Results 131 to 140 of about 146,591 (359)

Spatiotemporal variability in global lakes turbidity derived from satellite imageries

open access: yesEnvironmental Research Communications
Turbidity is a key indicator of water quality and has significant impacts on underwater light availability of lakes. But the spatiotemporal variability of turbidity, which is important for understanding comprehensive changes in the water quality and ...
Defeng Wu   +3 more
doaj   +1 more source

Data-base of dissolved organic matter composition and reactivity in Lake Victoria, the World's largest tropical lake

open access: green, 2020
Loris Deirmendjian   +6 more
openalex   +1 more source

On the compatibility of single‐scan terrestrial LiDAR with digital photogrammetry and field inventory metrics of vegetation structure in forest and agroforestry landscapes

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu   +7 more
wiley   +1 more source

Variability of Zooplankton in Two Neighboring Tropical High-Mountain Lakes

open access: yesDiversity
High-mountain lakes (HMLs) El Sol and La Luna are located 600 m apart in the crater of the Nevado de Toluca volcano, yet they display distinct differences in their morphometry and limnology.
Javier Alcocer   +2 more
doaj   +1 more source

Investigations on the ecology and production-biology of the "floating meadows" (Paspalo-Echinochloetum) on the Middle Amazon. Part 1: The floating vegetation and its ecology

open access: yes, 1970
Investigations on the "floating meadows" (Paspalo-Echinochloetum) of the vârzea- region of central Amazonia in the surroundings of Manaus were made from May 1967 until October 1968.
Junk, W.
core  

Comparative Trends of Sociality Among Terrestrial Carnivores: A Multivariate Analysis 陆生食肉动物社会性的比较趋势:一项多变量分析

open access: yesWildlife Letters, EarlyView.
In this study we analyze the role of phylogeny, environment, and community structure on sociality. Using structural equation modeling (SEM) we aim to quantify the direct and indirect impacts of variables on behaviors including social grouping, reproduction, and space use among Carnivora species.
Jessica Ward   +3 more
wiley   +1 more source

The diversity and ecological role of protozoa in fresh waters [PDF]

open access: yes, 1997
Protozoa feed on and regulate the abundance of most types of aquatic microorganisms, and they are an integral part of all aquatic microbial food webs. Being so small, aerobic protozoa thrive at low oxygen tensions, where they feed (largely unaffected by ...
Finlay, B.J.
core  

The Savage Worlds of Henry Drummond (1851–1897): Science, Racism and Religion in the Work of a Popular Evolutionist

open access: yesJournal of Religious History, EarlyView.
Abstract The savage was a familiar as well as deeply problematic figure in late‐Victorian literary and scientific imaginaries. Savages provided an unstable but capacious and flexible signifier to explore human development and human difference, most often in ways that followed a disturbing racial logic.
Diarmid A. Finnegan
wiley   +1 more source

Was Einhard a widower?

open access: yesGender &History, EarlyView.
Abstract The ‘widow’ is a gendered, socially contingent category. Women who experienced spousal bereavement in the early middle ages faced various socio‐economic and legal ramifications; the ‘widow’ was further a rhetorical figure with a defined emotional register. The widower is, by contrast, an anachronistic category.
Ingrid Rembold
wiley   +1 more source

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