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Stretching and bending vibrations of water molecules absorb photons of specific wavelengths, a phenomenon that constrains light energy available for aquatic photosynthesis. Previous work suggested that these absorption properties of water create a series of spectral niches but the theory was still too simplified to enable prediction of the spectral niches in real aquatic ecosystems. Here, we show with a state-of-the-art radiative transfer model that the vibrational modes of the water molecule delineate five spectral niches, in the violet, blue, green, orange and red parts of the spectrum. These five niches are effectively captured by chlorophylls and phycobilin pigments of cyanobacteria and their eukaryotic descendants. Global distributions of the spectral niches are predicted by satellite remote sensing and validated with observed large-scale distribution patterns of cyanobacterial pigment types. Our findings provide an elegant explanation for the biogeographical distributions of photosynthetic pigments across the lakes and oceans of our planet. Starting from the vibrational modes of water molecules, the authors derive five major spectral niches in aquatic ecosystems using a radiative transfer model. They then predict the global distributions of these spectral niches using remote sensing and validate the predictions with metagenomic data on the distribution patterns of cyanobacterial pigments.

The growing interconnectedness of national economies and an expanding awareness of global interdependence in the 1990s have generated lively debate over the future of national governance. In a world of mobile capital, are states vital to the social and economic wellbeing of their citizens? A number of changes in the state's domestic and international environment - ranging from regulatory reforms and welfare state restructuring to the proliferation of intergovernmental agreements - have promoted the view that globalisation has a negative impact, compromising state capacities to govern domestically. This book challenges the 'constraints thesis'. Covering vital areas of state activity (welfare, taxation, industrial strategy, and regulatory reform), the contributors focus on a range of issues (finance, trade, technology) faced by both developed and developing countries. The contributors argue that globalisation can enable as well as constrain, and they seek to specify the institutional conditions which sharpen or neutralise the pressures of interdependence.