科普專欄–薯不揀單 - 三十秒科學–世界上究竟是人多還是雀鳥多？

在整個世界上，究竟人類的總數目較多，還是雀鳥的總數目比較多呢?521Please respect copyright.ＰＥＮＡＮＡjeeUVzdiIw
521Please respect copyright.ＰＥＮＡＮＡXC4E1zyX3P
521Please respect copyright.ＰＥＮＡＮＡ7kJOGhINbF
521Please respect copyright.ＰＥＮＡＮＡ3vyI2gXgDD
(圖2)有科學家綜合現有的資料，根據已知9700種雀鳥的地域分佈、習性及互相的關係，利用電腦程式推斷出世界的總雀鳥數目。521Please respect copyright.ＰＥＮＡＮＡnaFyDRI7ND
521Please respect copyright.ＰＥＮＡＮＡVDeucFPSHD
521Please respect copyright.ＰＥＮＡＮＡ3LIgKUesUX
521Please respect copyright.ＰＥＮＡＮＡA5CziVBHJq
(圖3)根據數學模型統計，雀鳥在地球總數量的中位數為500億，亦即是說平均每一個人口就有六隻雀仔，所以蔡SIR參與雀仔按摩亦只是環境所迫所致，在數學統計上實屬無可奈何，並非存心破壞香港警隊的名聲。521Please respect copyright.ＰＥＮＡＮＡDh4dLQEn6U
521Please respect copyright.ＰＥＮＡＮＡyNxh1Hkp1l
521Please respect copyright.ＰＥＮＡＮＡgUIIq7QA7m
至於數量排名第一的雀鳥，則為16億的家麻雀，跟隨其後的為13億的歐洲椋鳥及12億的環嘴鷗，可見蔡SIR遇上麻雀尤其是從越南來的機率可謂甚高。521Please respect copyright.ＰＥＮＡＮＡFniihBVOo0
521Please respect copyright.ＰＥＮＡＮＡsjP48O96xd
雀鳥數目排名excel:https://www.pnas.org/highwire/filestream/984963/field_highwire_adjunct_files/1/pnas.2023170118.sd01.xlsx521Please respect copyright.ＰＥＮＡＮＡ3Ddk8rPXvX
521Please respect copyright.ＰＥＮＡＮＡasy0BiKIBR
521Please respect copyright.ＰＥＮＡＮＡxVNcTcuP3H
Ref1:https://www.pnas.org/content/118/21/e2023170118

521Please respect copyright.ＰＥＮＡＮＡ6LEAicmjaO

ns216.73.216.215da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章