Climatic determinism in phytogeographic regionalization: A test from the Irano-Turanian region, SW and Central Asia

Djamali, Morteza; Brewer, Simon; Breckle, Siegmar-Walter; Jackson, Stephen T.

doi:10.1016/j.flora.2012.01.009

Cited by 128 publications

(111 citation statements)

References 48 publications

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“…In particular, high continentality is the main cause of biogeographic and floristic differentiation from the central Mediterranean region to the Near East (Djamali et al, 2012b). It is interesting to note that Pinus, from the continental western and central Anatolia, did not occur at Lake Urmia during the last interglacial stage.…”

Section: Vegetation Differences Compared To Mediterranean and Near Eamentioning

confidence: 99%

Vegetation and environmental changes during the last interglacial in eastern Anatolia (Turkey): a new high-resolution pollen record from Lake Van

Pickarski

Kwiecien

Djamali

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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Section: Vegetation Differences Compared To Mediterranean and Near Eamentioning

confidence: 99%

Vegetation and environmental changes during the last interglacial in eastern Anatolia (Turkey): a new high-resolution pollen record from Lake Van

Pickarski

Kwiecien

Djamali

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…The degree of endemism in the ITfr ranges between 20%-40% (Takhtajan, 1986;Zohary, 1981) and is particularly high in the three biodiversity hotspots of the western ITfr: the Irano-Anatolian region, the Mountains of Central Asia, and the Caucasus (see Manafzadeh et al, 2017;Solomon, Shulkina, & Schatz, 2013). Among a number of features described as characteristic for the ITfr is the high diversity of Chenopodiaceae (sensu Walker et al, 2018), especially in desert and semi-desert areas (summarized in Djamali, Brewer, Breckle, & Jackson, 2012;Manafzadeh et al, 2017). In these arid areas, the vegetation is dominated by a high number of C 4 chenopods species (Manafzadeh et al, 2017;Schüssler et al, 2017;Takhtajan, 1986).…”

Section: Introductionmentioning

confidence: 99%

“…Based on floristic similarities, a close relationship of the ITfr to the Mediterranean region and Saharo-Arabian region has long been proposed (Takhtajan, 1986;Zohary, 1973). Consequently, some authors hypothesized that the ITfr served as a source area for the adjacent floristic regions (Comes, 2004;Djamali et al, 2012;Manafzadeh, Salvo, & Conti, 2014;Manafzadeh et al, 2017;Roquet et al, 2009;Zhang et al, 2014;Zohary, 1973), mostly because a stable dry climate has persisted in some parts of the ITfr since the early Eocene, hence providing a stable habitat for plant lineages over a long time (Manafzadeh et al, 2014(Manafzadeh et al, , 2017. Studies in Apiaceae (Banasiak et al, 2013), Brassicaceae (Franzke, Lysak, Al-Shehbaz, Koch, & Mummenhoff, 2011;Karl & Koch, 2013), and Rutaceae (Manafzadeh et al, 2014) support this hypothesis.…”

Section: Introductionmentioning

confidence: 99%

Biogeography of the xerophytic genus Anabasis L. (Chenopodiaceae)

Lauterbach

Veranso‐Libalah

Sukhorukov

et al. 2019

Ecology and Evolution

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Aim Using the extremophile genus Anabasis, which includes c. 28 succulent, xerophytic C4 species, and is widely distributed in arid regions of Northern Africa, Arabia, and Asia, we investigate biogeographical relationships between the Irano‐Turanian floristic region (ITfr) and its neighboring regions. We test whether the spread of arid and semi‐arid biomes in Eurasia coincides with the biogeography of this drought‐adapted genus, and whether the ITfr acted as source area of floristic elements for adjacent regions. Location Deserts and semi‐deserts of Northern Africa, Mediterranean, Arabia, West and Central Asia. Methods Four cpDNA markers (rpL16 intron, atpB‐rbcL, trnQ‐rps16, and ndhF‐rpL32 spacers) were sequenced for 58 accessions representing 21 Anabasis species. Phylogenetic relationships and divergence times were inferred using maximum likelihood and a time‐calibrated Bayesian approach. To document the extant distribution of Anabasis, material from 23 herbaria was surveyed resulting in 441 well‐documented collections used for the coding of eight floristic regions. Using this coded data, ancestral range was estimated using “BioGeoBEARS” under the DEC model. Results Anabasis originated during the Late Miocene and the ancestral range was probably widespread and disjunct between Western Mediterranean and the Irano‐Turanian regions. Diversification started with two divergence events at the Miocene/Pliocene boundary (5.1 and 4.5 mya) leading to Asian clade I with ITfr origin which is sister to a slightly younger Asian clade II, which originated in the Western ITfr, and a Mediterranean/North African clade with an origin in the Western Mediterranean. Main conclusions Anabasis did not follow aridification and continuously expanded its distribution area, in fact its probably wide ancestral distribution area seems to have been fragmented during the very Late Miocene and the remnant lineages then expanded into neighboring arid regions. This genus supports the role of the ITfr as source area for xerophytic elements in the Mediterranean and Central Asia.

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“…The life forms of the vegetation are considered to be an indicator of the climatic conditions. The Irano-Turanian region that has low rainfall and long dry season is characterized by the dominance of hemicryptophytes and chamaephytes (Djamali et al, 2012). Therophytes are also adapted to drought of Mediterranean climate (Giménez et al, 2004).…”

Section: Life Forms and Chorotypesmentioning

confidence: 99%

Phytosociological investigations of steppe and steppe forest vegetation in the south-east part of Central Anatolia of Turkey

Kenar¹

2017

İstanbul Üniversitesi Orman Fakültesi Dergisi

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Abstract:To gain a better understanding of the ecological systems, it is necessary to study the development, composition, and classification of the steppe and steppe forest communities, which are the primary components of phytocoenoses in semi-arid environments. Therefore, this study was aimed to contribute to a syntaxonomic classification of the Central Anatolian steppe and steppe forest vegetation. The Braun-Blanquet approach was used to analyze the vegetation of the study area in Göllüdağ (2172 m a.s.l.) located in the north of Niğde province. The vegetation data were analyzed using cluster analysis and detrended components analysis. The relationships between the communities and certain environmental factors were examined by principal components analysis. Two new steppe and steppe forest communities in Central Anatolia were classified in this study. The steppe communities were included in Agropyro tauri-Stachydion lavandulifoliae and Astragalo-Brometalia, whereas the steppe forest communities were classified as Quercion anatolicae and Querco cerridis-Carpinetalia orientalis.Key words: Göllüdağ, steppe, oak scrubs, phytosociology, syntaxonomy İç Anadolu'nun Güneydoğu kesiminde step ve step bitki örtüsü ile ilgili fitososyolojik araştırmalar Özet: Ekolojik sistemlerin daha iyi anlaşılması için yarı kurak ortamlardaki fitosenözlerin temel bileşenlerinden olan step ve step ormanı komünitelerinin gelişimi, yapısı ve sınıflandırılmasının araştırılması gerekmektedir. Bu nedenle çalışmada, İç Anadolu step ve step ormanı vejetasyonunun sintaksonomik olarak sınıflandırılmasına katkı sağlaması amaçlanmıştır. Niğde ilinin kuzeyinde bulunan Göllüdağ'da bulunan araştırma alanının vejetasyonu Braun-Blaunquet metoduna göre analiz edilmiştir. Vejetasyon verilerinin analizi, kümeleme ve Eğilimsiz Uyum Analizi ile gerçekleştirilmiştir. Komüniteler ile bazı çevresel faktörler arasındaki ilişki Temel Bileşen Analizi yardımıyla incelenmiştir. Çalışmada İç Anadolu'da iki yeni step ve step ormanı komünitesi tespit edilmiştir.Step komünitesi Agropyro tauri-Stachydion lavandulifoliae alyansına ve Astragalo-Brometalia ordosuna dâhil edilirken, step ormanı komünitesi Quercion anatolicae alyansına ve Querco cerridis-Carpinetalia orientalis ordosu içerisinde sınıflandırılmıştır.

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Climatic determinism in phytogeographic regionalization: A test from the Irano-Turanian region, SW and Central Asia

Cited by 128 publications

References 48 publications

Vegetation and environmental changes during the last interglacial in eastern Anatolia (Turkey): a new high-resolution pollen record from Lake Van

Vegetation and environmental changes during the last interglacial in eastern Anatolia (Turkey): a new high-resolution pollen record from Lake Van

Biogeography of the xerophytic genus Anabasis L. (Chenopodiaceae)

Phytosociological investigations of steppe and steppe forest vegetation in the south-east part of Central Anatolia of Turkey

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