3 ms·
I'm not sure if that is quite accurate although it is plausible given the negative effect of hotter fires in traditionally fire controlled areas. I read into t
by zeagle 4y ago
I'm not sure if that is quite accurate although it is plausible given the negative effect of hotter fires in traditionally fire controlled areas. I read into this a couple years ago and found published data on increased harvests of morels in terms of kg/hectare after large forest fires [example from looking again today 1]. I think as humans we are biased to think above the ground and think of destruction.
There could be a a difference due to an intensely hot fire in an area where fires have been historically suppressed. There is a survey of pickers on whether hotter fires are more or less productive with 29% vs 54% [2] but I don't know the methadology.
[1] 'Approximately 250 000 ha of British Columbia forest lands were burnt (Filmon 2004). In the East Kootenay region alone, a total of 43 679 ha burned that year.
Based on this figure, the apparent correlation of morel production with recent wildfire exposure, and the morel production levels observed in random experimental plots (7568 morels per hectare), Keefer (2005) estimated that 76 × 107 kg ascocarps grew in the region in 2003. Assuming the average weight of morels harvested in the region matches the 20 g per ascocarp observed by Pilz et al. (2004) in the United States, this would amount to 2.27 × 107 kg of morels produced in the region during the first flush of 2004. The size and scope of subsequent flushes is unknown but based on observations of two additional flushes in the burnt forest at Lamb Creek (Winder and Keefer 2008), the actual size of the potential morel crop could be tripled from the above estimate' https://cdnsciencepub.com/doi/10.1139/B08-045 https://cdnsciencepub.com/doi/10.1139/B08-045
[2] https://central.bac-lac.gc.ca/.item?id=mr05125&op=pdf&app=Library&oclc_number=81600576 https://central.bac-lac.gc.ca/.item?id=mr05125&op=pdf&app=Li...
- empyrrhicist 4y agoDo those studies look long term though? Increased harvests is exactly what you'd expect from the phenomenon I described.
- zeagle 4y agoThat's a good point. I'm not sure. Some areas I pick edible mushrooms other that morels have not recovered from logging or fires short or long term so my individual anecdotal experience is no. I couldn't find good data on chanterelles or boletus species.