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Effect of Temperature and Number of Individuals of Common Coot, Fulica atra (Gruiformes: Rallidae) on Grouping and Dispersal on the Sapanca Lake Surface, Turkey

Effect of Temperature and Number of Individuals of Common Coot, Fulica atra (Gruiformes: Rallidae) on Grouping and Dispersal on the Sapanca Lake Surface, Turkey

Ali Uzun* and Bilgenur Yasa

Department of Biology, Arts and Science Faculty, Sakarya University, Sakarya, Turkey

*      Corresponding author: aliuzun@sakarya.edu.tr

ABSTRACT

In this study, the effect of temperature and the total number of individuals of coot Fulica atra on group formation and dispersal on the lake surface was studied. Coots form large groups in winter (as many as 11,500 individuals). The total number of individuals has no effect on dispersal on the lake surface and grouping behavior of the species (p>0.05). Temperature and security are the primary effective factors for these subjects (p<0.01). Behaviors related to security developed simultaneously and became normal in a short time after threats disappeared. However, persistent temperature, although it varied from time to time, played an important role during the study (p<0.05).
 

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Pakistan Journal of Zoology

August

Vol. 52, Iss. 4, Pages 1225-1630

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