The earth we live on - "Miracle Planet" never ceases to amaze us, to put us in front of mysteries, often too difficult to solve, to provide us with vital resources, apparently, without asking for anything in return, to bear our whims, but to sanction us when we exceed the measure. Of all the wonders of the blue planet, life is without a doubt the most precious treasure; in its absence, who else could enjoy all the other gifts of the Earth: water, air, minerals, light, heat ?!
In an era of quasi-generalized industrialization and urbanization, each of us seeks a living corner, enlivened by the rustling of leaves, the scent of flowers, the trills of birds, and the hum of insects; every human being can find in the middle of nature a source of delight, energy and inspiration. At the same time, paradoxically, man has today become the most feared enemy of plants and animals on Earth. The unfair competition of man with other living beings, revealed by the extinctions due to human activities in historical time, means that, in the short, medium and long term, the existence of many floristic and faunal species is called into question.
The book, entitled simply: "Elements of biogeography", is an attempt to synthesize information with theoretical and practical values in the field of biogeography, designed to stimulate students' curiosity, to help them understand the mechanisms of biotic envelope - so perfect and perhaps, that is why they are so vulnerable - to initiate them in the research techniques of the living world, to sensitize them and to motivate their actions directed towards the protection and conservation of floristic and faunal species. Its content is structured in four parts, which address: theoretical problems of taxonomy, ecology and chorology; structural and behavioral characteristics of the plant and animal communities within the large continental biomes; aspects related to the need for protection and conservation of the biotic envelope; research methods and techniques used in biogeographic studies. Through the content and the approached issues, the paper is addressed especially to students who, according to the Curriculum, study biogeography during a single semester. At the same time, the information contained in the book can be a source of information for teachers in pre-university education, who choose biogeography or certain biogeography issues as an optional subject.
Through this paper, I would like to thank the professors who introduced me to the secrets of biogeography, first in my student years and, later, during my university career: the late Prof. Ioan Pisota, the teacher who, through the prestige doubled by the sense of humor, aroused my interest for this study discipline and Mrs. prof.univ.dr. Maria Patroescu - mentor, collaborator and often constructive critic of the activity carried out by the undersigned in the service of biogeography.
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