Saturday, February 20, 2016

Tristan and Kramer in action, establishing monitoring plots, mountain beaver evidence. January 2016

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Mountain Beaver hole close-up  In context (ground zero?

Paul Talbert's Skepticism regarding the Mountain Beaver Hypothesis

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It seems likely that several interacting factors cause the sword fern die-off.   Phythophthora and mountain beavers have been proposed.  T...
Saturday, January 9, 2016

Phytophthora: oft-proposed candidate pathogen

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There are more than 100 species in this genus, whose name translates as "plant destroyer".     P. ramorum is responsible for su...

Sharon Baker (Lincoln Park steward) reports possibly related observations from the north coast

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With thanks to David Perasso (Martha Washington Park steward) we are able to include this report from Lincoln Park steward Sharon Baker.  Ou...

Nelson Salisbury's Map of the Affected Area, September 2015

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Nelson and I walked the boundary, GPS in hand, in late August.   Though the boundaries of necessity are rendered as hard well-defined...

Brief reflection on the mountain beaver hypothesis

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The mountain beaver hypothesis - that the sword fern die-off is substantially, and maybe primarily the result of mountain beaver predation -...

Kramer adds details & proposals regarding the mountain beaver hypothesis

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I just sent out a link to the shared drive spreadsheet containing the fern data. If you wish to play around with this data, copy and paste ...