Hi Jeff I don't know about any specific test for synchrony as there are many ways of looking at the problem. But there's plenty of literature looking at modelling of synchrony in the aquatic environment which would hopefully help you get started.
e.g. for starters try: Rusak J.A., Yan N.D. & Somers K.M. (2008) Regional climatic drivers of synchronous zooplankton dynamics in north-temperate lakes. Canadian Journal of Fisheries and Aquatic Sciences 65, 878-889. Rusak J.A., Yan N.D., Somers K.M. & McQueen D.J. (1999) The Temporal Coherence of Zooplankton Population Abundances in Neighboring North-Temperate Lakes. American Naturalist 153, 46-58. Zuur A.F. & Pierce G.J. (2004) Common trends in northeast Atlantic squid time series. Journal of Sea Research 52, 57-72. Regards Mike -----Original Message----- From: r-sig-ecology-boun...@r-project.org [mailto:r-sig-ecology-boun...@r-project.org] On Behalf Of Stratford, Jeffrey Sent: 30 June 2011 00:18 To: r-sig-ecology@r-project.org Subject: [R-sig-eco] testing for synchrony Hi everyone, I've been asked a few times about how to test for synchrony of ecological events. In one case, a researcher has more than a decade of acorn mast data for several species of oaks and wants to know if different oaks have synchronous mast years when sympatric. The other case, a researcher wants to know if frog calling intensity is synchronous across a number of ponds. I thought I would first take a stab at looking at synchrony broadly then I would dig deeper and look at synchrony and spatial effects. Any suggestions how to get started? Many thanks, Jeff ***************************************** Jeffrey A. Stratford, Ph.D. Department of Health and Biological Sciences 84 W. South St. Wilkes Univertsity, PA 18766 570-332-2942 http://web.wilkes.edu/jeffrey.stratford/ _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology -- This message (and any attachments) is for the recipient only. NERC is subject to the Freedom of Information Act 2000 and the contents of this email and any reply you make may be disclosed by NERC unless it is exempt from release under the Act. Any material supplied to NERC may be stored in an electronic records management system. _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
