Mapping and analyzing the spatial distribution of the tribe Triticeae Dumort. (Poaceae) in Turkey

DOĞAN, Hakan Mete
Doğan, Musa
Triticeae Dumort. (Poaceae), or true grasses, the fifth-largest plant family in the world, are of great importance in terms of human life and civilization. Therefore, understanding the spatial distribution of the family members is important for botanists, plant producers, and breeders. Turkey is one of two gene centers of this family. In this study, the spatial distribution of Triticeae in Turkey was mapped in geographic information systems (GIS) by utilizing a large number of specimens collected from 1006 georeferenced sampling sites between 2004 and 2010. Canonical correspondence analysis (CCA) was carried out in order to understand the spatial distribution of determined taxa. Environmental data for CCA were extracted from the available environmental raster map layers of Turkey. We identified and mapped a total of 76 species including 42 annuals and 34 perennials. CCA indicated that 6 environmental variables, namely potential evapotranspiration, elevation, distance to seas, maximum temperature, slope, and longitude, are the most effective in explaining the spatial distribution of the 12 annual species. However, the 6 environmental variables potential evapotranspiration, water vapor pressure, latitude, longitude, distance to seas, and sunshine fraction were the most effective in explaining the spatial distribution of the 20 perennial species. Aegilops triuncialis L. subsp triuncialis (annual) and Hordeum bulbosum L. (perennial) were the most abundant and widespread taxa, while Aegilops juvenalis (Thell.) Eig (annual) and Elymus libanoticus (Hack.) Melderis (perennial) were the scarcest and most rarely distributed species.


Comparative vegetative anatomy of the tribe triticeae dumortier (poaceae) in Turkey
Mavi, Dudu Özlem; Doğan, Musa; Department of Biology (2012)
Triticeae Dumort. is a tribe within the Pooideae subfamily of Poaceae. Major crop genera found in this tribe include barley (Hordeum), wheat (Triticum) and rye (Secale) all of which are closely related to each other. In Turkey, with the several subgroups, this tribe is represented by 16 genera and 75 species, many of which have great economic values. The main objective of this research work is to determine the taxa of this tribe on the basis of their diagnostic anatomical characters of vegetative organs for...
Modeling dissolved oxygen dynamics and hypoxia
Peña, M. A.; Katsev, S.; Oguz, T.; Gilbert, D. (Copernicus GmbH, 2010-3-9)
<jats:p>Abstract. Hypoxia conditions are increasing throughout the world, influencing biogeochemical cycles of elements and marine life. Hypoxia results from complex interactions between physical and biogeochemical processes, which can not be understood by observations alone. Models are invaluable tools at studying system dynamics, generalizing discrete observations and predicting future states. They are also useful as management tools for evaluating site-specific responses to management scenarios. Here we ...
Verbascum eskisehirensis sp nov (Scrophulariaceae) from central Anatolia, Turkey
Karaveliogullari, Faik Ahmet; Ocak, Atilla; EKİCİ, MURAT; Cabi, Evren (Wiley, 2009-01-01)
Verbascum eskisehirensis Karavel., Ocak & Ekici sp. nov. (sect. Bothrosperma Murb.) is described and illustrated from Turkey. This new species is confined to B3 Eskisehir in central Anatolia. A morphological comparison is made with the closely related species; V. oreophilum K. Koch and V. pyramidatum M. Bieb. In addition, a cluster analysis was conducted and a distribution map of the new species and the related species is also given.
Modelling seasonal circulation and thermohaline structure of the Caspian Sea
Gunduz, M.; Özsoy, E. (Copernicus GmbH, 2014-6-10)
<jats:p>Abstract. The wind- and buoyancy-driven seasonal circulation of the Caspian Sea is investigated for a better understanding of its basin-wide and mesoscale dynamics, mixing and transport. The model successfully reproduces the following basic elements of the circulation: the southward-flowing current systems along the eastern and western coasts, the upwelling along the eastern coast, the cyclonic circulation in the Middle Caspian Sea (MCS), especially in winter, and the cyclonic and anticyclonic cells...
Seasonal variability of the Caspian Sea three-dimensional circulation, sea level and air-sea interaction
Ibrayev, R. A; Ozsoy, E; Schrum, C.; Sur, H. I. (Copernicus GmbH, 2010-3-3)
<jats:p>Abstract. A three-dimensional primitive equation model including sea ice thermodynamics and air-sea interaction is used to study seasonal circulation and water mass variability in the Caspian Sea under the influence of realistic mass, momentum and heat fluxes. River discharges, precipitation, radiation and wind stress are seasonally specified in the model, based on available data sets. The evaporation rate, sensible and latent heat fluxes at the sea surface are computed interactively through an atmo...
Citation Formats
H. M. DOĞAN, E. CABİ, and M. Doğan, “Mapping and analyzing the spatial distribution of the tribe Triticeae Dumort. (Poaceae) in Turkey,” TURKISH JOURNAL OF BOTANY, pp. 37–46, 2017, Accessed: 00, 2020. [Online]. Available: