99 research outputs found
A major shift to the retention approach for forestry can help resolve some global forest sustainability issues
Approximately 85% of the global forest estate is neither formally protected nor in areas dedicated to intensive wood production (e.g., plantations). Given the spatial extent of unprotected forests, finding management approaches that will sustain their multiple environmental, economic, and cultural values and prevent their conversion to other uses is imperative. The major global challenge of native forest management is further demonstrated by ongoing steep declines in forest biodiversity and carbon stocks. Here, we suggest that an essential part of such managementâsupplementing the protection of large reserves and sensitive areas within forest landscapes (e.g., aquatic features)âis the adoption of the retention approach in forests where logging occurs. This ecological approach to harvesting provides for permanent retention of important selected structures (e.g., trees and decayed logs) to provide for continuity of ecosystem structure, function, and species composition in the postharvest forest. The retention approach supports the integration of environmental, economic, and cultural values and is broadly applicable to tropical, temperate, and boreal forests, adaptable to different management objectives, and appropriate in different societal settings. The widespread adoption of the retention approach would be one of the most significant changes in management practice since the onset of modern high-yield forestry.Fil: Lindenmayer, D.B.. The Australian National University,; AustraliaFil: Franklin, J.F.. University of Washington; Estados UnidosFil: LĂ”hmus, A.. University of Tartu; EstoniaFil: Baker, S.C.. University of Tasmania; AustraliaFil: Bauhus, J.. Albert Ludwigs University of Freiburg; AlemaniaFil: Beese, W.. University of Vancouver; CanadĂĄFil: Brodie, A.. No especifĂca;Fil: Kiehl, B.. Swedish University of Agricultural Sciences; SueciaFil: Kouki, J.. University of Eastern Finland; FinlandiaFil: MartĂnez Pastur, Guillermo JosĂ©. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro Austral de Investigaciones CientĂficas; ArgentinaFil: Messier, C.. UniversitĂ© du QuĂ©bec a Montreal; CanadĂĄFil: Neyland, M.. University of Tasmania; AustraliaFil: Palik, B.. No especifĂca;Fil: Sverdrup Thygeson, A.. Norwegian University of Life Sciences; NoruegaFil: Volney, J.. Canadian Forest Service; CanadĂĄFil: Wayne, A.. No especifĂca;Fil: Gustafsson, L.. Swedish University of Agricultural Sciences; Sueci
Natural Plasmodium infection in neotropical primates in the island of SĂŁo LuĂs, state of MaranhĂŁo, Brazil
Circulation of antibodies against yellow fever virus in a simian population in the area of Porto Primavera Hydroelectric Plant, SĂŁo Paulo, Brazil
Etnozoologia e educação ambiental para escolas da AmazÎnia: experimentação de indicadores quantitativos
The celebration of the one hundred and fiftieth anniversary of its founding as Queens College, 1766-l9l6.
Chairman of Editorial committee: Prof. J. Volney Lewis.Extra pages numbered: 332A-B, laid in.Mode of access: Internet
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