Palynostratigraphy of the Last Glacial Period in the Volcanic Region of Central Italy

Follieri, M.; Giardini, Marco; Magri, Donatella; Sadori, Laura

doi:10.1016/s1040-6182(97)00065-7

Cited by 119 publications

(84 citation statements)

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“…In particular, two sampling areas (SE Italy and Latium) are to be seen as Würm refugia, based on previous paleobotanical and vegetational studies (cf. Brewer et al, 2002;Follieri et al, 1998;Schirone and Spada, 1995;Spada et al, 1996). These are variously diVerentiated territories, in an ecological sense, located at mid altitudes in mountainous areas, that provided temporary refugia from climatically adverse conditions, and allowed the survival of small and isolated populations of trees.…”

Section: Utility Of Its Data In Oak Phylogenymentioning

confidence: 99%

Utility of ITS sequence data for phylogenetic reconstruction of Italian Quercus spp.

Bellarosa

Simeone

Papini

et al. 2005

Molecular Phylogenetics and Evolution

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Nuclear ribosomal DNA sequences encoding the 5.8S RNA and the Xanking internal transcribed spacers (ITS1 and ITS2) were used to test the phylogenetic relationships within 12 Italian Quercus taxa (Fagaceae). Hypotheses of sequence orthology are tested by detailed inspection of some basic features of oak ITS sequences (i.e., general patterns of conserved domains, thermodynamic stability and predicted conformation of the secondary structure of transcripts) that also allowed more accurate sequence alignment. Analysis of ITS variation supported three monophyletic groups, corresponding to subg. Cerris, Schlerophyllodrys ( D Ilex group sensu Nixon) and Quercus, as proposed by Schwarz [Feddes Rep., Sonderbeih. D,. A derivation of the "Cerris group" from the "Ilex group" is suggested, with Q. cerris sister to the rest of the "Cerris group." Quercus pubescens was found to be sister to the rest of the "Quercus group." The status of hybrispecies of Q. crenata (Q. cerris £ Q. suber) and Q. morisii (Q. ilex £ Q. suber) was evaluated and discussed. Finally, the phylogenetic position of the Italian species in a broader context of the genus is presented. The utility of the ITS marker to assess the molecular systematics of oaks is therefore conWrmed. The importance of Italy as a region with a high degree of diversity at the population and genetic level is discussed. 

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Section: Utility Of Its Data In Oak Phylogenymentioning

confidence: 99%

Utility of ITS sequence data for phylogenetic reconstruction of Italian Quercus spp.

Bellarosa

Simeone

Papini

et al. 2005

Molecular Phylogenetics and Evolution

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“…Despite the intensive aridification in eastern Anatolia during glacial, the vegetation composition of Lake Van and the Levantine Basin differs from the terrestrial Mediterranean pollen records. Firstly, drought-sensitive taxa such as Ulmus, Carpinus betulus and Fagus were frequently present in Italy, e.g., at Lago Grande di Monticchio, Valle di Castiglione, Stracciacappa and Lagaccione (Allen et al, 1999;Follieri et al, 1998) even during stadials. Secondly, the high-resolution Tenaghi Philippon and Ioannina sequences (Müller et al, 2011;Tzedakis et al, 2002) show that thermophilous trees (e.g., deciduous Quercus) increased rapidly during each interstadial without migrational lags (Fig.…”

Section: Comparison With Palynological Records From the Mediterraneanmentioning

confidence: 99%

“…Moreover, the different vegetation development in the Mediterranean region demonstrates a west to east vegetation gradient from an open temperate forest (including evergreen species) in the central (Allen et al, 1999;Follieri et al, 1998) and eastern Mediterranean (Müller et al, 2011) to a semiarid grassland in the Near East during DO interstadials. In eastern Anatolia, the availability of precipitation is the limiting factor for the establishment of an open oak steppe-forest.…”

Section: Comparison With Palynological Records From the Mediterraneanmentioning

confidence: 99%

“…Long-term terrestrial pollen records from the central and eastern Mediterranean, for example several crater lakes in Italy (e.g., Lagaccione, Lago di Vico, Lazio Valle di Castiglione, Stracciacappa; Follieri et al, 1998), Lago Grande di Monticchio (Italy; e.g., Allen et al, 1999), Lake Prespa (between Albania, Republic of Macedonia, and Greece; Panagiotopoulos et al, 2014), Lake Ohrid (Albania; Lézine et al, 2010) and Tenaghi Philippon (Greece; e.g., Müller et al, 2011) demonstrate a clear vegetation response to millennialscale climate variability during the last glacial. These regions are highly sensitive to short-term vegetation changes as recognized by steppe-dominated open landscapes during stadials and increased range of temperate tree taxa during interstadials (e.g., Allen et al, 2000Allen et al, , 1999Follieri et al, 1998;Langgut et al, 2011;Lézine et al, 2010;Müller et al, 2011;Panagiotopoulos et al, 2014;Shumilovskikh et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…These regions are highly sensitive to short-term vegetation changes as recognized by steppe-dominated open landscapes during stadials and increased range of temperate tree taxa during interstadials (e.g., Allen et al, 2000Allen et al, , 1999Follieri et al, 1998;Langgut et al, 2011;Lézine et al, 2010;Müller et al, 2011;Panagiotopoulos et al, 2014;Shumilovskikh et al, 2014). In contrast to southern Europe, high-resolution and continuous terrestrial sedimentary records displaying abrupt climate oscillations are rare in the entire Near East.…”

Section: Introductionmentioning

confidence: 99%

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Abrupt climate and vegetation variability of eastern Anatolia during the last glacial

et al. 2015

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Abstract. Detailed analyses of the Lake Van pollen, Ca / K ratio, and stable oxygen isotope record allow the identification of millennial-scale vegetation and environmental changes in eastern Anatolia throughout the last glacial (∼ 111.5-11.7 ka BP). The climate of the last glacial was cold and dry, indicated by low arboreal pollen (AP) levels. The driest and coldest period corresponds to Marine Isotope Stage (MIS) 2 (∼ 28-14.5 ka BP), which was dominated by highest values of xerophytic steppe vegetation.Our high-resolution multi-proxy record shows rapid expansions and contractions of tree populations that reflect variability in temperature and moisture availability. These rapid vegetation and environmental changes can be related to the stadial-interstadial pattern of Dansgaard-Oeschger (DO) events as recorded in the Greenland ice cores. Periods of reduced moisture availability were characterized by enhanced occurrence of xerophytic species and high terrigenous input from the Lake Van catchment area. Furthermore, the comparison with the marine realm reveals that the complex atmosphere-ocean interaction can be explained by the strength and position of the westerlies, which are responsible for the supply of humidity in eastern Anatolia. Influenced by the diverse topography of the Lake Van catchment, more pronounced DO interstadials (e.g., DO 19, 14, 12 and 8) show the strongest expansion of temperate species within the last glacial. However, Heinrich events (HE), characterized by highest concentrations of ice-rafted debris (IRD) in marine sediments, cannot be separated from other DO stadials based on the vegetation composition in eastern Anatolia. In addition, this work is a first attempt to establish a continuous microscopic charcoal record for the last glacial in the Near East.It documents an immediate response to millennial-scale climate and environmental variability and enables us to shed light on the history of fire activity during the last glacial.

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Stable isotopes of pedogenic carbonates from the Somma-Vesuvius area, southern Italy, over the past 18 kyr: palaeoclimatic implications

et al. 2000

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Palynostratigraphy of the Last Glacial Period in the Volcanic Region of Central Italy

Cited by 119 publications

References 0 publications

Utility of ITS sequence data for phylogenetic reconstruction of Italian Quercus spp.

Utility of ITS sequence data for phylogenetic reconstruction of Italian Quercus spp.

Abrupt climate and vegetation variability of eastern Anatolia during the last glacial

Stable isotopes of pedogenic carbonates from the Somma-Vesuvius area, southern Italy, over the past 18 kyr: palaeoclimatic implications

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