62,530 research outputs found
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
Cercopithecus solatus M. J. S. Harrison 1988
No full textCercopithecus solatus M. J. S. Harrison, 1988. J. Zool. (London), 215:562. TYPE LOCALITY: C Gabon, SE of Booue, Faret des Abeilles, River Bali, 0°14'S, 12°15'E. DISTRIBUTION: C Gabon. STATUS: CITES - Appendix II; IUCN - Vulnerable; endangered.Published as part of Colin P. Groves, 1993, Order Primates, pp. 243-277 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 265, DOI: 10.5281/zenodo.735312
Species composition of ground herb covers in olive groves and adjacent semi-natural habitats in the south of Iberian Peninsula
No full text[Methodology] We selected 40 paired olive groves from 20 localities, covering a cultivated area circa 35 km2 and encompassing a distance of 310 km between the most distant ones, hence widely distributed across the Guadalquivir Valley (Andalucía, Spain). Localities were selected to cover a wide gradient in landscape complexity, from landscapes dominated by olive groves to landscapes including a large fraction of natural (forests, scrublands, streams and pastures with native plants) or semi-natural habitats (gullies, vegetated edges and field margins) or other woody and annual crops. At each locality, the pair of olive groves differed in the herb cover management (20 low-intensity and 20 intensive groves) in 2016 while some of them changed their management in 2019, while sharing the same landscape context. Farm size and climatic and edaphic condition varied between localities but were relatively similar between the pair of farms within locality. Low-intensity management involved the maintenance of the ground herb cover most of the year through agroecological practices, such as grazing (mainly with sheep), mowing or stand maintaining between olive trees. Some of these low-intensity managed olive farms where also organic when, in addition, there was no use of pesticides nor synthesis fertilizers. In contrast, intensive management persistently reduced herb cover by herbicides and/or recurrent tillage. The landscape of each locality was classified in simple (characterized by vast extensions of olive groves with very few natural habitat patches), intermediate (olive groves are intermingled with annual crops and with greater extension of natural habitats) or complex (olive groves are scarcer and the area covered by forests, shrublands, streams and grasslands with native plants is larger).
The community of herb species was monthly sampled in each olive groves from April to June in 2016 and 2019, using 1-m2 quadrats. We surveyed 4-6 herbs quadrats per grove (in olive field habitats), depending on the orchard size (4 sampling points in small groves [10 ha]) and 2-4 herbs quadrats per olive grove in semi-natural habitats adjacent to olive field. Substantial work was done in the lab for the classification of the many species that we were not able to determine at species level in the field.
BBDD_Herbs_sps_habitat_farm.csv '[Files] BBDD_Farm_info.csv [shows the location and characteristics of sampled olive farms].-- BBDD_Herbs_sps_habitat_farm.csv [shows herb community detected per habitat within Olive_farm].-- Metada.csv [records information about the meaning of columns in ' Farm_info.csv, 'Plant_database_Habitats_ziziphus.csv', 'Our aim was to characterize the species composition of ground herb covers present in the olive groves and their semi-natural adjacent habitats of the southern Iberian Peninsula (Andalucia, Spain), according to herb cover management and landscape complexity of each grove. We selected 40 paired olive farms from 20 localities across Andalucía.This data set was compilated with funds by MICINN through European Regional Development Fund [SUMHAL, LIFEWATCH-2019-09-CSIC-4, POPE 2014-2020] [Work Package 9. Task 9.3.2. Model impact of land use change]. Data comes mainly from LIFE project OLIVARES VIVOS (LIFE14 NAT/ ES/1001094) of the European Commission and complemented partially with additional surveys under LIFEWATCH SUMHAL. CSIC is acknowledged for supporting Open Access publication.Please, see Metadata.csv file.Peer reviewe
The history and development of groves in English formal gardens
No full textThis chapter explores how when Antoine Dézallier d’Argenville published his La Theorie et la Pratique du Jardinage (1709) it became the main source of reference on the topic; it was translated into English and German and there were pirated editions in the Netherlands. This book clearly categorized types of layout and planting, providing a vocabulary for contemporary garden design, including parterres and groves, recognizing and describing six different types of groves. This treatise clearly had an influence on later gardens, but it has also since been recognized as summarizing earlier trends. This chapter investigates the effect of this treatise in England. By identifying types and trends in the design of groves before the date of publication and afterwards it investigates innovation in the design of these features
Impacts of agricultural intensification on soil erosion and sustainability of olive groves in Alentejo (Portugal)
No full textContext: Olive groves are key features of Iberian Mediterranean landscapes. With the intensification of olive grove production, some negative environmental impacts on soils must be considered to achieve farm sustainability.
Objectives: To estimate, theoretically and empirically, soil erosion in olive groves of Alentejo (Portugal) considering different planting densities and soil managements (i.e. conventional, integrated, organic), and related impacts on soil loss and farm sustainability.
Methods: Soil erosion was empirically calculated using sediment traps. Soil loss was modelled using the Universal Soil Loss Equation (USLE) model. The impact of erosion on farm sustainability was assessed by simulating future projections to 100 and 500 years.
Results: An overestimation of theoretical erosion rates for all olive management models compared to the empirical results was observed. Plant cover strongly contributed to reduce soil loss. Temporal simulations based on experimental data showed a longer sustainability of intensive groves than expected according to theoretical values.
Conclusions: Despite the negative impacts of intensive agriculture, this study highlights that it is essential to consider soil management impacts on erosion, an aspect that influences farm sustainability, regardless of planting density. Future studies should expand our experiments across a wider sample and locations of olive groves, to better discern how olive sustainability is impacted by different agricultural management options and decisions.Universidad Complutense de MadridDepto. de Estadística e Investigación OperativaFac. de Ciencias MatemáticasTRUEpu
Figure 1 in A taxonomic revision of the Tragulus mouse-deer (Artiodactyla)
No full textFigure 1. Measurement details of Tragulus skulls and mandibles (letters refer to text).Published as part of Meijaard, E. & Groves, C. P., 2004, A taxonomic revision of the Tragulus mouse-deer (Artiodactyla), pp. 63-102 in Zoological Journal of the Linnean Society 140 (1) on page 66, DOI: 10.1111/j.1096-3642.2004.00091.x, http://zenodo.org/record/543975
Figure 10 in A taxonomic revision of the Tragulus mouse-deer (Artiodactyla)
No full textFigure 10. Discriminant analysis of adult T. javanicus-like specimens, with corresponding correlation matrix.Published as part of Meijaard, E. & Groves, C. P., 2004, A taxonomic revision of the Tragulus mouse-deer (Artiodactyla), pp. 63-102 in Zoological Journal of the Linnean Society 140 (1) on page 78, DOI: 10.1111/j.1096-3642.2004.00091.x, http://zenodo.org/record/543975
Figure 8. Bivariate plots for reputed T in A taxonomic revision of the Tragulus mouse-deer (Artiodactyla)
No full textFigure 8. Bivariate plots for reputed T. napu specimens from the small Sundaland islands.Published as part of Meijaard, E. & Groves, C. P., 2004, A taxonomic revision of the Tragulus mouse-deer (Artiodactyla), pp. 63-102 in Zoological Journal of the Linnean Society 140 (1) on page 76, DOI: 10.1111/j.1096-3642.2004.00091.x, http://zenodo.org/record/543975
Uromys anak subsp. albiventer Groves & Flannery 1994, n.subsp.
No full textUromys anak albiventer n.subsp. Figs 6, 7, Table 1 Type material. HOLOTYPE, CSIRO Division of Wildlife and Ecology, Canberra no. CM.8532, adult male, skin and skull, from Uinba, Kubor Range, Papua New Guinea. Collected on 22 June 1963. Diagnosis. Distinguished from other subspecies as follows: i) coat more brown-toned; ii) venter much more broadly white, from throat to groin; iii) teeth smaller. Discussion. From Upper Bubu River region, as far west apparently as the Weyland Range. Of two specimens from Saiko, Bubu River, in the BM, one is entirely typical of this subspecies, while the other has the ventral white restricted as in nominotypical anak. In the Discriminant Analysis, both specimens fall with the present subspecies. To this subspecies belong a series of seven specimens (6 skins with skulls, 1 skull only) in the British Museum (Natural History), from the Kratke Mountains (Buntibasa, Kuraka, Apimuri) and east of the Hagen Range (Degabaga, Menebe). Certain other specimens may yet turn out to represent distinctive subspecies. These are from Lamende Range, near Mount Giluwe, and from Telefomin and Mount Elimbari. The Mount Giluwe specimen (BM 53.370) has the largest skull seen by us; the molars are however very small (molar row length 12.2 mm), and the tail is short (106% of head and body). The dorsal colouration is dark, and the venter has no white, being all grey; in these features it resembles U. a. rothschildi. The two Telefomin specimens are very small in size, but have large teeth. Five specimens from Mount Elimbari are also rather small in size, but have small teeth, and relatively long tails and ears. Only further material will allow us confidently to determine the nature of these variant populations.Published as part of Groves, C. P. & Flannery, Tim F., 1994, A revision of the genus Uromys Peters, 1867 (Muridae: Mammalia) with descriptions of two new species, pp. 145-169 in Records of the Australian Museum 46 (2) on page 155, DOI: 10.3853/j.0067-1975.46.1994.12, http://zenodo.org/record/465470
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