Effects of an in situ temperature increase on the short-term growth of arctic-alpine bryophytes

• This study examined the short-term growth responses to a temperature increase in situ of three bryophytes species of different genera. Temperatures were enhanced by the use of open-top chambers at Latnjajaure, a subarctic-alpine site in northernmost Sweden. Growth was measured during the growing season of 1995, using the tied-thread method for Aulacomnium turgidum, the cranked-wire method for Sphagnum teres, and the shoot-transplanting method for Tomentypnum nitens. Temperature enhancement significantly increased the growth in length of Sphagnum teres while no significant effects were found for the other two species. One possible reason for this is that Sphagnum teres had more water available, while the other two species could not respond to increased temperature due to constraints of water availability. 

Ämnesord

NATURVETENSKAP  -- Biologi (hsv//swe)

NATURAL SCIENCES  -- Biological Sciences (hsv//eng)

Nyckelord

Vegetation

Temperature

Increase

In situ

Uh Environmental protection and nature conservation

Uh Environmental protection and nature conservation

Publikations- och innehållstyp

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art (ämneskategori)