Temporal variation of invertebrate communities in perennial wetlands

摘要: Abstract Temporal variability of wetland invertebrates was examined at two scales—inter-annual and seasonal—to determine whether it could confound results spatially extensive surveys. The inter-annual study collected samples from the Bullock Creek (BCW) each summer for 4 years; seasonal quarterly 14 months wetlands (Mahinapua Shearer). Water pH, temperature conductivity were also measured concurrently. Three site groupings identified in BCW, reflecting differences physical–chemical parameters, which varied temporally but never converged. Few annual found invertebrate relative abundances ordination produced three sample groups, contained distinct communities. pH differed consistently between Mahinapua Shearer. Relative nine taxa seasonally; however, showed that both always supported discrete These ...