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    Distribution of rose hip (Rosa caninaL.) under current and future climate conditions
    (Springer Heidelberg, 2020) Arslan, E. Seda; Akyol, Ayhan; Orucu, Omer K.; Sarıkaya, Ayşe Gül
    This study aims to model the potential distribution areas of the speciesRosa canina L.(rose hip) and to predict and analyse possible future changes in its distribution under given climate change scenarios. Nineteen bioclimatic variables from the WorldClim database were applied to 180 known species presence locations and the potential distribution area of the species under current conditions was identified using MaxEnt. To determine the future geographical distribution of the species under the impact of climate change, the Community Climate System Model (CCSM ver. 4) was used. The climate change scenarios were taken from the Representative Concentration Pathway (RCP) 4.5 and RCP 8.5 scenarios for 2050 and 2070 developed in line with the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. In addition, change analysis was carried out to identify the precise differences of area and location between the current and future potential distributions of the species, specifying habitat gains, habitat losses and stable habitats. Finally, a jackknife test was carried out to determine which individual bioclimatic variables affect the geographical distribution of the species the most. The study found that areas totalling 170,596 km(2)are currently 'highly suitable' forRosa caninaL., but that this area will contract to 114,474 km(2)by 2070 in the RCP 4.5 scenario and to 41,146 km(2)by 2070 in the RCP 8.5 scenario. The mean temperature of the wettest quarter was the most influential bioclimatic variable affecting the distribution of the species.