Question

PLEASE HELP !! Starlings are birds that were brought into the United States from Europe for breeding purposes. Their numbers have increased to such an extent that they have dislodged native birds, caused crop damage. They also carry swine diseases. What role do they play in the ecosystems of the United States?
A. Dominant species
B. Keystone species
C. Invasive species

Answer 1

ask you big retriceboobs. Cover them up

Answer 2

big retrice

Answer 3

wtf big a$s

Answer 4

if you got nothing nice to say then dont even bother commenting .

Answer 5

ok ;)

Answer 6

lmao ^

Answer 7

Invasive species, also called invasive exotics or simply exotics, is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats, with several definitions.

The first definition, the most used, applies to introduced species (also called "non-indigenous" or "non-native") that adversely affect the habitats and bioregions they invade economically, environmentally, and/or ecologically. Such invasive species may be either plants or animals and may disrupt by dominating a region, wilderness areas, particular habitats, or wildland-urban interface land from loss of natural controls (such as predators or herbivores). This includes non-native invasive plant species labeled as exotic pest plants and invasive exotics growing in native plant communities.[1] It has been used in this sense by government organizations[2][3] as well as conservation groups such as the International Union for Conservation of Nature (IUCN) and the California Native Plant Society.[4] The European Union defines "Invasive Alien Species" as those that are, firstly, outside their natural distribution area, and secondly, threaten biological diversity.[5] It is also used by land managers, botanists, researchers, horticulturalists, conservationists, and the public for noxious weeds.[6] The kudzu vine (Pueraria lobata), Andean Pampas grass (Cortaderia jubata), and yellow starthistle (Centaurea solstitialis) are example

Answer 8

By using process of elimination, Keystone species is out. Dominant species is too if you really think about it.

The only one left is Invasive, and it makes complete sense. The Starlings were brought to a foreign land from elsewhere, and now cause more harm than good.

Answer 9

the answer is C. Invasive species