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Invasive Species in Hawaii
invasive species in Hawaii
Peacock grouper
mongoose
Type of animal- Mammal
Origin - Europe; introduced to kill off the large rat population in the sugar cane fields.
Extent - Throughout Hawaii
introduced in
the 1950s
to increase hawaii's
fishing industry
Rosy Wolfsnail
Type of aminal - snail
origin - Latin america;
introduced in 1950's to control
introduced african snails, an agricultural
pest.
Extent - found throughout the hawaiian islands.
Damage - Instead of controlling African snails,
the Rosy Wolfsnail has devasted Hawaii's native
snails, eliminating up to half of the 800 endemic
species & endangering others.
Strawberry Guava
Mongoose
Type - Shrub/ small tree
Origin - Originally introduced
in the early 1800's for it's
edible fruit. It escaped cultivation.
Extent - Occurs on all six largest
Hawaiian islands.
Damage - Poses a major threat to Hawaii's
rare endemic flora & fauna.
Damage - Diurnal so fails to control nocturnal rats; harms the ground nesting birds such as the Nene goose to stay alive.
What is an invasive species?
Invasive species are plants, animals, or other organisms that are introduced to a given area outside their original range and cause harm in their new home. Since they have no natural enemies to limit reproduction, they usually spread rampantly. Invasive species are recognized as one of the leading threats to biodiversity and impose enormous costs to agriculture, forestry, fisheries, and other human enterprises, as well as human health.
Fire Tree
Fire Tree
Damage: Serious threat to native plants on young volcanic sites, lowland forests, and shrublands, where it forms dense monocultural stands.
Type of Invasive species: Shrub/small tree
Origin: Azores, Madeira, and the Canary Islands; introduced in the late 1800s as an ornamental of for firewood.
Extent: Occurs on nearly all of the Major Hawaiian Islands, covering more than 100,000 acres