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iNaturalist:
Sugar maple spotting slows as Canada's fall color fades
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This fuzzy forest moss is suddenly everywhere in Canada
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Milkweed sightings stay high across Canada as autumn sets in
Cadmium-cleanup mineral stresses one earthworm species, spares another
PubMed · 2026-05-22
A mineral treatment used to lock cadmium pollution out of soil works well chemically, but it temporarily stresses one type of earthworm more than another, and disturbs soil microbes for a few weeks before things settle down.
1
3% nano-hydroxyapatite raised soil pH by 0.50-0.55 units and cut available cadmium by 21.3-27.6%, effectively immobilizing the metal.
2
Eisenia fetida (a surface-dwelling earthworm) suffered reduced survival and biomass at day 14 under 3% treatment, while Amynthas robustus (a burrowing species) showed no such harm.
3
High-dose treatment briefly suppressed total soil microbial biomass early on, but overall community structure recovered and stayed largely stable over the 42-day study.