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Bacillariophyceae; Copepoda; Cyclotella; Monoraphidium; adults; air; air temperature; altitude; biomass; climate change; community structure; lakes; limnology; phytoplankton; water temperature; zooplankton; Mexico
Abstract:
... The present long-term (1993–2013) study was aimed at identifying the effects of global change on the environmental characteristics and the plankton community of the tropical, high-altitude Lake Alchichica, Puebla, Mexico. We found no statistically significant increasing trend in air temperature, but an increase from 2002 to 2013, and interannual variability in the meteorological variables. Accordi ...
DNA barcoding; Neogene period; Stenopelmatus; geographical distribution; invertebrates; loci; mitochondria; mitochondrial DNA; phylogeny; phylogeography; species richness; Canada; Central America; Ecuador; Mexico
Abstract:
... The Jerusalem cricket subfamily Stenopelmatinae is distributed from south-western Canada through the western half of the United States to as far south as Ecuador. Recently, the generic classification of this subfamily was updated to contain two genera, the western North American Ammopelmatus , and the Mexican, and central and northern South American Stenopelmatus . The taxonomy of the latter genus ...
... ?AbstractHolothuria (Lessonothuria) coronatasp. nov. occurs in depths of 5–10 m off the Mexican Pacific coast at the Revillagigedo Archipelago. It is clearly distinguished from other species of the subgenus by the presence of tables with a circular disc and big peripheral holes, sometimes with a second series of peripheral ones, a disc with a spiny or smooth rim and a spire crossed by a single cro ...
... Reconstructing paleoenvironments on Mexico's Pacific coast is crucial to determine past climate conditions and natural hazard periodicities, vital for predicting future activities. Two sediment cores extracted from Laguna Nuxco, a coastal lagoon in Guerrero, were analyzed to provide a 4000-year paleoenvironmental record. Sediments dominated by shelly clay with low water and organic content, high c ...
... Dickinson Park is a difficult-to-access remote subalpine parkland in the Shoshone National Forest of Wyoming; it is located on the east slope of the Wind River Range (Central Rocky Mountains), immediately south of the Wind River Indian Reservation. The area has never been previously visited by bryologists. As a result of a bryological inventory conducted in the Park in 2012 (and subsequent laborat ...
Tania Martínez-León; Ricardo Clark-Tapia; Jorge E. Campos; Luz Isela Peinado-Guevara; Samuel Campista-León; Francisco Molina-Freaner; Nelly Pacheco-Cruz; Gabriel González-Adame; Juan José Von Thaden Ugalde; Cecilia Alfonso-Corrado
... Genetic studies in rare species are important to determine their patterns of genetic diversity among populations and implement conservation plans aimed to reduce extinction risks. Pachyphytum caesium is an endemic species with extremely small populations in central Mexico. This work analyzes the diversity and genetic structure of Pachyphytum cesium (Crassulaceae) to change the conservation status ...
... In this article, I discuss how sky mapping was carried out among the Pa Ipai peoples from Baja California in Mexico. This mapping was elaborated through an interdisciplinary study that combined cybercartography, ethnography, cultural astronomy, semiotics, and collaborative work. The central argument of the article focuses on how the cybercartographic sky atlas of the Pa Ipai people responded to th ...
... Alcidae (auks) is a family of wing-propelled diving Charadriiformes, which includes 24 extant species distributed in the Holarctic region. Here, we describe a fossil humerus of Pliocene Alcidae (approximately 4.5–3.5 Ma) from the Fukagawa Group in Hokkaido, Japan. Although this specimen is incomplete and the diagnostic characters of the specific genus are lacking, it shares similar characteristics ...
... Norape sorpresa sp. nov. Wagner & Matson occurs from extreme southeastern Arizona south into Sonora, Mexico. Beyond differences in leg color, adult external features do not allow ready separation of this species from the other two white Norape that occur north of Mexico. However, genital features, COI barcodes, and larval characters distinguish the three taxa. The adult and larval stages and male ...
... We describe a new species of Knob-scaled Lizards of the genus Xenosaurus from the Sierra de Juárez of Oaxaca, México. Although this new species was identified as a distinct, undescribed lineage (and sister taxon to X. grandis) by previous molecular phylogenetic studies of the genus, we documented that it also differs from all of its congeners by a unique combination of scalation and color-pattern ...
... Fisheries in Cuitzeo, the second largest Mexican lake, used to take place on the permanent freshwater East and Central Basins as opposed to the temporal, saline, and initially thought barren West Basin. The 1980 fisheries collapse forced fishers to look for non-conventional fishing products elsewhere in the lake. The West Basin’s temporal, saline-alkaline, and shallow water provides exceptional ha ...
DNA barcoding; Ishige foliacea; Japan; algae; epiphytes; flora; herbaria; lectotypes; new species; Korean Peninsula; Mexico
Abstract:
... Three species of the genus Ishige (Phaeophyceae, Ishigeaceae) are known from Korea, Japan and Mexico; they include Ishige foliacea Okamura, I. okamurae Yendo and I. sinicola (Setchell and N.L. Gardner) Chihara. Two species, I. foliacea and I. okamurae, are present in the algal flora of Korea and Japan. The original description of I. okamurae defined two forms of branches, filiform and foliose, but ...
... Opuntia spp. are cacti with high ecological, economic and conservation interest in semiarid environments, particularly in Mexico. We conducted a systematic search of the existing peer-reviewed literature about the state of knowledge of pollination ecology on these plants. We documented the most studied Opuntia species worldwide with an emphasis on Mexico. We found that only 15% of Opuntia species ...
... Large-scale optical sensing and precise, rapid assessment of seismic building damage in urban communities are increasingly demanded in disaster prevention and reduction. The common method is to train a convolutional neural network (CNN) in a pixel-level semantic segmentation approach and does not fully consider the characteristics of the assessment objectives. This study developed a machine-learni ...
biomass; clams; ecosystems; fisheries; littoral zone; Gulf of California; Mexico
Abstract:
... The shellfishery of the smooth Venus clam Chionista fluctifraga is not regulated in Mexico. Therefore, information on the ecology of this species and the effects of the fishery on its populations is necessary to inform management. We present results from a comparative analysis of the density, biomass, and size structure of smooth Venus clam populations in an area not subjected to harvest (UH) and ...
Psidium guajava; agricultural colleges; ascorbic acid; calcium; computer vision; data collection; disease outbreaks; fruits; gardens; guavas; Bangladesh; Caribbean; Mexico; South America
Abstract:
... Guava (Psidium guajava) is a delicious fruit native to Mexico, Central or South America, and the Caribbean region. It's high in vitamin C, Calcium, Pectins and is a good source of fiber. Due to concerns with natural and environmental resources, technical issues, and other impediments, the production level decreases day-to-day. However, we'll concentrate on the most critical challenges, such as inf ...
... Psidium friedrichsthalianum (O. Berg) Nied. is a tropical tree species in the Myrtaceae family, natively distributed from southern Mexico to eastern Venezuela and Ecuador and commonly known as "Cas'', "Costa Rican guava" or “Sour Guava”. The “Cas” produces a fruit with a rather distinctive acidic flavor and has bioactive compounds with biological potential equal or greater than common Guava; is co ...
Colin Jackson; Nanette Christie; Sharon Melissa Reynolds; Gerhard C. Marais; Yokateme Tii‐kuzu; Madison Caballero; Tamanique Kampman; Erik A. Visser; Sanushka Naidoo; Dominic Kain; Ross W. Whetten; Fikret Isik; Jill Wegrzyn; Gary R. Hodge; Juan J. Acosta; Alexander A. Myburg
DNA; Pinus; ancestry; ecology; genes; genotype; genotyping; hybrids; metagenomics; sequence analysis; single nucleotide polymorphism arrays; trees; Central America; Mexico
Abstract:
... We performed gene and genome targeted SNP discovery towards the development of a genome‐wide, multispecies genotyping array for tropical pines. Pooled RNA‐seq data from shoots of seedlings from five tropical pine species was used to identify transcript‐based SNPs resulting in 1.3 million candidate Affymetrix SNP probe sets. In addition, we used a custom 40 K probe set to perform capture‐seq in poo ...
... Household greenhouse-gas footprints (HGFs) are an important source of global emissions but can vary widely between urban and rural areas. These differences are important during the ongoing rapid, global, urbanization process. We provide a global overview of HGFs considering this urban-rural divide. We include 16 global regions, representing 80% of HGFs and analyze the drivers of urban and rural HG ...
Monte Carlo method; carcinogenicity; freshwater; groundwater; health effects assessments; land use; malathion; meta-analysis; probabilistic risk assessment; risk; systematic review; uncertainty; water pollution; Ethiopia; Iran; Mexico
Abstract:
... Pesticide applications and the proximity of land use to water matrices have resulted in discharges of pollutants including Malathion —one of the most widely used organophosphorus pesticides— to water resources such as marine, freshwater, and under groundwater. Exposure to malathion through consumption of contaminated water may cause deleterious health effects on consumers. Determining the amount o ...
... AIM: The availability of data related to species occurrences has favoured the development of species distribution models using only observations of presence. These data are intrinsically biased by the sampling effort. Presence‐only (PO) species distribution models (SDM) typically account for this effect by introducing additional data considered to be related with the sampling. This approach, howev ...
Bayesian theory; Gobiesocidae; Miocene epoch; Pleistocene epoch; Pliocene epoch; allopatry; biological speciation; gene flow; geographical distribution; habitats; life history; mitochondria; models; monophyly; nuclear genome; shorelines; Ecuador; El Salvador; Mexico; Peru
Abstract:
... Marine species that are widely distributed in the Tropical Eastern Pacific (TEP) has served as a model for studying biogeographic patterns resulting from the effects of intraregional habitat discontinuities and oceanographic processes on the diversification and evolution of cryptobenthic reef fishes. Tomicodon petersii, a clingfish (Gobiesocidae) endemic to the TEP, is found on very shallow rocky ...
climate change; drought; energy; food production; green infrastructure; local government; waste management; Mexico
Abstract:
... Peri-urban spaces are critical components of urban systems and highly vulnerable to climate change (CC). Viable adaptation strategies for these spaces should consider the interconnectedness between cities and their peri-urbanities, and their vulnerability–adaptation–resilience dynamics, which emphasizes understanding their state of accumulative vulnerability, beyond the environmental realm. Furthe ...
... Ceratozamia, a genus of Zamiaceae, is one of the most species rich genera of gymnosperms in Mexico with a high level of species endemism. Over the last two decades, their known diversity has increased considerably because of extensive field work. Recently, 16 new species were described as a result of revision of species complexes and new explorations in southern Mexico. Here, we describe a new spe ...
... BACKGROUND: Restoration practices usually emphasize on the structural part of the biodiversity; also, most studies have focused on plants and very few have been conducted on arthropods and its function after restoration. The Pedregal de San Angel Ecological Reserve (PSAER) is a protected area immersed in Mexico City and it has been drastically affected by different anthropogenic disturbances. The ...
Bursera; Dacryodes; Eocene epoch; Miocene epoch; Neotropics; Oligocene epoch; Protium; Steatornis caripensis; bee pollination; bioactive properties; center of diversity; cerrado; cryptic species; dioecy; ethnobotany; germination; habitats; leaves; monoecy; new genus; new species; parthenocarpy; phylogeny; trees; wind; Amazonia; Andes region; Brazil; Caribbean; Central America; Mexico
Abstract:
... This review of Neotropical Burseraceae emphasizes developments since the last major review of the family in 2011. The Burseraceae comprise a Laurasian group (represented by Eocene fossils in the Northern Hemisphere) that originally dispersed through Central America into Amazonia. During cooling and drying events in the Oligocene, the frost-intolerant northern American progenitors were likely drive ...
... KEY MESSAGE: A systematic review from 1962 to August 2021 summarizes the research on Hartwegʼs pine (Pinus hartwegii). We identify research gaps and propose new direction for future studies and discuss the main study topics. Hartwegʼs pine (Pinus hartwegii Lindl.) is a high-value timber species adapted to the harsh alpine environment of high-elevation mountains (3000–4200 m) in Mexico, where it pr ...
Coryphaena hippurus; fish; fish consumption; marine pollution; muscle tissues; muscles; risk; surface water temperature; Gulf of California; Mexico
Abstract:
... The concentrations of As, Cd, Cu, Pb and Zn were measured in muscle tissue of Coryphaena hippurus captured in the southern Gulf of California to determine inter-annual variations and their relation with environmental parameters for the period 2006–2015; additionally, health risk to consumers was assessed according to levels of studied elements and rate of fish consumption in northwest Mexico. Duri ...
German Rivillas-Ospina; Diego Casas; Mauro Antonio Maza-Chamorro; Marianella Bolívar; Gabriel Ruiz; Roberto Guerrero; José M. Horrillo-Caraballo; Milton Guerrero; Karina Díaz; Roberto del Rio; Erick Campos
National Oceanic and Atmospheric Administration; Python; Weibull statistics; climate; data collection; mathematics; probability; storms; user interface; wind; Colombia; Mexico
Abstract:
... This work presents APPMAR 1.0, an application written in the Python programming language that downloads, processes, and analyzes wind and wave data. This application is composed of a graphical user interface (GUI) that contains two main modules: the first module downloads data from WAVEWATCH III® (WW3) production hindcasts by the National Oceanic and Atmospheric Administration (NOAA); the second m ...
... The paper deals with the removal of arsenic (As), hydrated silica (HS), and coexisting ions from groundwater by electrocoagulation (EC) using a laboratory-scale up-flow reactor with sacrificial iron anodes (1018 steel, >99% wt. Fe). Natural groundwater, taken in the northern region of Mexico, contained 25.7 μg L⁻¹ As, 237.8 mg L⁻¹ HS, 1.43 mg L⁻¹ F⁻, 45.0 mg L⁻¹ SO₄²⁻, 0.61 mg L⁻¹ PO₄³⁻, pH 8.62, ...
... Urban ecosystems are evolutionarily recent novel environments acting as biodiversity filters. Psittacidae birds are considered successful urban adapters mainly due to their generalist feeding and opportunistic behavior, allowing them to occupy environments from cold temperate to dry xeric areas. Therefore, it is important to understand how these species interact in the urban environment. We studie ...
... Shifting from fossil-fuel (FF) to renewable energy systems, a process known as energy transition (ET), is crucial for developing countries as the ET brings new opportunities to accomplish leapfrog development for achieving carbon neutrality. Parallel to climate change, developing countries face energy security and independence issues with extra pressures such as the Covid-19 pandemic and increasin ...
Ana Cecilia Fernández-Gaxiola; Carlos Cruz-Casarrubias; Selene Pacheco-Miranda; Joaquín Alejandro Marrón-Ponce; Amado David Quezada; Armando García-Guerra; Jason Donovan
corn; food quality; obesity; prices; wheat; Latin America; Mexico
Abstract:
... The contributions of processed foods to the overweight and obesity problem in Latin America are well known. Engagement with the private and public sectors on possible solutions requires deeper insights into where and how these products are sold and the related implications for diet quality. This article characterizes the diversity of wheat and maize processed foods (WMPFs) available to consumers i ...
... Wastewater-based epidemiology offers a time- and cost-effective way to monitor SARS-CoV-2 spread in communities and therefore represents a complement to clinical testing. WBE applicability has been demonstrated in a number of cases over short-term periods as a method for tracking the prevalence of SARS-CoV-2 and an early-warning tool for predicting outbreaks in the population. This study reports S ...
Leonardo Beltrán-Rodríguez; Angélica Romero-Manzanares; Ma. Amparo Borja-de la Rosa; Juan Ignacio Valdez-Hernández; Mario Luna-Cavazos; José Blancas-Vázquez
... KEY MESSAGE: Anatomical traits and features of Amphipterygium adstringens wood and hydraulic properties, both linked to sex, explain the performance of the species in its ecological niche. Androic and gynoic dioecious species respond structurally and functionally to the environmental conditions where they live. How are adaptive advantages manifested by each sex, from the anatomical water transport ...
... The contents of this Special Issue of Agroforestry Systems are from selected papers presented at the 16th North American Agroforestry Conference of the Association for Temperate Agroforestry held at Oregon State University in Corvallis, Oregon, from June 24–27, 2019. The conference attracted over 150 participants and the event included oral presentations with seven concurrent sessions, poster pres ...
Karla Cervantes-Martínez; Dalia Stern; José Salvador Zamora-Muñoz; Ruy López-Ridaura; José Luis Texcalac-Sangrador; Adrian Cortés-Valencia; Jorge Octavio Acosta-Montes; Martín Lajous; Horacio Riojas-Rodríguez
... Air pollution is a risk factor for type 2 diabetes (T2D). However, scarse longitudinal studies have evaluated this association in low- and middle-income countries, where 80% of the worldwide cases of T2D occur. Our aim was to estimate the association between PM₂.₅ and NO₂ exposure and incident T2D, in the Mexican Teachers' Cohort (MTC). We selected a subsample of female teachers from the MTC from ...
Russia; air transportation; carbon dioxide; climate; climate change; environmental health; environmental sustainability; greenhouse gas emissions; issues and policy; pollution; rail transportation; research; risk; urban population; urbanization; Brazil; India; Indonesia; Mexico
Abstract:
... Over the years, the world has been plagued by issues brought about by environmental degradation, climate change, and environmental health issues. Core to the environmental risk and security issues is the greenhouse gas emission which reflects carbon dioxide emissions effect on global climate. In order to better understand this stuff, the study explored the combined effect of increasing railway tra ...
Corynebacterium; Cyanobacteria; Kocuria; Micrococcus; Nocardioides; Proteobacteria; Staphylococcus; air; airborne pathogens; dry season; environmental science; genes; metagenomics; particulates; risk; space and time; species diversity; urbanization; wet season; Mexico
Abstract:
... Bacteria in the air present patterns in space and time produced by different sources and environmental factors. Few studies have focused on the link between airborne pathogenic bacteria in densely populated cities, and the risk to the population’s health. Bacteria associated with particulate matter (PM) were monitored from the air of Mexico City (Mexico). We employed a metagenomic approach to char ...
Japan; environment; pollution; supply chain; sustainable development; value added; Canada; China; Mexico; South Korea
Abstract:
... China provides over 80% of global rare earth (RE) that caused serious domestic environmental impacts. However, how much RE-related pollution was transferred to China along global supply chain remains poorly understood. Here we, for the first time, established the RE industry-specific input-output approaches to trace environmental costs transfer through China's RE exports from whole supply chain pe ...
... In tropical deciduous forests (TDF), the scaling relations between size attributes in columnar cacti vary across species, partially because of environmental pressures to reach the canopy. This study aims to compare the growth-related allometric relationships between Pilosocereus leucocephalus (Poselg.) Byles & G.D. Rowley and Cephalocereus scoparius (Poselg.) Britton & Rose, two conspicuous specie ...
... Tecoma stans (L.) Juss. Ex Kunth is widely used in folk medicine. In ethnomedicine, it is applied as a cardioprotective, hepatoprotective, antiarthritic, antinociceptive, anti-inflammatory, and antimicrobial. The aqueous extract is considered antidiabetic, and is used as a traditional remedy in Mexico. More than 120 chemical constituents have been identified in its leaves, barks, and roots. Howeve ...
... The environmental knowledge of inhabitants residing in a highly biodiverse mountainous region of western Mexico with an important economic forestry sector was investigated. Indices of environmental knowledge, by average and through a factor analysis, were developed and characterized using survey data collected in 2018 and 2021. These indices showed high levels of correlation, and followed similar ...
... We provide a photographic guide and taxonomic diagnosis of Chironomidae larval remains obtained from surface sediments and short cores of 92 waterbodies situated on the Yucatan Peninsula and in Central America, namely Mexico, Belize, Guatemala, El Salvador and Honduras. A total of 101 morphotypes belonging to 64 genera were identified. Chironominae was the most species-rich subfamily represented b ...
case studies; cultural heritage; environment; ethics; indigenous peoples; Mexico
Abstract:
... Indigenous and Western communities are faced with increasing issues of sustainability compromising their natural resources and cultural heritage, for example, a cross-pollination/complementary approach in relation to their current knowledge systems and discourses on sustainability. There is a need for methods that integrate different discourses relating to sustainability to identify the most press ...
computer software; ecosystems; information storage; population growth; rivers; water conservation; watersheds; Mexico
Abstract:
... Water systems modelers have developed multiple, independent, model- and study-area specific tools to store, query, visualize, and share their data. This fragmentation makes difficult comparisons, and synthesis within or across study areas. This paper identifies the common components of four existing tools for data storage, web visualization, and repository, and relates them correctly in syntax and ...
Rallus; freshwater; geographical distribution; habitats; ornithology; phenotype; phylogeny; probability analysis; rivers; standard deviation; temperature; vegetation index; Mexico
Abstract:
... Here, we report new distributional information of the Aztec Rail (Rallus tenuirostris), a Mexican endemic that inhabits freshwater marshes throughout the highlands of central Mexico. We found an unidentified rail population during opportunistic area-search surveys between February and May in 2016 and 2017 along the San Pedro and Conchos rivers in Chihuahua, Mexico. Given the high phenotypic simila ...
animal wastes; biogas; case studies; cattle; electric power; electricity; energy; human development; mathematical models; power generation; quality of life; supply chain; Mexico
Abstract:
... Currently, some regions have low access to electricity services, which prevents the affected population from having an adequate standard of living. The human development index (HDI) is an indicator that measures the degree of progress in a country according to the quality of life for the population and the access to electricity has been related to the increase in HDI. A mathematical optimization m ...
... A sediment record from Lake Chalco, Basin of Mexico, revealed the presence of two endemic ostracod species during the latter part of Marine Isotope Stages (MIS) 6 (146–130 ka) and MIS5 (130–72 ka), namely Candona alchichica and Limnocytherina axalapasco. Higher abundance of C. alchichica was found during MIS6, when prevailing conditions were cold, lake waters were fresh, and relatively deep bottom ...
... We provide an updated checklist of amphibians and reptiles from Isla María Cleofas, Mexico. This island is located at the Islas Marías Archipelago Biosphere Reserve on the coast of the state of Nayarit. The herpetofaunal diversity of Isla María Cleofas has been addressed for over a century; however, the literature is limited just a few scientific explorations and occasional records. In addition, p ...
... Mexico, as many countries, relies on its aquifers to provide at least 60% of all irrigation water to produce crops every year. Often, the water withdrawal goes beyond what the aquifer can be replenished by the little rainfall. Mexico is a country that has experienced a successful process of regional development based on the adoption of intensive agricultural systems. However, this development has ...
biodiversity; biomass; birdwatching; body size; carbon sequestration; citizen science; data collection; ecological competition; ecosystems; filtration; parasitism; protocols; salt marshes; shorelines; topology; uncertainty; waterfowl; California; Mexico
Abstract:
... Biodiversity plays important roles in nature's contributions to people (i.e., ecosystem services), but the critical details of how biodiversity contributes are challenging to determine. Efforts to identify the components of an ecosystem that provide services have improved our understanding of which species, functional groups, population, or habitats directly provide services. However, species do n ...
Ndahita De Dios-Avila; María de Lourdes Ramírez-Ahuja; Claudio Rios-Velasco; Armando Falcón-Brindis; Néstor Isiordia-Aquino; Gabriela Rosario Peña Sandoval; Mario Orlando Estrada-Virgen
... Biological control using native parasitoids is a sustainable alternative to control tephritid flies. We tested whether landscape attributes surrounding guava trees might affect incidence of fruit flies and their parasitoids. From July to September 2019, we collected guava fruit at six locations at Nayarit, México. Pupae obtained from the fruit collected were reared in a laboratory until emergence ...
energy balance; energy conservation; heat; meteorological data; thermal properties; Mexico
Abstract:
... An annual thermal evaluation of a ventilated roof (VR) for energy-saving purposes in two Mexican cities with warm weather is presented. It was developed a numerical code based on the global energy balance method to predict the thermal behavior of the VR. The code was verified, and it showed a good agreement with data reported in the literature. Weather data of the coldest and warmest days of each ...
Alejandro Martínez-Ceja; Antonio Romero-Estrada; María Crystal Columba-Palomares; Israel Hurtado-Díaz; Laura Alvarez; Rubicela Teta-Talixtacta; Mariana Sánchez-Ramos; Francisco Cruz-Sosa; Antonio Bernabé-Antonio
... Randia aculeata (Rubiaceae) is a medicinal plant distributed in the state of Jalisco, Mexico. In folk medicine it is used to counteract the effects produced by the bite of snakes and other poisonous insects. However, there are no reports of new alternatives to use the plant in a sustainable way. The main objective of this study was to establish a cell culture of R. aculeata, evaluate its anti-infl ...
Adrián García‐Rodríguez; M. Delia Basanta; Mirna G. García‐Castillo; Héctor Zumbado‐Ulate; Kelsey Neam; Sean Rovito; Catherine L. Searle; Gabriela Parra‐Olea
Batrachochytrium dendrobatidis; Neotropics; functional diversity; fungi; geographical distribution; infectious diseases; pathogens; phylogeny; risk; salamanders and newts; threatened species; Asia; Costa Rica; Europe; Mexico; Panama
Abstract:
... Emergent infectious disease caused by the fungal pathogens Batrachochytrium dendrobatidis (Bd) and Batrachochytrium salamandrivorans (Bsal) represents one of the major causes of biodiversity loss in amphibians. While Bd has affected amphibians worldwide, Bsal remains restricted to Asia and Europe, but also could be a major threat for salamanders in the Western hemisphere, including the 320 bolitog ...
... In Mexico, Cactaceae plants are widely used in folk medicine for the treatment of diabetes. The genus Opuntia spp. Opuntia matudae Sheinvar prickly pears are known as xoconostle and are used in Mexican cuisine for their acidic flavor. Currently there are few reports of pharmacological properties of this plant, which include antioxidant and antimicrobial activities. This study focuses on the chemic ...
... In Mexico, local ripened cheeses such as Chihuahua, Ranchero, and Cotija are produced, being consumed in great quantities together with imported cheeses. Proteolysis that takes place during ripening generates bioactive peptides; in this way the cheese acquires potential as a functional food. The ripening process of Gouda cheese was studied based on its bromatological and sensorial properties, bioa ...
... Marine fungi are considered as a promising source of pharmacologically important extracts and compounds owing to the new chemical structures that they can synthesize due to the environmental conditions of their habitat. The aim of this work is to evaluate the free radical scavenging capacity of methanolic extracts from marine fungi and their relationship to their total phenolic content. For this, ...
Haematoxylum; diazepam; elevated plus-maze test; heartwood; traditional medicine; tranquilizers; Mexico
Abstract:
... Haematoxylum campechianum L., is a well-known plant in the southeast region of Mexico, where it is named as “palo tinto” or “palo de Campeche”, in English there are vernacular names such as “redwood”, “bloodwood tree” or “campeachy wood”. Traditional medicine refers its use for the treatment of different disorders including depression.Considering the traditional use of this plant for the alleviati ...
Daniel Canton Enriquez; Jose A. Niembro-Ceceña; Martin Muñoz Mandujano; Daniel Alarcon; Jorge Arcadia Guerrero; Ivan Gonzalez Garcia; Agueda Areli Montes Gutierrez; Alfonso Gutierrez-Lopez
... Worldwide, COVID-19 coronavirus disease is spreading rapidly in a second and third wave of infections. In this context of increasing infections, it is critical to know the probability of a specific number of cases being reported. We collated data on new daily confirmed cases of COVID-19 breakouts in: Argentina, Brazil, China, Colombia, France, Germany, India, Indonesia, Iran, Italy, Mexico, Poland ...
... This paper reviews the pertinent literature from 1970 to 2020 and presents a bibliometric analysis of research trends in the application of solid-state fermentation in the bioprocessing of agro-industrial wastes. A total 5630 publications of studies on solid-state fermentation that comprised of 5208 articles (92.50%), 340 book chapters (6.04%), 39 preprints (0.69%), 32 proceedings (0.56%), 8 edite ...
Jennifer Ortiz Letechipia; Julián González-Trinidad; Hugo Enrique Júnez-Ferreira; Carlos Bautista-Capetillo; Cruz Octavio Robles-Rovelo; Ada Rebeca Contreras Rodríguez; Sandra Dávila-Hernández
arsenic; fluorine; food production; groundwater; hydrogeochemistry; remediation; semiarid zones; space and time; water quality; Mexico
Abstract:
... In arid and semiarid regions, groundwater becomes the main source to meet the drinking water needs of large cities, food production, and industrial activities. For this reason, necessary studies must be carried out to estimate its quantity and quality, always seeking sustainable management, thus avoiding social conflicts or a decrease in the productive activities of humanity. This research explain ...
bioprocessing; biotechnology; health services; therapeutics; Argentina; Brazil; Chile; Latin America; Mexico
Abstract:
... Aqueous two‐phase systems (ATPS) have been demonstrated to be a simple and robust worldwide applied bioprocessing technology. From high value microscopic to macroscopic biological molecules obtained from a wide broad of matrices, ATPS have shown a high efficiency capacity for their concentration, enrichment, recovery, and purification. Particularly in Latin America, four relevant countries have pa ...
United States Environmental Protection Agency; arsenic; bioavailability; blood; carcinogenicity; dry environmental conditions; groundwater; health effects assessments; human health; iron oxides; lead; risk; soil separates; streams; wastes; Mexico
Abstract:
... The MD SA-ET in Baja California Sur, Mexico, had over 200 years of intermittent mining activities. Studies in the area have reported Pb, Cd, Zn, and As dispersion from waste to soils, sediments, and groundwater, suggesting that even after all this time, biogeochemical processes have not completely mitigated the risk. Furthermore, evaluating how the fine particles in soils could control the human h ...
... Impact of arsenic (As) contaminated groundwater on human health, through drinking and irrigation practices, is of grave-concern worldwide. This paper present the review of various sources, processes, health effects and treatment technologies available for the removal of As from arsenic contaminated water. Groundwater with high As concentration is detrimental to human health and incidents of As con ...
Laura N. Rodríguez-Cantú; Marco A. Martínez-Cinco; José J. Balderas-Cortés; Iram Mondaca-Fernández; María del Mar Navarro-Farfán; Maria M. Meza-Montenegro
United States Environmental Protection Agency; arsenic; atomic absorption spectrometry; body weight; dermal exposure; environmental assessment; humans; hydrides; risk; Mexico
Abstract:
... Arsenic occurs naturally in ground and spring waters in several geothermal regions in México as a result of natural geochemical processes. Therefore, the goal of this study is to assess the probabilistic health risk in children exposed to arsenic by drinking water from communities located in the geothermal site of Zinapécuaro, Michoacán, México. The water sampling was done monthly for one year and ...
Agave; forest types; governance; indigenous peoples; land cover; land use; land use and land cover maps; traditional technology; tropical dry forests; Mexico
Abstract:
... Artisanal products are considered an alternative to industrial production; however, upon entering global commodity markets, pressures are placed on the territories and customary governance of producer communities. Through the lenses of land system science and telecouplings, this paper examines the links connecting global markets and artisanal products, using the case of mezcal production in an Ind ...
... Drinking water contaminated with As and [Formula: see text] is increasingly prevalent worldwide. Their coexistence can have negative effects due to antagonistic or synergistic mechanisms, ranging from cosmetic problems, such as skin lesions and teeth staining, to more severe abnormalities, such as cancer and neurotoxicity. Available technologies for concurrent removal include electrocoagulation ~ ...
aquifers; basins; climate; ecosystems; evapotranspiration; groundwater extraction; hydrologic models; population growth; rivers; soil water; stream flow; water shortages; Mexico
Abstract:
... The impact of climate uncertainties is already evident in the border communities of the United States and Mexico. This semi-arid to arid border region has faced increased vulnerability to water scarcity, propelled by droughts, warming atmosphere, population growth, ecosystem sensitivity, and institutional asymmetries between the two countries. In this study, we assessed the annual water withdrawal ...
Alex Mayer; Kelly Jones; David Hunt; Robert Manson; Z. Carter Berry; Heidi Asbjornsen; Timothy Max Wright; Jacob Salcone; Sergio Lopez Ramirez; Sophie Ávila-Foucat; Juan Von Thaden Ugalde
... Payments for hydrologic services (PHS) programs focus on protecting upstream forests that provide a range of ecosystem services. The goal of this work is to inform the design of PHS policies by modeling ecosystem services outcomes in watersheds in Veracruz, Mexico. An integrated, spatially explicit model for evaluating the performance of the existing PHS program is developed by combining results o ...
Scaevola taccada; community structure; conservation areas; indigenous species; invasive species; species diversity; vegetation; Caribbean; Mexico
Abstract:
... The Island of Cozumel, located in the Mexican Caribbean, has been granted several protection denominations because of its high biodiversity. However, despite these efforts, several invasive species have been found on the island. Of these, published studies indicate that two plant species are invasive in beach and coastal dune vegetation, but information on their impact on native plant communities ...
Guillermo Andrés Enciso-Maldonado; Héctor Lozoya-Saldaña; María Teresa Colinas-Leon; Jesús Axayacatl Cuevas-Sanchez; Andres Dejesús Sanabria-Velázquez; John Bamberg; K. V. Raman
... Ninety-seven accessions of 14 wild Solanum species were evaluated for late blight resistance under natural infection conditions in the Toluca Valley, México, for two consecutive growing seasons. Significant effects were detected for the interaction of Accession/Year variation in Disease Maximum, sAUDPC (standardized AUDPC), r (rate of disease increase per unit time), and T₅₀ (time to reach 50% of ...
... Artisanal mercury mining (AMM) is an informal economic activity that employs low technology and limited protection, and poses a risk to workers and their families; due to the extraction process, these scenarios involve exposure to complex mixtures of pollutants that synergistically aggravate the health of miners and people living near the site. Although mercury is the predominant pollutant, there ...
European Union; acceptable daily intake; average daily intake; carbaryl; carbofuran; chard; chlorothalonil; chlorpyrifos; cypermethrin; dimethoate; endosulfan sulfate; food composition; food safety; human health; lambda-cyhalothrin; lettuce; methamidophos; monocrotophos; multiresidue analysis; public health; risk; spinach; tomatoes; Chile; Mexico
Abstract:
... Pesticides are contaminants that pose serious risks to human health and the environment worldwide; however, little information is available on the occurrence of pesticide residues in vegetables in either Chile or Mexico. This study evaluated the presence of 22 pesticide residues in vegetables sold at supermarkets and farmers markets in Chile and Mexico and estimated the dietary risk. A total of 10 ...
anthropogenic activities; case studies; fossil fuels; geochemistry; point source pollution; power plants; provenance; shale; soil pollution; topsoil; toxicity; vanadium; villages; Mexico; Sonoran Desert
Abstract:
... Understanding the sources of potentially toxic elements (PTEs) in soils is a worldwide challenge that requires effective discrimination between geogenic and anthropogenic contributions, particularly in areas with certain geological complexity. This study aims to examine the chemical contents of 23 topsoil samples collected from the surroundings of a fossil fuel power plant in the village of Puerto ...
... Blue eye disease (BED) in pigs is caused by Porcine orthorubulavirus (PRV) of the Paramyxoviridae family. It is an endemic disease in swine production in the central region of Mexico and causes nervous signs and high mortality in suckling pigs, pneumonia in growing pigs, orchitis in boars and mummification during gestation. PRV hemagglutinates most red blood cells (RBCs) of domestic species. For s ...
Nia McRae; Chris Gennings; Nadya Rivera Rivera; Marcela Tamayo-Ortiz; Ivan Pantic; Chitra Amarasiriwardena; Lourdes Schnaas; Rosalind Wright; Martha M. Tellez-Rojo; Robert O. Wright; Maria José Rosa
asthma; blood; childhood; children; education; lead; manganese; maternal exposure; obesity; odds ratio; research; second hand smoke; statistical models; surveys; Mexico
Abstract:
... Manganese and lead have been cross-sectionally associated with adverse respiratory outcomes in childhood but there is limited data on their combined effects starting in utero. We examined associations between in utero exposure to metals and childhood respiratory symptoms. We assessed 633 mother-child dyads enrolled in the Programming Research in Obesity, Growth, Environment, and Social Stressors ( ...
... Several governments are considering taxes on non-essential energy-dense, high calorie foods (NEDF) to increase their prices and thereby encourage better diet and health. Alongside a tax on sugary drinks in January 2014, Mexico implemented such a tax: an 8 percent ad-valorem tax on NEDF, defined as those with energy density equal or larger than 275 kcal/100 g. We study the changes in the prices of ...
... An automated methodology (SPE-HPLC-UV) is proposed in this work for the determination of plasticisers in water samples collected at different stages of two wastewater treatment plants (WWTPs). Bisphenol A (BPA) and 4-tert-butylphenol (4tBP) were chosen as model pollutants. The 3³⁻¹ fractional factorial experimental design (FFED) was used to determine more significant variables associated with the ...
... In tropical first‐order streams, the availability of basal resources changes according to tropical seasonality, i.e., dry and rainy seasons, with consequences for the food web structure. However, the seasonal variation in autotrophic and detrital pathways remains unclear. In this study, we aimed to establish whether the dominant pathway of the benthic macroinvertebrate food web in two tropical fir ...
Ixodes scapularis; Rhipicephalus microplus; babesiosis; cattle; cattle industry; euthanasia; fever; hemolytic anemia; jaundice; new species; pathogenesis; quarantine; splenomegaly; theileriosis; ticks; Canada; Mexico; Southeastern United States
Abstract:
... Babesia and Theileria are apicomplexan parasites that cause established and emerging diseases in humans, domestic and wild animals. These protozoans are transmitted by Ixodid ticks causing babesiosis or theileriosis, both characterized by fever, hemolytic anemia, jaundice, and splenomegaly. In North America (NA), the most common species affecting humans is B. microti, which is distributed in the N ...
... Dermacentor hunteri is a tick species that parasitizes bighorn sheep (Ovis canadiensis) and is an important vector of pathogens such as Anaplasma marginale Bartonella, Borrelia, Rickettsia, and Francisella; however, other obligate endosymbionts have been reported in this genus. We aimed to investigate the bacterial microbiome of D. hunteri males and females by next-generation sequencing (NGS) to i ...
Canthon; fauna; migratory behavior; new subgenus; phylogeny; Mexico
Abstract:
... In this study, data are presented for the designation of the new subgenus (Bajacanthon) for Canthon obliquus Horn, 1894 (Deltochilini). The new subgenus Bajacanthon is described based on a multiple evidence approach using morphological and molecular characters. This new subgenus has some unique characters, and is the remnant of an old South American migratory movement into the Mexican Transition Z ...
... The widespread Scolytinae and Platypodinae beetles are capable to colonize a broad range of host plants and several species are considered serious pests in agri-forest environments. In this work, we report the abundance and seasonal variation of scolytine and platypodine beetles associated to a Hass avocado orchard in West-central Mexico. During 2018 and 2019, specimens were captured using bottle ...
air pollution; air quality; decision making; issues and policy; stakeholders; Mexico
Abstract:
... Air pollution is among the most pressing environmental issues worldwide. Unfortunately, an effective reduction in air pollution remains elusive, and so does the incorporation of scientific evidence into air quality policies. This paper takes seven Mexican cities as study cases to document barriers and opportunities to incorporate scientific evidence into air quality policies. Supported by the Grou ...
Alejandro Espinoza-Tenorio; Romana Gabriela Ehuan-Noh; Gabriela Alejandra Cuevas-Gómez; Nemer E. Narchi; Dora Elia Ramos-Muñoz; Francisco J. Fernández-Rivera Melo; Antonio Saldívar-Moreno; José Alberto Zepeda-Domínguez; Juan Carlos Pérez-Jiménez; Alma Oliveto-Andrade; Jorge Torre
... The path to sustainable small-scale fisheries (SSF) is based on multiple learning processes that must transcend generational changes. To understand young leaders from communities with sustainable SSF management practices in Mexico, we used in-depth interviews to identify their shared motivations and perceptions for accepting their fishing heritage. These possible future decision-makers act as agen ...
Russia; United Nations Framework Convention on Climate Change; climate; developed countries; environmental management; governance; greenhouse gases; issues and policy; Brazil; China; Germany; India; Israel; Mexico; South Africa
Abstract:
... While the Global North is historically responsible for the majority of greenhouse gas emissions in the atmosphere, Newly Industrializing Countries (NICs) are expected to overtake developed country emissions in the coming years. At the same time, NICs are climbing the ladder of the global economy, increasing their competitiveness on the global stage and catching up with technological competencies o ...
Gobinath Chandrakasan; Manuel Toledano Ayala; Juan Fernando García Trejo; Gabriel Marcus; Muthuchamy Maruthupandy; C. Chenthis Kanisha; Manavalan Murugan; Fahd A. AL-mekhlafi; Muhammad A. Wadaan
... Bio-pesticides that utilize beneficial microbial agents represent a new option that can potentially reduce reliance on chemical pesticides. To facilitate control of crop pests, this study includes both selection and characterization of Bacillus thuringiensis strains based on Cry gene content and toxicity evaluation. The result is an effective and non-hazardous polyphagous lepidopteran pest control ...
... Potentially toxic metals and metalloids present in mining residues can affect ecosystems, particularly plant growth and development. In this study we evaluated heavy metal (Fe, Zn, Cu, Cd, Pb) and As contents in maize (Zea mays L) plants grown in soils collected near (40 m), at intermediate (400 m) and remote (3000 m) distances from mine tailings near Taxco City, Mexico. Soils sampled near and at ...
... Biocrusts are multifunctional elements in deserts that have been widely studied in Australia, China, and the USA. However, biocrust research in Mexico have also increased in the last two decades. Mexico has deserts (Chihuahuan and Sonoran) and semideserts (Querétaro and Tehuacán) with particular environmental characteristics that likely have different effects on biocrust structure and function. We ...
... In this study, we analyze the food security effects of biofuel production using the synthetic control method. This retrospective and graphical analysis focuses on Indonesia and Mexico from 2000 to 2013. Indonesia is a major biodiesel producer, while Mexico specializes in maize and ethanol. Our findings show that biodiesel production positively affects food security through an increase in daily per ...
... The Macrhybopsis aestivalis complex (nine recognized species of small-bodied, riverine cyprinids) is predicted to have diversified allopatrically in response to prehistoric reorganizations of rivers tributary to the Gulf of México. To flesh out details of this hypothesis, we derived, from previous work, a mitochondrial (ND2) chronogram for interpretation against the background of a published nucle ...
... Free-living nematode distribution, abundance, diversity, and biological traits at Lake Bacalar were evaluated to assess the environmental quality of the water body. Using an Ekman grab, triplicate sediment samples were collected at 15 sampling sites. Nematodes were identified at family and genus levels, while abundance and diversity indices were calculated. Additionally, functional traits were cal ...
... Acerophagus texanus (Howard) (Hymenoptera: Encyrtidae) is a primary endoparasitoid of Ferrisia virgata Cockerell (Hemiptera: Pseudococcidae). The parasitoid was described in 1898. It has been little studied and much of its biology remained unexplored. In the present investigation, several biological aspects of this species, such as the life cycle, fecundity, and longevity were studied under labora ...
Morelia; Usnea; air pollution; bioaccumulation; environmental monitoring; indicator species; lichens; pulp and paper industry; thallus; trace elements; Mexico
Abstract:
... The deposition of trace elements around a pulp and paper industry in Morelia, Mexico, was evaluated using two lichen species as biomonitors. Samples of the foliose lichen Flavopunctelia praesignis and the fruticose lichen Usnea ceratina were collected in two remote areas and transplanted at different distances and directions from the pollution source. Lichen samples were exposed for 4 months (1) a ...
I. Thornhill; M.J. Hill; A. Castro-Castellon; H. Gurung; S. Hobbs; M. Pineda-Vazquez; M.T. Gómez-Osorio; J.S. Hernández-Avilés; P. Novo; A. Mesa-Jurado; R. Calderon-Contreras
... Over 60% of the global population are expected to live in urban areas by 2050. Urban blue spaces are critical for biodiversity, provide a range of ecosystem services, and can promote human health and wellbeing. Despite this, access to blue space is often unequally distributed across socioeconomic gradients, and the availability of quality blue space could extend to environmental justice issues. Th ...
corporate social responsibility; databases; stock exchange; Mexico
Abstract:
... Board interlocks (i.e. individuals that participate in two or more board positions) are a common mechanism to understand the network configuration of firms [2]. This paper presents and describes 2011 network and Corporate Social Responsibility (CSR) data using content analysis from annual reports of 137 listed firms in the Mexican Stock Exchange. [1]. Board interlocks were identified using board m ...
Karina Elisa Rosales-Pérez; Gustavo Axel Elizalde-Velázquez; Leobardo Manuel Gómez-Oliván; José Manuel Orozco-Hernández; Jesús Daniel Cardoso-Vera; Gerardo Heredia-García; Hariz Islas-Flores; Sandra García-Medina; Marcela Galar-Martínez
... Several studies have indicated that hospital effluents can produce genotoxic and mutagenic effects, cytotoxicity, hematological and histological alterations, embryotoxicity, and oxidative stress in diverse water organisms, but research on the neurotoxic effects hospital wastewater materials can generate in fish is still scarce. To fill the above-described knowledge gap, this study aimed to determi ...
... The cotton boll weevil, Anthonomus grandis (Coleoptera: Curculionidae), is the major insect pest of cotton in the Americas. Although the demographic and dispersion patterns of the cotton boll weevil in the USA and Mexico were well characterized, in Brazil the information is scarce and does not include the main cotton‐producing regions of the country. Thus, our objective was to apply a phylogeograp ...