Spatial and temporal dynamics of growth of woody plant species (birch and willows) on the foreland of a retreating glacier in southern Iceland

作     者：Haley E.Synan Mikael A.Melfi Lawrence H.Tanner Haley E.Synan;Mikael A.Melfi;Lawrence H.Tanner

作者机构：Department of Biological and Environmental SciencesLe Moyne CollegeSyracuseNew York 13214USA 

出 版 物：《Ecological Processes》 (生态过程（英文）)

年 卷 期：2021年第10卷第1期

页      面：184-194页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 0815[工学-水利工程] 0713[理学-生态学] 

基　　金：supported by Le Moyne College through the Joseph C.Georg Endowed Professorship,awarded to LHT supported by McDevitt Center for Excellence fellowships awarded to HES and MAM 

主　　题：Glacial foreland Chronosequence Primary succession Spatial distribution Aboveground biomass Iceland 

摘      要：Background:The forelands of retreating glaciers are invaluable natural laboratories in which to explore the processes of primary *** studies have been conducted on foreland chronosequences to identify temporal and spatial trends of the successional *** study focused on the spatio-temporal distribution of three woody plant species on the foreland of a retreating glacier in southern Iceland where historical observations provide precise age control of the *** evaluate colonization and successional trends,we examined which species increase in abundance with time and tested the role of proximity to a seed source in ***,we quantified the rate at which biomass carbon is added to the ***:The density of stems of Betula pubescens increases with moraine age across the foreland chronosequence while the density of stems of both Salix lanata and Salix phylicifolia *** found low statistical significance to the relationship between the density of *** and distance from a forested ridge nor did we find a relationship between the lengths of the stems and the moraine *** biomass increased fastest during early successional stages and reached a maximum of 28.5 g C m^(−2) on the oldest ***:Early colonization of moraines was controlled by environmental filters which favored both Salix *** by *** followed as environmental factors,e.g.,favorable soil properties,*** found no conclusive evidence that proximity to a potential source of *** propagules was a significant factor in controlling *** assumption that the abundance of individuals increased with time through later successional stages proved valid for ***,but not for either species of *** findings are consistent with the classical spatial successional model of community ***,general successional processes at the landscape scale control the temp