animals got extra-food at several feeding-stations and this is why the attemp became unsuccesfull. Poachers soon discovered these feeding-stations and during a though winter - with temperatures of - 18 deg. Cel. and more - the poachers just short the animals at these stations and in this way they killed 35 - 40 animals. Around the turn of the centuary no animals were left anymore :(.
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I'm glad to hear it was unsuccessful. Think what devastation 35-40 kangaroos could cause to the indigenous wildlife. :(
 
RAG said:
"Interesting or little known" Really? Is that what we think of the introduction of alien species into any given area/niche? I suppose, if they fail and disappear quickly, they will make 'minimal' impact and become 'interesting' but what if they don't? What if they find themselves, like the Crown of Thorns starfish on the Great Barrier Reef, Lionfish in the Atlantic, Cane Toads in Australia or, indeed, COVID-19 in humans all over the planet, highly successful and without any controlling factors? Or maybe we should restrict ourselves to deliberate hybrid introductions, like cocktail orangs in Indonesia?
'Interesting'?
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Crown of Thorns starfish aren’t an introduced species at all, they are native to the Great Barrier Reef.
 
vogelcommando said:
Intresting article about the Rheas in Germany :

Inside Germany’s Giant, Hungry, Flightless-Bird Problem
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According to this article:

"In accordance with the German Federal Nature Conservation Act, a new species that survives and breeds successfully in the wild for several generations is considered native. As such, it’s awarded the same protections as any other native species, like the White Stork or gray wolf, making it illegal to catch, hunt, or kill rheas, or to damage or alter their habitat."

And I thought the EU had some dumb invasive species laws.
 
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