Biodiversiteit: motieven en functies. Verkennende studie in het kader van het project Voorraadbeheer
Wiertz J
Wiertz J
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Series / Report no.
Open Access
Type
Report
Language
nl
Date of publication
1994-05-31
Year of publication
Research Projects
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Journal Issue
Title
Biodiversiteit: motieven en functies. Verkennende
studie in het kader van het project Voorraadbeheer
Translated Title
Biodiversity: motives and functions. Preliminary
study in a project on the management of our global natural
resources
Published in
Abstract
Abstract niet beschikbaar
Four main natural resources can be distinguished: chemical elements, energy carriers, environmental resources (air, water, soil), and bioresources. Within bioresources can be distinguished: biomass (e.g. stock of wood or fish), and biodiversity. Biodiversity can be described in terms of genes, species or ecosystems. Although genetic variety is the most fundamental concept, species are mostly used as a more practical alternative. The Dutch environmental policy aims for the protection of 95% of the species. The Dutch policy for nature conservation selected "aim-species" on criteria as international rareness/distribution area, national rareness and declining trend. More attention should however be paid to: - the genetic information value per species (cladistic value), - the use of risk analysis. The motives of biodiversity consists of - financial or other utilitarian motives, - more spiritual or religious motives: . stewardship . esthetic, religious feelings of alliance with nature, . partnership (between man and nature based on mutual respect). The main functions are production, carrier, regulation and information. These functions can be subdived in at least 37 subfunctions. A summary of concrete and often monetised examples of functions is given to illustrate and underpin the importance of different functions. An overview of evaluation methods of biodiversity is given.
Four main natural resources can be distinguished: chemical elements, energy carriers, environmental resources (air, water, soil), and bioresources. Within bioresources can be distinguished: biomass (e.g. stock of wood or fish), and biodiversity. Biodiversity can be described in terms of genes, species or ecosystems. Although genetic variety is the most fundamental concept, species are mostly used as a more practical alternative. The Dutch environmental policy aims for the protection of 95% of the species. The Dutch policy for nature conservation selected "aim-species" on criteria as international rareness/distribution area, national rareness and declining trend. More attention should however be paid to: - the genetic information value per species (cladistic value), - the use of risk analysis. The motives of biodiversity consists of - financial or other utilitarian motives, - more spiritual or religious motives: . stewardship . esthetic, religious feelings of alliance with nature, . partnership (between man and nature based on mutual respect). The main functions are production, carrier, regulation and information. These functions can be subdived in at least 37 subfunctions. A summary of concrete and often monetised examples of functions is given to illustrate and underpin the importance of different functions. An overview of evaluation methods of biodiversity is given.
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DGM/SP