Gordon D. Lewis. (1986). The role of policy in forest resource development. Silva Fennica vol. 20 no. 4 article id 5294. https://doi.org/10.14214/sf.a27750

Keywords: forest policy; sustainable forestry; forest resources; social forestry; exploitation; resource protection; natural resource development

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A nation that wishes to enhance its social and economic well-being through more intensive utilization of its forest resources must develop a rather comprehensive policy statement to ensure that the expanded exploitation does not lead to the destruction of these resources. The policy must specify the goals to be achieved, provide general direction on how these goals can be achieved, and develop a system of checks-and-balances to ensure achievement of the long-term objectives. The policy must consider resource protection, the economic needs at the various levels of government, the social impacts of utilization on ways of life in all areas of the nation, and the infrastructure needed in the short and long terms.

Lewis, E-mail: gl@mm.unknown

Category : Research article

article id 291, category Research article

Yildiray Lise, Zeki Kaya, Fikret Isik, Rumi Sabuncu, Irfan Kandemir, Sertaç Önde. (2007). The impact of over-exploitation on the genetic structure of Turkish red pine (Pinus brutia Ten.) populations determined by RAPD markers. Silva Fennica vol. 41 no. 2 article id 291. https://doi.org/10.14214/sf.291

Keywords: Pinus brutia Ten.; RAPD-PCR; human over-exploitation; genetic structure; inbreeding

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To determine the possible impact of over-exploitation on the genetic structure of Turkish red pine (Pinus brutia Ten.) populations, three natural and three over-exploited (human degraded) populations of the species in the Mediterranean region of Turkey were investigated with Randomly Amplified Polymorphic DNA (RAPD). With the 80 RAPD primers tested, 12 of them yielded 137 polymorphic RAPD fragments. Four of the studied populations maintained unique fragments. The mean proportion of polymorphic fragments for all populations ranged from 89.8 to 98.9% and there were no significant differences between natural (94.8%) vs. over-exploited populations (92.7%). The estimated heterozygosity values suggested that Turkish red pine maintains high levels of genetic diversity (range 0.24–0.28) though studied populations and grouped ones as natural (H_e = 0.28) vs. over-exploited (0.27) did not differ significantly. The mean F_ST value indicated that the large portion of the total genetic diversity was within populations (93%), but this value was lower in the natural populations (92%) than in the over-exploited ones (94%). In over-exploited populations, excess of homozygosity was observed (about 6% higher) as compared to natural populations, indicating impacts of inbreeding in P. brutia.

Lise, Department of Biological Sciences, Middle East Technical University, 06531, Ankara, Turkey E-mail: yl@nn.tr
Kaya, Department of Biological Sciences, Middle East Technical University, 06531, Ankara, Turkey E-mail: kayaz@metu.edu.tr
Isik, North Carolina State University, Raleigh, USA E-mail: fi@nn.us
Sabuncu, Southwest Anatolia Forest Research Institute, Antalya, Turkey E-mail: rs@nn.tr
Kandemir, Department of Biology, Zonguldak Karaelmas University, 67100, Zonguldak, Turkey E-mail: ik@nn.tr
Önde, Department of Biological Sciences, Middle East Technical University, 06531, Ankara, Turkey E-mail: so@nn.tr

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