Kenneth A Kershaw FRSC (1930–2019)

Graham Harris compared photosynthetic responses among lichen species occupying different elevational niches in tree canopies using a technique that enabled net CO2-exchange to be tracked as a lichen thallus dried, an approach that Ken would go on to develop further. The main thrust of this research...

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Bibliographic Details
Published in:The Lichenologist (London) 2020-05, Vol.52 (3), p.183-185
Main Author: Crittenden, P. D.
Format: Article
Language:English
Subjects:
Animal attacks
Carbon dioxide
Environmental control
Firearms
Lichens
Microclimate
Niches
Nitrogenase
Photosynthesis
Physiology
Plant communities
Plant ecology
Regional development
Seasonal variation
Seasonal variations
Stereocaulon
Students
Taiga & tundra
Teaching
Thallus
Thermal stress
Woodlands
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Summary:Graham Harris compared photosynthetic responses among lichen species occupying different elevational niches in tree canopies using a technique that enabled net CO2-exchange to be tracked as a lichen thallus dried, an approach that Ken would go on to develop further. The main thrust of this research was the identification of pattern in lichen-dominated plant communities and explaining the observed patterns in terms of variation in, and lichen response to, microclimate. Subsequent papers in the series dealt with lichen-dominated woodland, including a description of the fire-induced cyclic succession in which Stereocaulon woodland is an intermediate stage17, and an analysis of regional climatic differences underlying the contrasting development of Stereocaulon woodland in north-central Canada and Cladonia-dominated forest in other regions18. Concurrent with this subarctic research, Ken published 17 papers in the series Physiological-environmental interactions in lichens19 in the New Phytologist, largely dealing with seasonal changes in photosynthetic capacity and nitrogenase activity in Peltigera spp. collected in the Hamilton region, but also including work on such topics as the environmental control of carbon movement from photobiont to mycobiont, and thermal stress in lichens20.
ISSN:0024-2829
1096-1135
DOI:10.1017/S0024282920000195