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Introducing Animals to other continents/habitats
Topic Started: Feb 5 2018, 03:53 AM (474 Views)
Wild Spirit
Unicellular Organism
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Hi guys,

Just a hypothetical scenario. How do you think the following animals will fair if introduced to different habitats. How would they interact with the native predators or prey? For the sake of argument, let’s ignore the affect of climate on these animals. But if you want to comment on the feasability of intriducing these animals, that would be ok as well.

Here’s the scenarios:

1.Africa
a. Tigers in Africa
b. Brown bears in Africa
c. Grey Wolves in Africa

2. South America
a. Tigers in South America
b. Gorillas, Chimps, Orang Utans in South America

3. North America
a. Tigers in North America
b. African Lions North America
c. Spotted Hyena in North America

4. Australia
a. Komodo Dragons In Australia
b. Cheetah in Australia

5. Antarctica
a. Polar Bears in Antarctica

6. Indian/South East Asian Forests
a. Spotted Hyena in Indian/SEA forests
b. Gorillas in Indian/SEA forests


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Grazier
Omnivore
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I've always been intrigued by the idea of jaguars in the northern part of Australia. Asiatic water Buffalo, boar, scrub cattle, feral horses, goats, rusa and chital deer, crocs, lizards and snakes, turtles and fish, and of course kangaroos and wallabies, all in huge numbers. It would be a jaguar paradise really.
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Ryo
Omnivore
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I am going by a bit different scenario and assume that humans either aren't there or won't take up as much space nor pose a problem.

1:
A: I think Tigers could do well in Africa, I don't know if there would be enough large prey items in the very dense forests and jungles, so they would likely have to get into the same Territories Leopards are in terms of interracting with Lions and Hyenas. It would be dangerous however. While African Wild Dogs aren't as fierce as Dholes, Leopards, Crocs, Pythons and especially gangs of Hyenas and Lions are a threat of stealing their kills or kill their young. I assuem Cheetahs and Wild Dogs could kill Tiger cups as well sometimes, but overall I think they could survive with difficulty.

B: Assuming they could tolerate the weather, I onæy think they could survive in areas with atleast lots of water. I am not sure how well they'd fare in the dry seasons where all the food and water is gone. I also don't know how much plant matter there is down there. But minus this, then I think the average Grizzly could survive, but it would be at high risk from Hyensa and Lions. Assuming a large Kodiak somehow keeping its size down there, it could probably steal kills from few Lions and Hyenas or fend them off.
Overall, not as good as the Tiger.

C: I think they would do okey, but they are at danger from especially Hyenas due to them stealing their kills, but I think they could avoid the Lions. If we assumed MV Wolves at sizes of 60kg-65kg average, then they'd stand a much better chance at fending off both Lions and Hyenas, but many of them would likely die, if not evolve to become smaller, but I could see the Wolves as a species survive.
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Claudiu Constantin Nicolaescu
Heterotrophic Organism
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The humans have changed enough the planet. So, it would be almost the same with the new species in your scenario.
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Grazier
Omnivore
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Invasive species happen naturally too, and devastate ecosystems naturally, which then rebuild and create new ecosystems. A lot of the priorities of environmentalists are totally ignorant of natural history and nature in general. From their studio apartment in some trendy hobo-chic suburb in the inner city they think they know how the wilderness works.
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Claudiu Constantin Nicolaescu
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The cities are part of the wilderness too.
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Taipan
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Wild Spirit
Feb 5 2018, 03:53 AM
How do you think the following animals will fair if introduced to different habitats?


Welcome Wild Spirit,
Given nearly every species you listed is an adaptable generalist, they would probably all do well. However, I'm all for re-populating ecosystems with their native species (eg. wolves in Yellowstone NP.), but placing apex predators (or any animal) in non native environments is not wise, and never ends well. The lesson of history is we never learn the lesson of history.

Posted Image

Posted Image
A dead goanna next to its killer: a cane toad it tried to consume.

Posted Image
Feral cats had been killing thousands of fairy prions.

Edited by Taipan, Feb 5 2018, 09:06 PM.
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Claudiu Constantin Nicolaescu
Heterotrophic Organism
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I still believe that the greatest threat to nature is the modern man, not the so called "invasive species". Do not forget that the modern man himself is an "invasive species", at the origin being an African species who spread worldwide. By the way, there are grey wolves (Canis lupus) in Africa; some researchers believe the large Egyptian jackal (Canis aureus lupaster) may be in fact a grey wolf subspecies (Canis lupus lupaster).
Edited by Claudiu Constantin Nicolaescu, Feb 5 2018, 10:23 PM.
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M4A2E4
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Herbivore
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Polar bears in antarctica would be an absolute slaughter.
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Claudiu Constantin Nicolaescu
Heterotrophic Organism
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But in the Antarctic there is the leopard seal (Hydrurga leptonyx) who can compete with the polar bear (Ursus maritimus).
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Mammuthus
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Proboscidean Enthusiast
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That is in water, but assuming they primarily stayed on land it would be an absolute slaughter fest and Penguin populations would drop quite considerably IMO.
Edited by Mammuthus, Feb 6 2018, 07:05 AM.
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Mesopredator
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Disaster taxa
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It isn't obvious what an introduction would lead to. It could be a total success or a massive failure. People act as if reintroductions do not suffer from this effect but they're wrong. People act as if the environment hasn't changed. That is not according to what've learned. But I like them watch and fail. I've done a few years of ecology now; and I'm not impressed. I do know a few secrets about how Nature functions; I belief that. I'm not talking predictions; I'm talking general rules. I do try to predict at times from small scale effects that could propagate themselves in populations; but stuff happens. I'm not sharing them; I put my trust in Nature. I might share some with you all in which it is already too late to act upon. If you want to understand what I'm getting at read Stuart Kauffman and Tim Low. Or; just read Jurassic Park.

I'm not saying all is uncontrollable; but yes, life, um, finds a way...




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Satya
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Wild Spirit
Feb 5 2018, 03:53 AM

Here’s the scenarios:

1.Africa
a. Tigers in Africa

2. South America
a. Tigers in South America

3. North America
a. Tigers in North America


4. Australia
a. Komodo Dragons In Australia
b. Cheetah in Australia

5. Antarctica
a. Polar Bears in Antarctica

6. Indian/South East Asian Forests
a. Spotted Hyena in Indian/SEA forests
b. Gorillas in Indian/SEA forests

Tiger is solitary (n intelligent) creature and in any disturbances he will prey most easiest species ... Human. lol

so put Tiger aside.

IF you want big game choose Lions(Asiatic) ,they live in human habituate without harming much .... Gir-India.

Rest are OK we can try.
Edited by Satya, Feb 17 2018, 03:24 AM.
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K9 Bite
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Herbivore
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I would love to see the interactions between Grey Wolves and African Wild Dogs....in some parts of asia, Grey Wolves have been seen with Dholes though their interactions have probaly been more competive than friendly. Same could be said for a Grey Wolf/AWD interaction. As for the sub-species, I say the Mexican Grey Wolf is the best hot weathered wolf to adapt to the harshness of Africa's Plains. Other hot weathered wolves are the arabian and indian but they're not as heavily built as the mexican imo which would lower the chances of a successful wolf population being established in Africa. Thats my view anyway, feel free to change to what you think would be the better sub-species.



Edit: Polar Bears would completely decimate the emperor penguin population haha....though a fight bewteen a Leopard Seal and a Polar Bear would be pretty cool. Is that a matchup or no?
Edited by K9 Bite, Feb 13 2018, 11:56 AM.
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