頁籤選單縮合
題 名 | 雲林及嘉義地區2004~2008年期間農田野鼠棲群變動及種類組成=The Population Dynamics and Species Composition of Field Rodents in Yunlin and Chiayi Area (2004~2008) |
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作 者 | 陳昇寬; 黃榮作; | 書刊名 | 臺南區農業改良場研究彙報 |
卷 期 | 59 2012.06[民101.06] |
頁 次 | 頁36-44 |
分類號 | 433.2 |
關鍵詞 | 野鼠; 棲群密度; 種類組成; Field rodents; Population density; Species composition; |
語 文 | 中文(Chinese) |
中文摘要 | 雲林縣2004-2007年每年防除前野鼠之棲群密度變化不大,防除後之密度則呈上升之趨勢,但2008年防除前後之密度均有驟降之現象。嘉義縣2004-2007年每年防除前後之密度均呈上升之趨勢,於2008年則稍微下降。野鼠族群之平均增殖倍數在雲林縣為4.7倍,嘉義縣為5.5倍。兩縣之防除率均呈下降之趨勢,五年平均防除率分別為雲林縣75.9%,嘉義縣76.3%。捕獲之野鼠種類主要為小黃腹鼠、赤背條鼠、鬼鼠及月鼠,而溝鼠僅出現一次。小黃腹鼠及赤背條鼠為主要鼠種,在防除前後所佔之比例均較其他鼠種為高,小黃腹鼠所佔比例為22-72%,赤背條鼠所佔比例為12-70%,防除後小黃腹鼠之比例普遍較赤背條鼠為高。鬼鼠之田間棲群呈穩定狀態,且防除後之比例有升高之趨勢。月鼠之田間棲群於防除後較不穩定,且平均所佔之比例降得更低。 |
英文摘要 | The population density and species composition of field rodents were investigated between 2004-2008. In Yunlin county, the density before control was fairly stable and even increased mildly after control (from 2004-2007), but in 2008, the population dramatically decreased both before and after control. In Chiayi county, the population rose both before and after control between 2004-2007 while the density declined slightly in 2008. The multiple rate was 4.7 times in Yunlin and 5.5 times in Chiayi. The control efficiency decreased in both counties. The average control efficiency was 75.9% in Yunlin and 76.3% in Chiayi for 5 years. In terms of the species composition, the major species captured were Rattus losea, Apodemus agrarius, Bandicota indica, and Mus formosanus, while Rattus norvegicus was only trapped once. Rattus losea and Apodemus agrarius were dominant species and more individuals of these two species (Rattus losea 22-72%; Apodemus agrarius 12-70%) were found than the other species before and after the control. Rattus losea had a greater population than Apodemus agrarius after control. The overall population of Bandicota indica was very stable and the rate generally increased after control. Mus formosanus had a relative unstable population after the control and its population rate decreased greatly after control. |
本系統中英文摘要資訊取自各篇刊載內容。