Interesting/Little Known introduced populations
- Thread starter birdsandbats
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The maras only appeared in 2020 so I'd say they're probably too recently established as a population to know how well they will establish.
In general at Al Qudra I get the impression that there are some species like gazelles and oryx that are semi-managed (quite common in nature reserves in the middle east in my experience for the hoofstock to be managed) but I can't see anything about the maras being managed at all?
And the cranes seem to freely wander all around the country, as can be seen looking at the eBird map.
Given that the article says that no one knows where they came from, that would certainly suggest that they are unmanaged.
I came across Mara in the UAE a while back while trying to find out about Mara in Europe (the link is to the post on this thread Interesting/Little Known introduced populations)
The dangers of replying to a 38 page thread
I did search the thread before posting but didn't notice that.
Here's one that, although not an established population, is certainly interesting - for the second time in four months, a group of giraffe have been spotted roaming the semi-desert of Coahuila in northern Mexico. I do not know exactly how many are loose - definitely three, possibly with the suggestion of more in multiple groups. There are plenty of unsubstantiated theories about their origins.
More information, including a video of three giraffe filmed in December 2024, can be seen here.
More information, including a video of three giraffe filmed in December 2024, can be seen here.
The_Leopard_Seal
Well-Known Member
https://www.nytimes.com/2023/10/24/science/caiman-invasive-species-florida.html
Glad to hear that there is one invasive species that Florida is getting under control.
Glad to hear that there is one invasive species that Florida is getting under control.
A person in a Facebook group for the identification of New Zealand reptiles recently uploaded a photo of a baby Eastern Water Dragon (Intellagama lesueurii lesueurii) which was reportedly found in the wild on a private property near Te Awamutu in the Waikato region. Although lone adult Eastern Water Dragon are sometimes found in the wild in New Zealand, those ones are likely to have been born in captivity. This new report of a baby one from the wild suggests that the Eastern Water Dragon has recently bred in the wild in New Zealand.
The Eastern Water Dragon was recently banned from being privately bred or sold in the Auckland region, but not from other regions in New Zealand so far.
The Eastern Water Dragon was recently banned from being privately bred or sold in the Auckland region, but not from other regions in New Zealand so far.
cloudedleopard611
Well-Known Member
There is a population of Eurasian tree sparrows concentrated in Saint Louis and a bit further to the north in Missouri, Illinois, and Iowa.
They're also in southern Wisconsin.
cloudedleopard611
Well-Known Member
I had not heard they made it that far north. Interesting!
I believe this hasn’t been said yet but there is an introduced population of Smooth Newts in the suburbs of South-east Melbourne and potentially further south towards the Mornington Peninsula. It was a bit of a local secret with the government trying to hide the exact location of said Newts but they were eventually located and posted onto iNaturalist. They originate from aquarium releases probably in the 90’s or 2000’s as they were first detected in 2011.
I’ve heard that there’s some out near the airport too. If so, they could be spread across most of Melbourne.
Found out today that there are two established populations of Mediterranean house geckos, Hemidactylus turcicus, in the north of England - the most northerly known populations in the world.
Both populations are living within buildings at universities - one at the University of Nottingham has been present since the 1970s, while the other at the University of Hull is estimated to have been established in either the late 1990s or early 2000s. Evidence of breeding throughout this time indicates that it is a true established population, and not simply escaped pets or stowaways.
Both populations are living within buildings at universities - one at the University of Nottingham has been present since the 1970s, while the other at the University of Hull is estimated to have been established in either the late 1990s or early 2000s. Evidence of breeding throughout this time indicates that it is a true established population, and not simply escaped pets or stowaways.
Not exactly a huge surprise, we have them in much colder places in the US.
A journal article from early this year about Pterapotrechus salomonoides; a large omnivorous cricket that is native to Southern Queensland in Australia but was accidentally introduced to New Zealand, where it was first recorded in 1990. In New Zealand this species is currently established only in the northern North Island, though it may spread further; its relatively poor flying ability limits its movements. Reports of sightings of this cricket that have been catalogued on iNaturalist have been of great help in mapping this insect's distribution in New Zealand.
An Australian raspy cricket established in New Zealand, Pterapotrechus salomonoides (Orthoptera, Gryllacrididae), with notes on ecology and first description of the male
An Australian raspy cricket established in New Zealand, Pterapotrechus salomonoides (Orthoptera, Gryllacrididae), with notes on ecology and first description of the male
Zhao yun
Well-Known Member
Forgot to mention that this is in Kota Kinabalu in Sabah.
Apparently there is a small, localised population of introduced Smooth Newts (Lissotriton vulgaris) in Australia, near Melbourne. The extent of this populations range appears to be increasing... not good. These are the only wild-living members of Urodela in the country, as Australia has no native salamanders, newts or sirens.