氣溫變冷季節地表甲蟲小尺度的逐日動態變化規律1)

王晶晶 王繼富 胡媛媛 劉俊 高梅香 李景科

(哈爾濱師范大學，哈爾濱，150025)

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氣溫變冷季節地表甲蟲小尺度的逐日動態變化規律1)

王晶晶 王繼富 胡媛媛 劉俊 高梅香 李景科

(哈爾濱師范大學，哈爾濱，150025)

在黑龍江省帽兒山國家生態站內，在20 m的固定樣地內基于規則格網調查法，采用陷阱法逐日采集2015年8月30日至11月21日的地表甲蟲，以揭示氣溫變冷季節地表甲蟲小尺度空間的逐日動態變化規律。結果表明：調查中共捕獲地表甲蟲1 332只，隸屬于5科、27個物種。在氣溫逐漸降低的季節，帽兒山紅松人工林小尺度的物種組成以步行蟲科、隱翅蟲科、埋葬甲科和象甲科物種為主。隨著氣溫的降低，地表甲蟲的群落物種多樣性和群落豐富度整體表現為逐漸降低的趨勢，但存在日間波動性；Pearson相關分析表明，這種逐日動態趨勢和溫度有顯著的相關性；這種逐日變化表現出物種之間的差異，步行蟲科和埋葬甲科物種較多的活動于相對溫暖的9月，而隱翅蟲科物種則在相對較冷的10月出現峰值。

地表甲蟲；氣溫變冷季節；逐日動態變化；紅松人工林；帽兒山

A regular grid survey was performed in a 20-m permanent plot in the Maoer Mountain Ecosystem Research Station in Heilongjiang Province, Northeast China. To reveal the daily dynamics of the above-ground beetles during lowering temperature season, we daily collected beetles using traps from August 30 th to November 21 th in 2015. The 1 332 individuals were captured, belonging to 5 families and 27 species. Carabidae, Staphylinidae, Silphidae and Curculionidae are dominant families in numbers for above-ground beetle communities on small scale during lowering season in aPinuskoraiensisplanted forest. Species and abundance of the communities were reducing with the decreasing temperature. However, a daily dynamics in richness and abundance of community was detected. From Pearson coefficient analysis, the daily dynamics were related to the temperatures of study area. Moreover, the daily dynamics was species dependence. Species of Carabidae and Silphidae were more activity in relatively warmer season, that is September. The number of Staphylinidae showed peak in relatively cooler season, that is October.

生物多樣性的時空格局一直是生物地理學和群落生態學的重要研究內容，生物多樣性的時空格局具有尺度依賴性[1]，即在不同的尺度條件下這種時空格局表現不同。目前的研究較多集中于地上生態系統和較大尺度生物多樣性的時空格局，少有研究關注小尺度空間時空格局，對地下生物多樣性小尺度時空格局的研究更是少見。……