Results 21 to 30 of about 180 (135)
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 +6 more
wiley +1 more source
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 +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 +2 more
wiley +1 more source
Alkaline phosphatases in microbialites and bacterioplankton from Alchichica soda lake, Mexico [PDF]
FEMS Microbiology Ecology, 2014 Dissolved organic phosphorus utilization by different members of natural communities has been closely linked to microbial alkaline phosphatases whose affiliation and diversity is largely unknown. Here we assessed genetic diversity of bacterial alkaline phosphatases phoX and phoD, using highly diverse microbial consortia (microbialites and ...
Patricia M, Valdespino-Castillo +5 more
openaire +2 more sources
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 +3 more
wiley +1 more source
20 Years of Global Change on the Limnology and Plankton of a Tropical, High-Altitude Lake
Diversity, 2022 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.
Javier Alcocer +7 more
doaj +1 more source
Hydrochemistry and microbialites of the alkaline crater lake Alchichica, Mexico [PDF]
Facies, 2011 The structure, mineralogy, and accretion processes of the modern and subfossil cyanobacterial microbialites from the alkaline crater lake Alchichica (Puebla, Mexico) were studied, along the lake’s bathymetry and hydrochemistry. The recent lowering of the lake level had exposed microbialitic carbonate mounds and crusts, which emerged up to 2 m above the
Kaźmierczak, Józef +5 more
openaire +1 more source
Deposition, burial and sequestration of carbon in an oligotrophic, tropical lake
Journal of Limnology, 2014 The amount of biogenic carbon that may be deposited, buried and eventually preserved (sequestered) in the sediments of a tropical, oligotrophic lake, was evaluated based on i) the temporal variation of the particulate organic carbon (POC) concentration ...
Javier Alcocer +5 more
doaj +1 more source
Journal of Limnology, 2014 The deep benthic communities of tropical lakes are poorly understood with respect to their composition, abundance, biomass and regulatory factors. Whereas the hypolimnia of temperate oligotrophic lakes remain oxygenated, the higher temperatures in ...
María del Carmen Hernández +3 more
doaj +1 more source