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Pinus brutia

April 19th, 2017 Leave a comment Go to comments

Pinus halepensis is a strongly serotinous pine [1,2] occurring mainly in the western part of the Mediterranean Basin (especially in Spain; see map below). The most phylogenetically closely related species to P. halepensis is Pinus brutia that occurs in the eastern Mediterranean Basin (mainly in Turkey). P. brutia is called ‘red pine’ in Turkish (Kızıl çam) because sometimes the upper part of the trunk is reddish (as in P. sylvestris); the leaves are pale green as in P. halepensis. In relation to their fire response strategy [3], the main differences between the two species are that P. brutia is taller, the bark is thicker and the serotiny level is lower. Our observations suggest that P. brutia have relatively few serotinous cones, and most of then are less than 4 years old; P. halepensis have a higher proportion of serotinous cones, with many of them over 5 year old (and some more than 20 year old) [1].

Distribution maps of P. halepensis and P. brutia (from Wikipedia)

Pinus brutia forest, serotinous cones (2 serotinous and one non-serotinous (open)), and an example of a bark of more than 5 cm thick (the gaude was too short!). Photos from SW Turkey (by JG Pausas). For an example of serotinous cones in P. halepensis, see here.


[1] Hernandez-Serrano A., Verdú M., González-Martínez S.C., Pausas J.G. 2013. Fire structures pine serotiny at different scales. Am. J. Bot. 100: 2349-2356. [doi | pdf | supp.]

[2] Castellanos, M.C., González-Martínez, S. & Pausas, J.G. 2015. Field heritability of a plant adaptation to fire in heterogeneous landscapes. Mol. Ecol. 24, 5633-5642. [doi | pdf | suppl. | blog]

[3] Pausas, J.G. 2015. Evolutionary fire ecology: lessons learned from pines. Trends Pl. Sci. 20: 318-324. [doi | pdf | blog]

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