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Community Ecology

, Volume 6, Issue 1, pp 29–37 | Cite as

A comparison of vegetation patterns in the tree and herb layers of a hardwood forest

  • T. TobischEmail author
  • T. Standovár
Article

Abstract

Meta-analysis is used to compare the patterns of the tree and the herb layers in a Central-European deciduous hardwood forest. Vegetation patterns are represented by distance matrices and dendrograms. The significance of the relation between the patterns is evaluated through permutation (Mantel) tests and full randomization (Monte Carlo simulation) tests. The relationship between the two layers is significant but weak. When using ecological indicators as variables for characterising the herb layer, the relation is stronger. Distance matrices and dendrograms describe the vegetation pattern similarly. However, the results of pairwise tests of significance strongly depend on the “level” of comparisons, i.e., whether distance matrices or dendrograms are compared. This follows perhaps from the differences between permutation and full randomization tests.

Keyword

Dendrogram Distance matrix Forest layers Full randomization tests Mantel-test Meta-analysis Monte Carlo simulation Pattern Permutation tests 

Abbreviations

98

herb data collected in the summer

99

herb data collected in the spring

A

basal area of the tree species

Ch

chord distance

CO

combined data of the herbs

Eu

Euclidean distance

i

frequency data of the ecological indices

N

abundance of the tree species

ns

no standardization

R

relative basal area of the tree species

rs

range standardization. (For example, Euns98 refers to one distance matrix or one dendrogram obtained from species frequency data of the summer herb layer with Euclidean distance and without standardization. Euns98i refers to one distance matrix or one dendrogram obtained in the same way, but from the quadrats by ecological indicators data matrix

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© Akadémiai Kiadó, Budapest 2005

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Department of Sylviculture and YieldForest Research InstituteBudapestHungary
  2. 2.Department of Plant Taxonomy and EcologyEötvös UniversityBudapestHungary

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