| 要旨トップ | 目次 | 日本生態学会第64回全国大会 (2017年3月、東京) 講演要旨
ESJ64 Abstract


一般講演(口頭発表) B01-13  (Oral presentation)

Centropagid calanoid copepods in the edge habitats of freshwater creeks and rivers in New South Wales, Australia

*Tsuyoshi Kobayashi(Science Division, Office of Environment and Heritage NSW, PO Box A290, Sydney South, NSW 1232 Australia), Jan Miller(Science Division, Office of Environment and Heritage NSW, PO Box A290, Sydney South, NSW 1232 Australia), Ian Bayly(Department of Biological Sciences, Monash University, Clayton, VIC 3168 Australia), Cheryl Tang(Sydney Water, PO Box 73, West Ryde, NSW 2114 Australia), Simon Hunter(Science Division, Office of Environment and Heritage NSW, PO Box A290, Sydney South, NSW 1232 Australia), Timothy Ralph(Department of Environmental Sciences, Macquarie University, Sydney NSW 2109 Australia), Luke Stone(Department of Environmental Sciences, Macquarie University, Sydney NSW 2109 Australia)

Freshwater calanoid copepods develop abundant populations in lentic water bodies such as lakes, reservoirs (including dams) and lagoons. In the present study, we examined the potential habitat value of edges in lotic systems such as creeks and rivers where waters tend to stagnate, providing lentic-like environments. We examined a total of 353 edge samples collected from 321 sites across the state of New South Wales, Australia. Of the total samples examined, calanoid copepods were found in 97 samples, with the frequency of occurrences of species decreasing in the order: Boeckella fluvialis Henry, B. triarticulata (Thomson), Gladioferens spinosus Henry, G. pectinatus (Brady), B. major Searle, B. minuta Sars, and Calamoecia lucasi Brady. The probability of occurrence of the calanoid copepods was related positively to latitude but negatively to elevation, based on logistic regression models. We conclude that the edges of many lotic systems provide additional habitats for some species of freshwater calanoid copepods, with constraints on their distributions along latitudinal and elevational gradients.


日本生態学会