Conservation of genetic resources within managed natural and man-made forests

Yeatman C.W., . Conservation of genetic resources within managed natural and man-made forests. pp. 1-8. ISSN 0302-2935

Genetic resources form the essential link between evolution in the past and future adaptation to environmental change. These collective components of inheritance are the basis of biological existence and diversity. Loss of species and severe genetic loss and degradation of populations within species are permanent. These unique genetic resources cannot be recovered or recreated. Destruction conversion and deterioration of forest ecosystems threaten the retention of genetic diversity among and within forest tree species. The rate and scale of irretrievable dissipation of forest is particularly rapid and massive in tropical zones due to population pressures and heedless economic exploitation. Retention of genetic resources in perpuity must be recognized as necessary for continued management and improvement of forest resources. Genetic conservation should be a recognized component of the management and of records of forestland. It is entirely compatible with most other land use objectives including wood and seed production water shed protection parks recreation and wild life conservation. Conservation of genetic resources requires only that selected representative populations be regenerated from generation to generation. Indigenous tree species and populations are most effectively maintained in situ by natural regeneration and/or by planting trees of local origin and of wide parentage. Genetic resource of introduced species can best be developed as land-races in plantations designed to retain a broad genetic base of selected regionally-adapted populations and genotypes. Increased public awareness is needed at all levels and sectors of society. Direct reponsibility for conservation of forest genetic resources lies with all who create policy for administer manage work in or derive benefit from the forest.

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Abstract

Genetic resources form the essential link between evolution in the past and future adaptation to environmental change. These collective components of inheritance are the basis of biological existence and diversity. Loss of species and severe genetic loss and degradation of populations within species are permanent. These unique genetic resources cannot be recovered or recreated. Destruction conversion and deterioration of forest ecosystems threaten the retention of genetic diversity among and within forest tree species. The rate and scale of irretrievable dissipation of forest is particularly rapid and massive in tropical zones due to population pressures and heedless economic exploitation. Retention of genetic resources in perpuity must be recognized as necessary for continued management and improvement of forest resources. Genetic conservation should be a recognized component of the management and of records of forestland. It is entirely compatible with most other land use objectives including wood and seed production water shed protection parks recreation and wild life conservation. Conservation of genetic resources requires only that selected representative populations be regenerated from generation to generation. Indigenous tree species and populations are most effectively maintained in situ by natural regeneration and/or by planting trees of local origin and of wide parentage. Genetic resource of introduced species can best be developed as land-races in plantations designed to retain a broad genetic base of selected regionally-adapted populations and genotypes. Increased public awareness is needed at all levels and sectors of society. Direct reponsibility for conservation of forest genetic resources lies with all who create policy for administer manage work in or derive benefit from the forest.

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Item Type:	Article
Additional Information:	11 ref. Summary (En)
AGROVOC Term:	ARBOLES FORESTALES
AGROVOC Term:	RECURSOS GENETICOS
AGROVOC Term:	VARIACION GENETICA/ ECOSISTEMA
AGROVOC Term:	CONSERVACION DEL GERMOPLASMA
AGROVOC Term:	PLANTACION FORESTAL
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:55
URI:	http://webagris.upm.edu.my/id/eprint/20159

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