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This would mean that particular landscapes could be more intensively managed and in other more focus on biodiversity conservation could be taken. However, prescribed burning led to clear changes in the structure of the bird assemblages. Rather, different time categories had different successional trajectories that seemed to converge on a unique climax community for that time period. Beetles were divided in two groups, primary and secondary, the former with an ability to kill growing trees. First, a normative model was developed centered on evidence-based knowledge about a forest composition, structure, and function at multiple scales, and b performance targets derived by quantifying the habitat amount in naturally dynamic forests, and as required for presence of populations of specialized focal species. In addition to potential benefits, biotechnology in silviculture may also be associated with environmental considerations, including effects on organisms associated with the living tree and on ecosystems and processes dependent on tree residue. Furthermore, the significantly higher estimated abundance per ha of red-listed beetles in reserves underlines the importance of reserves for maintaining viable populations of rare red-listed species and as source areas for saproxylic species in boreal forest landscapes.

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Evenly dispersed retention might always stay below suggested thresholds with limited contribution to ecologically sustainable forest ecosystems.

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The response for birds was heterogeneous and probably depended more on factors such as landscape patterns. The 10 species that contributed most to the differences calculated as the mean contribution for all significant comparisons in the Simper analysis in assemblages between substrates are ranked in descending order e. Based on the higher survival rate of larvae reared on leaves from preferred hosts, we conclude that G. Assessing ecological sustainability involves monitoring of indicators and comparison of their states with performance targets that are deemed sustainable. The aim of this project is to test whether uneven aged silviculture can be used as a conservation tool to increase or maintain biodiversity. Bark beetles are ideal for studying this conflict, as this group is both species-rich and contains notorious pest species.

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