3,141 results match your criteria Andean Geology[Journal]


Media preferences, micro-morphometric analysis, and cardinal growth temperature determination for Phytophthora infestans sensu lato isolated from different hosts in Colombia.

Braz J Biol 2019 Apr 18. Epub 2019 Apr 18.

Departamento de Ciencias Agronómicas, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Calle 59A No. 63-20, Núcleo El Volador, Bloque 11, Oficina 117-13, Medellín, Colombia.

During the last years Phytophthora infestans sensu lato (Mont. De Bary) has caused epidemics in Colombia in Andean fruit crops such as Solanum quitoense and Solanum betaceum. Establishment of new or modified experimental procedures to study this pathogen is a mandatory subject for scientists. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1590/1519-6984.206460DOI Listing

Antibiotic-Resistant in Drinking Water Samples from Rural Andean Households in Cajamarca, Peru.

Am J Trop Med Hyg 2019 Apr 22. Epub 2019 Apr 22.

University of Basel, Basel, Switzerland.

Antibiotic resistance in pathogenic bacteria is a serious public health issue. The growing threat is a cause for concern and action to prevent the emergence of new resistant strains and the spread of existing ones to humans via the environment. This study aimed at identifying fecal pathogens in drinking water obtained from rural Andean households from Cajamarca, Peru, and measuring the antibiotic resistance profile of . Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.4269/ajtmh.18-0776DOI Listing

Impact of an Andean breakfast on biochemistry and immunochemistry laboratory tests: an evaluation on behalf COLABIOCLI WG-PRE-LATAM.

Biochem Med (Zagreb) 2019 Jun 15;29(2):020702. Epub 2019 Apr 15.

Section of Clinical Biochemistry; Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.

Introduction: In Andean countries, specifically in Ecuador, a food transition in the population has been observed because of economic growth. The Working Group for Preanalytical Phase in Latin America (WG-PRE-LATAM) of the Latin America Confederation of Clinical Biochemistry (COLABIOCLI) was established in 2017, and its main purpose is to study preanalytical variability and establish guidelines for preanalytical procedures in order to be implemented by clinical laboratories and healthcare professionals in Latin America. The aim of this study on behalf of COLABIOCLI WG-PRE-LATAM was to evaluate whether an Andean breakfast can interfere with routine biochemistry and immunochemistry laboratory tests. Read More

View Article

Download full-text PDF

Source
https://www.biochemia-medica.com/en/journal/29/2/10.11613/BM
Publisher Site
http://dx.doi.org/10.11613/BM.2019.020702DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6457920PMC
June 2019
1 Read

Diphyllobothriidea in the north area of the Andean Patagonia: Epidemiology in urban dogs, morphometrical and molecular identification, with comments on wild carnivores.

Vet Parasitol Reg Stud Reports 2018 Dec 6;14:161-169. Epub 2018 Nov 6.

Laboratorio de Parasitología, INIBIOMA (Universidad Nacional del Comahue-CONICET), (8400) Av. Quintral 1250, San Carlos de Bariloche, Río Negro, Argentina. Electronic address:

Diphyllobothriidea are the principal agents of Diphyllobothriosis, a widespread food-borne cestodosis. Accurate identification of the species in samples is therefore crucial for diagnosis and epidemiology in wild and domestic animals, and also humans. We aim to identify at specific level the causative agent, and provide an observational, descriptive, and transversal study of the epidemiology of this zoonosis in urban dogs. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.vprsr.2018.11.001DOI Listing
December 2018

Genetic diversity and zoonotic potential of rotavirus A strains in the southern Andean highlands, Peru.

Transbound Emerg Dis 2019 Apr 19. Epub 2019 Apr 19.

Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil, 21.941-902.

Interspecies transmission is an important mechanism of evolution and contributes to RVA diversity. In order to evaluate the detection frequency, genetic diversity, epidemiological characteristics, and zoonotic potential of rotavirus A (RVA) strains in fecal specimens from humans and animals cohabiting in the same environment in the department of Cusco, Peru, by molecular analysis, 265 fecal specimens were obtained from alpacas, llamas, sheep, and shepherd children, and tested for RVA by RT-PCR. Genotyping was performed by multiplex PCR and sequence analysis. Read More

View Article

Download full-text PDF

Source
https://onlinelibrary.wiley.com/doi/abs/10.1111/tbed.13207
Publisher Site
http://dx.doi.org/10.1111/tbed.13207DOI Listing
April 2019
1 Read

Global, national, and urban burdens of paediatric asthma incidence attributable to ambient NO pollution: estimates from global datasets.

Lancet Planet Health 2019 Apr 10. Epub 2019 Apr 10.

Milken Institute School of Public Health, George Washington University, Washington, DC, USA. Electronic address:

Background: Paediatric asthma incidence is associated with exposure to traffic-related air pollution (TRAP), but the TRAP-attributable burden remains poorly quantified. Nitrogen dioxide (NO) is a major component and common proxy of TRAP. In this study, we estimated the annual global number of new paediatric asthma cases attributable to NO exposure at a resolution sufficient to resolve intra-urban exposure gradients. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S25425196193004
Publisher Site
http://dx.doi.org/10.1016/S2542-5196(19)30046-4DOI Listing
April 2019
4 Reads

Multivariate analyses of the global acceptability rates of male intimate partner violence (IPV) against women based on World Values Survey data.

Authors:
Arno Tausch

Int J Health Plann Manage 2019 Apr 12. Epub 2019 Apr 12.

Department of Political Science, Innsbruck University, Innsbruck, Austria.

Major international organizations like UN Women and the World Health Organization (WHO) estimate that nowadays, more than one-third of all women in the world suffer male intimate partner violence (IPV) at some point in their lives and that eliminating the societal acceptancy of that violence is a major element in combatting it. While there is consensus that IPV has disastrous public health consequences, so far, little is known about the drivers of IPV acceptability rates. This article therefore analyzes available global opinion data from the World Values Survey (WVS) project in 72 countries of the world, representing some four-fifths of the global population. Read More

View Article

Download full-text PDF

Source
https://onlinelibrary.wiley.com/doi/abs/10.1002/hpm.2781
Publisher Site
http://dx.doi.org/10.1002/hpm.2781DOI Listing
April 2019
4 Reads

Fine-mapping of angular leaf spot resistance gene Phg-2 in common bean and development of molecular breeding tools.

Theor Appl Genet 2019 Apr 11. Epub 2019 Apr 11.

Centro Internacional de Agricultura Tropical (CIAT), Bean Program, Palmira, Colombia.

Key Message: The Common Bean Angular Leaf Spot Resistance Gene Phg-2 was fine-mapped to a 409-Kbp region, and molecular markers for breeders were developed and validated in field experiments. Common bean (Phaseolus vulgaris L.) is an important food legume in Latin America, Asia and Africa. Read More

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/s00122-019-03334-z
Publisher Site
http://dx.doi.org/10.1007/s00122-019-03334-zDOI Listing
April 2019
1 Read

Datasets of the environmental factors and management practices of the smallholder tomato production systems in the Colombian Andes.

Data Brief 2019 Jun 20;24:103844. Epub 2019 Mar 20.

Division of Mechatronics, Biostatistics and Sensors (MeBioS), Faculty of Bioscience Engineering, University of Leuven, Leuven, Belgium.

Datasets presented here were employed in the main work "Understanding the heterogeneity of smallholder production systems in the Andean tropics - The case of Colombian tomato growers" Gil, et al., 2019. In this region, tomato crop is developed under two technological levels: low, carried out under open field () conditions and, a high, by using greenhouses (). Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S23523409193019
Publisher Site
http://dx.doi.org/10.1016/j.dib.2019.103844DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6441722PMC
June 2019
1 Read

Sunken treasures in Andean lake show an empire's quest for control.

Authors:

Nature 2019 Apr;568(7751):146-147

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/d41586-019-01044-6DOI Listing

Analyses of African common bean ( L.) germplasm using a SNP fingerprinting platform: diversity, quality control and molecular breeding.

Genet Resour Crop Evol 2019 19;66(3):707-722. Epub 2019 Feb 19.

Genotyping Support Services (GSS), Generation Challenge Programme (GCP), c/o CIMMYT, Mexico, Mexico.

Common bean ( L.) is an important staple crop for smallholder farmers, particularly in Eastern and Southern Africa. To support common bean breeding and seed dissemination, a high throughput SNP genotyping platform with 1500 established SNP assays has been developed at a genotyping service provider which allows breeders without their own genotyping infrastructure to outsource such service. Read More

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/s10722-019-00746-0
Publisher Site
http://dx.doi.org/10.1007/s10722-019-00746-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6424151PMC
February 2019
2 Reads

Methods of collection, extender type, and freezability of semen collected from creole bulls raised in the tropical highlands of Ecuador.

Trop Anim Health Prod 2019 Apr 2. Epub 2019 Apr 2.

Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina.

This study was conducted to determine the best combination between two collection method and two extenders in the cryopreservation of semen from creole bulls adapted to highlands of the Ecuadorian Andes. Sixty ejaculates from three adult Creole bulls were evaluated after collection by artificial vagina (AV) and electroejaculation (EE). Semen samples were split into two aliquots and diluted with a soy lecithin extender (Andromed®; A) or an egg yolk-containing extender (Triladyl®; T) and packed in straws of 0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11250-019-01877-3DOI Listing
April 2019
1 Read

Thyroid Cancer in Ecuador, a 16 years population-based analysis (2001-2016).

BMC Cancer 2019 Apr 2;19(1):294. Epub 2019 Apr 2.

OneHealth Research Group, Faculty of Medicine, Universidad de las Americas, Calle de los Colimes y Avenida De los Granados, 170137, Quito, Ecuador.

Background: Thyroid cancer is the most frequent endocrine neoplasia worldwide. Information from Andean countries is scarce. In Ecuador there is no reports available of the epidemiology of this type of cancer. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s12885-019-5485-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6444541PMC
April 2019
2 Reads

The Trichopterygini (Lepidoptera, Geometridae) of Austral South America: description of new species from Chile.

Zookeys 2019 19;832:91-111. Epub 2019 Mar 19.

Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.

Four new species belonging to the genera Butler, Parra, Parra, and Parra from south-central Chile are described. The species are Ramos-González & Parra, , Ramos-González & Parra, , Ramos-González & Parra, , and Ramos-González & Parra, The genus Warren is reassigned to tribe Trichopterygini and Ramos-González & Parra, is described. Comparative diagnosis for all new species are provided, and illustrations of genitalia and the wing venation of the males for all new described species are given. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3897/zookeys.832.30851DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6435600PMC
March 2019
1 Read

Aegilips chilensis (Hymenoptera: Cynipoidea: Figitidae: Anacharitinae): Redescription and Biogeographic Considerations.

Neotrop Entomol 2019 Mar 29. Epub 2019 Mar 29.

Depto de Biologia Animal, Facultat de Biologia, Univ de Barcelona, Avda. Diagonal 645, 08028, Barcelona, Spain.

Aegilips chilensis Bréthes, 1918 is redescribed and illustrated. Aegilips chilensis is considered an endemic species of the Andean region, characterized for having anteroposterior cephalic processes, resembling spines, formed from the postgenal carina. This and other diagnostic characters are diagnosed and illustrated, and morphological affinities of Aegilips Haliday, 1835 with other Anacharitinae genera are discussed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s13744-019-00674-9DOI Listing

The first Paratropididae (Araneae, Mygalomorphae) from Colombia: new genus, species and records.

Zookeys 2019 14;830:1-32. Epub 2019 Mar 14.

Sección Entomología, Facultad de Ciencias, Universidad de La República, Iguá 4225, Montevideo, Uruguay Universidad de La República Montevideo Uruguay.

The family of mygalomorph spiders Paratropididae Simon, 1889 is here reported for the first time for Colombia, where it is represented by three genera (, , ) and eight species. One genus, , and six species constitute new taxa that are here diagnosed, described and illustrated. The geographical distribution of FO Pickard-Cambridge, 1896 and Dupérré, 2015 are also redescribed and expanded on the basis of new material examined. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3897/zookeys.830.31433DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6428803PMC
March 2019
1 Read

Polyextremophilic Bacteria from High Altitude Andean Lakes: Arsenic Resistance Profiles and Biofilm Production.

Biomed Res Int 2019 21;2019:1231975. Epub 2019 Feb 21.

Laboratorio de Investigaciones Microbiológicas de Lagunas Andinas (LIMLA), Planta Piloto de Procesos Industriales y Microbiológicos (PROIMI), CCT, CONICET, Av. Belgrano y Pasaje Caseros, 4000 San Miguel de Tucumán, Argentina.

High levels of arsenic present in the High Altitude Andean Lakes (HAALs) ecosystems selected arsenic-resistant microbial communities which are of novel interest to study adaptations mechanisms potentially useful in bioremediation processes. We herein performed a detailed characterization of the arsenic tolerance profiles and the biofilm production of two HAAL polyextremophiles, sp. Ver3 (Ver3) and sp. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1155/2019/1231975DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6409018PMC
February 2019

Carrion's disease: more than a neglected disease.

Parasit Vectors 2019 Mar 26;12(1):141. Epub 2019 Mar 26.

University Hospital, Goethe-University, Institute for Medical Microbiology and Infection Control, Frankfurt am Main, Germany.

Infections with Bartonella bacilliformis result in Carrion's disease in humans. In the first phase of infection, the pathogen causes a hemolytic fever ("Oroya fever") with case-fatality rates as high as ~90% in untreated patients, followed by a chronical phase resulting in angiogenic skin lesions ("verruga peruana"). Bartonella bacilliformis is endemic to South American Andean valleys and is transmitted via sand flies (Lutzomyia spp. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3390-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6434794PMC

Factors associated with poor physical performance in older adults of 11 Peruvian high Andean communities.

F1000Res 2019 15;8:59. Epub 2019 Jan 15.

Universidad de San Martín de Porres, Facultad de Medicina Humana, Centro de Investigación del Envejecimiento (CIEN), Lima, Peru.

Physical performance in the older adult has been extensively studied. However, only a few studies have evaluated physical performance among older adults of high Andean populations and none have studied the factors associated with it. The objective of this study was to evaluate factors associated with poor physical performance by using the Short Physical Performance Battery (SPPB) in older adults living in 11 Peruvian high Andean communities. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.12688/f1000research.17513.1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415321PMC
January 2019

Forest degradation and biomass loss along the Chocó region of Colombia.

Carbon Balance Manag 2019 Mar 23;14(1). Epub 2019 Mar 23.

Laboratoire Evolution et Diversité Biologique, UMR 5174, CNRS Université Paul Sabatier, Toulouse, France.

Background: Wet tropical forests of Chocó, along the Pacific Coast of Colombia, are known for their high plant diversity and endemic species. With increasing pressure of degradation and deforestation, these forests have been prioritized for conservation and carbon offset through Reducing Emissions from Deforestation and forest Degradation (REDD+) mechanisms. We provide the first regional assessment of forest structure and aboveground biomass using measurements from a combination of ground tree inventories and airborne Light Detection and Ranging (Lidar). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13021-019-0117-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446973PMC
March 2019
3 Reads

Dissecting the Pre-Columbian genomic ancestry of Native Americans along the Andes-Amazonia divide.

Mol Biol Evol 2019 Mar 20. Epub 2019 Mar 20.

University of Bologna, Laboratory of Molecular Anthropology & Centre for Genome Biology, Dept. of Biological, Geological and Environmental Sciences, Bologna, Italy.

Extensive European and African admixture coupled with loss of Amerindian lineages makes the reconstruction of pre-Columbian history of Native Americans based on present-day genomes extremely challenging. Still open questions remain about the dispersals that occurred throughout the continent after the initial peopling from the Beringia, especially concerning the number and dynamics of diffusions into South America. Indeed, if environmental and historical factors contributed to shape distinct gene pools in the Andes and Amazonia, the origins of this East-West genetic structure and the extension of further interactions between populations residing along this divide are still not well understood. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/molbev/msz066DOI Listing

Implications of variable late Cenozoic surface uplift across the Peruvian central Andes.

Sci Rep 2019 Mar 19;9(1):4877. Epub 2019 Mar 19.

Department of Geological Sciences and Institute for Geophysics, University of Texas at Austin, Austin, TX, 78712, USA.

Changes in Earth's surface elevation can be linked to the geodynamic processes that drive surface uplift, which in turn modulate regional climate patterns. We document hydrogen isotopic compositions of hydrated volcanic glasses and modern stream waters to determine late Cenozoic surface uplift across the Peruvian central Andes. Modern water isotopic compositions reproduce mean catchment elevations to a precision better than ±500 m (1σ). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41598-019-41257-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6424981PMC

Earthquake segmentation in northern Chile correlates with curved plate geometry.

Sci Rep 2019 Mar 13;9(1):4403. Epub 2019 Mar 13.

Centro Sismológico Nacional, Universidad de Chile, Santiago, Chile.

We performed an integrated analysis of the coseismic slip, afterslip and aftershock activity of the 2014 M 8.1 Pisagua earthquake. This earthquake seems to be spatially located between two major historical earthquakes, the 1868 M 8. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41598-019-40282-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6416342PMC

A new glassfrog (Centrolenidae) from the Chocó-Andean Río Manduriacu Reserve, Ecuador, endangered by mining.

PeerJ 2019 26;7:e6400. Epub 2019 Feb 26.

The Biodiversity Group, Tucson, AZ, USA.

We describe a new glassfrog from Río Manduriacu Reserve, Imbabura Province, on the Pacific slopes of the Ecuadorian Andes. The new species can be distinguished from most other glassfrogs by having numerous yellow spots on the dorsum and lacking membranes among fingers. Both morphological and molecular data support the placement of the species in the genus . Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.7717/peerj.6400DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404656PMC
February 2019

Scarabaeinae dung beetles from Ecuador: a catalog, nomenclatural acts, and distribution records.

Zookeys 2019 28;826:1-343. Epub 2019 Feb 28.

Universidade Federal de Mato Grosso, Instituto de Biociências, Departamento de Biologia e Zoologia. Av. Fernando Correa da Costa, 2367 Boa Esperança, Cuiabá Mato Grosso, 78060-900, Brazil Universidade Federal de Mato Grosso Cuiabá Mato Grosso Brazil.

The Ecuadorian territory is divided into four natural regions: the coastal lowlands, the Andean highlands, the Amazon basin, and the Galapagos Islands. Each of these regions has its own ecosystems and specific vegetation. The purpose of this work is to compile an updated catalog of the Scarabaeinae (Coleoptera: Scarabaeidae) of Ecuador that includes distributional data and several nomenclatural acts. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3897/zookeys.826.26488DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405737PMC
February 2019
3 Reads

Energy expenditure and body temperature variations in llamas living in the High Andes of Peru.

Sci Rep 2019 Mar 11;9(1):4037. Epub 2019 Mar 11.

Department of Animal Sciences, University of Göttingen, Albrecht-Thaer-Weg 3, 37075, Göttingen, Germany.

Some large herbivores exhibit seasonal adjustments in their energy metabolism. Therefore, our aim was to determine if the llama (one of the most extensively kept livestock breeds) exhibits seasonal adjustment of their energy expenditure, body temperature and locomotion, under its natural high altitude Andean habitat. For this purpose, energy expenditure, body temperature and locomotion were measured in seven non-pregnant llama dams for ten months on the Andean High Plateau (4400 m above sea level). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41598-019-40576-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6411917PMC

Unraveling patterns and processes of diversification in the South Andean-Patagonian Nassauvia subgenus Strongyloma (Asteraceae, Nassauvieae).

Mol Phylogenet Evol 2019 Mar 8;136:164-182. Epub 2019 Mar 8.

Instituto de Botánica Darwinion (CONICET-ANCEFN), Labardén 200, C.C. 22, B1642HYD, San Isidro, Provincia de Buenos Aires, Argentina.

Congruence among different sources of data is highly desirable in phylogenetic analyses. However, plastid and nuclear DNA may record different evolutionary processes such that incongruence among results from these sources can help unravel complex evolutionary histories. That is the case of Nassauvia subgenus Strongyloma (Asteraceae), a taxon with five putative species distributed in the southern Andes and Patagonian steppe. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ympev.2019.03.004DOI Listing
March 2019
1 Read

Evidence of Pathogenic Leptospira Infection in a Free-ranging Andean Fox ( Lycalopex culpaeus) from Central Chile.

J Wildl Dis 2019 Mar 11. Epub 2019 Mar 11.

1 Laboratorio de Enfermedades y Parásitos de Fauna Silvestre, Departamento de Ciencia Animal, Facultad de Ciencias Veterinarias, Universidad de Concepción, Vicente Méndez 595, Chillán, Chile.

We found evidence of infection and shedding of Leptospira serovars Ballum and Canicola in the Andean fox ( Lycalopex culpaeus) in Chile. We used PCR to demonstrate the presence of Leptospira DNA and microagglutination tests to identify serovars. Read More

View Article

Download full-text PDF

Source

Woody vegetation dynamics in the tropical and subtropical Andes from 2001 to 2014: Satellite image interpretation and expert validation.

Glob Chang Biol 2019 Mar 10. Epub 2019 Mar 10.

Departments of Geography and Rural Sociology, GeoSyntheSES Lab, Pennsylvania State University, State College, Pennsylvania.

The interactions between climate and land-use change are dictating the distribution of flora and fauna and reshuffling biotic community composition around the world. Tropical mountains are particularly sensitive because they often have a high human population density, a long history of agriculture, range-restricted species, and high-beta diversity due to a steep elevation gradient. Here we evaluated the change in distribution of woody vegetation in the tropical Andes of South America for the period 2001-2014. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/gcb.14618DOI Listing

Intraspecific developmental variation in the life cycle of the Andean Treefrog (Boana riojana): A temporal analysis.

J Morphol 2019 Apr;280(4):480-493

Instituto de Bio y Geociencias del NOA (IBIGEO-CONICET), Salta, Argentina.

Intraspecific variation during the anuran larval period has been analyzed mainly in relation to the timing of metamorphosis and body size at metamorphosis. However, other traits may vary as well. We examined two developmental series of Boana riojana from the same population in two consecutive years and describe intraspecific variation in larvae of this species. Read More

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1002/jmor.20958
Publisher Site
http://dx.doi.org/10.1002/jmor.20958DOI Listing
April 2019
2 Reads

A morphological database for Colombian anuran species from conservation-priority ecosystems.

Ecology 2019 Mar 8:e02685. Epub 2019 Mar 8.

Programa Ciencias de la Biodiversidad, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia.

Species traits provide a strong link between an organism's fitness and processes at community and ecosystem levels. However, such data remain scarce for amphibians in the Neotropics. Colombia is the country with the highest number of threatened amphibians and the second greatest number of amphibian species worldwide. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/ecy.2685DOI Listing

Control of breathing and respiratory gas exchange in high-altitude ducks native to the Andes.

J Exp Biol 2019 Apr 1;222(Pt 7). Epub 2019 Apr 1.

Department of Biology, McMaster University, Hamilton, ON, Canada, L8S 4K1.

We examined the control of breathing and respiratory gas exchange in six species of high-altitude duck that independently colonized the high Andes. We compared ducks from high-altitude populations in Peru (Lake Titicaca at ∼3800 m above sea level; Chancay River at ∼3000-4100 m) with closely related populations or species from low altitude. Hypoxic ventilatory responses were measured shortly after capture at the native altitude. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1242/jeb.198622DOI Listing
April 2019
5 Reads

Use of oral health care services in Peru: trends of socio-economic inequalities before and after the implementation of Universal Health Assurance.

BMC Oral Health 2019 Mar 7;19(1):39. Epub 2019 Mar 7.

Universidad de Buenos Aires, Buenos Aires, Argentina.

Background: Oral health inequalities are profound worldwide. Despite major improvements in oral health, inequalities exist for many racial and ethnic groups, by socioeconomic status, gender, age, and geographic location. Therefore, the purpose of this study was to investigate trends of socio-economic inequalities in access to oral health services in Peru before and after the implementation of Universal Health Assurance (AUS). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s12903-019-0731-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6407179PMC
March 2019
1 Read

Colistin-resistant Escherichia coli with mcr genes in the livestock of rural small-scale farms in Ecuador.

BMC Res Notes 2019 Mar 4;12(1):121. Epub 2019 Mar 4.

Health Administration Center, Gifu University, Gifu, Japan.

Objective: Emergence and dissemination of colistin-resistant (Co-R) bacteria harboring mobile colistin resistance genes pose a threat for treatment of infections caused by multi-drug resistant bacteria. Although the worldwide spread of Co-R bacteria is known, the precise state of Co-R bacterial dissemination in livestock of Andean countries remains unclear. Therefore, we investigated mcr-containing Co-R Escherichia coli dissemination in livestock on small-scale farms in two socioecologically different regions of Ecuador: the Amazonian rain-forest and the Pacific Coast. Read More

View Article

Download full-text PDF

Source
https://bmcresnotes.biomedcentral.com/articles/10.1186/s1310
Publisher Site
http://dx.doi.org/10.1186/s13104-019-4144-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6399824PMC
March 2019
12 Reads

Neuronal network analyses reveal novel associations between volatile organic compounds and sensory properties of tomato fruits.

Metabolomics 2018 Mar 31;14(5):57. Epub 2018 Mar 31.

CIBICI, Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina.

Introduction: The process of tomato (Solanum lycopersicum) breeding has affected negatively the fruit organoleptic properties and this is evident when comparing modern cultivars with heirloom varieties. Flavor of tomato fruit is determined by a complex combination of volatile and nonvolatile metabolites that is not yet understood.

Objectives: The aim of this work was to provide an alternative approach to exploring the relationship between tomato odour/taste and volatile organic compounds (VOCs). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11306-018-1355-7DOI Listing
March 2018
1 Read

Soil Bacterial Communities From the Chilean Andean Highlands: Taxonomic Composition and Culturability.

Front Bioeng Biotechnol 2019 5;7:10. Epub 2019 Feb 5.

Laboratorio de Bioinformática y Expresión Génica, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago, Chile.

The Atacama Desert is a highly complex, extreme ecosystem which harbors microorganisms remarkable for their biotechnological potential. Here, a soil bacterial prospection was carried out in the high Altiplano region of the Atacama Desert (>3,800 m above sea level; m a.s. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3389/fbioe.2019.00010DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6371850PMC
February 2019

Composition and Structure of Thripidae Populations in Crops of Three Geographical Regions in Colombia.

J Insect Sci 2019 Jan;19(1)

Earth and Life Institute, Biodiversity, Université catholique de Louvain, Louvain La Neuve, Belgium.

The composition and structure of thrips populations were determined in agroecosystems of 10 crops in the Andean, Caribbean, and Orinoquia regions of Colombia. From 18,183 identified specimens, 81 species belonging to 20 genera and three families were found. The Andean region was the most diverse with 60 species (n = 11,360, Chao 1 = 70. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/jisesa/iez009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6388104PMC
January 2019

Morphological Seed Characterization of Common ( L.) and Runner ( L.) Bean Germplasm: A Slovenian Gene Bank Example.

Biomed Res Int 2019 16;2019:6376948. Epub 2019 Jan 16.

Crop Science Department, Agricultural Institute of Slovenia, Hacquetova Ulica 17, 1000 Ljubljana, Slovenia.

Genetic resources comprised of 953 accessions of common ( L.) and 47 accessions of runner ( L.) bean from the national Slovene gene bank were characterized using fourteen morphological seed descriptors. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1155/2019/6376948DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6354170PMC
January 2019
2 Reads

New South American species of Crossopalpus Bigot (Diptera: Hybotidae: Tachydromiinae), including biogeographical insights and a reinterpretation of female abdominal tergite 10 in Drapetidini.

Zootaxa 2019 Feb 18;4559(1):111-135. Epub 2019 Feb 18.

PROTAX/CAPES Postdoctoral scholarship; Graduate Program in Entomology (PPG-Ent), Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, Petrópolis, CEP 69067-375, Manaus, Amazonas, Brazil..

Crossopalpus is a rather diverse genus of tachydromiine flies, but regionally the genus is nowhere very speciose. Knowledge on the South American Crossopalpus before this paper included two described species from Andean related habitats, with several biomes from the eastern part of the continent being completely unexplored. Herein, we describe four new species of Crossopalpus from eastern South America, namely: C. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4559.1.4DOI Listing
February 2019

Schismatothelinae spiders (Araneae, Mygalomorphae, Theraphosidae) from Colombia: four new species and an approach to their diversity.

Zootaxa 2019 Jan 21;4545(4):548-562. Epub 2019 Jan 21.

Grupo de Investigación en Insectos Neotropicales, Universidad del Magdalena, Santa Marta, Magdalena, Colombia..

The spider subfamily Schismatothelinae from Colombia is revised. One new species of Euthycaelus Simon 1889 and three new species of Schismatothele Karsch 1879 are named, as well as new geographical records provided. E. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4545.4.6DOI Listing
January 2019

Highland biodiversity of Fanniidae (Insecta, Diptera): fourteen new species from the Andes and Central America.

Zootaxa 2019 Jan 31;4551(3):330-360. Epub 2019 Jan 31.

Instituto Superior de Formación Docente Salomé Ureña, Santo Domingo, República Dominicana. Grupo de Entomologia, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia..

In the neotropics, vegetation formations at high elevations are often unique, with their own characteristic vegetation because of unique and complex evolutionary histories. The complexity of the biogeographic and ecological structure of the fauna is demonstrated by the specialized fauna and flora occurring in these regions. Fanniidae (Diptera) is one of these specialized groups that became very diversified in the highlands. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4551.3.4DOI Listing
January 2019

Toxicity and oviposition deterrence of essential oils of Clinopodium nubigenum and Lavandula angustifolia against the myiasis-inducing blowfly Lucilia sericata.

PLoS One 2019 20;14(2):e0212576. Epub 2019 Feb 20.

Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.

Cutaneous myiasis is a severe worldwide medical and veterinary issue. In this trial the essential oil (EO) of the Andean medicinal plant species Clinopodium nubigenum (Kunth) Kuntze was evaluated for its bioactivity against the myiasis-inducing blowfly Lucilia sericata (Meigen) (Diptera Calliphoridae) and compared with that of the well-known medicinal plant species Lavandula angustifolia Mill. The EOs were analysed and tested in laboratory for their oviposition deterrence and toxicity against L. Read More

View Article

Download full-text PDF

Source
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0212576PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6382167PMC
February 2019
2 Reads
3.234 Impact Factor

Using ecological niche models to describe the geographical distribution of the myiasis-causing Cochliomyia hominivorax (Diptera: Calliphoridae) in southern South America.

Parasitol Res 2019 Apr 19;118(4):1077-1086. Epub 2019 Feb 19.

Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Angel Gallardo 470, C1405DJR, Buenos Aires, Argentina.

In southern South America, namely Argentina and Chile, Cochliomyia hominivorax (Coquerel) is the main myiasic agent on humans and domestic animals. The distribution pattern of the species is poorly known and the southern limit of its geographic distribution is unclear. The aims of this study are to elucidate the basic environmental factors associated with occurrence of this myiasic species, evaluation of models constructed on the basis of occurrence data based on adult specimen records to predict geographic occurrence of myiasis, evaluation of unsurveyed sites of high potential of occurrence of the species, and recognition and prioritization of areas that need medical control and specific prophylaxis practices related to this pest. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00436-019-06267-0DOI Listing
April 2019
3 Reads

Balancing plant conservation and agricultural production in the Ecuadorian Dry Inter-Andean Valleys.

PeerJ 2019 13;7:e6207. Epub 2019 Feb 13.

Department of Bioscience, Aarhus University, Aarhus, Denmark.

Background: Conserving both biodiversity and ecosystem services is a major goal of the Convention on Biological Diversity. Hotspots for biodiversity in the Andes significantly overlap with areas with dense human populations that sustain their economy through agricultural production. Therefore, developing management forms that reconcile food provisioning services-such as agriculture-with biodiversity conservation must be addressed to avoid social conflicts and to improve conservation in areas where biodiversity co-occurs with other ecosystem services. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.7717/peerj.6207DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6377594PMC
February 2019

Human Genetic Adaptation to High Altitude: Evidence from the Andes.

Genes (Basel) 2019 Feb 15;10(2). Epub 2019 Feb 15.

Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.

Whether Andean populations are genetically adapted to high altitudes has long been of interest. Initial studies focused on physiological changes in the O₂ transport system that occur with acclimatization in newcomers and their comparison with those of long-resident Andeans. These as well as more recent studies indicate that Andeans have somewhat larger lung volumes, narrower alveolar to arterial O₂ gradients, slightly less hypoxic pulmonary vasoconstrictor response, greater uterine artery blood flow during pregnancy, and increased cardiac O utilization, which overall suggests greater efficiency of O₂ transfer and utilization. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/genes10020150DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410003PMC
February 2019

More than 5 Years! An Unusually Long-Lived Dung Beetle (Scarabaeinae) in an Andean Agricultural Landscape.

Neotrop Entomol 2019 Feb 18. Epub 2019 Feb 18.

Biólogo, Univ de Caldas, Manizales, Colombia.

Despite their importance as ecological indicators of anthropic perturbation, most of our knowledge about Neotropical dung beetles (Coleoptera: Scarabaeinae) is derived from studies conducted at the community level. To date, at a global scale, there is still incipient knowledge about the population ecology of the Scarabeinae species. The study of these insects at the population level offers new data pertaining to demographic aspects such as population size and adult longevity in the field. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s13744-019-00673-wDOI Listing
February 2019

Antenatal melatonin modulates an enhanced antioxidant/pro-oxidant ratio in pulmonary hypertensive newborn sheep.

Redox Biol 2019 Apr 29;22:101128. Epub 2019 Jan 29.

Programa de Fisiopatología, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Av. Salvador 486, Providencia 7500922, Santiago, Chile; International Center for Andean Studies (INCAS), Universidad de Chile, Baquedano s/n, Putre, Chile. Electronic address:

Chronic hypobaric hypoxia during fetal and neonatal life induces neonatal pulmonary hypertension. Hypoxia and oxidative stress are driving this condition, which implies an increase generation of reactive oxygen species (ROS) and/or decreased antioxidant capacity. Melatonin has antioxidant properties that decrease oxidative stress and improves pulmonary vascular function when administered postnatally. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.redox.2019.101128DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6375064PMC
April 2019
2 Reads

Alkamides from Tropaeolum tuberosum inhibit inflammatory response induced by TNF-α and NF-κB.

J Ethnopharmacol 2019 May 10;235:199-205. Epub 2019 Feb 10.

Department of Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.

Ethno-pharmacological Relevance: Tropaeolum tuberosum, commonly known as "Mashua", is one of the plants most frequently used by Andean (Peruvian-Bolivian) people as food and medicine. It is used as a remedy against a wide range of diseases, especially those related with inflammation.

Objectives: This study aims to identify compounds active against inflammatory related conditions. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jep.2019.02.015DOI Listing
May 2019
5 Reads
3.115 Impact Factor

Tick burden in Bos taurus cattle and its relationship with heat stress in three agroecological zones in the tropics of Colombia.

Parasit Vectors 2019 Feb 7;12(1):73. Epub 2019 Feb 7.

School of Agriculture and Environment, Massey University, Palmerston North, 4474, New Zealand.

Background: Ticks have a negative effect on dairy and beef cattle production systems around the world, with the concomitant risk they represent for the transmission of some important infectious diseases. Colombian cattle breeds are distributed across different agroecological regions and are exposed to different environmental challenges. In humid and warmer climates such as those from the tropics, tick burden and heat stress are important factors that can compromise livestock performance. Read More

View Article

Download full-text PDF

Source
https://parasitesandvectors.biomedcentral.com/articles/10.11
Publisher Site
http://dx.doi.org/10.1186/s13071-019-3319-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6367763PMC
February 2019
8 Reads

Genome wide association study discovers genomic regions involved in resistance to soybean cyst nematode (Heterodera glycines) in common bean.

PLoS One 2019 7;14(2):e0212140. Epub 2019 Feb 7.

Department of Plant Pathology, North Dakota State University, Fargo, North Dakota, United States of America.

Common bean (Phaseolus vulgaris L.) is an important high protein crop grown worldwide. North Dakota and Minnesota are the largest producers of common beans in the USA, but crop production is threatened by soybean cyst nematode (SCN; Heterodera glycines Ichinohe) because most current cultivars are susceptible. Read More

View Article

Download full-text PDF

Source
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0212140PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6366866PMC
February 2019