Results 51 to 60 of about 78,165 (330)

Morpho-anatomical characteristics and content of nutritive macro elements in needles of fir and spruce and their varieties in Serbia [PDF]

open access: yesArchives of Biological Sciences, 2013
The aim of the study is to establish, based on the morphological characteristics of shoots and morpho-anatomical characteristics of needles as well as the content of micro-elements in needles, whether there are differences between Pyramidal Fir (
Ratknić M.   +2 more
doaj   +1 more source

The importance of Silver fir (Abies alba Mill.) in comparison to spruce (Picea abies (L.) Karst.) and oak (Quercus petraea (Matt.) Liebl.) for arboreal Heteroptera communities in Bavarian forests [PDF]

open access: yes, 2005
Heteropteran communities in the canopies of Silver fir (Abies alba) and spruce (Picea abies) were studied at three lowland and three mountainous sites throughout Bavaria using flight-interception traps.
Goßner, Martin
core  

Climate Change Has Already Reshaped North American Forest Pest Dynamics: Insights From Multidecadal Process‐Based Modelling

open access: yesGlobal Change Biology Communications, EarlyView.
Climate change has rapidly expanded and shifted suitable climate conditions for eight major forest pests across North America, especially toward northern and higher elevation areas. Host exposure and overlap among pests are increasing, raising ecological and economic risks, and signaling accelerating future impacts under continued warming.
Yan Boulanger   +5 more
wiley   +1 more source

The Influence of Physical Treatments on Seed Germination and Seedling Development of Spruce (Picea abies [L.] Karst.) [PDF]

open access: gold, 2022
Steluţa-Maria Sîngeorzan   +11 more
openalex   +1 more source

Occurrence, morphology and growth of understory saplings in Swedish forests [PDF]

open access: yes, 2004
Growing demands for a multipurpose forestry leads to increased use of silvicultural systems that avoid clear-cutting. Regeneration in such systems is based on establishment and ingrowth of new seedlings under a more or less closed canopy.
Wikberg, Per-Erik
core  

Retrospective Analysis of Wood Anatomical Traits Reveals a Recent Extension in Tree Cambial Activity in Two High-Elevation Conifers [PDF]

open access: yes, 2017
The study of xylogenesis or wood formation is a powerful, yet labor intensive monitoring approach to investigate intra-annual tree growth responses to environmental factors.
Angela L. Prendin   +5 more
core   +2 more sources

The effect of light availability and spatio‐temporal heterogeneity on the soil seed bank diversity in temperate forests

open access: yesOikos, EarlyView.
Light is a key driver of understory plant diversity, also important for seed germination, yet its effect on forests soil seed bank diversity remains underexplored. This study assessed the impact of both light availability and spatio‐temporal heterogeneity on soil seed bank diversity.
Barbara Meyers   +3 more
wiley   +1 more source

Simultaneous Real-Time Measurement of Isoprene and 2-Methyl-3-Buten-2-ol Emissions From Trees Using SIFT-MS

open access: yesFrontiers in Plant Science, 2020
The C5 hemiterpenes isoprene and 2-methyl-3-buten-2-ol (MBO) are important biogenic volatiles emitted from terrestrial vegetation. Isoprene is emitted from many plant groups, especially trees such as Populus, while emission of MBO is restricted to ...
Ann-Sophie Lehnert   +5 more
doaj   +1 more source

The Douglas-Fir Genome Sequence Reveals Specialization of the Photosynthetic Apparatus in Pinaceae. [PDF]

open access: yes, 2017
A reference genome sequence for Pseudotsuga menziesii var. menziesii (Mirb.) Franco (Coastal Douglas-fir) is reported, thus providing a reference sequence for a third genus of the family Pinaceae.
Cardeno, Charis   +21 more
core   +2 more sources

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

open access: yesOikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli   +4 more
wiley   +1 more source

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