Search for dissertations about: "saproxylic insects"

Showing result 1 - 5 of 7 swedish dissertations containing the words saproxylic insects.

2. 1. Wood-living beetle diversity and Swedish forest management

   Author : Oskar Gran; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; biodiversity; forestry; harvest; insects; landscape; management;

   Abstract : Humans have impacted Fennoscandian forests for thousands of years, through grazing, burning, and since the industrial revolution increasingly through efficient industrial forestry. These impacts have changed the composition and structure of these forests, by reducing forest age, simplifying forest structure, and reducing the amount of broadleaved trees, among other things. READ MORE

4. 2. Old-Growth Forests in the High Coast Region in Sweden and Active Management in Forest Set-Asides

   Author : Jennie Sandström; Bengt-Gunnar Jonsson; Mattias Edman; Mikael Ohlson; Mittuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coarse woody debris; Dead wood; Dendrochronology; Fire history; Forest conservation; Forest structure; Log; Meta-analysis; Pine heath forest; Prescribed burning; Saproxylic fungi; Saproxylic beetles; Snag; Wood-inhabiting fungi; Aktiv skötselmetod; Bevarandebiologi; Brandhistorik; Dendrokronologi; Död ved; Hällmarkstallskog; Lågproduktiv skog; Meta-analys; Naturvård; Naturvårdsbrand; Skogsstruktur; Solbelyst död ved; Stock; Torraka; Vedlevande svamp; Vedlevande insekter; Åldersstruktur;

   Abstract : In today´s intensively managed landscape, very few forests with old-growth characteristics and little human impact exist. One of the rare exceptions is pine forests on rocky soils, a forest type which has probably escaped extensive human use because of its low productivity. READ MORE

5. 3. Habitat composition and restocking for conservation of the white-backed woodpecker in Sweden

   Author : Kristoffer Stighäll; Per-Erik Olsson; Grzegorz Mikusinski; Örebro universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; White-backed woodpecker; Dendrocopos leucotos; Sweden; deciduous forest; suitable habitat; fragmentation; saproxylic insects; captive breeding; restocking; Biology; Biologi;

   Abstract : In Sweden, intense human land use, especially forestry, has led to profound changes in the landscape over time, especially within the forest ecosystems. A consequence of this is that several specialist species have become endangered. One group of specialists is the woodpeckers. READ MORE

6. 4. Spatiotemporal monitoring of rare and elusive saproxylic beetles - A pheromone based approach

   Author : Björn Eriksson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Forest ecosystems are under severe pressure from global environmental changes and increasing demands of wood-related products. During the last century, intensified management regimes have led to the decline of many previously common forest habitats, with catastrophic effects for biodiversity. READ MORE

7. 5. Long and short term effects of stump harvesting on saproxylic beetles and ground flora

   Author : Jon Andersson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Abstract : Research on the effects from forest management on biodiversity has been going on for decades but still there are many questions unanswered. With every introduction of a new forestry method there is risk for increased pressure on biodiversity. The harvesting of low stumps left after final harvesting is a relatively new method used in forestry. READ MORE