2015
Modelling the Last Glacial Maximum environments for a refugium of Pleistocene biota in the Russian Altai Mountains, SiberiaPalaeogeography, Palaeoclimatology, Palaeoecology
HAIS, Martin, Klára KOMPRDOVÁ, Nikolai ERMAKOV a Milan CHYTRÝZákladní údaje
Originální název
Modelling the Last Glacial Maximum environments for a refugium of Pleistocene biota in the Russian Altai Mountains, SiberiaPalaeogeography, Palaeoclimatology, Palaeoecology
Autoři
HAIS, Martin (203 Česká republika), Klára KOMPRDOVÁ (203 Česká republika, domácí), Nikolai ERMAKOV (643 Rusko) a Milan CHYTRÝ (203 Česká republika, garant, domácí)
Vydání
Palaeogeography, Palaeoclimatology, Palaeoecology, AMSTERDAM (NETHERLANDS), Elsevier, 2015, 0031-0182
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.525
Kód RIV
RIV/00216224:14310/15:00081406
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000362613300011
Klíčová slova anglicky
Climate change; Habitat distribution models; Palaeoenvironments; Pleistocene; Random Forest; Vegetation-climate relationships
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2018 10:35, Mgr. Lucie Jarošová, DiS.
Anotace
V originále
Recent botanical and zoological studies have suggested that the AltaiMountains in southern Siberia are an important refugiumof the last glacial biota that used to bewidespread across northern Eurasia before the Pleistocene– Holocene transition. To obtain insights into the history of this relict biota,we modelled the spatial distribution of habitats during the Last GlacialMaximum (LGM) in the Russian Altai. We prepared a map of the current vegetation of this area based on the ground-truthed remote sensing data, and modelled the distribution of the current vegetation types using the Random Forest technique with climatic predictors. The models were projected onto the CCSM3 model of the LGMclimate for the Russian Altai and interpreted for 72% of its area because the remaining part is supposed to have been glaciated during the LGM. The models projected LGMpredominance of desertsteppe acrossmost of the non-glaciated area of the Russian Altai, probably associatedwith areas of typical steppe, tundra grasslands and some other habitat types, including forest patches in streamvalleys. It is likely that during the LGM, these habitats supported the cold-adapted open-landscape biota. In the Holocene, most of the previous grassland area changed into forest or forest-steppe and the Pleistocene biota retreated, with the exception of the Chuya Basin and the Ukok Plateau in the southeast, where the habitat change was very small and desert-steppe and associated vegetation types remained preserved. This refugial area is currently rich in the relict Pleistocene species. A different history was suggested for the precipitation-rich area in the northernmost Altai (north of Lake Teletskoye), where the LGM models suggested occurrence of patches of open forest of Larix sibirica and Pinus sibirica in forest-tundra and forest-steppe landscapes. These forests may have provided the LGM refugium for the temperate forest species that currently occur in this precipitation-rich area.
Návaznosti
GAP504/11/0454, projekt VaV |
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LM2011028, projekt VaV |
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