Bioclimatic factors affecting the distribution of Quercus robur L. (pedunculate oak) subspecies in Turkey

Authors : Hatice ÇINAR YILMAZ, Osman Yalçın YILMAZ, Hatice YILMAZ

Pages : 31-39

Doi:10.31195/ejejfs.258623

View : 40 | Download : 14

Publication Date : 2016-07-14

Article Type : Research Paper

Abstract :Understanding the distribution of individual species and the factors affecting their distribution is a key issue in biogeography, ecology and conservation. This study was carried out to determine bioclimatic factors affecting the two pedunculate oak subspecies insert ignore into journalissuearticles values( Quercus robur L. subsp. robur and Q. robur subsp. pedunculiflora insert ignore into journalissuearticles values(K.Koch); Menitsky ); of Turkey and their tolerances to these factors. Mean Temperature of Coldest Quarter insert ignore into journalissuearticles values(Bio 11);, Temperature of Coldest Month insert ignore into journalissuearticles values(Bio 6);, Temperature Annual Range insert ignore into journalissuearticles values(Bio 7);, Temperature Seasonality insert ignore into journalissuearticles values(Bio);, Precipitation Seasonality insert ignore into journalissuearticles values(Bio 15);, Isothermality insert ignore into journalissuearticles values(Bio 3);, Annual Mean Temperature insert ignore into journalissuearticles values(Bio1); are highly correlated bioclimatic variables that effect the distribution of pedunculate oak subspecies. Multinominal logistic regression result showed that the Bio4 is the only factor explain most of the distribution of subspecies robur and subspecies pedunculiflora. The results also indicate that subspecies pedunculiflora shows a greater tolerance for extreme variation such as more drought summer and colder winters extreme variations during hot summers whereas subspecies robur is more sensitive to these climate variables
Keywords : bioclimatic tolerance range, pedunculate oak, subspecies, Turkey

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