Results 11 to 20 of about 1,013 (149)

Seaweed Invasion! Temporal Changes in Beach Conditions Lead to Increasing Cenote Usage and Contamination in the Riviera Maya

Sustainability, 2020
Since 2011, tourism to Mexico’s Yucatán Peninsula has been heavily impacted by large masses of sargassum seaweed washing up on the beaches, with the largest seaweed event occurring in 2019.
Casas-Beltran Diego Armando, Melissa E Lenczewski, Karelys Febles-Moreno   +2 more
exaly   +2 more sources

Insights into diversity, host-range, and temporal stability of Bacteroides and Phocaeicola prophages [PDF]

BMC Microbiology
Background Phages are critical components of the gut microbiome, influencing bacterial composition and function as predators, parasites, and modulators of bacterial phenotypes.
Nejc Stopnisek, Stina Hedžet, Tomaž Accetto, Maja Rupnik   +3 more
doaj   +2 more sources

Northeast Yucatan hurricane activity during the Maya Classic and Postclassic periods [PDF]

Scientific Reports, 2022
The collapse of the Maya civilization in the late 1st/early 2nd millennium CE has been attributed to multiple internal and external causes including overpopulation, increased warfare, and environmental deterioration.
Richard M. Sullivan, Peter J. van Hengstum, Jeffrey P. Donnelly, Anne E. Tamalavage, Tyler S. Winkler, Shawna N. Little, Luis Mejia-Ortiz, Eduard G. Reinhardt, Sam Meacham, Courtney Schumacher, Robert Korty   +10 more
doaj   +2 more sources

Isotope systematics of subfossil, historical, and modern Nautilus macromphalus from New Caledonia. [PDF]

PLoS ONE, 2022
Cephalopod carbonate geochemistry underpins studies ranging from Phanerozoic, global-scale change to outcrop-scale paleoecological reconstructions.
Benjamin J Linzmeier, Andrew D Jacobson, Bradley B Sageman, Matthew T Hurtgen, Meagan E Ankney, Andrew L Masterson, Neil H Landman   +6 more
doaj   +3 more sources

El dragado del cenote sagrado de Chichen Itzá 1904-c.1914

Historia Mexicana El Colegio de México, 2017
Este artículo acompaña el proceso de “rescate” de un tesoro de valor incalculable, retirado del fondo del Cenote Sagrado de Chichen Itzá, con ayuda de una primitiva draga instalada en sus orillas por el entonces cónsul de los Estados Unidos de América ...
Guillermo Palacios
doaj   +2 more sources

New discovery of the freshwater sponge Ephydatia fluviatilis (Linnaeus, 1759) in cenote ecosystems of Yucatan, Mexico: Morphological and molecular insights [PDF]

Subterranean Biology
For over five decades, the biodiversity of freshwater sponges from Yucatan cenotes has remained largely unexplored. Scientific documentation is limited to studies from 1936 and 1968, which highlights a significant knowledge gap.
Pablo Alberto Hernández-Solis, Víctor Eduardo Gómez-Bretón, Dalia Angélica de la Cruz-Fernández, Nuno Simões   +3 more
doaj   +4 more sources

Trophic ecology in an anchialine cave: A stable isotope study. [PDF]

PLoS ONE
The analysis of carbon and nitrogen stable isotopes (δ13C and δ15N) has been widely used in ecology since it allows to identify the circulation of energy in a trophic network. The anchialine ecosystem is one of the less explored aquatic ecosystems in the
Brenda Durán, Fernando Álvarez
doaj   +2 more sources

Faunistic survey of the zooplankton community in an oligotrophic sinkhole, Cenote Azul (Quintana Roo, Mexico), using different sampling methods, and documented with DNA barcodes

Journal of Limnology, 2018
This study is the first faunistic inventory of a zooplankton community from an open, karstic and oligotrophic aquatic sinkhole in the south of the Yucatan Peninsula (Mexico), we describe the richness of the zooplankton collected with the combination of ...
Lucia Montes-Ortiz, Manuel Elias-Gutierrez   +1 more
doaj   +2 more sources

Late Pleistocene to Holocene sedimentation in the Great Blue Hole (Lighthouse Reef, Belize): Results from a 30 m long core

The Depositional Record
The Great Blue Hole is a prominent flooded karst sinkhole, located in the lagoon of Lighthouse Reef atoll off the coast of Belize. Short cores recovered from varved bottom sediments have been used in previous studies as climate and cyclone archives ...
Eberhard Gischler, Dominik Schmitt, Annika Wiegand, Hermann Behling, Lyudmila Shumilovskikh, Martin Melles, Volker Wennrich, Elija Nolte, Jozef Grego, Flavio S. Anselmetti, Hendrik Vogel, Daniel Birgel, Jörn Peckmann   +12 more
doaj   +2 more sources

Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Application of clumped isotope palaeothermometry to speleothems (carbonate cave deposits, e.g., stalagmites and flowstones) has been restricted largely to subaqueous samples because of kinetic fractionation processes that occur during subaerial speleothem formation, which lead to erroneously high inferred temperatures.
Umbo S, Box M, Intveld A, Longman J, Modestou S, Carolin SA, James DH, Martínez-García A, Lope CP, Brenner M, Hodell D, Breitenbach SFM.   +11 more
europepmc   +2 more sources