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Week Eight
第8周
晚练
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In a desperate effort to save a seabird species in Hawaii from rising ocean waters,scientists are moving
chicks to a new island hundreds of miles away.
The Tristram's storm petrels are on northeastern Hawaii's Tern Island,which is just 1.8 meters above sea
level.The relocation of about 40 chicks to artificial holes more than 805 kilometers away on Oahu could offer
new hope.The species is considered vulnerable to extinction,and the goal is for the young petrels return to their
new home when old enough to breed.
"Tern Island is washing away,"said biologist Eric VanderWerf."Climate change is causing a greater need
for this-for taking a species outside its known historical range."
One plan now being considered by U.S.wildlife officials concerns birds native to Guam,where kingfishers
were reduced by brown tree snakes accidentally brought to the island around 1950 on military cargo ships.
The last 29 wild Guam kingfishers were captured in the 1980s and have been bred in captivity to buy time.
Under an undecided proposal,nine kingfishers would be released back into the wild beginning this year on Pal-
myra Island,more than 5,800 kilometers away.
If a relocation is successful,the kingfishers would become one of the few species ever upgraded from"ex-
tinct in the wild"to"critically endangered".
The hope is that the Guam kingfisher will eventually be returned to their native island,if the tree snake is
controlled,said Erica Royer,a bird expert.This kind of intensive management is necessary for us to have a rea-
sonable shot at holding onto some species,"said Don Lyons.
Scientist Mark Schwartz said he was initially skeptical of moving species for conservation when biologists
began discussing the idea about a decade ago.The rapid rate of extinctions more recently has him thinking that
sitting idle could be an expensive error.Unprecedented fires three years ago likely destroyed the last habitats of
some endangered species.He said,"We've already playe