生态学报
生態學報
생태학보
ACTA ECOLOGICA SINICA
2007年
10期
3993-4001
,共9页
鸟类群落%外来种%树林%树林种类%泛生境种类%香港
鳥類群落%外來種%樹林%樹林種類%汎生境種類%香港
조류군락%외래충%수림%수림충류%범생경충류%향항
bird community%exotic species%forest%forest specialists%habitat generalists%Hong Kong
观察了香港最大的大埔滘天然次生林内鸟类群落结构在10a间的变化.用t檢验比较了1993～1995年和 2003～2005年间的10种数量最高的鸟类的密度变化.所有的泛生境留鸟种类的密度均呈显著减少.两种树林种类的密度有显著増加,其中一种是本土种,另一种是外来种.香港树林鸟类群落的变化趋势主要受到两个因素的影响,包括缺少有树林种类鸟居住的树林,和外来种的入侵.
觀察瞭香港最大的大埔滘天然次生林內鳥類群落結構在10a間的變化.用t檢驗比較瞭1993～1995年和 2003～2005年間的10種數量最高的鳥類的密度變化.所有的汎生境留鳥種類的密度均呈顯著減少.兩種樹林種類的密度有顯著増加,其中一種是本土種,另一種是外來種.香港樹林鳥類群落的變化趨勢主要受到兩箇因素的影響,包括缺少有樹林種類鳥居住的樹林,和外來種的入侵.
관찰료향항최대적대포공천연차생림내조류군락결구재10a간적변화.용t검험비교료1993～1995년화 2003～2005년간적10충수량최고적조류적밀도변화.소유적범생경류조충류적밀도균정현저감소.량충수림충류적밀도유현저증가,기중일충시본토충,령일충시외래충.향항수림조류군락적변화추세주요수도량개인소적영향,포괄결소유수림충류조거주적수림,화외래충적입침.
The changes in the bird community structure of the largest natural secondary forest of Hong Kong over 10 years were investigated. Densities of the 10 most abundant species in 1993-1995 and 2003-2005 were compared using t-test. All resident habitat generalists showed significant decline in densities. Two forest specialists showed significant increase in densities, one is native and the other is exotic species. The trend of change of forest bird community of Hong Kong is mainly related to the absence of nearby forests that could act as "source" of forest dependent species to colonize the local secondary forests, and the invasion of exotic species.
