کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4759571 1421373 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combinations of aggregated and dispersed retention improve conservation of saproxylic beetles in boreal white spruce stands
ترجمه فارسی عنوان
ترکیبی از نگهداری جمع شده و پراکنده، حفاظت از سوسک های سابرولیس را در پایه های سفید سفال سفید بهبود می بخشد
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی
Retention of living trees in harvested stands is widely promoted as a way to conserve forest biodiversity; however, the quantity, quality and distribution of retention required to best meet biodiversity conservation goals are uncertain. We compared saproxylic beetle assemblages in dead white spruce among two sizes of retention patches (0.20 ha and 0.46 ha) surrounded by three different levels of dispersed retention (2% = clearcut, 20%, and 50%) in 10 ha cut-blocks included in the EMEND (Ecosystem Management Emulating Natural Disturbance) experiment in northwestern Alberta, Canada. Significant blow-down in forest patches of these sizes appeared to reduce their conservation capacity for saproxylic beetle assemblages 10-11 years post-harvest. However, higher amounts of dispersed retention in the matrix surrounding patches increased their capacity to maintain saproxylic beetle assemblages in comparison to clearcuts. Predatory species were most sensitive to harvesting intensity in the surrounding matrix. Our data suggest that ecosystem-based management that leaves combinations of aggregated and dispersed retention has much potential for conservation of saproxylic beetles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forest Ecology and Management - Volume 385, 1 February 2017, Pages 116-126
نویسندگان
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