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Koch NM, Díaz Dominguez R, Fávaro A, Stanton D. Thallus hydrophobicity: A low-cost method for understanding lichen ecophysiological responses to environmental changes. APPLICATIONS IN PLANT SCIENCES 2024; 12:e11565. [PMID: 38638616 PMCID: PMC11022209 DOI: 10.1002/aps3.11565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/09/2023] [Accepted: 08/15/2023] [Indexed: 04/20/2024]
Abstract
Premise Methods to evaluate lichen thalli hydrophobicity have previously been described, but only recently has hydrophobicity been shown to be an important functional trait related to water regulation dynamics that could be used to predict future climate change effects. We describe a novel protocol to measure lichen thallus hydrophobicity that aims to be an easier and more affordable approach. Methods and Results Our protocol requires only a micropipette, distilled water, a tripod, and a smartphone or camera. Hydrophobicity is inferred from multiple metrics associated with the absorption times of standardized droplets (initial and total absorption time). We used a data set of 93 lichen taxa with different growth forms and from different biomes and demonstrated that this method is well suited for capturing different levels of hydrophobicity, including very hydrophilic species. Conclusions Our results show that this new protocol to measure lichen hydrophobicity is a rapid and low-cost method to assess an ecophysiologically based functional trait that can be used with almost no limitations, including in different climates, lichen species, and growth forms.
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Affiliation(s)
- Natália Mossmann Koch
- Department of Ecology, Evolution and BehaviorUniversity of MinnesotaSaint PaulMinnesotaUSA
| | - Raúl Díaz Dominguez
- Instituto de Investigaciones Biológicas y Tecnológicas, Centro de Ecología y Recursos Naturales Renovables, Facultad de Ciencias Exactas, Físicas y NaturalesUniversidad Nacional de CórdobaCórdobaArgentina
| | - Ana Fávaro
- Department of Ecology, Evolution and BehaviorUniversity of MinnesotaSaint PaulMinnesotaUSA
| | - Daniel Stanton
- Department of Ecology, Evolution and BehaviorUniversity of MinnesotaSaint PaulMinnesotaUSA
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2
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Delves J, Lewis JEJ, Ali N, Asad SA, Chatterjee S, Crittenden PD, Jones M, Kiran A, Prasad Pandey B, Reay D, Sharma S, Tshering D, Weerakoon G, van Dijk N, Sutton MA, Wolseley PA, Ellis CJ. Lichens as spatially transferable bioindicators for monitoring nitrogen pollution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 328:121575. [PMID: 37028790 DOI: 10.1016/j.envpol.2023.121575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/31/2023] [Accepted: 04/02/2023] [Indexed: 05/09/2023]
Abstract
Excess nitrogen is a pollutant and global problem that harms ecosystems and can severely affect human health. Pollutant nitrogen is becoming more widespread and intensifying in the tropics. There is thus a requirement to develop nitrogen biomonitoring for spatial mapping and trend analysis of tropical biodiversity and ecosystems. In temperate and boreal zones, multiple bioindicators for nitrogen pollution have been developed, with lichen epiphytes among the most sensitive and widely applied. However, the state of our current knowledge on bioindicators is geographically biased, with extensive research effort focused on bioindicators in the temperate and boreal zones. The development of lichen bioindicators in the tropics is further weakened by incomplete taxonomic and ecological knowledge. In this study we performed a literature review and meta-analysis, attempting to identify characteristics of lichens that offer transferability of bioindication into tropical regions. This transferability must overcome the different species pools between source information - drawing on extensive research effort in the temperate and boreal zone - and tropical ecosystems. Focussing on ammonia concentration as the nitrogen pollutant, we identify a set of morphological traits and taxonomic relationships that cause lichen epiphytes to be more sensitive, or more resistant to this excess nitrogen. We perform an independent test of our bioindicator scheme and offer recommendations for its application and future research in the tropics.
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Affiliation(s)
- Jay Delves
- Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh, EH3 5LR, UK
| | - Jason E J Lewis
- School of Life Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Niaz Ali
- Department of Botany, Hazara University, Mansehra, 21300, Pakistan
| | - Saeed A Asad
- Department of Biosciences, COMSATS University, Park Road Islamabad, 45550, Pakistan
| | - Sudipto Chatterjee
- TERI School of Advanced Studies, Plot No. 10 Institutional Area, Vasant Kunj, New Delhi, 110 070, India
| | - Peter D Crittenden
- School of Life Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Matthew Jones
- Centre of Ecology and Hydrology, Bush Estate, Penicuik, EH26 0QB, UK
| | - Aysha Kiran
- Department of Botany, University of Agriculture Faisalabad, Pakistan
| | | | - David Reay
- School of Geosciences, University of Edinburgh, High School Yards, Infirmary Street, Edinburgh, EH1 1LZ, UK
| | - Subodh Sharma
- Kathmandu University, Nepal GPO Box 6250, Kathmandu, Nepal
| | - Dendup Tshering
- Sherubtse College, Royal University of Bhutan, PO Box, 11001, Lower Motithang, Thimphu, Bhutan
| | | | - Netty van Dijk
- Centre of Ecology and Hydrology, Bush Estate, Penicuik, EH26 0QB, UK
| | - Mark A Sutton
- Centre of Ecology and Hydrology, Bush Estate, Penicuik, EH26 0QB, UK
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3
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Porada P, Bader MY, Berdugo MB, Colesie C, Ellis CJ, Giordani P, Herzschuh U, Ma Y, Launiainen S, Nascimbene J, Petersen I, Raggio Quílez J, Rodríguez-Caballero E, Rousk K, Sancho LG, Scheidegger C, Seitz S, Van Stan JT, Veste M, Weber B, Weston DJ. A research agenda for nonvascular photoautotrophs under climate change. THE NEW PHYTOLOGIST 2023; 237:1495-1504. [PMID: 36511294 DOI: 10.1111/nph.18631] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Nonvascular photoautotrophs (NVP), including bryophytes, lichens, terrestrial algae, and cyanobacteria, are increasingly recognized as being essential to ecosystem functioning in many regions of the world. Current research suggests that climate change may pose a substantial threat to NVP, but the extent to which this will affect the associated ecosystem functions and services is highly uncertain. Here, we propose a research agenda to address this urgent question, focusing on physiological and ecological processes that link NVP to ecosystem functions while also taking into account the substantial taxonomic diversity across multiple ecosystem types. Accordingly, we developed a new categorization scheme, based on microclimatic gradients, which simplifies the high physiological and morphological diversity of NVP and world-wide distribution with respect to several broad habitat types. We found that habitat-specific ecosystem functions of NVP will likely be substantially affected by climate change, and more quantitative process understanding is required on: (1) potential for acclimation; (2) response to elevated CO2 ; (3) role of the microbiome; and (4) feedback to (micro)climate. We suggest an integrative approach of innovative, multimethod laboratory and field experiments and ecophysiological modelling, for which sustained scientific collaboration on NVP research will be essential.
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Affiliation(s)
- Philipp Porada
- Ecological Modelling, Universität Hamburg, Ohnhorststr. 18, 22609, Hamburg, Germany
| | - Maaike Y Bader
- Ecological Plant Geography, University of Marburg, Deutschhausstr. 10, 35032, Marburg, Germany
| | - Monica B Berdugo
- Ecological Plant Geography, University of Marburg, Deutschhausstr. 10, 35032, Marburg, Germany
| | - Claudia Colesie
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3JW, UK
| | | | | | - Ulrike Herzschuh
- Polar Terrestrial Environmental Systems, Alfred Wegener Institute, Telegrafenberg A45, 14473, Potsdam, Germany
| | - Yunyao Ma
- Ecological Modelling, Universität Hamburg, Ohnhorststr. 18, 22609, Hamburg, Germany
| | - Samuli Launiainen
- Ecosystems and Modeling, Natural Resources Institute Finland (Luke), Latokartanonkaari 9, 00790, Helsinki, Finland
| | - Juri Nascimbene
- BIOME Lab, Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, 40126, Bologna, Italy
| | - Imke Petersen
- Ecological Modelling, Universität Hamburg, Ohnhorststr. 18, 22609, Hamburg, Germany
| | - José Raggio Quílez
- Department of Pharmacology, Pharmacognosy and Botany, Universidad Complutense de Madrid, E-28040, Madrid, Spain
| | | | - Kathrin Rousk
- Department of Biology, University of Copenhagen, Universitetsparken 15, 2100, København, Denmark
| | - Leopoldo G Sancho
- Department of Pharmacology, Pharmacognosy and Botany, Universidad Complutense de Madrid, E-28040, Madrid, Spain
| | - Christoph Scheidegger
- Biodiversity and Conservation Biology, Eidg. Forschungsanstalt WSL, Zürcherstr. 111, 8903, Birmensdorf, Switzerland
| | - Steffen Seitz
- Soil Science and Geomorphology, University of Tübingen, Rümelinstr. 19-23, 72070, Tübingen, Germany
| | - John T Van Stan
- Department of Biological, Geological, and Environmental Sciences, Cleveland State University, 2121 Euclid Ave., Cleveland, OH, 44115, USA
| | - Maik Veste
- Institute of Environmental Sciences, Brandenburgische Technische Universität Cottbus-Senftenberg, Konrad-Wachsmann-Allee 6, 03046, Cottbus, Germany
| | - Bettina Weber
- Division of Plant Sciences, Institute for Biology, University of Graz, Holteigasse 6, A-8010, Graz, Austria
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128, Mainz, Germany
| | - David J Weston
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
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4
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Stanton DE, Ormond A, Koch NM, Colesie C. Lichen ecophysiology in a changing climate. AMERICAN JOURNAL OF BOTANY 2023; 110:e16131. [PMID: 36795943 DOI: 10.1002/ajb2.16131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 06/18/2023]
Abstract
Lichens are one of the most iconic and ubiquitous symbioses known, widely valued as indicators of environmental quality and, more recently, climate change. Our understanding of lichen responses to climate has greatly expanded in recent decades, but some biases and constraints have shaped our present knowledge. In this review we focus on lichen ecophysiology as a key to predicting responses to present and future climates, highlighting recent advances and remaining challenges. Lichen ecophysiology is best understood through complementary whole-thallus and within-thallus scales. Water content and form (vapor or liquid) are central to whole-thallus perspectives, making vapor pressure differential (VPD) a particularly informative environmental driver. Responses to water content are further modulated by photobiont physiology and whole-thallus phenotype, providing clear links to a functional trait framework. However, this thallus-level perspective is incomplete without also considering within-thallus dynamics, such as changing proportions or even identities of symbionts in response to climate, nutrients, and other stressors. These changes provide pathways for acclimation, but their understanding is currently limited by large gaps in our understanding of carbon allocation and symbiont turnover in lichens. Lastly, the study of lichen physiology has mainly prioritized larger lichens at high latitudes, producing valuable insights but underrepresenting the range of lichenized lineages and ecologies. Key areas for future work include improving geographic and phylogenetic coverage, greater emphasis on VPD as a climatic factor, advances in the study of carbon allocation and symbiont turnover, and the incorporation of physiological theory and functional traits in our predictive models.
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Affiliation(s)
- Daniel E Stanton
- Department of Ecology, Evolution and Behavior, University of Minnesota, 140 Gortner Laboratory, 1479 Gortner Avenue, Saint Paul, MN, 55108, USA
| | - Amaris Ormond
- Global Change Institute, School of GeoSciences, University of Edinburgh, Crew Building, Alexander Crum Brown Road, Edinburgh, EH3 9FF, UK
| | - Natalia M Koch
- Department of Ecology, Evolution and Behavior, University of Minnesota, 140 Gortner Laboratory, 1479 Gortner Avenue, Saint Paul, MN, 55108, USA
| | - Claudia Colesie
- Global Change Institute, School of GeoSciences, University of Edinburgh, Crew Building, Alexander Crum Brown Road, Edinburgh, EH3 9FF, UK
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Chaudhary VB, Holland EP, Charman-Anderson S, Guzman A, Bell-Dereske L, Cheeke TE, Corrales A, Duchicela J, Egan C, Gupta MM, Hannula SE, Hestrin R, Hoosein S, Kumar A, Mhretu G, Neuenkamp L, Soti P, Xie Y, Helgason T. What are mycorrhizal traits? Trends Ecol Evol 2022; 37:573-581. [PMID: 35504748 DOI: 10.1016/j.tree.2022.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 04/02/2022] [Accepted: 04/06/2022] [Indexed: 12/29/2022]
Abstract
Traits are inherent properties of organisms, but how are they defined for organismal networks such as mycorrhizal symbioses? Mycorrhizal symbioses are complex and diverse belowground symbioses between plants and fungi that have proved challenging to fit into a unified and coherent trait framework. We propose an inclusive mycorrhizal trait framework that classifies traits as morphological, physiological, and phenological features that have functional implications for the symbiosis. We further classify mycorrhizal traits by location - plant, fungus, or the symbiosis - which highlights new questions in trait-based mycorrhizal ecology designed to charge and challenge the scientific community. This new framework is an opportunity for researchers to interrogate their data to identify novel insights and gaps in our understanding of mycorrhizal symbioses.
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Affiliation(s)
- V Bala Chaudhary
- Department of Environmental Studies, Dartmouth College, Hanover, NH 03755, USA.
| | | | | | - Aidee Guzman
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Lukas Bell-Dereske
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Tanya E Cheeke
- School of Biological Sciences, Washington State University, Richland, WA 99354, USA
| | - Adriana Corrales
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá 110151, Colombia
| | - Jessica Duchicela
- Departamento de Ciencias de la Vida, Universidad de las Fuerzas Armadas ESPE, Sangolquí 171103, Ecuador
| | - Cameron Egan
- Department of Biology, Okanagan College, 1000 KLO Rd, Kelowna, BC, Canada V1Y 4X8
| | - Manju M Gupta
- Department of Biology, University of Delhi, Sri Aurobindo College, Delhi 110017, India
| | - S Emilia Hannula
- Institute of Environmental Sciences, Leiden University, Leiden 2333, The Netherlands
| | - Rachel Hestrin
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Shabana Hoosein
- Department of Forest and Rangeland Stewardship, Colorado State University, Fort Collins, CO 80523, USA
| | - Amit Kumar
- Institute of Ecology, Faculty of Sustainability, Leuphana University of Lüneburg, 21335 Lüneburg, Germany
| | - Genet Mhretu
- Department of Biology, Mekelle University, Mekelle 231, Ethiopia
| | - Lena Neuenkamp
- University of Bern, Institute of Plant Sciences, Berne 3013, Switzerland; Department of Ecology and Multidisciplinary Institute for Environment Studies 'Ramon Margalef', University of Alicante, Alicante 03009, Spain
| | - Pushpa Soti
- Biology Department, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
| | - Yichun Xie
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong SAR 999077
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6
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Di Nuzzo L, Benesperi R, Nascimbene J, Papini A, Malaspina P, Incerti G, Giordani P. Little time left. Microrefuges may fail in mitigating the effects of climate change on epiphytic lichens. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 825:153943. [PMID: 35189219 DOI: 10.1016/j.scitotenv.2022.153943] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/31/2022] [Accepted: 02/13/2022] [Indexed: 06/14/2023]
Abstract
Climate change is already causing considerable reductions in biodiversity in all terrestrial ecosystems. These consequences are expected to be exacerbated in biomes that are particularly exposed to change, such as those in the Mediterranean, and in certain groups of more sensitive organisms, such as epiphytic lichens. These poikylohydric organisms find suitable light and water conditions on trunks under the tree canopy. Despite their small size, epiphytic communities contribute significantly to the functionality of forest ecosystems. In this work, we surveyed epiphytic lichen communities in a Mediterranean area (Sardinia, Italy) and hypothesized that 1) the effect of microclimate on lichens at tree scale is mediated by the functional traits of these organisms and that 2) micro-refuge trees with certain morphological characteristics can mitigate the negative effects of future climate change. Results confirm the first hypothesis, while the second is only partially supported, suggesting that the capability of specific trees to host specific conditions may not be sufficient to maintain the diversity and ecosystem functionality of lichen communities in the Mediterranean.
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Affiliation(s)
- Luca Di Nuzzo
- Department of Biology, University of Florence, Via La Pira 4, 50121 Florence, Italy
| | - Renato Benesperi
- Department of Biology, University of Florence, Via La Pira 4, 50121 Florence, Italy.
| | - Juri Nascimbene
- BIOME Lab, Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum - University of Bologna, Via Irnerio 42, 40126 Bologna, Italy
| | - Alessio Papini
- Department of Biology, University of Florence, Via La Pira 4, 50121 Florence, Italy
| | | | - Guido Incerti
- Department of Agri-Food, Animal and Environmental Sciences, University of Udine, 33100 Udine, Italy
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7
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Distribution Types of Lichens in Hungary That Indicate Changing Environmental Conditions. J Fungi (Basel) 2022; 8:jof8060600. [PMID: 35736083 PMCID: PMC9225213 DOI: 10.3390/jof8060600] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 12/29/2022] Open
Abstract
Simple Summary As the occurrences of lichens are strongly correlated to background environmental conditions (e.g., air pollution, global warming), the analysis of their distribution has a great value for bioindication. Distribution data are originating from earlier herbarium collections, recent field and literature studies. The distribution analyses in lichen species with different ecological requirements allowed comparisons and showed clear trends. Five distribution types were introduced—presented by characteristic examples—according to lichen distribution maps prepared in different periods of time (representing changing environmental conditions): (1) species of decreasing occurrences by time (acidic pollution sensitive species), (2) species with no or few former records but with increasing occurrences in recent decades (sub-Mediterranean species), (3) species with increasing and then (from c. 2000) decreasing occurrences (acidofrequent species), (4) species with widely increasing occurrences in recent decades (nitrofrequent species), and (5) species with rapidly increasing occurrences (rapidly spreading species of uncertain reasons). The discussed trends are known for some species at a global scale or European level, other examples are characteristic for Central Europe or Hungary. By studying the distribution maps of lichen bioindicators, tendencies of climate change and type of pollution can be determined and further changes can be predicted. Abstract Distribution data originating from earlier herbarium collections and recent biodiversity records form the basis of distribution analyses in lichen species with different ecological requirements, where the records allowed comparisons or showed clear trends. As the occurrences of lichens are strongly correlated to background environmental conditions (e.g., air pollution, global warming), confirmed by Wirth’s ecological indicator values, the analysis of distribution types has a great value for bioindication and the establishment of current and future climatic and pollution situations. Five distribution types were introduced—presented by characteristic examples (13)—according to lichen distribution maps prepared in different periods of time (representing changing environmental conditions): (1) species of decreasing occurrences by time (e.g., Lobaria pulmonaria, Menegazzia terebrata, suboceanic, acidic pollution sensitive species), (2) species with no or few former records but with increasing occurrences in recent decades (e.g., Flavoparmelia soredians, Hyperphyscia adglutinata, Solenopsora candicans, sub-Mediterranean species), (3) species with increasing and then (from c. 2000) decreasing occurrences (e.g., Scoliciosporum chlorococcum, Straminella conizaeoides, acidofrequent species), (4) species with widely increasing occurrences in recent decades (e.g., Physcia aipolioides, Piccolia ochrophora, Xanthoria parietina, nitrofrequent species), and (5) species with rapidly increasing occurrences (e.g., Absconditella lignicola, Coenogonium pineti, Evernia divaricata, rapidly spreading species). The proposed distribution types of lichen species may be applied to wider regions (the European or the global level).
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Trobajo S, Fernández-Salegui AB, Terrón A, Martínez I. Functional traits of epiphytic lichen communities in a Temperate-Mediterranean fragmented landscape: Importance of patch size, tree diameter and summer rainfall. FUNGAL ECOL 2022. [DOI: 10.1016/j.funeco.2022.101160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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9
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Esseen P, Ekström M, Grafström A, Jonsson BG, Palmqvist K, Westerlund B, Ståhl G. Multiple drivers of large-scale lichen decline in boreal forest canopies. GLOBAL CHANGE BIOLOGY 2022; 28:3293-3309. [PMID: 35156274 PMCID: PMC9310866 DOI: 10.1111/gcb.16128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Thin, hair-like lichens (Alectoria, Bryoria, Usnea) form conspicuous epiphyte communities across the boreal biome. These poikilohydric organisms provide important ecosystem functions and are useful indicators of global change. We analyse how environmental drivers influence changes in occurrence and length of these lichens on Norway spruce (Picea abies) over 10 years in managed forests in Sweden using data from >6000 trees. Alectoria and Usnea showed strong declines in southern-central regions, whereas Bryoria declined in northern regions. Overall, relative loss rates across the country ranged from 1.7% per year in Alectoria to 0.5% in Bryoria. These losses contrasted with increased length of Bryoria and Usnea in some regions. Occurrence trajectories (extinction, colonization, presence, absence) on remeasured trees correlated best with temperature, rain, nitrogen deposition, and stand age in multinomial logistic regression models. Our analysis strongly suggests that industrial forestry, in combination with nitrogen, is the main driver of lichen declines. Logging of forests with long continuity of tree cover, short rotation cycles, substrate limitation and low light in dense forests are harmful for lichens. Nitrogen deposition has decreased but is apparently still sufficiently high to prevent recovery. Warming correlated with occurrence trajectories of Alectoria and Bryoria, likely by altering hydration regimes and increasing respiration during autumn/winter. The large-scale lichen decline on an important host has cascading effects on biodiversity and function of boreal forest canopies. Forest management must apply a broad spectrum of methods, including uneven-aged continuous cover forestry and retention of large patches, to secure the ecosystem functions of these important canopy components under future climates. Our findings highlight interactions among drivers of lichen decline (forestry, nitrogen, climate), functional traits (dispersal, lichen colour, sensitivity to nitrogen, water storage), and population processes (extinction/colonization).
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Affiliation(s)
- Per‐Anders Esseen
- Department of Ecology and Environmental ScienceUmeå UniversityUmeåSweden
| | - Magnus Ekström
- Department of Statistics, USBEUmeå UniversityUmeåSweden
- Department of Forest Resource ManagementSwedish University of Agricultural SciencesUmeåSweden
| | - Anton Grafström
- Department of Forest Resource ManagementSwedish University of Agricultural SciencesUmeåSweden
| | - Bengt Gunnar Jonsson
- Department of Natural SciencesMid Sweden UniversitySundsvallSweden
- Department of Fish, Wildlife and Environmental SciencesSwedish University of Agricultural SciencesUmeåSweden
| | - Kristin Palmqvist
- Department of Ecology and Environmental ScienceUmeå UniversityUmeåSweden
| | - Bertil Westerlund
- Department of Forest Resource ManagementSwedish University of Agricultural SciencesUmeåSweden
| | - Göran Ståhl
- Department of Forest Resource ManagementSwedish University of Agricultural SciencesUmeåSweden
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10
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Trobajo S, Fernández-Salegui AB, Hurtado P, Terrón A, Martínez I. Interspecific and intraspecific variability of water use traits in macrolichen species in a fragmented landscape along a climatic ecotone area. Fungal Biol 2022; 126:438-448. [DOI: 10.1016/j.funbio.2022.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 04/24/2022] [Accepted: 04/28/2022] [Indexed: 11/16/2022]
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11
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Roos RE, Birkemoe T, Bokhorst S, Wardle DA, Asplund J. The importance of foundation species identity: a field experiment with lichens and their associated micro-arthropod communities. Basic Appl Ecol 2022. [DOI: 10.1016/j.baae.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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12
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Phinney NH, Asplund J, Gauslaa Y. The lichen cushion: A functional perspective of color and size of a dominant growth form on glacier forelands. Fungal Biol 2022; 126:375-384. [DOI: 10.1016/j.funbio.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 02/14/2022] [Accepted: 03/11/2022] [Indexed: 11/04/2022]
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13
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Mallen‐Cooper M, Cornwell WK. Tissue chemistry of biocrust species along an aridity gradient and comparison to vascular plant leaves. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Max Mallen‐Cooper
- Ecology and Evolution Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
- Centre for Ecosystem Science School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
| | - William K. Cornwell
- Ecology and Evolution Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
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14
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Roos RE, Asplund J, van Zuijlen K. Covered by a blanket of lichens: how mat-forming lichens affect microclimate and ecological processes. A commentary on: 'Lichens buffer tundra microclimate more than the expanding shrub Betula nana'. ANNALS OF BOTANY 2021; 128:i-iii. [PMID: 34374710 PMCID: PMC8414920 DOI: 10.1093/aob/mcab075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This article comments on:Max Mallen-Cooper, Bente J. Graae and Will K. Cornwell. Lichens buffer tundra microclimate more than the expanding shrub Betula nana, Annals of Botany, Volume 128, Issue 4, 3 September 2021, Pages 407–418, https://doi.org/10.1093/aob/mcab041
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Affiliation(s)
- Ruben E Roos
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Aas, Norway
| | - Johan Asplund
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Aas, Norway
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