Oceanic and temperate rainforest climates and their epiphyte indicators in Britain

Ellis, Christopher J.

doi:10.1016/j.ecolind.2016.06.002

Cited by 37 publications

(25 citation statements)

References 24 publications

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“…Excess hydration often causes depression of photosynthesis in lichens (Lange & Green 1996). A low WHC external may reduce the risk of prolonged suprasaturation in cephalolichens studied, and might explain not only why such lichens were much less damaged than a range of chlorolichens during a prolonged, very wet period (Gauslaa 2002) but also why these cephalolichens often characterize rainforests (Ellis 2016).…”

Section: Discussionmentioning

confidence: 99%

Hydration traits in cephalolichen members of the epiphytic old forest genusLobaria(s. lat.)

2017

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This study aims to quantify the size-dependency of important hydration traits in Lobaria amplissima, L. pulmonaria and L. virens sampled in sympatric populations on deciduous tree trunks in southern Norway, and to discuss possible implications of species-specific traits for the ecological niches of these old forest cephalolichens. Traits measured were thallus size (area and mass), specific thallus mass (STM), internal (WHCinternal) and external water-holding capacity (WHCexternal), and water content (WC) after shaking and after blotting. Lobaria amplissima had the highest WHCinternal, 2·6 times higher than L. pulmonaria with the lowest WHCinternal. WHCinternal, driven by STM, strongly depended on size. WHCexternal was 28% (L. virens) to 47% (L. pulmonaria) of the WHCinternal. Unlike WHCinternal, WHCexternal did not depend on thallus area, meaning that WHCexternal is proportionally higher for smaller compared with larger thalli. The most widespread species, L. pulmonaria, benefits from a flexible hydration strategy due to low STM, facilitating the use of more diverse water sources than the other two species that depend more on rain, particularly L. amplissima with the highest STM and thus relatively high WHCinternal. For L. virens, a combination of less specialized hydration traits and a low tolerance to higher light intensity probably jeopardizes its survival outside rainforest habitats.

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Section: Discussionmentioning

confidence: 99%

Hydration traits in cephalolichen members of the epiphytic old forest genusLobaria(s. lat.)

2017

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“…Bermuda tested a new rapid assessment tool which has the potential to accelerate assessments across the UKOTs (Bachman, Walker, Bárrios, Copeland, & Moat, 2020). There is one approved Red List for non-lichenized fungi in Britain (Ainsworth et al, 2013) (James, Hawksworth, & Rose, 1977) and the UK has international responsibility for the conservation of 30 of these species (Ellis, 2016;Woods & Coppins, 2012). These communities are now highly fragmented due to habitat loss through land-use inten- Among more widespread threats like climate change and pollution, ash dieback presents a new serious threat for epiphytic lichens.…”

Section: Ukots Plantsmentioning

confidence: 99%

Current knowledge, status, and future for plant and fungal diversity in Great Britain and the UK Overseas Territories

Clubbe

Ainsworth

Bárrios

et al. 2020

Plants People Planet

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“…Climate change is expected to result in a set of nonanalogue climatic conditions with no counterpart in the present-day [112,113], bringing into question model projection (extrapolation) from the baseline climate (used to develop and test species bioclimatic response) to climate change scenarios. Significantly, this nonanalogue situation appears to apply to ecosystems that have globally important lichen diversity, such as European temperate rainforest [114,115].…”

Section: Challenge 3: Nonanalogue Climates and Functional Bioclimaticmentioning

confidence: 99%

Climate Change, Bioclimatic Models and the Risk to Lichen Diversity

Ellis

2019

Diversity

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This paper provides an overview of bioclimatic models applied to lichen species, supporting their potential use in this context as indicators of climate change risk. First, it provides a brief summary of climate change risk, pointing to the relevance of lichens as a topic area. Second, it reviews the past use of lichen bioclimatic models, applied for a range of purposes with respect to baseline climate, and the application of data sources, statistical methods, model extents and resolution and choice of predictor variables. Third, it explores additional challenges to the use of lichen bioclimatic models, including: 1. The assumption of climatically controlled lichen distributions, 2. The projection to climate change scenarios, and 3. The issue of nonanalogue climates and model transferability. Fourth, the paper provides a reminder that bioclimatic models estimate change in the extent or range of a species suitable climate space, and that an outcome will be determined by vulnerability responses, including potential for migration, adaptation, and acclimation, within the context of landscape habitat quality. The degree of exposure to climate change, estimated using bioclimatic models, can help to inform an understanding of whether vulnerability responses are sufficient for species resilience. Fifth, the paper draws conclusions based on its overview, highlighting the relevance of bioclimatic models to conservation, support received from observational data, and pointing the way towards mechanistic approaches that align with field-scale climate change experiments.

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Oceanic and temperate rainforest climates and their epiphyte indicators in Britain

Cited by 37 publications

References 24 publications

Hydration traits in cephalolichen members of the epiphytic old forest genusLobaria(s. lat.)

Hydration traits in cephalolichen members of the epiphytic old forest genusLobaria(s. lat.)

Current knowledge, status, and future for plant and fungal diversity in Great Britain and the UK Overseas Territories

Climate Change, Bioclimatic Models and the Risk to Lichen Diversity

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