Microscale distribution patterns of terrestrial bryophytes in a subalpine forest: the use of logistic regression as an interpretive tool

Abstract

This study investigated microhabitat relationships of terrestrial bryophytes in a subalpine forest of coastal British Columbia. Substratum affinities were characterized for dominant bryophytes. Logistic regression analysis was used to gain insight into the ecological determinants of fine scale (0.1m2) bryophyte distribution by examining the predictive relationship between bryophyte species occurrence and localized environmental conditions, as well as the coverage of other bryophytes. The predictive relationships were compared to evaluate the relative importance of environmental factors versus interspecific interactions in structuring bryophyte communities. The results indicate that bryophytes show unique responses in their relationships to environmental conditions and other bryophytes. Positive feedback appears to be an important process among terrestrial bryophytes in subalpine forests.

Abbreviations

CRS:

Creeping Stem

EXH:

Exposed Humus

FL1:

Fine Litter

LFH:

The accumulation of organic material present over mineral soil (Litter, Fermentation and Humus)

LR:

Logistic regression

WOOD:

Woody Debris

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Correspondence to K. D. Sadler.

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Sadler, K.D., Bradfield, G.E. Microscale distribution patterns of terrestrial bryophytes in a subalpine forest: the use of logistic regression as an interpretive tool. COMMUNITY ECOLOGY 1, 57–64 (2000). https://doi.org/10.1556/ComEc.1.2000.1.8

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Keywords

  • Bryophyte
  • Community pattern
  • Facilitation
  • Logistic regression
  • Microhabitat
  • Multivariate analysis
  • Subalpine forest