For Ramon Margalef, in the centenary of his birth. Why do not we find ecosystems in the atmosphere, as in oceans and continents? In the atmosphere, spores, pollen grains and micro-organisms float, most of them expelled from soils. But trophic networks are not established, nor are there large flows of energy and matter controlled by living beings.
Life is supported on the planet by the interactions between organisms. This interactions often are subject to a set of more or less distorted appearances, and that appearances define each interaction and the living environment of each organism.
Maps are a key tool for ecologists and naturalists. What is its origin? What applications can have? The phenomena that studies ecology have an important geographical base, depend on the space environment in which they occur. For this reason, cartographic techniques in combination with computing and large databases can help us to study, for example, the relationship between climate, human legacy and the current distribution of species.
The human footprint on Earth is undoubted and inevitable to some extent . Science and technology, far from contributing to create more inequalities, must be able to mitigate these impacts, contribute to progress and improve the welfare of all the people in the world.