Google-Style Rankings for Ecosystems

Since so many species in a food web are interconnected,
the demise of a one can mean extinction for several others that depend on it for food.
Thanks to things like climate change and habitat destruction,
this "bottom-up extinction" has ecologists scrambling to save key species.
Stefano Allesino says they may just want to Google the problem.

Speaking on August 4th at the Ecological Society of America's annual conference,
Allesino outlined a new way to rank the species of an ecosystem.
Google uses a complicated algorithm to rank web pages that best match a query.
Basically, a single webpage ranks low,
but rises in importance if a handful of other pages link to it.
The highest ranked sites have thousands of these well-connected pages linked to them.

Inspired by this system, Allesino's formula gives importance to a species if it supplies food to another.
And, if that species serves as food for several organisms,
it climbs up the rankings.
Higher ranked species, says Allesino, should become the focus of conservation efforts.
And that means there's finally a perk to being the foundation of the food web.





perk n.【口】津貼;額外補貼 =perquisite

大意:
生物學家想傚法Google用來排名網站的方法
來排名生物在環境中的重要性

大意：
辣椒在蟲多的地方會比較辣，
因為要保護辣椒不被蟲吃。

Pepper Heat Battles Bugs

Some peppers have a mild, fresh flavor. But others burn your lips and leave a lingering, numbing kick. If you enjoy that tingling thrill, you might want to say thanks. But not to the peppers themselves—to bugs. Peppers are tasty so they'll be eaten and have their seeds dispersed. But the snacker has to be the right creature—which the peppers need to be birds. Some insects also like to munch peppers, and they may puncture the skin. The wound leaves an opening for a microbial fungus. The fungus wriggles inside and snacks on the seeds, destroying them.

Researchers from the U.S. and Bolivia tested whether a pepper's heat offers it protection. They published August 11th in the Proceedings of the National Academy of Sciences. First, they collected chilies from seven populations of the same pepper species over a thousand-mile area. Then they counted insect-induced scars and tested pepper heat. In regions with lots of insects, and a greater risk of death by microbe, plants tended to be much hotter. And the hot chemicals, called capsaicinonids, slow microbial growth. Birds can't sense capsaicin. So the hot peppers kill bugs, and still attract birds. And many humans, too.

生字
wriggle  v.蠕動;扭動;蜿蜒而行

我家有隻老狗
他的名字叫做皮皮
據我媽媽說他是在民國82年的時候來我家的
現在15歲多了

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或者 你也可以到網頁版去填資料




統計圖表   [可以往右拉，看數據]
 

或者你也可到網頁版去填資料

 


統計圖表  [可以往右拉，看數據]
 

8/3 第一次考托福
reading 考起來很不順手

這篇是來檢討為什麼會考不順手的原因

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阿阿 沒考好

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自己總是有一段時期會，想念書確又念下去的時期。

唉阿~~!!

完全沒法熱血起來，苦惱。

今天打電話去問問一個朋友，Small Seven，最近過的怎樣

Small Seven 是我當兵認識的一個好朋友，
Small Seven 不只是宅，而且還是宅到爆表

最近都一直下雨，只能待在家裡念書，

快悶死人了

其實一開始我也不知道坐在我身邊的先生(..老頭)是個怎樣的人

我家的小狗狗長大了~~

咕嚕咕嚕的小時候，一副呆呆的樣子

XD...手又扭到了

有時候一晃神就key錯了呢

如果發現圖上的字或是檔名有錯誤的地方

請留言在這邊唷

我會把更新後的圖上傳


(大致上我圖都已經校正過4、5遍了，
不過還是有一小部分的疏失)

由於2013年，Pixnet改版，把profile中的自我介紹全部弄不見了，

於是只好手動把原有的內容設在這邊：

前言
雖然已經考完GRE了
但覺得有點小遺憾
是什麼遺憾呢

我想是--我覺得很少資源是寫給初學者的
其實我剛上GRE板(PTT)的時候，
連GRE要考什麼都不知道
看到一大堆的名詞，
ex.紅寶??藍寶?? 機考?? 更不知道那是什麼東西
也不知道要從何問起
也不知道該怎麼準備