Invasive species are any non native organism who are introduced to an unknown ecosystem and likely will cause harm to the ecosystem, the economy, and human health.
The species spread out often due to unintentional human activities by traveling by ship, hiding inside wood products, and the exotic pet trade. Ornamental plants can also pose as a risk to the ecosystem by competing with other native plants.
Invasive species are a major threat because native species cannot evolved or adapt fast to a new species often being out competed or lowering the population of native species. Threats include new animals that prey on small native prey like feral cats, competing with native animals for natural resources like goats rivaling the Galapagos tortoises for food, and carrying diseases like domestic cows introducing unknown diseases to bison.
Indirect threats include decreasing biodiversity, changing environmental conditions, and affecting the food web.
The species spread out often due to unintentional human activities by traveling by ship, hiding inside wood products, and the exotic pet trade. Ornamental plants can also pose as a risk to the ecosystem by competing with other native plants.
Invasive species are a major threat because native species cannot evolved or adapt fast to a new species often being out competed or lowering the population of native species. Threats include new animals that prey on small native prey like feral cats, competing with native animals for natural resources like goats rivaling the Galapagos tortoises for food, and carrying diseases like domestic cows introducing unknown diseases to bison.
Indirect threats include decreasing biodiversity, changing environmental conditions, and affecting the food web.
INVASIVE SPECIES STATS
Feral cats covered up 99.8% of Australia with a population of about 6.3 million meaning there is one cat for every 4 square kilometers
Feral cats are thought to cause about 20 native species of Australia to become extinct
Over 80% of the worlds islands are invaded by nonnative rodents
In the last 400 years, invasive species contributed to 40% of the animal extinctions
In the British timber industry, £10 million were to pay for introduced squirrel damage to beech, sycamore, and oak woodland
Feral cats are thought to cause about 20 native species of Australia to become extinct
Over 80% of the worlds islands are invaded by nonnative rodents
In the last 400 years, invasive species contributed to 40% of the animal extinctions
In the British timber industry, £10 million were to pay for introduced squirrel damage to beech, sycamore, and oak woodland