Azolla rubra R.Br. (Salviniaceae) on Rēkohu / Wharekauri / Chatham Island
de Lange, Peter; Hitchon, T.
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Citation:de Lange, P.J., & Hitchon, T. (2023). Azolla rubra R.Br. (Salviniaceae) on Rēkohu / Wharekauri / Chatham Island. Perspectives in Biodiversity, 1(1), 44-48. Unitec ePress, Te Pūkenga - New Zealand Institute of Skills and Technology. ISSN 3021-114X http://doi:10.34074/pibdiv.001104
Permanent link to Research Bank record:https://hdl.handle.net/10652/6155
Azolla rubra (Salviniaceae) is reported from the Chatham Islands for the first time based on chance finds made in February and April 2023 from two lakes in the north-eastern portion of Rēkohu / Wharekauri / Chatham Island (hereafter Rēkohu). The biostatus of Azolla on the islands is reviewed and it is believed that plants are more likely to have arrived naturally via fragments bought to the islands by waterfowl from Aotearoa / New Zealand than by other means, so should be treated as indigenous. We advise that the impact of Azolla on the most sheltered, shallow, freshwater bodies of the islands should be monitored, as hitherto the islands waterbodies have been mostly devoid of free-floating aquatic plants.
Keywords:Rēkohu / Wharekauri, Chatham Islands (N.Z.), Aotearoa, New Zealand, aquatic ferns, ferns, environmental monitoring
ANZSRC Field of Research:410401 Conservation and biodiversity
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