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Cinnamon sedge caddisflies emerge at Maple Cross
October 17, 2026
caddisflies appeared at Maple Cross on 2026-10-15. This late-autumn activity reflects peak emergence for northern caddisfly families that indicate good water quality, as caddisfly larvae require clean, well-oxygenated flow to thrive.
Duck mussel found at Ferry Boat Inn
October 17, 2026
A was observed at Ferry Boat Inn, London on 2026-10-15. This native freshwater bivalve indicates presence of established mussel habitat where water conditions support filter-feeding organisms that are sensitive to pollution and siltation.
Hedgehogs spotted at Orpington and across the region
October 17, 2026
sightings were recorded on 2026-10-12 at Orpington and on 2026-09-28 at multiple locations across the region. The species is classified as Vulnerable to extinction in the UK, having declined from approximately 30 million in the 1950s to under a million today. Urban populations show some stabilization, though the long-term trajectory remains severe.
More about Red Swamp Crayfish
Red swamp crayfish found in Central Park
October 3, 2026
(Procambarus clarkii), an introduced species, was observed 2026-09-23 in Central Park. This invasive crayfish can outcompete native crayfishes and alter freshwater benthic communities by burrowing and bioturbating sediments.
Red swamp crayfish found in Phoenix waterways
September 27, 2026
Legend
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