 | | |
 |  | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | | |
 | |
Invasive Species
An exotic species
(or non-native) is a plant or animal that did not originate in the habitat
in which it is currently living. Exotic species have the potential to
become invasive. This means that they can compete for food, water, and
space better than native species. An invasive species can cause native
species to decline in population numbers, possibly leading to a habitat
that consists only of that invasive species.
Several exotic, invasive species threaten Havasu National Wildlife Refuge.
A few examples of invasive plant species that occur on the refuge include
salt cedar (Tamarisk spp.), giant cane (Arundo donax),
fountain grass (Pennisetum setaceum), and Russian thistle (Salsola
kali). Exotic animal species that occur on the refuge include burros
(Equus asinus),
feral hogs (Sus scrofa), bullfrogs (Rana catesbeiana),
and crayfish.
How is Havasu National Wildlife Refuge managing invasive species?
How do Invasive Species affect me?
