时间:2019-01-28 作者:英语课 分类:健康与环境


英语课

By Cynthia Kirk
ENVIRONMENT REPORT -May 31, 2002: Coqui Frogs Invade Hawaii


This is the VOA Special English ENVIRONMENT REPORT.


Experts say the American state of Hawaii has been invaded by a small frog called the coqui (ko-KEE). There may
be millions of the small frogs in Hawaii. However, they do not belong there. They are normally found in the
Caribbean island of Puerto Rico and in the southeastern United States. The coqui frogs are harming Hawaii’s


environment. And the extremely loud noise they make is causing problems for Hawaiian citizens and visitors.



The coqui invaders 1 arrived in Hawaii about ten years ago. They were believed to have been
brought in accidentally in shipments of plants from Puerto Rico or Florida. Their numbers have
sharply increased. They have quickly spread around the Hawaiian Islands hidden in plants.


The coqui is a brown frog about five centimeters long. During the day, the frogs hide in wet
protected areas, such as under plant leaves. At night, the frogs move onto trees to feed, call to


females and mate.


In their native Puerto Rico, local people celebrate coqui frogs. But in Hawaii, the foreign frog has been
condemned 2 as a harmful animal.


The coqui frogs are a major threat to Hawaii’s environmental system. The frogs eat thousands of insects every
night. These insects are important for the reproduction of plants. The insects also are important food for
Hawaii ’s native, rare birds.


The frogs also are affecting the tourism industry in Hawaii. Increasing numbers of hotels, visitors and local
people have protested about the loud calls made by male coqui frogs to female frogs. At night, the noise often
makes it difficult for people to sleep. The mating call of the male coqui sounds like: “Ko-Kee! Ko-Kee!

That
is how they got their name.


The frogs do not have any natural enemies in Hawaii to reduce their population size. The warm weather permits
them to lay eggs all year long.There are many efforts in Hawaii designed to stop the spread of the coqui. It is a
crime to transport, sell or release the frogs there.


The Hawaiian Department of Agriculture is trying to find an effective chemical that can be safely used to kill the
frogs. For now, the frogs may only be captured by hand. The Hawaiian Department of Agriculture says the
greatest threat to the economy and environment of the state is from harmful invasive species, like the coqui.


This VOA Special English ENVIRONMENT REPORT was written by Cynthia Kirk.



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入侵者,侵略者,侵入物( invader的名词复数 )
  • They prepared to repel the invaders. 他们准备赶走侵略军。
  • The family has traced its ancestry to the Norman invaders. 这个家族将自己的世系追溯到诺曼征服者。
学英语单词
alternacy
annual vessel
Askoy
automatic peptide sequencer
binos
bloxham
cadmium tungstate
channel op
class Gasteromycetes
coal deposits
compliest
conductive
cross pulse
dark-adapted eye
debt proportion
dideoxykanamycin
draft condition
early reproductive stage
emperiment
endogenetic texture
entomography
ethylenediamine tartrate
eucommia bark
Extended Industry Standard Architecture
Fifish
finishing hackle
forward cofferdam
fund for redemption of treasury bills
gang ladder
geisha balls
gilder
gloeosporium castanicolum ellis et everhart
GLYMERIDAE
Golding, Louis
gressive
guarison
heirmologia
Hilieidum
Hsa Mong Hkam
hydroxybenzene
imiprothrin
Imlan
instructional medium
jasim
jolt molding machine with turnover plate
kiln gas
lewke
love
main drive gear bearing oil slinger
malignant trophoblastic tumor
memory exchanger
mental block
minishow
monnin
National Portrait Gallery
nondynamic
nosoparasite
oil gauge
optics of retinoscopy
optimum magnetic biasing
ortovoxes
paleobioprovince
parascutulis (pl.parascutules)
passive hyperemia
peptide deformylase
pityriasis alba
platypnea
poison element
poliglecaprone
port of departure
posterior preputial muscles
power generation module
pressure compensating device
probability table
pupillatus
rectangular pyramid
sand moisture controlling system
second-order susceptibility
self-retrieval
solleret
sporothrix
squirrel-shrew
suboccipito-bregmatic
surface contraction
susanville
sussex chicken
talk like a Dutch uncle
temperature of fusion
time limit switch
tower gas cooler
transformed flow net
trichloroacetyl bromide
tricholomopsis edodes
unacquittable
urban-limit
Valsjön
Vikersund
volatile markets
voluntary botnet
with two arms hanging on both sides
Wolfgang Pauli
xeroll