Authors:L. I. Jacoboski, V. J. Debastiani, A. de Mendonça-Lima, and S. M. Hartz
Studies of functional diversity can help to understand processes that determine the presence of species in different habitats. Measurement of functional diversity in silviculture areas is important because different functional traits can show different responses to this landscape alteration, and therefore ecological functions can be affected. This study evaluated functional and taxonomic differences in bird assemblages in a native forest and eucalyptus plantations, and also assessed the functional nestedness of the bird species. We censused birds in eucalyptus plantations of four different ages, and also in a native forest. The results showed higher functional and taxonomic diversity of birds in the native forest than in plantations and higher similarity of functional traits between plantations of different ages. The high functional diversity in the native forest indicates a greater variety of functional traits, resulting in greater functional complementarity than in plantations. The association of some traits with the native forest, such as nectarivory and foraging in air, indicates the importance of native habitats in maintaining species and functions related to such traits. Already, species traits in eucalyptus plantations represent a subset of those that were recorded in the native forest, indicating that some functions are maintained in plantations. Our results demonstrate that the species occurrence in the plantations and native forest is determined by species traits. Thus, the maintenance of some functions in plantations is provided, although there is a higher functional diversity in native forest.
Authors:L. Núñez-Regueira, J. Rodríguez-Añón, J. Proupín-Castiñeiras, and A. Romero-García
Calorific values and flammability changes during a year for forest waste originating from silviculture task in Galicia (NW
Spain) are reported. These waste materials are becoming to be used as alternative fuels.
The present study was made on several hardwood forest species. These forest species occupy nowadays approximately 30% of the
total forest surface of Galicia.
Calorific values were measured by static bomb calorimeter in an oxygen atmosphere. Flammability was determined using a standard
epiradiator. Simultaneously, some other parameters such as elementary chemical composition, heavy metal contents, moisture,
density, ash percentage after combustion in the bomb, and main bioclimatic characteristics, were also determined.
D. R. Nielsen and O. Wendroth. 2003. Spatial and Temporal Statistics. sampling Field Soil and their Vegetation. Castena Verlag, Reiskirchen, Germany. 416 pages, many illustrations. Paperback. ISBN 3-923381-46-6. Price: 50 EUR. Y. Gutterman. 2002. Survival Strategies of Annual Desert Plants (Adaptations of Desert Organisms). xx + 348 pages. Springer-Verlag, Belin, Heidelberg, New York. Hardcover. ISBN: 3-540-43172-1. Price: 159 EUR. P. S. Johnson, S. R. Shifley and R. Rogers. 2002. The Ecology and Silviculture of Oak. CABI Publishing, Wallingford, UK. 503 pages. Hardback. ISBN 0 85199 570 5. Price: 85 GBP, 149 USD. J. Belnap and O.L. Lange (eds.). 2003. Biological Soil Crusts: Structure, Function and Management (Ecological Studies, Vol. 150). 1st edition, revised 2nd printing. xviii + 503 pages. Springer-Verlag, Berlin, Heidelberg, New York. Softcover. ISBN: 3-540-43757-6. Price: 49.95 EUR.
mixed-conifer forest in Hokkaido, northern Japan, following a catastrophic windstorm: a “parallel” model of plant succession. In Kelty, M.J., B.C. Larson and C.D. Oliver (eds.),
Ecology and Silviculture of Mixed-species Forests.
(forestry, silviculture, timber, eucalyptus), and a third selective case that uses the opportunity presented by the ‘reassignment exception’ to build the strongest possible case by omitting infrequently-cited material. It is noteworthy that the tabular REC
conditions, the inhabitants of the settlement formerly made a living primarily from animal husbandry, although silviculture was also significant (Szabó 2005:286). In terms of transportation, there are relatively good links with other settlements in the region