Reaction of cis-Ru(κ 2 -OAc) 2 (PPh 3 ) 2 with two-electron donor ligands L results in the formation of complexes trans-[Ru(κ 1 -OAc)(κ 2 -OAc)L(PPh 3 ) 2 ] (L = CO, NO + , CNtBu). Vinylidene complexes (L = C=CHR) may be prepared from the corresponding reaction with terminal alkynes HCϵCR, and species containing hydroxyvinylidene ligands (L = C=CHCR 1 R 2 {OH}) may be prepared from related reactions with propargyl alcohols HCϵCCR 1 R 2 {OH}. Treatment of cis- [a]

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There is an urgent need to address coastal dynamics as a fundamental interaction between physical and biological processes, particularly when trying to predict future biological–physical linkages under anticipated changes in environmental forcing. More integrated modelling, support for observational networks and the use of management interventions as controlled experimental exercises should now be vigorously pursued.