Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/30602
標題: 估計昆蟲種類數之調查與理論研究
The Survey and Theoretical Study on the Estimating of the Number of Insect Species
作者: Huang, YuBing
黃玉冰
關鍵字: The number of insects species
昆蟲種數
出版社: 昆蟲學系
摘要: The problem of how to estimate the number of species in an area is concerned by ecologists. The number of species and coverage in the initial survey will be used to predict the expected number of new species in the next survey. When the coverage of the initial survey is high, the probability of finding new species in the second survey is low. The species-accumulations curve is a useful criterion in deciding when to stop the field survey.
一地區中生物種數的測定一直是生態學家所探討的議題,利用第一次取樣所得之種數及樣本涵蓋率,來預測再次取樣時,可能取到新種的機率。同一地區之物種是有限的,當第一次取樣之樣本涵蓋率高時,則再次發現新種之機率較低。在連續取樣多次後,發現新種的機率則會逐漸降低,若將每次發現的新種累計作圖,則顯示累計新種增加的速率漸趨平緩。此可作為決定停止田間取樣的標準。
URI: http://hdl.handle.net/11455/30602
Appears in Collections:昆蟲學系

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