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
abscessed teeth
adamellite
administer relief
almas
aul wan
barytons
Batu Pulai, Sungai
be skilled at
beef tongues
borefest
cancer pathophysiology
carotid arch
catch a disease
centrifugal pendulum
civitated
country of residence
cromoglycate
decision support system - DSS
dial - up access
down price
ekalead
electronic pick up
emoia atrocostata
epithallus
fairy circles
feel your way
ferroelectric non-volatile memory
final working drawings
firedamp migration
go on errands
gurdfish
hemicontinuous operator
herborises
honeycomb radiator
incidence point
indolent
internal cylindrical gauge
IPG
japann
judicial separation
jump out of skin
Karkar I.
kissins
koat
la charite
Leontopolis
ligg. intercuneiformia plantaria
light repeater
linkage analysis
location variable type
longspur
magnetoresistances
marine electric power station
marine energy resource
marine refraction seismic survey
master scheduler
mercuric lactate
mercury ballast of gyrocompass
methylal resin
meyers
michelman
Molotor cocktail
monologists
multi-valued displacement
multistage scrubber
nit-pickers
Nocardia actinoides
nonfashion
nonintersecting lines
observance of good seamanship
orbifolding
ordered scattering
parental involvement
plancks
plite
pneutronic ammeter
polyether diols
purchase of goods
radial inlet
readily available
receiver operating characteristics curve
regentess
Retina Display
rinsed-out
Routh array table
Sambang
satellisation
saturn-day
sawhney
scrikes
seam-welding equipment
self compatible
semen diluter
semianaerobic condition
Sid Caesar
sphagna
subsurface burst
superhigh frequency
talk down to
tidly
unheal
xenocrystal