Results 131 to 140 of about 1,324,789 (341)
, 2003 Higher variability in rainfall and river discharge could be of major importance in landslide generation in the north-western Argentine Andes. Annual layered (varved) deposits of a landslide dammed lake in the Santa Maria Basin (26 deg S, 66 deg W) with ...
Kurths, J. +3 more
core +1 more source
Archaeometry, EarlyView.Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather +11 more
wiley +1 more source
Trophic state in a tropical lake based on Chlorophyll-a profiler data and Sentinel-2 images: The onset of an algal bloom event. [PDF]
Water Environ Res, 2021 Pantoja DA +2 more
europepmc +1 more source
East African Fisheries Research Organization Annual Report 1952 [PDF]
, 1952 Several important advances have been made in our knowledge both regarding the factors which determine fertility in tropical lakes and the fish that live in them.
core
Heterotrophic activity and bacterial growth in a tropical lake (Lake Xolotlán, Managua, Nicaragua)
SIL Proceedings, 1922-2010, 1991 [3H]–thymidine incorporation was consistently high in the 4 monthly sampling dates of the rainy season averaging 91 pmol · l−1 · h−1 at station 1 and 65 pmol · l−1 · h−1 at station 7.
Vammen, Katherine +3 more
openaire +2 more sources
Investigating relationships among strontium, barium, and seasonality in wild baboons
Archaeometry, EarlyView.Abstract Geochemical profiles of Australopithecus africanus and baboon teeth show fluctuating trace elements, possibly reflecting seasonal diets. Here we use laser ablation–inductively coupled plasma–mass spectrometric measurements of calcium‐normalized strontium and barium ratios (Sr/Ca and Ba/Ca) and ion microprobe analyses of oxygen isotopes (δ18O ...
Maya Bharatiya +12 more
wiley +1 more source
Archaeometry, EarlyView.ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay +3 more
wiley +1 more source
Effects of El Niño on the dynamics of Lake Alchichica, central Mexico [PDF]
Geofísica Internacional, 2003 Lake Alchichica is a deep, warm-monomictic lake in Puebla State, central Mexico. Water temperature, dissolved oxygen and chlorophyll a annual concentration patterns are compared under ENSO and non-ENSO conditions.
Alfonso Lugo, Javier Alcocer
doaj
Using eDNA to biomonitor the fish community in a tropical oligotrophic lake
bioRxiv, 2018 Environmental DNA (eDNA) is an effective approach for detecting vertebrates and plants, especially in aquatic ecosystems, but prior studies have largely examined eDNA in cool temperate settings.
Martha Valdez-Moreno +5 more
semanticscholar +1 more source
Archaeometry, EarlyView.ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant +6 more
wiley +1 more source