The 8th IAL Symposium Lichens in Deep Time August 1–5, 2016 Helsinki, Finland IAL8 Abstracts Welcome Messages, pages 3, 5 Opening Address, page 7 Abstracts of keynote lectures, pages 10–17 Abstracts of oral presentations, pages 21–82 Abstracts of poster presentations, pages 85–200 Welcome Message The President of the International Association of Lichenology Dear Fellow Lichenologist, It is a great pleasure for me to welcome you to IAL8 in Helsinki on behalf of the IAL Council and the Scientific Thorsten Lumbsch Committee of the symposium. IAL President Since the inaugural IAL meeting in Münster in March 1986, our society has had tremendously successful and enjoyable meetings. I still remember the first meeting when, for the first time, I met a number of prestigious colleagues and – as an The 8 undergraduate student – could interact with colleagues in a relaxed atmosphere. These meetings are especially vital for th students and early career scientists where they can interact – Lichens in Deep Time IAL Symposium with colleagues and build networks. Older scientists, like myself, can pass on essential guidance to younger scholars, while at the same time also learn from their new and bright ideas. We are confident that this 8th Symposium in Helsinki will be equally as memorable as the previous ones. Helsinki has a rich history and tradition in lichenological research and we are looking forward to this event, entitled ”Lichens in Deep Time”. Contributions to the symposium will reflect the latest trends in using genomic data to better understand the lichen symbiosis and the evolutionary history of its partners, have a strong part in ecological studies, address the threats imposed by rapid man-made changes occurring to the biosphere and an ever-growing interest in tropical lichens. The topics discussed at the symposium will be as diverse as the field of lichenology itself is today. In addition to the scientific presentations and discussion, there is an opulent and exciting social program. Numerous excursions have been organized which I am confident will produce new friendships and collaborations. The scientific committee is optimistic that you will not only enjoy excellent science, but also engage in stimulating interaction with colleagues and a sense of community in one of the major capitals of lichenology. IAL8 • HELSINKI 2016 3 Welcome Message from the Local Organising Committee Dear Colleagues, It gives me great pleasure to welcome you on behalf of the local organising committee to IAL8. We are very excited to be hosting this important conference in Helsinki. We hope to follow in the successful footsteps of the previous IAL Marko Hyvärinen, symposia and make this event as enjoyable as the previous Chairman of the Local ones. Organising Committee Four and a half years ago, right after the inspiring 7th IAL Symposium in Bangkok, we started planning the content of The 8 its successor. During our first brainstorming sessions it was decided that the motto of the congress should be ”Lichens in th Deep Time”, referring to different timescales in evolution, – Lichens in Deep Time IAL Symposium ecology, and environmental change as well as in the history of lichenology. Our wide selection of sessions reflects this idea of exploring changes in lichens at different timescales and also changes in the way we perceive the very concept of a lichen. To our satisfaction this setting of sessions was well received by the lichenological community, and we now have more than 350 presentations to follow and enjoy during the congress week. The previous IAL symposia have proven to have a significant impact on the scientific activity in the field of lichenology in hosting countries. Invigorating our long tradition in lichen research is one of the major incentives for us to host the congress. However, together with the science we also want to celebrate public outreach. The ways to communicate the value of science and present the beauty of lichen diversity are variable and some of these ways are presented during the social programme of the week as well as in the pre- and post- congress excursions organised by our collaborators in the universities of Turku and Oulu. We in the Finnish Museum of Natural History ’Luomus’ are especially proud to announce the publication of the brand new book, ”Lichens of Finland” that is based on the award-winning Finnish books ”Suomen jäkäläopas” and ”Suomen rupijäkälät”. We welcome you all, and particularly those of you, who have had to travel far to join us; we wish you all a pleasant and fruitful stay. Tervetuloa jäkälöitymään! (Welcome to get lichenized) IAL8 • HELSINKI 2016 5 Opening Address CEO, Finnish Museum of Natural History ’Luomus’ Dear Lichenologists, On behalf of the Finnish Museum of Natural history ’Luomus’ and the University of Helsinki, I am very pleased and happy to welcome all 300 delegates from 46 countries who have Leif Schulman, honoured us by taking part in IAL8 in Helsinki. Director of the Finnish Museum of Natural Lichens in Deep Time is a most suitable topic for a congress History ’Luomus’ at the University of Helsinki, which has a deep tradition in lichenology. This history is reflected in the exceptionally The 8 rich lichen collections that we at Luomus are proud to keep for current and future generations of researchers. They are a th part of Finland’s national natural history collections, the care – Lichens in Deep Time IAL Symposium of which is the core duty of Luomus. In addition, Luomus is constituted to conduct research on the collections and display them to the public. These duties are intertwined in a fruitful interaction – indeed like the symbionts of a lichenized fungus – and I hope you will have some time to familiarise yourselves with and benefit from all these resources of Luomus. I wish to express my warmest thanks to the IAL Council led by the President of the IAL, Thorsten Lumbsch and to the Local Organising Committee led by Marko Hyvärinen for their joint venture to build a platform for fascinating and informative scientific presentations. The scientific programme of the conference looks impressive and seems to address questions that have wide relevance far beyond the borders of lichenology. I hope that the exciting social programme will entail plenty of opportunities for stimulating conversations and relaxation. I wish you a productive symposium and fruitful discussions, and hope that IAL8 will have a major impact on the international community of lichenologists. IAL8 • HELSINKI 2016 7 IAL Council (2012–2016) President Helge Thorsten Lumbsch, The Field Museum of Natural History, USA Vice President Mats Wedin, Swedish Museum of Natural History, Sweden Secretary Sergio Pérez-Ortega, Museo Nacional de Ciencias Naturales, Spain Treasurer Volker Otte, Senckenberg Museum für Naturkunde Görlitz, Germany Assistant Treasurer Christian Printzen, Senckenberg Forschungsinstitut und Naturmuseum Frankfurt, Germany Editor Ave Suija, Institute of Ecology and Earth Sciences, University of Tartu, Estonia Members-at-Large Heidi Döring, Royal Botanic Gardens, Kew, UK, Jolanta Miadlikowska, Department of Biology, Duke University, USA, Adriano Spielmann, Universidade Federal de Mato Grosso do Sul, Brazil, Marko Hyvärinen, Finnish Museum of Natural History, Finland Auditor Ulf Arup, Botanical Museum, Lund University, Sweden KEYNOTE Vice Auditor Starri Heiðmarsson, Icelandic Institute of Natural History, Iceland Nomination Committee Peter D. Crittenden, The School of Biology, Biology Building, The University of Nottingham, UK, Bruce McCune, Dept. of Botany & Plant Pathology, Oregon State LECTURES University, USA, Leo Sancho, Departmento de Biologia Vegetal II, Facultad de Farmacia, Universidad Complutense, Spain IAL8 Organising committee Chair Marko Hyvärinen, Finnish Museum of Natural History ’LUOMUS’, University of Helsinki Members Soili Stenroos, Leena Myllys, Annina Launis, Raquel Pino Bodas, Laura Hiisivuori, Sampsa Lommi, Leena Helynranta, Leena Gustavsson & Hanna IAL Symposium – Lichens in Deep Time IAL Symposium th Lindgren (also the Field Museum, USA), Finnish Museum of Natural History ’LUOMUS’, University of Helsinki Seppo Huhtinen, Herbarium, University of Turku The 8 Juha Pykälä, Finnish Environment Institute Jouko Rikkinen, LUOMUS and the Dept. of Biological Sciences, University of Helsinki Jouni Aspi, Department of Biology, University of Oulu IAL8 Scientific Committee Chair Thorsten Lumbsch Members Marko Hyvärinen, Leena Myllys, Volker Otte, Sergio Pérez-Ortega, Juha Pykälä, Jouko Rikkinen, Soili Stenroos, Ave Suija, Mats Wedin 8 IAL8 • HELSINKI 2016 Mon 1 Aug 10.15–11.00 Room 1 • KEYNOTE 1 Dr. Silke Werth (Karl-Franzens-Universität Graz) has been an assistant professor (Universitätsassistentin) at Lichen population genetics in the era of high throughput the University of Graz since 2014. She has a diploma sequencing from the University of Tromsø (Norway) in lichen Silke Werth community ecology, and a PhD from the University of Berne (Switzerland). Her thesis on the dispersal Institute of Plant Sciences, University of Graz, Austria biology and population genetics of the tree lungwort, Population genetics deals with the distribution and amount of genetic variation in populations and with Lobaria pulmonaria was awarded in 2005. As a post changes of this variation over space and time. In the past decade, population genetics has received doc at the University of California, Los Angeles, she attention in lichenized fungi and their photobionts, mostly based on neutral markers. We have learnt