Species co-occurence in coastal dunes in North of Turkey

Agir S. U., Kutbay H. G., SÜRMEN B.

RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI, vol.27, no.4, pp.729-736, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 4
  • Publication Date: 2016
  • Doi Number: 10.1007/s12210-016-0563-1
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.729-736
  • Keywords: Central Black Sea Region, Coastal sand dunes, Humped-back relationships (HBR) hypothesis, Species aggregation, Species seggregation, Stress-gradient (SGH) hypothesis, STRESS-GRADIENT HYPOTHESIS, NULL MODEL ANALYSIS, ENVIRONMENTAL GRADIENTS, VEGETATION, FACILITATION, COMPETITION, DIVERSITY, PATTERNS, SHAPE, CLASSIFICATION
  • Ondokuz Mayıs University Affiliated: Yes


Plant co-occurence patterns were studied in coastal dunes in Central Black Sea Region of Turkey (North of Turkey) by the help of the checkerboard score (C-score), and the checkerboard score for abundance data (CA-score) along climatic and local gradients. There were significant differences along the local and climatic gradients with respect to both standardised C- and CA-scores. Standardised C- scores were found to be significantly different along sea-inland gradient except for fixed dune zone, while standardised CA-scores were significantly different in embryonic and main dune zones. Our results were supported HBR (humped-back relationships) hypothesis in studied coastal dunes because standardised scores were usually found to be > 0. In other words, segregation was prevailed in studied species rather than aggregation.