Results 41 to 50 of about 1,845 (158)

Recruitment dynamics in conifer-dominated uneven-aged forests in the carpathians

Forest Ecosystems
In permanently uneven-aged forests, continuous ingrowth of recruitment into higher stand layers is a critical process for the formation and maintenance of differentiated stand structures.
Jaroslav Vencurik, Michal Bosela, Ladislav Šumichrast, Anna Petrová, Peter Jaloviar, Denisa Sedmáková, Zuzana Parobeková, Ján Pittner, Ivan Repáč, Stanislav Kucbel   +9 more
doaj   +1 more source

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source

Picein and piceol concentrations in Norway spruce

Ecotoxicology and Environmental Safety, 1990
The concentrations of the glucoside picein and its aglucone piceol (4-hydroxy acetophenone) in the needles of Norway spruce (Picea abies (L.) Karsten) are considered indicators of plant stress. By use of two clones and a natural population of Norway spruce it was shown that the picein concentration was dependent on the site and the provenance of the ...
openaire   +2 more sources

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

Artificially induced drought stress affects seasonal foliar litterfall, nutrient contents, and nutrient masses in mature European beech (Fagus sylvatica [L.]) and Norway spruce (Picea abies [L.] Karst.)

Trees, Forests and People
We examined the effects of drought-induced stress on foliar litter production, nutrient contents, and nutrient masses in mature European beech (Fagus sylvatica [L.]) and Norway spruce (Picea abies [L.] Karst.) over a two-year period (October 2015 ...
Matthias Ulbricht, Peter Biber, Thomas Rötzer, Enno Uhl, Karin Pritsch, Bernhard Michalke, Hans Pretzsch   +6 more
doaj   +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

Boron retranslocation in Scots pine and Norway spruce [PDF]

Tree Physiology, 2004
We previously traced 10B-enriched boric acid from shoots to roots to demonstrate the translocation of boron (B) in Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) seedlings. To gain a more detailed understanding of B translocation, we sought: (1) to demonstrate B retranslocation directly, by showing that foliar-applied 10B ...
Tarja, Lehto, Anu, Lavola, Riitta, Julkunen-Tiitto, Pedro J, Aphalo   +3 more
openaire   +2 more sources

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 Bodlund, 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