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A preliminary analysis of the response of an avian community to silvicultural treatments in the southern cumberland plateau, Alabama, USA

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Integrative Zoology 2006年第3期1卷 126-129页

作者： Yong WANG Adrian ALESAK Zachary FELIX Callie Jo SCHWEITZER Center for Forestry and Ecology Department of Plant and Soil ScienceAlabama A&M UniversityNormalAlabamaUSA Ecology and Management of Southern Appalachian Hardwoods Southern Research StationForest Service of the Department of AgricultureNormalAlabamaUSA

We simulated a shelterwood forest regeneration treatment by reducing basal area,and monitored the response of an avian community in oak–hickory forest on the southern cumberland plateau,northern Alabama,*** used five treatments:control(no removal),clear-cut(100%removal),and 25,50,and 75%removal of basal *** mapping was used to quantify bird community between mid-April and July of both 2002 and *** variables were recorded at each *** residual basal area and canopy cover showed three distinct conditions after treatment:closed canopy,open forest,and *** microclimate varied among treatments:air temperature was highest in clear-cut plots and lowest in control plots,whereas soil moisture had the opposite pattern.A total of 71 bird species were detected,with 36 of them defending *** density,species richness,and Shannon diversity index differed among the treatments;the relationship between these bird community indices and the level of basal area removal was quadratic,lowest in the clear-cut plots and highest in the intermediate *** species richness was similar among the control,25,50,and 75%removal treatments,species composition *** richness difference among treatments became smaller in the second year post-treatment(2003)with an increase in bird density and richness occurring in the clear-cut plots.

关键词： avian community biodiversity cumberland plateau forestry silviculture

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