Results 41 to 50 of about 138,247 (175)

Canopy position and tree size structure the distribution of honeydew‐producing scale insects (Hemiptera: Coccoidea) in a temperate hardwood forest

Ecological Entomology, EarlyView.
Scale insect abundance peaked in the upper canopy of sugar maples. Parthenolecanium peaked on older internodes; Lepidosaphes on the current leader. Internodes longer than the previous carried more scales; wider ones fewer. Abstract Forest canopies are vertically stratified habitats in which microclimate and host tissue quality vary with height.
Susan M. Frye, Sandy M. Smith, Sean C. Thomas   +2 more
wiley   +1 more source

Identification of gene pools used in restoration and conservation by chloroplast microsatellite markers in Iberian pine species

Forest Systems, 2017
Aim of study: To contribute to the characterization of the origin of material used in afforestation, restoration or conservation activities by using Cp-SSR markers. Area of study: We used information from the natural range of Iberian pines, from Spain.
Enrique Hernández-Tecles, Jorge de las Heras, Zaida Lorenzo, Miguel Navascués, Ricardo Alia   +4 more
doaj   +1 more source

Fragmented grasslands in different landscape structures provide different opportunities for cavity‐nesting Hymenoptera

Insect Conservation and Diversity, EarlyView.
Grassland fragmentation effects on cavity‐nesting Hymenoptera are habitat‐specific. Isolated sand steppe fragments are associated with higher brood‐cell abundance. In loess steppes, higher flower frequency increases bee brood‐cell production and parasitoid activity. Abstract The global decline in insects threatens ecosystem functioning, but the drivers
Edina Török, Róbert Gallé, Dávid Korányi, Zsolt Józan, Tamás Lakatos, Katalin Szitár, Péter Batáry   +6 more
wiley   +1 more source

Classification and ecology of Pinus nigra forest vegetation

, 2022
Forests dominated by Pinus nigra are naturally distributed in mountain regions of (sub-)Mediterranean Europe, Anatolia, and partly North Africa. The ecology, and in part the distribution, of these vegetation types are shared with forests dominated by ...
Novaković-Vuković, Marijana
core   +1 more source

Some Changes in Taxonomy of Pines (Pinus L.) Native to Turkey

Forestist, 2011
Recent taxonomic studies and discussion lead us to overlook the taxonomic positions of the native Pinus L. taxa for Turkey. Based on the latest publications (especially Frankis, 2000; Farjon, 2005, 2010; Zsolt and István, 2010), herbarium and field ...
Ünal Akkemik, Ünal Akkemik, Ünal Akkemik, Ünal Akkemik, Ünal Akkemik, Hatice Yılmaz, Hatice Yılmaz, Hatice Yılmaz, Hatice Yılmaz, Dilek Oral, Dilek Oral, Dilek Oral, Ali Kaya, Ali Kaya   +13 more
doaj   +1 more source

Production potential and structural variability of pine stands in the Czech Republic: Scots pine (Pinus sylvestris L.) vs. introduced pines - case study and problem review

Journal of Forest Science, 2020
Scots pine (Pinus sylvestris L.) is one of the most important tree species in Eurasia. During the past centuries, it has been extensively introduced into artificial monocultures, but is currently experiencing a number of problems related to climate ...
Vilém Podrázský, Zdeněk Vacek, Stanislav Vacek, Jan Vítámvás, Josef Gallo, Anna Prokůpková, Giuseppe D'Andrea   +6 more
doaj   +1 more source

Functional memory of drought affects leaf chemical defenses and microbial interactions in aspen

New Phytologist, EarlyView.
Experimental design of the common garden study. Summary Drought is an important driver of tree mortality, but its long‐term impacts on trait expression remain poorly understood. Leaves are a key interface at which trees respond to abiotic stress, and foliar traits such as chemical defenses and microbial communities may play a role in determining post ...
Aubrey M. Hawks, Jaycie C. Fickle, Kelly L. Kerr, Dale L. Forrister, Allison M. Perkins, Efthymia Symeonidi, Madelyn Allen, Cannon Fehrenbach, Hsiao‐Nung Chen, Richard L. Lindroth, William R. L. Anderegg, Talia L. Karasov   +11 more
wiley   +1 more source

Impact of plot size and model selection on forest biomass estimation using airborne LiDAR: A case study of pine plantations in southern Spain

Journal of Forest Science, 2017
We explored the usefulness of LiDAR for modelling and mapping the stand biomass of two conifer species in southern Spain. We used three different plot sizes and two statistical approaches (i.e.
Rafael M. NAVARRO-CERRILLO, Eduardo GONZÁLEZ-FERREIRO, Jorge GARCÍA-GUTIÉRREZ, Carlos J. CEACERO RUIZ, Rocío HERNÁNDEZ-CLEMENTE   +4 more
doaj   +1 more source

Climatic niche and neutral genetic diversity of the six Iberian pine species: a retrospective and prospective view [PDF]

, 2010
Quaternary climatic fluctuations have left contrasting historical footprints on the neutral genetic diversity patterns of existing populations of different tree species.
Soto de Viana, Álvaro
core   +1 more source

Decades of High Nitrogen Deposition Mainly Enhanced Eutrophication Rather Than Acidification of Dutch Forest Soils

Earth's Future, Volume 14, Issue 9, September 2026.
Abstract In the last decades, forest in the Netherlands have been exposed to high levels nitrogen (N) deposition, which allows to assess the fate and impacts of N and evaluate the concept of N saturation in this large scale “experiment” and related soil acidification.
Anjo de Jong, Wim de Vries
wiley   +1 more source