Pathways for algal recolonisation in ephemeral streams

Robson, Belinda, Matthews, Ty and Lind, Peter 2005, Pathways for algal recolonisation in ephemeral streams, in NZES 2005 : Proceedings of the Conference : Ecology at the waters edge : Joint conference with the New Zealand Freshwater Sciences Society, New Zealand Freshwater Sciences Society, [Nelson, N.Z.].


Title Pathways for algal recolonisation in ephemeral streams
Author(s) Robson, Belinda
Matthews, Ty
Lind, Peter
Conference name New Zealand Ecological Society Conference (2005 : Nelson, N.Z.)
Conference location Nelson, N.Z.
Conference dates 28 Aug.-1 Sep. 2005
Title of proceedings NZES 2005 : Proceedings of the Conference : Ecology at the waters edge : Joint conference with the New Zealand Freshwater Sciences Society
Publication date 2005
Publisher New Zealand Freshwater Sciences Society
Place of publication [Nelson, N.Z.]
Summary Our prior research showed that stream algae regrow rapidly from dry biofilm and suggested that ephemeral streams that lacked any permanent surface water showed much lower algal regrowth once streams recommenced flow. To determine whether the latter was true in a broader range of streams, we: sampled and cultured algae from a range of drought refuges in 9 streams, sampled algae from 18 streams in the week after flow recommenced and conducted a transplant experiment to identify the source of algal colonists. We found little specificity amongst algal taxa for different drought refuges and that the dry biofilm and leaf litter combined accounted for all taxa that regrew after flows recommenced. Regulation of streams with some permanent surface water is associated with increased algal regrowth from dry biofilm, not the presence of permanent surface water alone. Sources of algal recolonization may be dependent on the dominant algal composition within the stream, at a coarse taxonomic level.
Notes Conference Program : http://www.nzes.org.nz/sites/all/files/NZESconf2005Nelson.pdf
Language eng
Field of Research 060204 Freshwater Ecology
Socio Economic Objective 960506 Ecosystem Assessment and Management of Fresh, Ground and Surface Water Environments
HERDC Research category E3 Extract of paper
Persistent URL http://hdl.handle.net/10536/DRO/DU:30014444

Document type: Conference Paper
Collection: School of Ecology and Environment
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