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11 results for “Aleppo pine”
Potential and realized distribution at 30m for Aleppo pine (Pinus halepensis) in Europe for 2000 - 2020
<p>Probability and uncertainty maps showing the potential and realized distribution for the Aleppo pine (<em>Pinus halepensis, Mill.</em>) for Europe from the dataset prepared by <a href="http://doi.org/10.5281/zenodo.5818021">Bonannella et al. (2022)</a> and predicted using Ensemble Machine Learning (EML). Potential distribution map cover the period 2018 - 2020; realized distribution cover the period 2000 - 2020, split in the following time periods:</p> <ul> <li>2000 - 2002,</li> <li>2002 - 2006,</li> <li>2006 - 2010,</li> <li>2010 - 2014,</li> <li>2014 - 2018,</li> <li>2018 - 2020.</li> </ul> <p>Files are named according to the following naming convention, e.g:</p> <ul> <li>veg_pinus.halepensis_anv.eml_md_30m_0..0cm_2000..2002_eumap_epsg3035_v0.3</li> </ul> <p>with the following fields:</p> <ul> <li>theme: e.g. <strong>veg</strong>,</li> <li>species code: e.g. <strong>pinus.halepensis</strong>,</li> <li>species distribution type: e.g. <strong>anv</strong> (= actual natural vegetation),</li> <li>species estimation method: e.g. <strong>eml</strong>,</li> <li>species estimation type: e.g. <strong>md</strong> ( = model deviation),</li> <li>resolution in meters e.g. <strong>30m</strong>,</li> <li>reference depths (vertical dimension): e.g. <strong>0..0cm</strong>,</li> <li>reference period begin end: e.g. <strong>2000..2002</strong>,</li> <li>reference area: e.g. <strong>eumap</strong>,</li> <li>coordinate system: e.g. <strong>epsg3035</strong>,</li> <li>data set version: e.g. <strong>v0.3</strong>.</li> </ul> <p>For each species is then easy to identify probability and uncertainty distribution maps:</p> <ul> <li>veg_pinus.halepensis_<strong>anv</strong>.eml_<strong>md</strong>: model uncertainty for realized distribution</li> <li>veg_pinus.halepensis_<strong>anv</strong>.eml_<strong>p</strong>: probability for realized distribution</li> <li>veg_pinus.halepensis_<strong>pnv</strong>.eml_<strong>md</strong>: model uncertainty for potential distribution</li> <li>veg_pinus.halepensis_<strong>pnv</strong>.eml_<strong>p</strong>: probability for potential distribution</li> </ul> <p>Files are provided as <a href="https://gdal.org/drivers/raster/cog.html">Cloud Optimized GeoTIFFs</a> and projected in the Coordinate Reference System ETRS89 / LAEA Europe (= EPSG code 3035). Styling files are provided in both <em>SLD</em> and <em>QML</em> format.</p> <p>If you would like to know more about the creation of the maps and the modeling:</p> <ul> <li><strong>watch</strong> the talk at Open Data Science Workshop 2021 (<a href="https://doi.org/10.5446/55256">TIB AV-PORTAL</a>)</li> <li><strong>access </strong>the repository with our R/Python scripts and follow the instructions (<a href="https://gitlab.com/geoharmonizer_inea/spatial-layers/-/tree/master/veg_mapping">GitLab</a>)</li> <li><strong>access</strong> the repository with the training dataset (<a href="http://doi.org/10.5281/zenodo.5818021">Zenodo</a>)</li> <li><strong>read</strong> the tutorial with executable code on our <a href="http://opengeohub.github.io/spatial-prediction-eml/spatiotemporal-ml.html#spatiotemporal-distribution-of-fagus-sylvatica">GitBook</a></li> </ul> <p>A publication describing, in detail, all processing steps, accuracy assessment and general analysis of species distribution maps is available on <a href="http://doi.org/10.7717/peerj.13728">PeerJ</a>. To suggest any improvement/fix use <a href="https://gitlab.com/geoharmonizer_inea/spatial-layers/-/issues">https://gitlab.com/geoharmonizer_inea/spatial-layers/-/issues</a>.</p>
Data from: Effects of forest plantations on the genetic composition of conspecific native Aleppo pine populations
Afforestation is a common and widespread management practice throughout the world, yet its implications for the genetic diversity of native populations are still poorly understood. We examined the effect of Aleppo pine (Pinus halepensis) plantations on the genetic composition of nearby conspecific native populations. We focused on two native populations in Israel with different levels of isolation from the surrounding plantations and compared the genetic diversity of naturally established young trees within the native populations with that of local native adults, using nine nuclear microsatellite markers. We found that the genetic composition of the recruits was significantly different from that of local adults in both populations, with allelic frequency changes between generations that could not be ascribed to random drift, but rather to substantial gene flow from the surrounding planted Aleppo pine populations. The more isolated population experienced a lower gene flow level (22%) than the less isolated population (49%). The genetic divergence between native populations at the adult-tree stage (Fst = 0.32) was more than twice as high as that of the young trees naturally established around native adults (Fst = 0.15). Our findings provide evidence for a rapid genetic homogenization process of native populations following the massive planting efforts in the last decades. These findings have important implications for forest management and nature conservation and constitute a warning sign for the risk of translocation of biota for local biodiversity.
FIGURE 2. Cinara palaestinensis s in The sexuales of Cinara palaestinensis Hille Ris Lambers, the Aleppo pine aphid (Hemiptera: Aphididae Lachninae)
FIGURE 2. Cinara palaestinensis s.str.—oviparous female: (a) ventral posterior abdomen, (b) antenna.
Volatilome of Aleppo Pine litter over decomposition process
<p>Biogenic Volatile Organic Compounds (BVOC) are largely accepted to contribute to both, atmospheric chemistry and ecosystem functioning. While the forest canopy is recognized as a major source of BVOC, emissions from plant litter have scarcely been explored with just a couple of studies being focused on emission patterns over litter decomposition process. The aim of this study was to quantitatively and qualitatively characterize BVOC emissions (C1-C15) from Pinus halepensis litter, one of the major Mediterranean conifer species, over a 15 month litter decomposition experiment. Senescent needles of P. halepensis were collected and placed in 42 litterbags where they underwent in situ decomposition. Litterbags were collected every 3 months and litter BVOC emissions were studied in vitro using both on-line (PTR-ToF-MS) and off-line analyses (GC-MS). Results showed a large diversity of BVOC (58 compounds detected), with a strong variation over time. Maximum total BVOC emissions were observed after 3 months of decomposition with 9.18 µg.gDM-1.h-1 mainly composed by terpene emissions (e.g. α-pinene, terpinolene, β-caryophyllene). At this stage, methanol, acetone and acetic acid were the most important non-terpenic volatiles representing respectively up to 26%, 10% and 26% of total emissions. This study gives an overview of the evolution of BVOC emissions from litter along with decomposition process and will thus contribute to better understand the dynamics and sources of BVOC emission in Mediterranean pine forests.</p>
Data from: Mortality versus survival in drought‐affected Aleppo pine forest depends on the extent of rock cover and soil stoniness
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Data from: Effects of forest plantations on the genetic composition of conspecific native Aleppo pine populations
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Data from: Inferring selection in instances of long‐range colonization: the Aleppo pine (Pinus halepensis) in the Mediterranean Basin
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Volatilome of Aleppo Pine litter over decomposition process
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FIGURE 3. Cinara palaestinensis s in The sexuales of Cinara palaestinensis Hille Ris Lambers, the Aleppo pine aphid (Hemiptera: Aphididae Lachninae)
FIGURE 3. Cinara palaestinensis s.str.—apterous male: (a) ventral view, (b) antenna.
FIGURE 1. Cinara palaestinensis s in The sexuales of Cinara palaestinensis Hille Ris Lambers, the Aleppo pine aphid (Hemiptera: Aphididae Lachninae)
FIGURE 1. Cinara palaestinensis s.str.—oviparous female: dorsal view.
Looking for local adaptation: convergent microevolution in Aleppo pine (Pinus halepensis).
<p>SNP dataset in Aleppo pine (<em>Pinus halepensis</em>) published in <em>Genes</em> <strong>2019</strong>, <em>10</em>(9), 673; https://doi.org/10.3390/genes10090673</p>
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