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geographicaldistribution, etc ; aerosols; meteorology; models; ozone; pollution control; summer; China; Show all 8 Subjects
Abstract:
... Continuous aggravated surface O₃ over North China Plain (NCP) has attracted widely public concern. Herein, we evaluated the effects of changes in aerosols, precursor emissions, and meteorology on O₃ in summer (June) of 2015–2019 over NCP via 8 scenarios with WRF-Chem model. The simulated mean MDA8 O₃ in urban areas of 13 major cities in NCP increased by 17.1%∼34.8%, which matched well with the obs ...
geographicaldistribution, etc ; epidemiology; governance; liver; liver abscess; males; monitoring; parasitology; Mexico; Show all 9 Subjects
Abstract:
... The epidemiological behaviour of the main extraintestinal complication due to E. histolytica (amoebic liver abscess, ALA) has been little explored in developing countries. Since Mexico meets the characteristics to be considered as endemic, the aim of this work was to analyze the national surveillance data (seven years) of ALA issued by the General Directorate of Epidemiology. An analysis of cases ...
geographicaldistribution, etc ; Bolbitis; DNA; biogeography; ferns and fern allies; monophyly; paraphyly; polyphyly; Africa; Asia; Show all 10 Subjects
Abstract:
... Bolbitis is a pantropical fern genus of Dryopteridaceae with ca. 80 species mainly in tropical Asia. Earlier studies confirmed the monophyly of Bolbitis when Mickelia is excluded and identified three major clades in Bolbitis. However, earlier studies are based on relatively small sampling and the majority of Asian species are not sampled. In this study, DNA sequences of three plastid markers of 16 ...
geographicaldistribution, etc ; Pinus pinaster; Quercus pyrenaica; climate; climate change; decision making; ecological restoration; environment; land use; niches; prediction; stakeholders; trees; vegetation; Spain; Show all 15 Subjects
Abstract:
... Climate change and land-use changes are the main drivers altering fire regimes and leading to the occurrence of megafires. Current management policies mainly focus on short-term restoration without considering how climate change might affect regeneration dynamics. We aimed to test the usefulness of ecological niche models (ENMs) to integrate the effects of climate change on tree species distributi ...
geographicaldistribution, etc ; antibiotic resistance; biogeography; climate; environment; equations; health effects assessments; human health; public health; regression analysis; risk; risk assessment process; risk reduction; China; Show all 14 Subjects
Abstract:
... Mangroves are prone to receive pollutants and act as a sink for antibiotic resistance genes (ARGs). However, knowledge of the human health risk of ARGs and its influencing factors in mangrove ecosystems is limited, particularly at large scales. Here, we applied a high-throughput sequencing technique combined with an ARG risk assessment framework to investigate the profiles of ARGs and their public ...
... Temperature is an important factor that affects geographic distribution, reproduction, and physiological processes of organisms. In this study, we used quantitative PCR to analyze the effects of low temperature stress (5 °C and − 2 °C) on the expression of fatty acid metabolism-related genes in different tissues of two wild populations(southern and northern) and three shell color strains (zebra, w ...
... Contrasting outcomes of statistical modelling methods for the same data may represent critical pieces of information about the biological process. Ecological niche and species distribution modelling are notorious for their keenness on algorithm testing although differences between method outcomes are seldom used to gain biological insight. Here we use the differences and similarities between point ...
... This study provides an in-depth analysis of the characteristics of stellar occultation events. Using 10 target star sources, the influence of orbital elements on the number, duration, and distribution of stellar occultation events was simulated and analyzed, and the constellation configuration was designed. The results showed the following points: (1) the orbital inclination had the greatest influ ...
geographicaldistribution, etc ; demography; genetic variation; Show all 3 Subjects
Abstract:
... Species distribution models (SDMs) are widely used in ecology. In theory, SDMs capture (at least part of) species' ecological niches and can be used to make inferences about the distribution of suitable habitat for species of interest. Because habitat suitability is expected to influence population demography, SDMs have been used to estimate a variety of population parameters, from occurrence to g ...
geographicaldistribution, etc ; Asteraceae; taxonomic revisions; Show all 3 Subjects
Abstract:
... A taxonomic revision of the Othonna coronopifolia group (Asteraceae: Senecioneae: Othonninae) is presented. Species in this group are twiggy shrublets with stiff, woody stems, leaves often on short-shoots (brachyblasts) and/or in axillary tufts, and moderately large, radiate flowering capitula, mostly borne on solitary peduncles on short-shoots. This account includes descriptions, complete nomencl ...
geographicaldistribution, etc ; biogeography; species abundance; Show all 3 Subjects
Abstract:
... AIM: A long‐standing question in ecology and biogeography is how the population of a species is distributed across space. The highest abundance has been hypothesized to be in the geographical centre or the niche centre, although mixed patterns from empirical studies have triggered a recent debate. Here, we propose a conceptual framework based on environmental suitability and dispersal to interpret ...
Nicolas Dubos; Clémentine Préau; Maxime Lenormand; Guillaume Papuga; Sophie Monsarrat; Pierre Denelle; Marine Le Louarn; Stien Heremans; Roel May; Philip Roche; Sandra Luque
geographicaldistribution, etc ; biodiversity; models; vertebrates; Show all 4 Subjects
Abstract:
... 1. Open-source biodiversity databases contain a large number of species occurrence records but are often spatially biased; which affects the reliability of species distribution models based on these records. Sample bias correction techniques require data filtering which comes at the cost of record numbers, or require considerable additional sampling effort. Since independent data is rarely availab ...
geographicaldistribution, etc ; animals; differential equation; Show all 3 Subjects
Abstract:
... A principal concern of ecological research is to unveil the causes behind observed spatio–temporal distributions of species. A key tactic is to correlate observed locations with environmental features, in the form of resource selection functions or other correlative species distribution models. In reality, however, the distribution of any population both affects and is affected by those surroundin ...
geographicaldistribution, etc ; Chrysomelidae; Kansas; Mexico; Show all 4 Subjects
Abstract:
... In this short communication, I present new geographic range extensions for 16 leaf beetle species. All specimens examined are deposited in the Mexican collection “Colección Nacional de Insectos Dr. Alfredo Barrera Marín”, National Museum of Natural History, Mexico City. ...
geographicaldistribution, etc ; phylogeny; species diversity; Show all 3 Subjects
Abstract:
... An earlier version of V.PhyloMaker has been broadly used to generate phylogenetic trees of vascular plants for botanical, biogeographical and ecological studies. Here, we update and enlarge this package, which is now called ‘V.PhyloMaker2’. With V.PhyloMaker2, one can generate a phylogenetic tree for vascular plants based on one of three different botanical nomenclature systems. V.PhyloMaker2 can ...
... KEY MESSAGE: Oak species displayed high interspecific functional trait variation. The resource use strategy among oaks both at the above and belowground organs was guided by the fast-slow continuum. Plant functional ecology has focused on the study of functional strategies and general patterns of trait covariation. Mostly, studies intend to elucidate how plants cope with resource capture both at t ...
geographicaldistribution, etc ; lightning; probability; research; Show all 4 Subjects
Abstract:
... This study of the global distribution of sprites is based on the new parameterization and WWLLN (World Wide Lightning Location Network) data for 2016. The information on the position, time, and power (peak current) for cloud-to-ground discharges is taken from the archive of the WWLLN. Parameterizations of the sprite initiation probability are proposed for positive and negative discharges. In the c ...
geographicaldistribution, etc ; climate; dynamics; greenhouses; Show all 4 Subjects
Abstract:
... Many of the observed changes of the climate system since the 1950s are unprecedented, and there is a high level of confidence in the conclusion that greenhouse gases (GHGs) have caused a substantial part of the observed global warming. In the meantime, we need to consider model errors, which are usually accumulated in long-term integration as a result of imperfect physical and numerical representa ...
geographicaldistribution, etc ; biogeography; ecology; evolution; uncertainty; Show all 5 Subjects
Abstract:
... Geographic ranges are a fundamental unit of biogeography and macroecology. Increasingly, paleontologists and ecologists alike are reconstructing geographic ranges of species from fossils, in order to understand the long-term processes governing biogeographic and macroevolutionary patterns. As these reconstructions have become increasingly common, uncertainty has arisen over the equivalency of pale ...
geographicaldistribution, etc ; humans; psychology; snails; taxonomy; Show all 5 Subjects
Abstract:
... Accurate ecological assemblage analysis requires that underlying taxonomic divisions reflect biological reality. However, the validity of many taxonomic hypotheses have never been rigorously confronted with replicable data. As a result, these categories might say more about human psychology than biology. We consider here the ways that statistically unchallenged taxonomic concepts can bias observed ...