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Dataset results
34 results for “Arctostaphylos”
Arctostaphylos pungens (Ericaceae) - leaf - margin of upper + lower surface
Image of Arctostaphylos pungens (Ericaceae) - leaf - margin of upper + lower surface
Arctostaphylos pungens (Ericaceae) - leaf - showing orientation on twig
Image of Arctostaphylos pungens (Ericaceae) - leaf - showing orientation on twig
Arctostaphylos pungens (Ericaceae) - bark - of a medium tree or large branch
Image of Arctostaphylos pungens (Ericaceae) - bark - of a medium tree or large branch
Arctostaphylos pungens (Ericaceae) - bark - of a small tree or small branch
Image of Arctostaphylos pungens (Ericaceae) - bark - of a small tree or small branch
Arctostaphylos pungens (Ericaceae) - leaf - whole upper surface
Image of Arctostaphylos pungens (Ericaceae) - leaf - whole upper surface
Arctostaphylos pungens (Ericaceae) - bark - of a medium tree or large branch
Image of Arctostaphylos pungens (Ericaceae) - bark - of a medium tree or large branch
Arctostaphylos pungens (Ericaceae) - twig - orientation of petioles
Image of Arctostaphylos pungens (Ericaceae) - twig - orientation of petioles
Arctostaphylos pungens (Ericaceae) - bark - of a large tree
Image of Arctostaphylos pungens (Ericaceae) - bark - of a large tree
Arctostaphylos pungens (Ericaceae) - twig - orientation of petioles
Image of Arctostaphylos pungens (Ericaceae) - twig - orientation of petioles
Arctostaphylos pungens (Ericaceae) - whole tree (or vine) - general
Image of Arctostaphylos pungens (Ericaceae) - whole tree (or vine) - general
Arctostaphylos pungens (Ericaceae) - whole tree (or vine) - general
Image of Arctostaphylos pungens (Ericaceae) - whole tree (or vine) - general
Arctostaphylos uva-ursi (L.) Spreng. (BR0000015255075V)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Arctostaphylos sp. (Ericaceae) - whole tree (or vine) - general
Image of Arctostaphylos sp. (Ericaceae) - whole tree (or vine) - general
H. J. Andrews Experimental Forest site, station Andrews Watershed 3, study of plant cover of Arctostaphylos columbiana in units of percent on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from H. J. Andrews Experimental Forest (AND) contains plant cover of Arctostaphylos columbiana measurements in percent units and were aggregated to a yearly timescale.
H. J. Andrews Experimental Forest site, station Andrews Watershed 1, study of plant cover of Arctostaphylos columbiana in units of percent on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from H. J. Andrews Experimental Forest (AND) contains plant cover of Arctostaphylos columbiana measurements in percent units and were aggregated to a yearly timescale.
Allopatry, hybridization, and reproductive isolation in Arctostaphylos: phenology and field morphology
<p class="Body"><span><span><span><span><span><span><span><span><span><span><b>Premise of the study</b>: Hybridization plays a key role in introgressive adaptation, speciation, and adaptive radiation as a source of evolutionary innovation. Hybridization is considered common in <i>Arctostaphylos</i>, yet species boundaries are retained in stands containing multiple species. <i>Arctostaphylos</i> contains diploids and tetraploids, and recent phylogenies indicate two clades; we hypothesize combinations of these traits limit or promote hybridization rates. </span></span></span></span></span></span></span></span></span></span></p> <p class="Body"><span><span><span><span><span><span><span><span><span><span><b>Methods</b>: We statistically analyzed co-occurrence patterns of species by clade membership and ploidy level from 87-0.1 ha plots. We sampled multiple sites to analyze for percent hybridization based on morphology. Finally, phenophases were analyzed by scoring herbarium sheets for a large number of taxa from both clades as well as tetraploids, and second, surveying three field sites over two years for divergence in phenological stages between co-occurring taxa.</span></span></span></span></span></span></span></span></span></span></p> <p class="Body"><span><span><span><span><span><span><span><span><span><span><b>Key results</b>: Most taxa in <i>Arctostaphylos</i> are allopatric relative to other congenerics. When two taxa co-occur, the patterns are a diploid with a tetraploid, or two diploids from different clades. When three taxa co-occur, the pattern is two diploids from different clades and a tetraploid. Field and herbarium data both indicate flowering phenology is displaced between diploids from the two clades; one of the diploid clades and tetraploids overlap considerably. </span></span></span></span></span></span></span></span></span></span></p> <p class="Body"><span><span><span><span><span><span><span><span><span><span><b>Conclusions</b>: The two deep clades in <i>Arctostaphylos</i> are genetically distant, with hybrids rare or non-existent when taxa co-occur. Reproductive isolation between clades is enhanced by displaced flowering phenology for co-occurring species. Within clades, taxa appear to have few reproductive barriers other than an allopatric distribution or different ploidy levels.</span></span></span></span></span></span></span></span></span></span></p>
Data from: Mechanisms of severe dieback and mortality in a classically drought-tolerant shrubland species (Arctostaphylos glauca)
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Allopatry, hybridization, and reproductive isolation in Arctostaphylos: phenology and field morphology
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Data from: Conservation genetics of the endangered Del Mar manzanita (Arctostaphylos glandulosa supsp. crassifolia) based on RAD sequencing data
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Figures 41-44 from: van Nieukerken EJ, Davis DR, Swain SV, Epstein ME (2024) A new North American species of Etainia (Lepidoptera, Nepticulidae), feeding on Arbutus and Arctostaphylos species (Ericaceae). ZooKeys 1193: 195-218. https://doi.org/10.3897/zookeys.1193.116982
Figures 41-44 Leafmine damage caused by Etainia thoraceleuca41 Marin Co., CA: S. Swain, leafmine on Marina strawberry tree, Arbutus × 'Marina' 42 CA: Sonoma Co., S. Swain, leafmine on manzanita, Arctostaphylos spec. 43 CA: San Diego Co., S.J. Seybold, MA Siefker, coll., leafmine on Marina strawberry tree, Arbutus × 'Marina' 44 CA: Marin Co., S.J. Seybold, coll., mines on stems and leaves from manzanita, Arctostaphylos spec.
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