首页
登录
职称英语
Humans aren’t the only ones to take a summer holiday, a new study has revealed.
Humans aren’t the only ones to take a summer holiday, a new study has revealed.
游客
2025-06-18
24
管理
问题
Humans aren’t the only ones to take a summer holiday, a new study has revealed.
Creepy-crawlies, flies, and plants also join the vacation rush by hitching long-haul rides inside airline baggage.
The research reveals that—like people in many countries—June, July, and August are the peak months for long-distance travel.
Jet-Setting Beetles
Previous studies have shown that international flights are a significant factor in unwelcome insect invasion. Some 73 percent of recorded pest interceptions in the U.S., in fact, occur at airports.
Curious to determine when insects pack their bags and where the bugs are most likely to go, Andrew Tatem and Simon Hay of the University of Oxford in England studied global flight patterns for the 12-month period from May 1,2005 to April 30,2006.
Pest travel between far-flung locations is more likely when the weather is similar in both regions, making it easy for the pests to settle into their new home.
The researchers used rainfall, temperature, and humidity data from each region to work out which places linked by the global flight network had the most similar climates at various times of the year.
"Hawaii, with its moderate year-round climate, is a hot spot for pest invasions," Tatem said. "It is linked to a similar climate in Central America in April, Asia in July, and the Caribbean in October."
In general, though, June, July, and August are the peak months for insect travel.
"There are more airports in the Northern Hemisphere, and the major Southern Hemisphere airports tend to be closer to the Equator," Tatem said. "The June-to- August period stood out as the time when, overall, the busiest flight routes connect geographically distant but climatically similar locations." [br] According to the article, what is the main cause of insect invasions?
选项
A、Changing wind patterns.
B、Unusually hot temperatures.
C、International flights.
D、Changes in agricultural chemicals.
答案
C
解析
转载请注明原文地址:http://tihaiku.com/zcyy/4123469.html
相关试题推荐
IntercityBusCompanywillbeproviding______busserviceforholidaytravelersn
Theholidayseason’sfirstmajorshoppingdaygotofftoarelativelyflatstar
Inorderto_____cutting-edgestemcellbreak-throughstohumans,theyshouldbe
I_____atasummercampinNewYorklastsummerandenjoyedsupervisingagroupo
Humansaren’ttheonlyonestotakeasummerholiday,anewstudyhasrevealed.
Humansaren’ttheonlyonestotakeasummerholiday,anewstudyhasrevealed.
AstheHolidayswinddown,manypeoplewillbe(147)whattodowiththeirChris
OnlineshopperscountonfreeshippingExpectmorepromotionsthisholidayseaso
OnlineshopperscountonfreeshippingExpectmorepromotionsthisholidayseaso
OnlineshopperscountonfreeshippingExpectmorepromotionsthisholidayseaso
随机试题
America’srecenthistoryhasbeenapersistenttilttotheWest—ofpeople,i
Wikipedia’sTrembling[A]Wikipediaisdying!Wikipediai
Whydidshetakeupjournalism?[br][originaltext]M:TinaWhite,somepeopled
SleepSleepispartofaperson’sdailyacti
注:图片选自上海科学技术出版社初中物理八年级全一册48页
某教科书必修(四)第二单元的选文为《柳永词两首》《苏轼词两首》《辛弃疾词两首》和
合同因违约而被单方面解除的,合同中的违约金条款( )。A、也随之失效 B、并不
通常情况下,直接影响利率水平的主要因素有()。A.政治制度 B.平均利润
企业财务比率分析中,反映盈利能力的指标有( )。(2015真题) A.
边坡挂网锚喷(含锚杆、挂网)防护时,喷层厚度应满足设计要求。当喷层厚度()。A
最新回复
(
0
)