Interesting/Little Known introduced populations

I have just seen this interesting paper and thought I would put it here.

A population of the Asian giant mantis Hierodula tenuidentata has been found reproducing in the Po Valley of Italy. The paper actually found that H. tenuidentata was the same species as a more western mantis Hierodula transcaucasica, which has naturally spread west from the Caucasus into southeastern Europe, as far as western Albania. While it cannot be ruled out that the Asian giant mantis arrived in Italy naturally, the lack of any sightings in the Dalmatian area means this is probably a man-assisted arrival, albeit one that could have been expected to happen naturally over time.

The paper is included in full below:
http://www.biodiversityjournal.com/pdf/9(4)_399-404.pdf
 
I have been reading 'Europe: A Natural History' by Tim Flannery (a truly fascinating book, published in 2018) that I received for Christmas and in it the author briefly mentions that he has 'been told that a small population of white cockatoos has become established on the Cote d'Azur'.

An initial search on Google has not provided any further information on this population.
 
That the Common myna is doing well outside its original habitat is well known but Europe has been so far not mentioned as being part of their new home.
However on Majorca and the Canary Islands the species had already become native but has been again removed by men.
On the continent there are however still some populations left in Italy and Portugal.
 
I just found something I think might be quite interesting - was looking on the CABI (Invasive Species Compendium) page for the Egyptian goose and found this particular quote under the distribution heading:

'The species is recorded to have been native in parts of the Danube Valley in southeast Europe until the early eighteenth century... the extent of this distribution in relation to current national borders is incompletely known, however'.

Now very interested, I followed one of the links included (Blair et al., 2008) and there it said that the species naturally bred from southern Hungary downstream to Romania.

A bit awkward that, if my understanding is correct, a formerly native European species is now being completely banned from being kept in the EU.

The CABI page is included below:
Alopochen aegyptiaca (Egyptian goose)

The paper by Blair et al., is included here; the information about the Egyptian goose's former European native range is on page 41:
https://www.unep-aewa.org/sites/default/files/document/inf2_17_non-native_0.pdf
 
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A bit awkward that, if my understanding is correct, a formerly native European species is now being completely banned from being kept in the EU.

I have never heard of this before, but this former European range is so far removed from its African one, surely this would have been an introduced population that later became extinct?

In UK, Egyptians are now common in the Greater London area, the Thames as far as Oxford and seem to be increasingly common in some other Southern counties too.
 
I just found something I think might be quite interesting - was looking on the CABI (Invasive Species Compendium) page for the Egyptian goose and found this particular quote under the distribution heading:

'The species is recorded to have been native in parts of the Danube Valley in southeast Europe until the early eighteenth century... the extent of this distribution in relation to current national borders is incompletely known, however'.

Now very interested, I followed one of the links included (Blair et al., 2008) and there it said that the species naturally bred from southern Hungary downstream to Romania.

A bit awkward that, if my understanding is correct, a formerly native European species is now being completely banned from being kept in the EU.

The CABI page is included below:
Alopochen aegyptiaca (Egyptian goose)

The paper by Blair et al., is included here; the information about the Egyptian goose's former European native range is on page 41:
https://www.unep-aewa.org/sites/default/files/document/inf2_17_non-native_0.pdf
This paper is of great interest, although much has changed in the intervening twenty years. I somehow doubt that the alleged hybridisation of mallard with domestic fowl and Guineafowl would bear scrutiny!
 
I have never heard of this before, but this former European range is so far removed from its African one, surely this would have been an introduced population that later became extinct?

There are quite a few African waterbirds with similarly disjunct populations - I know that sacred ibis, goliath herons and African darters are all native breeders in parts of the Middle East (the latter species is actually listed on the IUCN as Regionally Extinct in Europe itself) and the CABI page does mention that Egyptian geese were also formerly native to the Middle East.

While I think it is quite possible the Southeast European Egyptian geese may be an extinct introduced population, at the same time I wouldn't be unduly surprised if they did make it there naturally.
 
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