J 2017

Open tundra persist, but arctic features decline—Vegetation changes in the warming Fennoscandian tundra

VUORINEN, Katariina E. M., Lauri OKSANEN, Tarja OKSANEN, Anni Kanerva PYYKÖNEN, Johan OLOFSSON et. al.

Základní údaje

Originální název

Open tundra persist, but arctic features decline—Vegetation changes in the warming Fennoscandian tundra

Autoři

VUORINEN, Katariina E. M. (246 Finsko), Lauri OKSANEN (246 Finsko), Tarja OKSANEN (246 Finsko), Anni Kanerva PYYKÖNEN (246 Finsko, garant, domácí), Johan OLOFSSON (752 Švédsko) a Risto VIRTANEN (246 Finsko)

Vydání

Global Change Biology, Hoboken, USA, Wiley, 2017, 1354-1013

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 8.997

Kód RIV

RIV/00216224:14310/17:00097812

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000406812100030

Klíčová slova anglicky

alpine; arctic; climate change; disturbance; Empetrum nigrum; lichens; mosses; reindeer; tree line; tundra; vegetation

Štítky

Změněno: 14. 4. 2020 09:29, Mgr. Lucie Jarošová, DiS.

Anotace

V originále

In the forest-tundra ecotone of the North Fennoscandian inland, summer and wintertemperatures have increased by two to three centigrades since 1965, which isexpected to result in major vegetation changes. To document the expected expan-sion of woodlands and scrublands and its impact on the arctic vegetation, werepeated a vegetation transect study conducted in 1976 in the Darju, spanning fromwoodland to a summit, 200 m above the tree line. Contrary to our expectations,tree line movement was not detected, and there was no increase in willows orshrubby mountain birches, either. Nevertheless, the stability of tundra was apparent.Small-sized, poorly competing arctic species had declined, lichen cover haddecreased, and vascular plants, especially evergreen ericoid dwarf shrubs, hadgained ground. The novel climate seems to favour competitive clonal species andspecies thriving in closed vegetation, creating a community hostile for seedlingestablishment, but equally hostile for many arctic species, too. Preventing trees andshrubs from invading the tundra is thus not sufficient for conserving arctic biota inthe changing climate. The only dependable cure is to stop the global warming.