評論
打印
The other three bushes were left untouched and monitored as controls.
留下其他三處灌木以作為對照。
The team followed up by counting ants periodically on specific sections of the coffee bushes during the days that followed.
之后團隊定期計算咖啡灌木中某一特定部分的螞蟻數(shù)量
To decide whether the newly established string highways were indeed granting protection,
為了確定新建立的線高速確實提供了保護作用，
three days after building the connections Dr Jimenez-Soto and Dr Morris
在建立連接三天后，Jimenez-Soto博士和Morris博士
attached white cards bearing ten dead adult female borer beetles to the trunks of all the coffee bushes in the research sites.
將帶有十只成年雌性死蟲的白色卡片附在了所有被研究咖啡灌木的樹枝上。
They monitored these cards for half an hour, noting ant activity on them, and also recording how many beetles were removed during that period.
他們對這些卡片進行了半小時監(jiān)控，在此期間內(nèi)，他們記錄螞蟻在此的活動，以及被移除甲蟲的數(shù)量。
The string highways proved popular with the ants. Three-quarters of them turned into ant trails,
事實證明線高速很受螞蟻的歡迎。三分之一的線高速都變成了螞蟻的路徑，
and at least some were used in this way in every one of the study sites.
并且在每個試驗址中，至少有一些被以這種方式使用。
Presumably as a consequence, ant activity on bushes connected by strings to cuaniquil trees more than doubled,
大概率結(jié)果是，和cuaniquil樹連接后，螞蟻在灌木中的活動翻倍，
while that on unconnected neighbours saw no statistically significant change.
而未被連接的灌木在統(tǒng)計上沒有明顯變化。
This extra activity resulted in more beetle-scavenging.
這種額外的活動導(dǎo)致更多的甲蟲被清除。
Coffee bushes connected by string to a cuaniquil had an average of three of the carded insects removed by the ants during the 30-minute window,
在30分鐘時間內(nèi)，用線將咖啡灌木和一棵cuaniquil樹相連，平均有三只死蟲被螞蟻拖走，
triple the rate for unconnected bushes. Dead beetles on cards are clearly easier prey than live ones hidden in coffee berries.
是未連接灌木比率的三倍。卡片上的死甲蟲顯然比咖啡漿果中藏著的活蟲更好捕食。
Nevertheless, this is an encouraging result for plantation owners.
然而，這對種植園主而言是個鼓舞人心的結(jié)果。
If further experiments back these results up
如果后續(xù)試驗?zāi)軌驗檫@一結(jié)果提供支持，
it may be that the coffee-borer problem can be alleviated by a combination of planting the right sorts of shade trees and the wise deployment of some balls of string.
那么通過種植正確的遮蔭樹種并合理布局一些線球，咖啡蛀蟲的問題就能得到緩解。
譯文由可可原創(chuàng)，僅供學(xué)習(xí)交流使用，未經(jīng)許可請勿轉(zhuǎn)載。
