Results 61 to 70 of about 19,254 (265)

Nitrogen Turnover in Swedish Spruce Forest Ecosystems [PDF]

, 2002
Nitrate leaching from growing forests is not yet a widespread problem in Sweden, but nitrogen (N) deposition and high N retention in the soil during recent decades might have changed forest ecosystems towards N saturation.
Andersson, Pål
core  

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

Wildlife Biology, EarlyView.
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund, Torbjørn Ergon, Simon Filhol, Atle Mysterud   +3 more
wiley   +1 more source

A common fungal associate of the spruce bark beetle metabolizes the stilbene defenses of Norway spruce

, 2013
Norway spruce (Picea abies) forests suffer periodic fatal attacks by the bark beetle Ips typographus and its fungal associate, Ceratocystis polonica. Norway spruce protects itself against fungal and bark beetle invasion by the production of terpenoid ...
Wright, Louwrance P., Gershenzon, Jonathan, Paetz, Christian, Brand, Willi A., Schneider, BerndBohlmann, Joerg, Wadke, Namita, Schmidt, Axel, Fenning, Trevor M., Hammerbacher, Almuth   +8 more
core   +1 more source

Assessing the accuracy of field‐based versus laboratory methods for determining the age of roe deer

Wildlife Biology, EarlyView.
Accurate age determination in roe deer Capreolus capreolus is essential for selective harvesting and informed population management, yet field‐based methods widely used by hunters remain imprecise. This study compared field‐based and laboratory age determination methods in 204 harvested roe deer, categorized by sex and habitat type (forest versus open ...
Michael Manton, Mantas Sablinka, Darius Hardalau, Gediminas Brazaitis, Ovidiu Ionescu   +4 more
wiley   +1 more source

Heart rot of spruce and alder in forests of Latvia [PDF]

, 2012
Heart rot causes great decrease in timber quality throughout the world. In the conifer forests of Northern Hemisphere the most significant losses are caused by fungi from the Heterobasidion annosum species complex. The spread of the disease is favored by
Arhipova, Natalija
core  

Habitat selection of moose in Sweden in managed boreal forests with Pinus contorta and P. sylvestris

Wildlife Biology, EarlyView.
Human land use can take advantage of using exotic species to increase financial benefits. However, the use of exotic tree species might affect ecosystem functioning, potentially including the habitat use and movement behaviour of animals, modifying their ecological impact, and interactions with human land use.
Maria Bolund, Fredrik Stenbacka, Fredrik Widemo, John P. Ball, Göran Ericsson, Wiebke Neumann   +5 more
wiley   +1 more source

Outbreaks of European spruce bark beetle dramatically altered Norway spruce-dominated stands with implications for volant wildlife in the Białowieża Forest, Poland

Annals of Forest Science
Key message An outbreak of the European spruce bark beetle (Ips typographus L.) in spruce (Picea abies L.) dominated forest stands in the Białowieża Forest, Poland, has led to fundamental changes in forest characteristics.
Andrew Carr, Grzegorz Apoznański, Dorota Dobrowolska, Alek Rachwald   +3 more
doaj   +1 more source

North European platyphyllous forests: biodiversity dynamics and climate changes in northwest European Russia.

Silva Fennica, 1996
Distribution, biodiversity and reforestation dynamics of the platyphyllous forests in the Northwest European Russia were investigated. Data assembled from 21 landscape regions (250–350 km each) show special features of small-leaved lime ( Mill., Norway
Chtchoukine, Anton
doaj   +1 more source

Dead wood retention and the risk of bark beetle attack [PDF]

, 2002
Wind-felled Norway spruce trees left for conservation purposes and spruce stems stored as forest fuel may be colonised by the bark beetles Ips typographus and Pityogenes chalcographus (Coleoptera: Scolytidae).
Hedgren, Per Olof
core  

Late Quaternary history of North Eurasian Norway spruce ( Picea abies ) and Siberian spruce ( Picea obovata ) inferred from macrofossils, pollen and cytoplasmic DNA variation

, 2015
Aim We used combined palaeobotanical and genetic data to assess whether Norway spruce (Picea abies) and Siberian spruce (Picea obovata), two major components of the Eurasian boreal forests, occupied separate glacial refugia, and to test previous ...
van der Knaap, Willem Oscar, Sperisen, Christoph, Tollefsrud, Mari Mette, Latałowa, Małgorzata, Brochmann, Christian   +4 more
core   +1 more source