TY - JOUR TI - Biology of forest tree protection: its tasks and perspectives AU - Tucović Aleksandar AU - Karadžić Dragan JN - Glasnik Sumarskog fakulteta PY - 2002 VL - IS - 85 SP - 7 EP - 23 PT- Article AB- The logical conclusion of the short analysis of criteria on natural resource planning and management in situ and ex situ (scale, number, intraspecific variability, ecology of communities, policy, economy, organisation of research, recreation), referring to active biological protection of trees, is as follows: biological resources of trees in situ and ex situ should be large, diverse and geographically and ecologically distributed throughout the country. Their number and scale depend on our potentials. At the beginning of the new century, we have to create an active (functional) strategy of the protection of tree biology, especially endemic and relic species. Accordingly, the biologists interested in tree resource protection should already exercise their influence in solving these issues (organisation of active protection, more or less directed reproduction, of economically significant species, etc). The biological protection of trees has an intensive development in the developed countries of the world, while the developing countries are trying to follow the trend, depending on their material sources, culture and attitude of their state government Biological protection of trees is an open, new, and very wide area of further research in already set aside natural resources in situ and ex situ. This is a new field of research, without a long tradition. Along with the scientific value of this approach of the systematic and systemic solution of more or less directed tree reproduction, we also need an economic stimulation. The scope and the complexity of this field of research requires further scientific work of a greater number of teams, some of which should be supported by forestry profession and the society in general The introduction of the model of tree recombination system enables a completely new approach to quality control of the successive generations of trees. This means that all current and planned measures in the model must be clearly scientifically defined, integrally (ecosystem) understood and, most importantly, efficiently realized. Also, their definition and realisation must be synchronised and continual both in case of short-term and long-term measures, which are interdependent and inter-conditioned .