时间:2019-01-08 作者:英语课 分类:Scientific American(八)月


英语课

This is Scentific American's 60-Second Science, I'm Steve Mirsky, got a minute?


At Point Reyes National Seashore in Marin County, California, a plant called Tidestrom’s lupine is holding on for dear life. Its survival has been threatened by the appearance of another plant, an invasive species called European beachgrass. So, does the beachgrass simply outcompete the lupines for land and light? Not at all, according to researchers at Washington University in St. Louis.


Tiny deer mice have a taste for the seeds of the lupines. These critters would ordinarily think twice about approaching the plants. Because exposed out on the sand, they’re easy pickings for birds interested in a rodent 1 repast. But the beachgrass provides excellent cover. The mice use the grass to get close enough to pilfer 2 seeds before any hungry birds pilfer the mice. The research appears in the August issue of the journal Ecology.


The information may be useful for a proposed dune 3 restoration project. And the unexpected consequences of the invading species bring to mind this well-known comment by ecologist Aldo Leopold: “To keep every cog and wheel is the first precaution of intelligent tinkering.”


Thanks for the minute. For Scientific American's 60-Second Science, I'm Steve Mirsky. 

 



n.啮齿动物;adj.啮齿目的
  • When there is a full moon,this nocturnal rodent is careful to stay in its burrow.月圆之夜,这种夜间活动的啮齿类动物会小心地呆在地洞里不出来。
  • This small rodent can scoop out a long,narrow tunnel in a very short time.这种小啮齿动物能在很短的时间里挖出一条又长又窄的地道来。
v.盗,偷,窃
  • Staff were pilfering behind the bar.店员在柜台后有些小偷小摸的行为。
  • When food stores close,they go to work,pilfering food for resale on the black market.食品店关门后,他们就行动起来,偷食品拿到黑市上出售。
n.(由风吹积而成的)沙丘
  • The sand massed to form a dune.沙积集起来成了沙丘。
  • Cute Jim sat on the dune eating a prune in June.可爱的吉姆在六月天坐在沙丘上吃着话梅。
学英语单词
activized
adapter bearing
adaptive distributed minimal spanning tree algorithm
akoka
alimentary lipemia
amnioss
anilidic
anxiety-ridden
associationism
austrian airlines
back labors
Bad Schallerbach
beginner
biomethanation
blanket gas analysis
borrowest
bulgren
cat (children's apperception test)
clk.
cock-and-pie
comprime
crash out
cross-country flight
crystal clathrate
derivative rights
dirty poll
Do as you're bidden and you'll never bear blame.
down-draft manifold
dressed to the nines
El Salado, R.
elastic limit in shear
Elatostema subcuspidatum
elbe (labe)
electrical anemometer
equitative
feedthrough capacitor
fertilizer-distributor
field ampere-turn
fight to a finish
flauntily
flexibility matrix
floating thumb
fogden
fourth stage
Gornovodnoye
harping
hiked up
hitch roll
hypertypic
inamoratos
Indigofera rigioclada
industrial-instrument
intestine loop
iris scan
Kaliningradskaya Oblast'
left dorso-posterior position
loss due to anchorage temperature difference
ludent
marine centrifugal type refrigerating compressor unit
metallibure
milch goat
neisseria gonorrhoeaes
nonhierarchically
Nymphula
objective cap
office speaker
oozier
other multimode fiber optic cable
pajamas
panama, gulf of
personal allowances
podheads
Port Noarlunga
quod erat faciendum
radiator thermometer
rallentando
re-furbish
rhinoneurosis
river inversion
rotary expansion engine
sagaciate
sand pike
Saxifraga triaristulata
smooth-bore
Solana
soloman r.
spalike
spiking maul
stationary-welding machine
strongbark
swirl defect
teleprinter receiver
thiamins
Third Lateran Council
time interval analyser
ultrarunner
unrecorded income
unwashable
vapour transport
variable structure computer
waggonwright
yellow paper test