Natural forests of Pinus pinea in western Turkey: a priority for conservation
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ORIGINAL PAPER
Natural forests of Pinus pinea in western Turkey: a priority for conservation Gianmaria Bonari1,2 Milan Chytry´1
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Krysˇtof Chytry´1
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Su¨leyman Çoban3
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Received: 19 May 2020 / Revised: 14 September 2020 / Accepted: 14 September 2020 Ó Springer Nature B.V. 2020
Abstract Identifying, surveying, monitoring and protecting natural forests is a major task in conservation biology. However, it is often challenging to identify which forest is natural, especially in human-altered regions such as the Mediterranean. Consequently, the distributions of natural Mediterranean forest types and their underlying factors are often unclear. Here, we attempt to explain the restricted and scattered distribution of natural Pinus pinea (Stone pine) forests in western Anatolia (Turkey) by comparing it with the distribution and ecology of the widespread Pinus brutia (Turkish pine) forests in this area. We used climatic and topographic predictors to test for differences between forests dominated by these two pine species. We modelled the realized niches of both pine species using the most relevant climatic predictors. Then, we compared soil data collected in the field, partly complemented with those published in the literature. We found small differences in climatic (precipitation and temperature) and topographic characteristics between the two forest types, which did not adequately explain the differences in the distribution range of P. brutia and P. pinea dominated forests. Our data suggest that these two forest types mainly differ in soil characteristics. The primary habitat of natural P. pinea forests is characterized by a low soil pH and calcium content. The rare occurrence of such soil conditions in western Anatolia likely shapes the scattered distribution of P. pinea forests. Our study suggests that natural P. pinea forests are rare habitats that should be in the focus of nature conservation. Keywords Ecological niche Habitat Mediterranean Pine Pinus brutia Soil
Communicated by Daniel Sanchez Mata. This article belongs to the Topical Collection: Forest and plantation biodiversity. & Gianmaria Bonari [email protected] 1
Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
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Faculty of Science and Technology, Free University of Bolzano, Bozen, Italy
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Department of Silviculture, Faculty of Forestry, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Biodiversity and Conservation
Introduction Natural forests are understood as a fundamental part of the natural capital, although not yet adequately acknowledged by society (Costanza et al. 1997; Parviainen and Frank 2003; Chan et al. 2006; Reif and Walentowski 2008; Turner and Daily 2008). Their conservation ensures the maintenance of biological diversity, but in some cases, it can be challenging to identify which forest is natural. Similar species composition and forest structure may develop both naturally and as a result of human management, and conse
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