NDLI: Species response curves of oak species along climatic gradients in Turkey

Content Provider	Springer Nature Link
Author	Uğurlu, Emin Oldeland, Jens
Copyright Year	2011
Abstract	The genus Quercus is one of the most important tree species in Turkey. However, little is known on the ecological preferences of Turkish oak species regarding climate. We analyzed species response curves using a HOF-model approach to describe the general pattern of oak distributions along climatic gradients and to identify the driving climatic factors for eight oak species in Turkey. While climate data were extracted from the free available worldclim dataset, occurrence data on oak species were assembled from the literature into a vegetation database (n = 1,104). From the analyzed species response curves, only fa ew (16%) showed unimodal responses, while most were linear (31%) or exhibited a threshold response (31%). The driving factors were seasonality of temperature and seasonality of precipitation, indicating that Turkish oak species can be characterized best by the preference of climatic stability. These findings have important implications for conservation and climate change research, which usually focuses on trends of the mean values of temperature or precipitation but less often on the seasonality. In this study, we further tested whether niche optima derived from raw mean values of occurrences could replace missing model optima due to non-responsiveness of HOF models of type I. However, we did not find this to be a satisfactory solution. Finally, we discuss the need for the construction of a national database based on phytosociological relevés for Turkey.
Starting Page	85
Ending Page	93
Page Count	9
File Format	PDF
ISSN	00207128
Journal	International Journal of Biometeorology
Volume Number	56
Issue Number	1
e-ISSN	14321254
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-01-20
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Quercus HOF model Stability Seasonality Mediterrannean Plant Physiology Animal Physiology Environment Environmental Health Meteorology/Climatology Biophysics and Biological Physics
Content Type	Text
Resource Type	Article
Subject	Ecology Health, Toxicology and Mutagenesis Atmospheric Science

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