Testing reliability of short-term responses to predict longer-term responses of bryophytes and lichens to environmental change

Alatalo, Juha M.; Jägerbrand, Annika K.; Molau, Ulf

doi:10.1016/j.ecolind.2015.05.050

Cited by 35 publications

(35 citation statements)

References 57 publications

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“…The decrease of total bryophyte cover in response to warming in both sites partially supports the first hypothesis that total bryophyte cover and species richness decrease in response to warming and N addition. This is consistent with observations made in other ecosystems (Walker et al 2006;J€ agerbrand et al 2009;Alatalo et al 2015). However, in contrast to Walker et al (2006), the decrease of the bryophyte cover observed in this study cannot be explained by the interactions with vascular plants, the cover of which is <5% (Table 1) in all experimental plots and for which no obvious change was observed over the study period.…”

Section: Warming and N Addition Affect The Bryophyte Communitysupporting

confidence: 92%

“…; Alatalo et al. ). Global change effects on sub‐alpine vegetation, bryophytes in particular, have, however, been addressed in few studies.…”

Section: Introductionmentioning

confidence: 97%

“…In contrast, available information indicates that increasing N deposition causes loss of species richness and cover (Pearce et al 2003;Strengbom & Nordin 2008), but in a site-or ecosystem-specific manner (Lang et al 2012) determined by the altered climatic conditions being favourable or unfavourable for bryophyte growth (Økland et al 2004). For example, warming and N deposition treatments caused a greater decrease in the abundance of bryophytes in meadow than in heath ecosystems (J€ agerbrand et al 2009;Alatalo et al 2015). Global change effects on sub-alpine vegetation, bryophytes in particular, have, however, been addressed in few studies.…”

Section: Introductionmentioning

confidence: 99%

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

Sun

Wang

Chang

et al. 2016

J Vegetation Science

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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 particular, however, have been addressed in few studies. We ask if global warming and increased nitrogen (N) deposition, two of the most important components of global change, will have different effects on bryophyte communities and species in sub‐alpine coniferous and shrubland ecosystems. Location Eastern slope of the Tibetan Plateau. Methods We established a warming by N deposition experiment, using a 2 × 2 factorial design, replicated three times, in each of two sub‐alpine ecosystems. Effects on bryophytes at the community and species levels were evaluated after 4 (shrubland) and 5 (coniferous forest) years of warming and N deposition treatments. Results Bryophyte cover increased in the first two growing seasons and thereafter decreased until the end of the experiment in all treatments, most strongly in warming plots in both ecosystems and in N deposition plots in the coniferous forest. At the species level, the pleurocarpous bryophyte Pleurozium schreberi was resilient to warming but sensitive to N deposition, while the acrocarpous bryophytes Rhizomnium tuomikoskii and Racomitrium japonicum were resilient to N addition but sensitive to warming. Conclusions Effects of warming and increased N deposition on bryophytes were species‐ and to some extent also ecosystem‐specific in the experiment in the sub‐alpine region, indicating that bryophytes do not respond to global change as one single functional group. The observed species replacements in response to warming and N deposition may affect ecosystem processes.

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Section: Warming and N Addition Affect The Bryophyte Communitysupporting

confidence: 92%

“…; Alatalo et al. ). Global change effects on sub‐alpine vegetation, bryophytes in particular, have, however, been addressed in few studies.…”

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Sun

Wang

Chang

et al. 2016

J Vegetation Science

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“…For instance, under moderate climate change, some snowbed species were recently observed to plastically respond to new environmental conditions19. Short and longer-term responses may also differ202122, and extreme climatic events may cause complex responses of plant communities23. However we state that it seems logical and practical to assign higher priority to those plant species whose assisted colonization is more likely to be successful for the longest possible period as a result of the application of spatio-temporal modelling prior to in situ realization.…”

Section: Discussionmentioning

confidence: 99%

Planning for assisted colonization of plants in a warming world

Ferrarini

Selvaggi

Abeli

et al. 2016

Sci Rep

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Assisted colonization is one way of facilitating range shifts for species that are restricted in their ability to move in response to climate change. Here we conceptualize and apply a new decision framework for modelling assisted colonization of plant species prior to in situ realization. Three questions were examined: a) Is species translocation useful in a certain area? b) where, and c) how long will it be successful in the future? Applying our framework to Carex foetida in Italy at the core of its distribution and its southern edge revealed that assisted colonization could be successful in short-term (2010–2039) climate conditions, partially in medium (2040–2069) but not in long-term (2070–2099) scenarios. We show that, for some species, it is likely that assisted colonization would be successful in some portions of the recipient site under current and short-term climate conditions, but over the mid- and long-term, climate changes will make species translocation unsuccessful. The proposed decision framework can help identify species that will need different conservation actions (seed banks and/or botanical gardens) when assisted colonization is unlikely to be successful. Furthermore it has broad applicability, as it can support planning of assisted migration in mountainous areas in the face of climate change.

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“…Thus, it appears that symbiotic interactions in lichens can react very sensitively to environmental change although this conclusion is based on a small database, and these responses have been investigated only in a few species (Allen and Lendemer 2016;Colesie et al 2014b;Sancho et al 2017). In general, there is agreement that climatic changes will influence the diversity, abundance and growth of lichens (Sancho et al 2017) and that lichens therefore represent excellent bioindicators for processes associated with global warming (Alatalo et al 2015;Allen and Lendemer 2016;Bassler et al 2016;Sancho et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Myco- and photobiont associations in crustose lichens in the McMurdo Dry Valleys (Antarctica) reveal high differentiation along an elevational gradient

Wagner

Bathke²,

Cary

et al. 2019

Preprint

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The climate conditions of the McMurdo Dry Valleys (78° S) are characterized by low temperatures and low precipitation. The annual temperatures at the valley bottoms have a mean range from -30 °C to -15 °C and decrease with elevation. Precipitation occurs mostly in form of snow (3-50 mm a -1 water equivalent) and, liquid water is rare across much of the landscape for most of the year and represents the primary limitation to biological activity. Snow delivered off the polar plateau by drainage winds, dew and humidity provided by clouds and fog are important water sources for rock inhibiting crustose lichens. In addition, the combination of the extremely low humidity and drying caused by foehn winds, confined to lower areas of the valleys, with colder and moister air at higher altitudes creates a strongly improving water availability gradient with elevation.We investigated the diversity and interaction specificity of myco-/photobiont associations of a total of 232 crustose lichen specimens, collected along an elevational gradient (171-959 m a.s.l.) within the McMurdo Dry Valleys with regard to the spatial distribution caused by climatological and geographical factors. For the identification of the mycobiont and photobiont species three markers each were amplified (nrITS, mtSSU, RPB1 and nrITS, COX2, respectivley). Elevation, associated with a water availability gradient, turned out to be the key factor explaining most of the distribution patterns of the mycobionts. Pairwise comparisons showed Lecidea cancriformis and Rhizoplaca macleanii to be significantly more common at higher, and Carbonea vorticosa and Lecidea polypycnidophora at lower, elevations. Lichen photobionts were dominated by the globally distributed Trebouxia OTU, Tr_A02 which occurred at all habitats. Network specialization resulting from mycobiont-photobiont bipartite network structure varied with elevation and associated abiotic factors.Along an elevational gradient, the spatial distribution, diversity and genetic variability of the lichen symbionts appear to be mainly influenced by improved water relations at higher altitudes.

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Testing reliability of short-term responses to predict longer-term responses of bryophytes and lichens to environmental change

Cited by 35 publications

References 57 publications

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

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

Planning for assisted colonization of plants in a warming world

Myco- and photobiont associations in crustose lichens in the McMurdo Dry Valleys (Antarctica) reveal high differentiation along an elevational gradient

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