Journal
JOURNAL OF TROPICAL ECOLOGY
Volume 22, Issue -, Pages 431-440Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0266467406003221
Keywords
chronosequence; functional type; richness; secondary succession; seed dispersal syndrome; tropical montane forest
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Secondary succession was studied in a Mexican cloud forest region along a chronosequence of 15 abandoned pastures (0.25-80 y). Our objective was to determine the effects of distance from the forest border on successional vegetation structure and woody species richness along the chronosequence. Vegetation structure similar to that of mature forests recovered over 40-50 y, both close to (0-10 m) and away from (40-50 m) the border. Total woody species richness was similar for both distances but species composition differed significantly. When primary forest species were analysed separately, basal area, height, abundance and richness were all significantly higher close to the forest border. Primary species such as Quercus spp. (barochorous-synzoochorous) and Carpinus caroliniana (anemochorous) had lower basal area, density and height away from the border than close to it. Secondary species such as Lippia myriocephala (anemochorous) and Myrsine coriacea (endozoochorous) did not differ in their rate of colonization between distances. The limitation of seed dispersal and establishment for primary woody species away from forest borders suggests that propagules need to be introduced to accelerate forest restoration.
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