A statistical approach on seasonal population changes and habitat preferences on coastal and waterfowl species around ekŞisu reeds (Erzincan-turkey): Using negative binomial regression


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AZİZOĞLU E., Adızel Ö., KARA R.

Applied Ecology and Environmental Research, vol.19, no.1, pp.653-665, 2021 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.15666/aeer/1901_653665
  • Journal Name: Applied Ecology and Environmental Research
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Environment Index, Pollution Abstracts, Veterinary Science Database
  • Page Numbers: pp.653-665
  • Keywords: Bird population, Count data, Habitat, Negative binominal regression, Overdispersion
  • Hakkari University Affiliated: Yes

Abstract

The present study was performed in order to analyze the population density of 55 coastal and waterfowl species belonging to 15 families in Ekşisu Reeds using negative binominal regression models according to their habitat preferences. For this study, Anas crecca was chosen as a reference species. Population changes of 55 different species were interpreted in relation to it. Accordingly, increases by 4.48 fold (p<0.001) in Anas platyrhynchos population, 3.45 fold (p<0.001) in Fulica atra population, 2.45 fold (p<0.05) in Larus armenicus population (p<0.05), and 1.77 fold (p<0.05) in Tadorna ferruginea population were noted. In addition, the population of 19 species decreased. Of the seasons, autumn was taken as a reference, thus a 1.50 fold-increase (p<0.01) was recorded in the winter season. Changes in other seasons were not statistically significant. When the reed habitat was taken as reference, it was determined that there was a 1.33 times increase (p<0.05) in the water surface habitat and 36% decrease in agricultural areas (p<0.05). Meadows and marshland habitats were not found statistically significant.