A5055714380- Marine and coastal ecosystems
- Aquatic Ecosystems and Phytoplankton Dynamics
- Microbial Community Ecology and Physiology
- Geology and Paleoclimatology Research
- Biocrusts and Microbial Ecology
- Ocean Acidification Effects and Responses
- Marine Biology and Ecology Research
- Genomics and Phylogenetic Studies
- Water Resource Management and Quality
- Environmental DNA in Biodiversity Studies
- Insect and Arachnid Ecology and Behavior
- Migration and Labor Dynamics
- Water Quality Monitoring and Analysis
- Marine Bivalve and Aquaculture Studies
- Water Quality Monitoring Technologies
- Science, Technology, and Education in Latin America
- Isotope Analysis in Ecology
- Marine Toxins and Detection Methods
- Aquatic Ecosystems and Biodiversity
- Groundwater and Isotope Geochemistry
- Plant and animal studies
- Insect and Pesticide Research
- Environmental and Cultural Studies in Latin America and Beyond
- Migration, Ethnicity, and Economy
Universidad del Valle de Guatemala
2020-2023
Organization for Women in Science for the Developing World
2022
Technische Universität Berlin
2014-2015
Linnaeus University
2012
Despite the paramount importance of bacteria for biogeochemical cycling carbon and nutrients, little is known about potential effects climate change on these key organisms. The consequences projected bacterioplankton community dynamics were investigated in a Baltic Sea spring phytoplankton bloom mesocosm experiment by increasing temperature with 3°C decreasing pH approximately 0.4 units via CO₂ addition factorial design. Temperature was major driver differences composition during experiment,...
In this study we evaluated the applicability of a space-borne hyperspectral sensor, Hyperion, to resolve for chlorophyll (Chl a) concentration in Lake Atitlan, tropical mountain lake Guatemala. situ water quality samples Chl were collected and correlated with surface reflectance derived from Hyperion images, develop semi-empirical algorithm. Existing operational algorithms tested continuous bands an iterative manner. A third order polynomial regression provided good fit model a. The final...
Significance Harmful algal blooms (HABs) are dense populations of algae and/or cyanobacteria that can harm aquatic ecosystems by reducing water column oxygen and producing toxins. Whereas HABs well documented in modern lakes, there has been little research on associated with ancient societies. We inferred the magnitude past using a sediment core from Lake Amatitlán, Guatemala, which hosted large, prehistoric Maya its watershed currently experiences toxic HABs. About 1,000 y ago, area...
Metagenomic and traditional paleolimnological approaches are suitable to infer past biological environmental changes, however, they often applied independently, especially in tropical regions. We combined both investigate Holocene Prokaryote Eukaryote diversity microbial metabolic pathways ancient Lake Chalco, Mexico. Here, we report on among a large number of lineages (36,722 OTUs) functional (27,636,243 non-clustered predicted proteins, 6,144 annotated protein-family genes). The most...
The conception of “floral strips” is a strategy to provide more and different food sources for pollinators. impact “homogeneous” Phacelia tanacetifolia (“Phacelia”) “heterogeneous” (flower mix) on the enzyme activity bumblebees (Bombus terrestris) honeybees (Apis mellifera) under urban conditions has not been reported. Organisms responding challenging environmental are known exhibit increases in oxidative stress parameters which turn affect both physiological metabolic parameters. A field...
The underdevelopment of the higher education system in Guatemala and fragility its science technology (S&T) contexts have compelled a significant number talented Guatemalan scientists to be trained, educated, employed abroad. relocation such skilled human power different countries regions has resulted growing Scientific Diaspora (GSD). Until recently, emigration from Global South scientifically advanced North was studied as it negatively impacted origin. However, technological upgrades...
La deposición de nutrientes por vía atmosférica tiene graves impactos sobre la ecología bosques y cuerpos agua templados. Sin embargo, su importancia en neotropicales casi no ha sido estudiada. En este artículo se cuantifica contribución nitrógeno inorgánico disuelto (NID, [NO3--N + NH4+-N]) fósforo soluble (FIS, [PO4-3-P]) depositados bulto superficies húmedas hacia el lago Atitlán (Guatemala). Las cargas estimadas NID FIS consecuencia directa (depositada superficie del lago) fueron 151.2...
<p>For decades, paleoecological studies in lake sediments have focused on reconstructing the environments of past and explaining phenomena linked to climatic variations. Recent advances high-throughput DNA sequencing allowed access environmental (eDNA) ancient sedimentary (sedaDNA) as a new efficient proxy for present biodiversity. The basin Mexico (BM) is located central part Trans-Mexican Volcanic Belt at 2,200 m a.s.l.; with southern portion harboring Chalco sub-basin. Lake...