Climate change and climatic events: community-, functional- and species-level responses of bryophytes and lichens to constant, stepwise, and pulse experimental warming in an alpine tundra

@article{Alatalo2014ClimateCA,
  title={Climate change and climatic events: community-, functional- and species-level responses of bryophytes and lichens to constant, stepwise, and pulse experimental warming in an alpine tundra},
  author={Juha Mikael Alatalo and Annika K. J{\"a}gerbrand and Ulf Molau},
  journal={Alpine Botany},
  year={2014},
  volume={124},
  pages={81-91}
}
We experimentally imposed three different kinds of warming scenarios over 3 years on an alpine meadow community to identify the differential effects of climate warming and extreme climatic events on the abundance and biomass of bryophytes and lichens. Treatments consisted of (a) a constant level of warming with open top chambers (an average temperature increase of 1.87 °C), (b) a yearly stepwise increase of warming (average temperature increases of 1.0; 1.87 and 3.54 °C, consecutively), and (c… 

Impacts of different climate change regimes and extreme climatic events on an alpine meadow community

TLDR
It is found that stepwise warming had an accumulating effect on biomass, the responses to the different warming regimes varied among functional groups, and the short-term perturbations had negative effect on species richness and diversity.

Responses of lichen communities to 18 years of natural and experimental warming

TLDR
The results from the long-term warming study imply that arctic and high alpine lichen communities are likely to be negatively affected by climate change and an increase in plant canopy cover.

Warming and nitrogen addition effects on bryophytes are species‐ and plant community‐specific on the eastern slope of the Tibetan Plateau

Question Global change is likely to strongly affect alpine and sub-alpine regions, in which bryophytes are important components. Global change effects on sub-alpine vegetation, bryophytes in

Bryophyte cover and richness decline after 18 years of experimental warming in alpine Sweden

TLDR
Principal response curve, cover and richness results suggested that bryophytes in alpine heath are more susceptible to warming than in meadow, supporting the suggestion that brysophytes may be less resistant in drier environments than in wetter habitats.

EDITORIAL: VEGETATION IN COLD ENVIRONMENTS UNDER CLIMATE CHANGE Faster, higher, more? Past, present and future dynamics of alpine and arctic flora under climate change

Climate warming affects the biotic environment worldwide, and especially in cold regions such as Arctic and alpine biomes. Enhanced plant growth, shrub encroachment and upward migration of species

Faster, higher, more? Past, present and future dynamics of alpine and arctic flora under climate change

Climate warming affects the biotic environment worldwide, and especially in cold regions such as Arctic and alpine biomes. Enhanced plant growth, shrub encroachment and upward migration of species

Diversity-productivity dependent resistance of an alpine plant community to different climate change scenarios

Here we report from a experiment imposing different warming scenarios [control with ambient temperature, constant level of moderate warming for 3 years, stepwise increase in warming for 3 years, and

References

SHOWING 1-10 OF 75 REFERENCES

Plant community responses to 5 years of simulated climate change in meadow and heath ecosystems at a subarctic-alpine site

TLDR
It is shown that the abundance of forbs increased in response to the combined treatment of temperature and nutrient addition in the meadow plant community, and within a single-plant functional type, most species responded similarly to the enhanced treatments although there were exceptions, particularly in the moss and lichen functional types.

Responses of subarctic-alpine plant communities to simulated environmental change : Biodiversity of bryophytes, lichens, and vascular plants

TLDR
Climate change may cause a shift in the bottom layer from being dominated by mosses, to become dominated by lichens, and this will probably cause shifts in the dominance of both bottom layer and canopy layer species.

Arctic warming on two continents has consistent negative effects on lichen diversity and mixed effects on bryophyte diversity

Little is known about the impact of changing temperature regimes on composition and diversity of cryptogam communities in the Arctic and Subarctic, despite the well‐known importance of lichens and

Species-specific responses of an alpine plant community under simulated environmental change

Abstract Question: How will warming and increased nutrient availability affect individual alpine plant species abundances (non-vascular and vascular) and community composition? Location: Dryas

Responses of bryophytes to simulated environmental change at Latnjajaure, northern Sweden

TLDR
As the bryophytes are an important component of arctic and subarctic vegetation, it is expected that they will play a key role in the impact of anticipated Global Change on the ecosystems.

Global change and arctic ecosystems: is lichen decline a function of increases in vascular plant biomass?

1 Macrolichens are important for the functioning and biodiversity of cold northern ecosystems and their reindeer‐based cultures and economies. 2 We hypothesized that, in climatically milder parts of

Bryophyte and Lichen Diversity Under Simulated Environmental Change Compared with Observed Variation in Unmanipulated Alpine Tundra

TLDR
During the course of the study, no species new to the investigated mid-alpine landscape were recorded, but that scenario is realistic within a decade when comparing with the processes seen in vascular plants.

Simulated global change: contrasting short and medium term growth and reproductive responses of a common alpine/Arctic cushion plant to experimental warming and nutrient enhancement

TLDR
The results show that S. acaulis living in harsh environments has potential to react quickly when experiencing years with favorable conditions, and is more responsive to nutrient enhancement than to warming in terms of vegetative growth.

Effects of environmental perturbations on abundance of subarctic plants after three, seven and ten years of treatments

TLDR
There were many cumulative effects of the treatments for all functional groups and many interactions between time and treatment, suggesting that once a change in community composition is triggered, it will continue with unchanged or accelerated rate for a long period of time.

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

TLDR
Temperature enhancement significantly increased the growth in length of Sphagnum teres while no significant effects were found for the other two species, possibly due to constraints of water availability.
...