کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6348075 1621649 2015 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact of Holocene climate variability on Arctic vegetation
ترجمه فارسی عنوان
تأثیر تغییرات اقلیمی هولوسن در پوشش گیاهی قطب شمال
کلمات کلیدی
قطب شمال، کانادا، گرینلند، هولوسن، پالئواکولوژی، استعمار پس از زایمان، پناهگاه پراکنش از راه دور، تولید گیاه، تنوع زیستی، گرده،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
This paper summarizes current knowledge about the postglacial history of the vegetation of the Canadian Arctic Archipelago (CAA) and Greenland. Available pollen data were used to understand the initial migration of taxa across the Arctic, how the plant biodiversity responded to Holocene climate variability, and how past climate variability affected primary production of the vegetation. Current evidence suggests that most of the flora arrived in the area during the Holocene from Europe or refugia south or west of the region immediately after local deglaciation, indicating rapid dispersal of propagules to the region from distant sources. There is some evidence of shrub species arriving later in Greenland, but it is not clear if this is dispersal limited or a response to past climates. Subsequent climate variability had little effect on biodiversity across the CAA, with some evidence of local extinctions in areas of Greenland in the late Holocene. The most significant impact of climate changes is on vegetation density and/or plant production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Global and Planetary Change - Volume 133, October 2015, Pages 272-287
نویسندگان
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