کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
88115 159284 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Are beech (Fagus sylvatica) roots territorial?
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Are beech (Fagus sylvatica) roots territorial?
چکیده انگلیسی

Root competition between conspecific neighbours has been notoriously difficult to determine in intact ecosystems. Here we applied microsatellite markers to genotype beech trees (Fagus sylvatica, L.) and roots in subplots in an undisturbed, old-growth monospecific forest (Hainich, Germany). Roots were quantified and assigned to individuals. As a measure for territoriality, we determined root segregation. The hypothesis was tested that intraspecific root diversity was higher in the geometric centre of a triangle formed by beech trees than at positions closer to the stem of a tree. Space exploration measured as presence of an individual was correlated with stem diameter but not soil occupation. Fine root biomass, intraspecific Shannon diversity, effective numbers of genotypes and Evenness were stable and unrelated to the distance of the target tree. We conclude that beech shows no indication for territoriality or asymmetric competition in the presence of conspecific neighbours.

Research highlights▶ Root competition in intact ecosystems. ▶ Microsatellite markers were used to genotype beech trees and roots. ▶ Space exploration correlated with stem diameter but not soil occupation. ▶ Monospecific beech trees show no territoriality.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forest Ecology and Management - Volume 260, Issue 7, 31 August 2010, Pages 1212–1217
نویسندگان
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