Search results for "Population"

showing 10 items of 9945 documents

The Hamburg/ESO R-process Enhanced Star survey (HERES)

2004

We report on a dedicated effort to identify and study metal-poor stars strongly enhanced in r-process elements ([r/Fe] > 1 dex; hereafter r-II stars), the Hamburg/ESO R-process Enhanced Star survey (HERES). Moderate-resolution (~2A) follow-up spectroscopy has been obtained for metal-poor giant candidates selected from the Hamburg/ESO objective-prism survey (HES) as well as the HK survey to identify sharp-lined stars with [Fe/H] < -2.5dex. For several hundred confirmed metal-poor giants brighter than B~16.5mag (most of them from the HES), ``snapshot'' spectra (R~20,000; S/N~30 per pixel) are being obtained with VLT/UVES, with the main aim of finding the 2-3% r-II stars expected to be a…

population II [stars]PhysicsAstrophysics (astro-ph)FOS: Physical sciencesabundances [Galaxy]Astronomy and AstrophysicsAstrophysicsStar (graph theory)AstrophysicsSpectral lineabundances [stars]Neutron captureStarssurveysSpace and Planetary SciencePhenomenological modelhalo [Galaxy]Astronomy Astrophysics and Cosmologyr-processSpectroscopyRadioactive decayAstronomy & Astrophysics
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Additional file 4: of Diversity, evolution, and function of myriapod hemocyanins

2018

Data S1. Nucleotide sequences of the Hc and PPO cDNAs and gene identified in this study. (ZIP 81 kb)

population characteristicshuman activities
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Additional file 5: of Transcriptomic metaanalyses of autistic brains reveals shared gene expression and biological pathway abnormalities with cancer

2019

Full differential gene expression meta-analysis results of cancer data. (ZIP 31237 kb)

population characteristicshuman activities
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Additional file 5: of Transcriptomic metaanalyses of autistic brains reveals shared gene expression and biological pathway abnormalities with cancer

2019

Full differential gene expression meta-analysis results of cancer data. (ZIP 31237 kb)

population characteristicshuman activities
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Supplementary table 2 from Empirical links between natural mortality and recovery in marine fishes

2017

Estimates of natural mortality and maximum per capita population growth rate for marine fishes.

population characteristicssocial sciences14. Life underwatergeographic locationshealth care economics and organizations
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Supplementary table 2 from Empirical links between natural mortality and recovery in marine fishes

2017

Estimates of natural mortality and maximum per capita population growth rate for marine fishes.

population characteristicssocial sciences14. Life underwatergeographic locationshealth care economics and organizations
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Mitochondrial sequence analysis of Salamandra taxa suggests old splits of major lineages and postglacial recolonizations of Central Europe from disti…

2000

Representatives of the genus Salamandra occur in Europe, Northern Africa and the Near East. Many local variants are known but species and subspecies status of these is still a matter of dispute. We have analysed samples from locations covering the whole expansion range of Salamandra by sequence analysis of mitochondrial D-loop regions. In addition, we have calibrated the rate of divergence of the D-loop on the basis of geologically dated splits of the closely related genus Euproctus. Phylogenetic analysis of the sequences suggests that six major monophyletic groups exist (S. salamandra, S. algira, S. infraimmaculata, S. corsica, S. atra and S. lanzai) which have split between 5 and 13 milli…

population differentiationSalamandra infraimmaculataRange (biology)BiogeographyPopulationZoologySubspeciesSalamandra algiraphylogenyDNA MitochondrialGeneticsAnimalsSalamandraD-loopeducationEcology Evolution Behavior and SystematicsEuproctusbiogeographyeducation.field_of_studybiologyEcologybiology.organism_classificationBiological EvolutionEuropeGenetics PopulationFranceSalamandra
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Nuovi dati sull’espansione dell’occhione Burhinus oedicnemus in Sicilia. Una riflessione sulla citizen science

2023

New data on the expansion of the Eurasian Thick-knee Burhinus oedicnemus in Sicily. A consideration of citizen science.In this work, we collected records of Eurasian Thick-knee observa-tions in Sicily by using scientific literature, citizen science programs, and social networks as data sources. The aims of this work is creat-ing a complete and up-to-date dataset, which also includes the authors’ targeted research in the field. As compared with records previously reported in literature, the data collected here, which cover the last fif-teen years, show a clear expansion trend for the Eurasian Thick-kneein Sicily. About one third of these new records come from Facebook groups dedicated to bio…

population dynamics regional distribution habitat changesSettore BIO/05 - Zoologia
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AGGIORNAMENTO SULLA DISTRIBUZIONE DEL SUCCIACAPRE Caprimulgidae) IN SICILIA CAPRIMULGUS EUROPAEUS (Aves

2021

Caprimulgus europaeus In recent years Update on the distribution of breeding Nightjar in Sicily. there have been numerous observations of Nightjar in areas where it had never previously been observed. In some cases the reason may be a deeper exploration, but in other cases the possible explanation is the expansion of the species. However, it is quite interesting the change in the habitat by this species. The present paper provides an update of its status based on data collected in the fifteen years following the publication of the last Sicilian Atlas of breeding birds.

population dynamics wild fires habitat change
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ESPANSIONE DELLA RONDINE MONTANA PTYONOPROGNE RUPESTRIS (SCOPOLI) IN SICILIA (Aves Hirundinidae)

2021

Expansion of the Eurasian Crag Martin Ptyonoprogne rupestris (Scopoli) in Sicily (Aves Hirun dinidae). Data collected during the last fifteen years on the distribution of the Eurasian Crag Martin in Sicily and the comparison with those recorded in literature show an expansion trend for this species. While in the newly colonized areas the nesting sites have been observed mainly on natural habitats, where its occurrence was previously recorded the species shows and adaptation to exploit also anthropogenic habitats, such as buildings or other infrastructures.

population dynamicspopulation dynamics regional distribution habitat change.regional distributionhabitat change
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