香港嘉道理农场次生林区碰撞诱捕网和黑光灯捕虫器采集所得鞘翅目甲虫多样性比较  

Diversity comparisons of beetles (Insecta: Coleoptera) between impact flight trap and ultraviolet light trap in the secondary forest at Kadoorie Farm, Hong Kong

作　　者：张兵兰[1] 张茵[1] 廖婕[1] GaryW.J.ADES 刘绍基 卢文华 

机构地区：[1]华南师范大学生物系 [2]嘉道理农场暨植物园 [3]渔农自然护理署 [4]The Conservation Agency,6 Swinburne Street,Jamestown,Rhode Island 02835,USA

出　　处：《生物多样性》2004年第3期301-311,共11页Biodiversity Science

摘　　要：本文根据1990-1995年在香港嘉道理农场次生林区采集的昆虫标本,首次分析了鞘翅目及其优势科的种类、数量和季节性变化,以及由碰撞诱捕网和黑光灯捕虫器采集所得甲虫在种类、数量和季节性上的差异。在13 260号标本中,已鉴定到科的有 13 253号,分属45科,231种。其中,朽木甲科(Alleculidae)、毛蕈甲科(Biphylli-dae)、丸甲科(Byrrhidae)、坚甲科(Colydiidae)、拟球甲科(Corylophidae)、隐食甲科(Cryptophagidae)、水缨甲科(HydroscaPhidae)、伪叶甲科(Lagriidae)、薪甲科(Lathridiidae)、泽甲科(Limnichidae)、黑蕈甲科(Zopheridae)等11个科为香港地区的首次报道,约占本次调查科总数的25％。分析表明:(1)该次生林区的鞘翅目甲虫以蛀本性为主。天牛科(Ceramhycidae)、瓢虫科(Coccinellidae)、象甲科(Curculionidae)、花蚤科(Mordellidae)、金龟甲科(Sca-abaeidae)、小蠹科(Scolytidae)等6科均为多样性较高(种类≥15或者个体数量≥200)的优势科。(2)鞘翅目个体数量季节性明显,每年自2月开始数量逐渐增加,6-7月为甲虫发生的高峰期,8月显著减少。各优势科甲虫的季节性也存在一定的差异,庞大的小蠹标本数量(85％)说明在此调查期间该科正处于大发生时期。(3)黑光灯捕虫器所捕的甲虫科类和种类较之碰撞诱捕网所捕?Kadoorie Farm and Botanical Garden is located in the New Territories, on the mainland of Hong Kong. During 1990 - 1995 impact flight (IM) and ultraviolet light (UV) traps were set for several consecutive periods to study abundance, diversity, and phenology of the Class Insecta. We report here these features for the Order Coleoptera and some major beetle families, and compare variation in these features for beetles between IM and UV traps. About 13000 specimens were collected belonging to 45 families (subfamilies) and 231 species. About 25% of these families are recorded from Hong Kong for the first time: Alleculidae, Biphyllidae, Byrrhidae, Colydiidae, Corylophidae, Cryptophagidae, Hydroscaphidae, Lagriidae, Lathridiidae, Limnichidae, and Zopheridae. Most of the beetles collected in the secondary forest are woodborers both in number and kind (either xylophagous or saprophytophagous), in contrast with the majority of phytophagous beetles collected by sweep nets in a nature reserve across the border in nearby China's Mainland. The Margalef (1958) rich- ness index indicates that Mordellidae, Coccinellidae, Curculionidae, Cerambycidae, Chrysomelidae, Elateridae, Carabidae, Staphylinidae, Corylophidae, Buprestidae, Nitidulidae, Scolytidae, and Tenebri- onidae are the richest families in species in decreasing order (d>1.5). The Shannon-Wiener (1949) diversity index indicates that Mordellidae, Coccinellidae, Curculionidae, Staphylinidae, Elateridae, Chrysomelidae, Cerambycidae, Carabidae, Nitidulidae, and Buprestidae are the most diverse families in decreasing order (H'>1.5). The Pielou (1975) evenness index indicates that Mordellidae, Coccinelli- dae, Curculionidae, Staphylinidae, Elateridae, Chrysomelidae, and Cerambycidae are the most balanced families in diversity and abundance in decreasing order (J>0.3). The Berger-Parker (1970) domi- nance ind

关 键 词：天牛科 瓢虫科 象甲科 花蚤科 金龟甲科 小蠹科 多样度指数 均匀度指数 

分 类 号：Q968[生物学—昆虫学]