![]() ![]() Arabidopsis NPH1: a flavoprotein with the properties of a photoreceptor of phototropism. The evolutionary adaptation of flower colours and the insect pollinators' colour vision. Photosynthetic responses of tropical forest plants to contrasting light environments. Photosynthetic light environments in a lowland tropical rain forest in Costa Rica. Gap-size niche differentiation by tropical rain forest trees: a testable hypothesis or a broken down bandwagon? Pp. A survey of ultraviolet-B radiation in forests. Architecture and development of rain forest trees: responses to light variation. SPB Academic Press, The Hague.īongers, F. (eds), Plant form and vegetation structure. Is exposure-related variation in leaf characteristics of tropical rain forest species adaptive? Pp. Sexual selection and the mismeasure of color. Physiological ecology of a tropical succession: a comparative review. Light relations of terrestrial plant communities and their measurement. Tree growth periodicity in tropical climates. Seeing the world in red and blue: insight into plant vision and photoreceptors. It is suggested that light quality measurement may be used to estimate the structural impact of forest exploitation, and that gives us the information necessary for a functional explanation of anthropogenic effects on tropical forest diversity.Īhmad, M. An analysis of the range of spectral parameters along a deforestation gradient is presented, testing if sites with more variation in light could support more species which are light-environment specialists. Ambient light quality acts as a signal for both animals and plants, and consequences on plant growth, colour display, and signal design are examined. Ecophysiological adaptations of plants to cope with contrasting light environments operate at daily, seasonal and life time-scales. The purpose of this paper is to describe peculiarities of light in tropical forest, and to review the effects of light intensity and especially quality on plants and animals. ![]() For animals, the apparent simplicity of five light environments is complicated by different types of contrast with the optical background which greatly modify the conspicuousness of visual signals. Forest light spectra can directly affect photosynthesis, plant morphogenesis, visual communication, and the effectiveness of plant-animal interactions. Vegetation geometry, sun angle, and weather generate five light environments, which greatly differ in intensity and spectrum. Light filtered through the forest canopy is the most variable physical factor in tropical forests, both in space and time.
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