Question

a species is considered introduced when its transport into an area outside of its native range is human mediated. introductions by humans may be either intentional or accidental. in the u.s. many economically important species have successfully been introduced and managed: they have not become invasive species. identify the statement that is not correct regarding the positive effects of introduced species.
a all livestock species except the american bison and the turkey are introduced species to north america.
b thomas austin, a british landowner had rabbits released on his estate in victoria, australia because he missed hunting them.
c species, such as the wolf, are reintroduced because it has become locally endangered or extinct and this is done in the interest of conservation.
d many plants, such as the norway maple and the japanese maple, have been introduced with the intent of aesthetically improving public recreation areas or private properties.

Explanation:

• Option A: Livestock like cattle, sheep, etc., were introduced to North America. American bison is native and turkey has a complex history but is not an introduced livestock in the traditional sense for most of North America's livestock context.
• Option B: Thomas Austin's action of releasing rabbits in Australia is a well - known example of an intentional introduction (for hunting), but rabbits became a major invasive problem. However, the statement itself is factually correct about the introduction intent.
• Option C: Reintroduction of species like wolves for conservation (e.g., to restore ecological balance) is a positive aspect of introductions.
• Option D: Introduction of ornamental plants like Norway maple and Japanese maple for aesthetic purposes in public and private areas is a positive use of introduced species.

Answer:

B. Thomas Austin, a British landowner had rabbits released on his estate in Victoria, Australia because he missed hunting them.