Newton, A., Holden, E., Davy, L.M., Ward, S.D., Fleming, L.V. and Watling, R., 2002. Status and Distribution of Stipitate Hydnoid Fungi in Scottish Coniferous Forests. Biological Conservation, 107 (2), pp. 181-192.
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Official URL: http://www.sciencedirect.com/science?_ob=ArticleUR...
Stipitate hydnoid fungi (specifically members of the genera Bankera, Hydnellum, Phellodon, Sarcodon) have become the focus of increasing conservation concern, particularly following the detection of widespread declines in abundance. To assess their status in Scotland, 103 field surveys were undertaken, including searches of 50 of the 77 native pinewood sites, traversing a total of 902 km. Hydnoid fungi were encountered on 30 of the searches (29%), primarily in eastern regions of Scotland. A maximum of 8 species was recorded on a single search, 11 species being encountered in total. Of 22 plantation sites surveyed, 11 were found to contain populations of hydnoid fungi. Four species were relatively widespread, both in native woodlands and plantations: Bankera fuligineoalba, Hydnellum peckii, Phellodon tomentosum, and Sarcodon imbricatus. All species tended to be associated with particular microsites, especially riverbanks, tracksides or areas of exposed mineral soil; median values for percentage bare ground cover surrounding each sporome were generally above 50%. Median values for diameter at breast height (dbh) of associated trees were in the range 20–50 cm for all species. Data from the field surveys were pooled with previous records to assess the number of hydnoid species recorded for each native pine woodland. When examined by regression, a positive relationship was recorded between the number of species and woodland area (r2=0.69, P<0.001, n=50). To assess the occurrence of declines, the number of 10 km gridsquares for each species was compared using records made pre- and post-1970. These data provided evidence for declines in only four of the 17 species considered. However, 12 species are threatened with extinction according to the IUCN Red List criteria, owing to their restricted patterns of distribution. The implications of these results for the conservation of hydnoid fungi in Scotland are discussed.
|Subjects:||Geography and Environmental Studies|
Science > Biology and Botany
|Group:||School of Applied Sciences > Centre for Conservation, Ecology and Environmental Change|
|Deposited By:||INVALID USER|
|Deposited On:||20 Nov 2008 17:12|
|Last Modified:||07 Mar 2013 14:56|
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