Results 31 to 40 of about 252 (128)

Using Wavelet Analysis to Examine Long-Term Variability of Phytoplankton Biomass in the Tropical, Saline Lake Alchichica, Mexico

Water, 2022
The phytoplankton biomass (chlorophyll-a, Chl-a) is directly related to the total production of lakes. Chl-a in temperate lakes oscillates on an annual scale.
Miroslav Macek, Javier Alcocer, Benjamín Quiroz-Martínez, Martín Merino-Ibarra, Luis A. Oseguera   +4 more
core   +2 more sources

16S rDNA-based analysis reveals cosmopolitan occurrence but limited diversity of two cyanobacterial lineages with contrasted patterns of intracellular carbonate mineralization. [PDF]

Front Microbiol, 2014
Cyanobacteria are mainly thought to induce carbonate precipitation extracellularly via their photosynthetic activity combined with the nucleation potential of exopolymeric substances. The discovery in microbialites of the alkaline lake Alchichica (Mexico)
Ragon M, Benzerara K, Moreira D, Tavera R, López-García P.   +4 more
europepmc   +2 more sources

Specific carbonate-microbe interactions in the modern microbialites of Lake Alchichica (Mexico). [PDF]

ISME J, 2013
Abstract The role of microorganisms in microbialite formation remains unresolved: do they induce mineral precipitation (microbes first) or do they colonize and/or entrap abiotic mineral precipitates (minerals first)? Does this role vary from one species to another? And what is the impact of mineral precipitation on microbial ecology?
Gérard E, Ménez B, Couradeau E, Moreira D, Benzerara K, Tavera R, López-García P.   +6 more
europepmc   +4 more sources

Short-term climatic change in lake sediments from lake Alchichica, Oriental, Mexico

Geofísica Internacional, 2003
En el centro de México el fenómeno de El Niño provoca una reducción en la precipitación. Estas variaciones interanuales en el clima pueden modificar el comportamiento de mezcla-estratificación de los lagos, reflejándose a veces en los sedimentos que se ...
Diana Juárez, Alejandro Rodríguez, Margarita Caballero, Gloria Vilaclara   +3 more
core   +5 more sources

Late Holocene hydroclimate variability and human–environment interactions in the Cuenca Oriental, Mexico: multiproxy evidence from Lake Alchichica

Quaternary Science Reviews
The Cuenca Oriental, a semi-arid region in east-central Mexico, has long supported complex societies, yet its hydroclimatic variability and human–environment interactions—particularly during the Classic, Postclassic, and Colonial periods—remain poorly ...
Schefuß, Enno, Fagel, Nathalie, Mohtadi, Mahyar, Francus, Pierre, Tylmann, Wojciech, Metcalfe, Sarah, Israde-Alcántara, Isabel, Mattielli, Nadine, Rantala, Marttiina, Domínguez-Vázquez, Gabriela, Safaierad, Reza   +10 more
core   +3 more sources

Geomicrobiology of the Rincon de Parangueo maar crater: Exploring the link between an evolving extreme environment and its potential metabolic diversity

Freshwater Biology, Volume 68, Issue 11, Page 1818-1838, November 2023., 2023
Abstract Rincon de Parangueo (RP) is a Quaternary maar crater located in the Michoacan‐Guanajuato Volcanic Field in central Mexico. Like other volcanic craters in the region, the central part was occupied by an endorheic lacustrine system. As a consequence of extensive groundwater extraction, the perennial lake started a gradual desiccation process and
Janet Sánchez‐Sánchez, Mariano Cerca, Bárbara B. Moguel, Israel Muñoz‐Velasco, Rocío J. Alcántara‐Hernández, Dora Carreón‐Freyre, Gilles Levresse   +6 more
wiley   +1 more source

Response of diatom assemblages to orbital‐ and millennial‐scale climatic variability since the penultimate glacial maximum in the northern limit of the Neotropics

Journal of Quaternary Science, Volume 38, Issue 5, Page 750-766, July 2023., 2023
ABSTRACT Lake Chalco, in Central Mexico, has a long diatom record which provides an excellent opportunity to document the biotic and hydrological responses of this ecosystem to orbital‐ and millennial‐scale climatic variability during the last 150 ka. Detrended correspondence analysis was used to evaluate the ecological turnover and to identify diatom ...
Diana Avendaño, Margarita Caballero, Beatriz Ortega‐Guerrero, Socorro Lozano‐García   +3 more
wiley   +1 more source

Nitrogen is unlikely to consistently limit primary productivity in most tropical lakes

Ecosphere, Volume 14, Issue 3, March 2023., 2023
Abstract Despite mounting evidence that tropical lakes may experience an array of phytoplankton nutrient limitation regimes, references to low‐latitude lakes being predominantly nitrogen limited remain common in the literature. To assess the current understanding of nutrient limitation regimes in tropical lakes, we performed a literature review with ...
Jemma M. Fadum, Ed K. Hall
wiley   +1 more source

Diversity and distribution of lacustrine diatoms along the Trans‐Mexican Volcanic Belt

Freshwater Biology, Volume 68, Issue 3, Page 391-405, March 2023., 2023
Abstract The Trans‐Mexican Volcanic Belt is recognised as a highly biodiverse zone and we present a study of diatom diversity and species distributions in its lakes. We aimed to identify diatom taxa with the highest regional occupancy, explore diversity at a regional level, identify the main variables associated with species distributions, and present ...
Avendaño Diana, Caballero Margarita, Vázquez Gabriela   +2 more
wiley   +1 more source

Late Pleistocene and Holocene palaeoecological reconstruction of Lake Texcoco (Basin of Mexico) based on its ostracod record

Journal of Quaternary Science, Volume 37, Issue 7, Page 1270-1279, October 2022., 2022
Abstract We present a palaeohydrological reconstruction of Lake Texcoco over the last 32.7 cal ka based on ostracod records consisting of two species, Candona patzcuaro and Limnocytherina axalapasco. Overall, the presence of these species suggests that Lake Texcoco was highly saline and experienced occasional desiccation periods.
C.M. Chávez‐Lara, S. Lozano‐García, B. Ortega‐Guerrero, M. Caballero‐Miranda   +3 more
wiley   +1 more source