Emergence of morel (Morchella) and pixie cup (Geopyxis carbonaria) ascocarps in response to the intensity of forest floor combustion during a wildfire

  title={Emergence of morel (Morchella) and pixie cup (Geopyxis carbonaria) ascocarps in response to the intensity of forest floor combustion during a wildfire},
  author={David F. Greene and Michael Hesketh and Edith Pounden},
  pages={766 - 773}
We studied the density of ascocarps (mushrooms) of morels (Morchella) and pixie cups (Geopyxis carbonaria) as a function of postfire duff (forest floor organic layer) depth in the first 4 y after a wildfire. The great majority of ascocarps of both species appeared in the first summer (2004) after an Aug 2003 fire in predominantly pine-spruce montane stands in Kootenay National Park, British Columbia. The spatial distribution of the ascocarps of both species was strongly biased toward (i… Expand
Observations on post-fire black morel ascocarp development in an Israeli burnt forest site and their preferred micro-sites
Observations enhance understanding the ecological principles underlying the distribution and abundance of morel ascocarp development in natural habitats; such an understanding could contribute to conservation and management ofMorel fruiting in the wild. Expand
Post-fire morel (Morchella) mushroom abundance, spatial structure, and harvest sustainability
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Isotopic evidence indicates saprotrophy in post-fire Morchella in Oregon and Alaska
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Truffles and Morels: Two Different Evolutionary Strategies of Fungal-Plant Interactions in the Pezizales
This chapter describes and compares the two groups of mushrooms and takes a look at the evidence as to whether there are real trophic differences from those traditionally held and if things are not quite as simple as the authors' forebears would have had us believe. Expand
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Abstract Global fire regimes are changing, with increases in wildfire frequency and severity expected for many North American forests over the next 100 years. Fires can result in dramatic changes toExpand
Soil Bacterial and Fungal Response to Wildfires in the Canadian Boreal Forest Across a Burn Severity Gradient
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Wildfire severity reduces richness and alters composition of soil fungal communities in boreal forests of western Canada.
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The postfire discomycete Geopyxis carbonaria (Ascomycota) is a biotrophic root associate with Norway spruce (Picea abies) in nature
The hypothesis that the postfire discomycete Geopyxis carbonaria has a biotrophic association with roots of Norway spruce in nature was tested by isolation of fungal strains from fresh, brown, smooth mycorrhiza‐like root tips of NorwaySpruce collected from below the depth of detrimental heat penetration in a postfire site. Expand
Biotrophic associations between lodgepole pine seedlings and postfire ascomycetes (Pezizales) in monoxenic culture
Twenty-two species of postfire ascomycetes belonging to the order Pezizales were screened for biotrophic interactions with roots of lodgepole pine, and the only confirmed mutualistic species was Sphaerosporella brunnea, which formed ectendomycorrhizae. Expand
Seedbed variation from the interior through the edge of a large wildfire in Alberta
Despite the importance of seedbeds in the life histories of many plant species, there has been little study of the seedbeds created by wildfire in fire-prone vegetation types such as the borealExpand
Ecology of the 2004 morel harvest in the Rocky Mountain Forest District of British Columbia
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High-elevation gray morels and other Morchella species harvested as non-timber forest products in Idaho and Montana
We investigated post-fire morels (Morchella species), especially the “gray” morels of Idaho and Montana, by collecting ecological and genetic data and by interviewing commercial mushroom harvestersExpand
Spatial and temporal patterns of morel fruiting.
The spatial pattern of M. esculenta fruiting appears to be associated with vegetation pattern, whereas the onset and abundance of fruiting are determined by the interaction of spring temperatures with availability of supporting precipitation. Expand
Productivity and diversity of morel mushrooms in healthy, burned, and insect-damaged forests of northeastern Oregon
Abstract Large commercial crops of morels are harvested annually from montane coniferous forests of the northwestern United States. Although some morels fruit annually in nondisturbed forests, othersExpand
Field observations on growth and development of Morchella rotunda and Mitrophora semilibera in relation to forest soil temperature
Field data correlate the initial extent of springtime reheating of soil with ascocarp maturation and suggest that mycelial muffs may be storage and resistance structures formed as early as the summer preceding the spring fruiting, which suggests morels are biennial. Expand
Fire Severity and Vegetation Response in the Boreal Swedish Forest
We studied plant survival and colonization over an experimental gradient, from fire lightly scorching the soil to fire consuming most of the organic soil layer, at two forest sites in northernExpand
Synthesis of two types of association between Morchella esculenta and Picea abies under controlled culture conditions
Morels can grove as saprophytes, but in association with trees, they form sclerotia around mature roots and ectomycorrhizas with rootlets, which apparently helps the fungus for mycorrhization. Expand