@article{Hågvar_Bækken_2005, title={Forest strips left along water and bog can be valuable for birds. A case of experimental cutting}, volume={28}, url={https://boap.uib.no/index.php/ornis/article/view/191}, DOI={10.15845/on.v28i0.191}, abstractNote={<p class="MsoNormal" style="margin: 0mm 0mm 0pt; mso-layout-grid-align: none;"><span style="mso-ansi-language: EN-GB;" lang="EN-GB"><span style="font-size: small;"><span style="font-family: Times New Roman;">An experimental cutting was performed in Grue municipality, Hedmark, to study the value for birds of retaining a forest strip along bog and water. Two study areas of mature coniferous forest were selected, each 600 x 200 m, with one of the long sides towards either water or bog. Before logging started, all bird territories were mapped during two years. In the third breeding season, a 50 m wide forest strip remained adjacent to water and bog, and in the fourth season a 25 m wide forest strip. Both along bog and water, the 25 m wide forest strip supported a species- and individual-rich bird fauna, with higher density than before cutting. This is in accordance with an extensive study in remaining forest strips adjacent to water and bogs in South-East Norway, where the authors adviced to set aside 30 m wide strips. Literature data indicate that the rich bird life in such buffer zones may be due to a concentration of insects blown in from the open clearcut area.</span></span></span></p>}, journal={Ornis Norvegica}, author={Hågvar, Sigmund and Bækken, Bjørn Tore}, year={2005}, month={Jan.}, pages={51–57} }