Coqui frog (Eleutherodactylus coqui)
Hawaii Injurious Wildlife (Exhibit 5, Chapter 13-124)
Prevention and Control Category:
Coqui are currently a rapid response species for the Hawaii Department of Agriculture (HDOA) and the Island Invasive Species Committees (ISCs) for all islands.
The coqui is a small tree frog slightly larger than 2.5 cm (1 in) long. Round body shape. Coloration is variable from light yellow to dark brown. Broad rounded snout with obvious toe pads. Distinctive “ko-kee” vocalization. Found on ground level and in trees and bushes, but calls primarily from 1-2m (3-7 feet). Listen to the distinctive coqui call: https://soundcloud.com/early-detection/sets/coqui-greenhouse-frog-vocalizations and https://www.youtube.com/playlist?list=PLCCC715BD4F160D0C
No natural predators to keep populations in check (and no natural competitors), populations have reached 55,000 frogs per hectare in some Hawaii populations (24,000 frogs per hectare in Puerto Rico)
Eat huge quantities of insects, removing insects from forest floor to treetops.
Loss of insect services such as pollination
Disrupt the balance of vulnerable native ecosystems
Potential food source for snakes if they were to arrive
Loud, incessant and annoying call from dusk until dawn
Adverse economic impacts on tourism
Decreased export plant sales
Disclosure requirement for real estate transactions, has resulted in decreased property values in some locations
Coqui frogs do not travel very far on their own, but when given the chance to hop on a nursery plant, flowers, or vehicle, they can quickly spread. Most coqui arrive on new islands through infested nursery plants and flowers. Intra-island, coqui travel by the movement of plants by humans and may hitch a ride on vehicles. The coqui frog is currently widespread on the island of Hawaiʻi, but is only known to be in a few locations on the island of Maui, Kauaʻi, and Oʻahu. They are not present on Molokaʻi or Lanaʻi. If you see them anywhere else on Maui, Molokaʻi, Lanaʻi, Oʻahu or Kauaʻi- let someone know!
What you can do
If you see this species, call 643-PEST
Greenhouse frog (Eleutherodactylus planirostris):
The greenhouse frog is widespread throughout Hawaii. This small tree frog is usually slightly smaller than 2.5 cm (1 in). Usually copper colored with WARTY TEXTURED SKIN. Narrower snout and less distinct toepads than the coqui frog. CRICKET-LIKE VOCALIZATION. Found only on the ground.