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Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Comparing the responses of bryophytes and short-statured vascular plants to climate shifts and eutrophication
Autor Virtanen, R.; Eskelinen, A.; Harrison, S.;
Journal / Serie Functional Ecology
Erscheinungsjahr 2016
Department iDiv; PHYDIV;
Band/Volume 31
Heft 4
Sprache englisch;
POF III (gesamt) T11;
Keywords climate change; grasslands; nutrients; plant height; precipitation; productivity; semi-arid ecosystems
UFZ Querschnittsthemen RU1
Abstract

1.Few experimental studies have tested how abundance and diversity of grassland bryophytes respond to global environmental changes such as climate shifts and eutrophication. Because bryophytes in grasslands are low-statured, and because plant height is a key functional trait governing plant responses to resource gradients, their responses to these factors could resemble those of better-studied small vascular plants. Alternatively, traits unique to bryophytes could lead to qualitatively different responses than those of small vascular plants.

2.In a semiarid Californian grassland system, where bryophytes are at relatively low abundance and their ecology has been little studied, we compared changes in cover and species richness of bryophytes and short-statured vascular plants in response to five years of experimental fertilization, springtime watering, and fertilization + watering, which produced strong gradients in vascular plant biomass.

3.Supporting our hypotheses, the cover and richness of both bryophytes and short vascular plants were negatively related to total community biomass and tall vascular plant cover, and declined in response to the fertilization + watering treatment, in which the cover of tall vascular plants most strongly increased.

4.Two divergent responses were also observed: watering alone increased the cover of bryophytes but not short vascular plants, while fertilization alone reduced the cover of short vascular plants but not bryophytes.

5.Bryophytes and short-statured vascular plants in grasslands both may be expected to decline under projected global changes in climate and nutrient deposition that enhance total community biomass and competitive pressure. However, shifts in either precipitation or eutrophication regimes alone may have differential effects on bryophytes and short vascular plants in grasslands, and organism-specific plant functional traits must also be considered.

ID 17988
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=17988
Virtanen, R., Eskelinen, A., Harrison, S. (2016):
Comparing the responses of bryophytes and short-statured vascular plants to climate shifts and eutrophication
Funct. Ecol. 31 (4), 946 - 954