Globally, temperate grasslands face, more or less, common threats. In short, they have all been over-exploited by people through the persuits of agricultural production and infrastructure development. In Australia virtually no example of temperate grassland is currently in the condition it was in 1750 (i.e. pre-European invasion). Existing temperate grasslands, of which about 1% of the original remains, are mostly in a highly modified state. Many ecosysytem components (such as most mammals and some birds, insects and plants) have been lost, and this has vastly altered most of the ecological processes within these grasslands. The most important threats and 'damage caused' are summarised below:1. Clearance. Catastrophic - the whole ecosystem is lost. Examples; car park construction or sustained cropping (ploughing).2. Fragmentation. Is a consequence of clearing. Remaining patches become smaller and further separated from one another. Smaller and further separated patches tend to support fewer species. Many ecosystem processes 'break down' as interdenpdant plants and animals disappear. Chain reaction of sorts.3. Overgrazing. Sustained heavy grazing by domestick stock (sheep & cattle) and feral animals (rabbits) leads to the loss of many plant and animal species; and soil compaction by the former. Native mammals are either outcompeted for resources or deliberately exterminated (a continuing practice). Many birds, reptiles and insects disappear as overgrazing eliminates their habitat (only some species can survive in very short vegetation).4. Weed invasion. Partly a consequence of the above. Various vigorous 'weed' plant species invade grasslands and displace native species (outcompete them); moreso in smaller highly disturbed patches. The majority of such invasions has been caused by deliberate weed introduction under the blanket term 'pasture improvement'. Weed invasion leads to the loss of many plant and animal species through habitat loss.There are many more lesser threats to temperate grasslands. It should be stressed though, that no particular threat acts in isolation. They are interconnected and act together. The net result is grassland patches that become increasingly smaller, homogenous (lacking in variation) and simplified (fewer species, fewer ecological processes).
There are 4 basic levels to a tropical rainforest food chain. They are the primary producers (plants, flowers, fruits, leaves), the primary consumers (frogs, fish, possums, birds), first level carnivores (snakes, platypus, owls), and second level carnivores (crocodiles, pythons, feral dogs and cats).
A feral animal is a domesticated animal species that has reverted back to the wild. A feral cat is a wild animal.
Koalas are not feral. They are native animals of Australia, and pose no danger or threat to any other species.
Feral children may act similar to severally autistic children, but the conditions are different. Autism is caused by genetics, feralism is caused by extreme neglect, so feral children are technically not autistic, though I've seen theories that say only autistic children are capable of figuring out on how to live in the wild, and therefor all feral would be autistic.
feral is the term used to describe the wild state of a normally domesticated species, such as a cat.
Polar bears. Arctic fox in north Pacific species, rats and feral cats, humans in tropical species.
The word "feral" means an animal that was once domesticated, and has now become wild or untamed. So, feral rabbits are the same species as domesticated rabbits: they're European Rabbits, or Oryctolagus cuniculus.
A baby pig/hog is called a shoat, as well as a piglet. Since feral hogs are the same species as domesticated, I'm sure their babies are shoats, as well.
Feral cats can be found anywhere domestic cats are or have been. Feral roughly translated to 'Domestic Gone Wild' but can be kittens bred from "Domestic Gone Wild" cats too. If you are referring to Wild Cats (Felis sylvestris) All five species can be found in parts of Africa, Europe, Middle East and Asia. I happen to be the owner of a feral kitten (now tamed and adult but came from Feral linages).
Feral cats are everywhere in Australia, including South Australia. They have become an ecological disaster in all states and territories, contributing significantly to the extinction of several native species.
The English Bulldog is classified as Canis lupus. All domesticated and feral dogs belong to this genus and species. They are differentiated by breed, not by classification.
Domesticated farm animals, feral goats and introduced species do the most damage to the environment.
The Murray River short-necked turtle is currently not listed as an endangered species. Its biggest threat is that its eggs are regularly eaten by feral species.