Results 31 to 40 of about 485,382 (284)

Assessing the efficacy and cost‐effectiveness of integrating autonomous recording units and point‐count surveys for population monitoring of northern bobwhite (Colinus virginianus)

open access: yesEcological Solutions and Evidence
Autonomous recording units (ARUs) have emerged as a useful tool for monitoring a wide range of acoustically signalling wildlife species in a cost‐effective manner, but estimating abundance from acoustic data can be challenging.
William B. Lewis   +2 more
doaj   +1 more source

Daily pattern of flight activity of Aedes albifasciatus in Central Argentina

open access: yesMemorias do Instituto Oswaldo Cruz, 1995
Aedes albifasciatus is an important common mosquito in Central Argentina. Its a confirmed vector of the Western Equine Encephalitis and is responsible for loss of milk production in dairy cattle during peak populations.
Francisco F. Ludueña Almeida   +1 more
doaj   +1 more source

Robustness of close‐kin mark–recapture estimators to dispersal limitation and spatially varying sampling probabilities

open access: yesEcology and Evolution, 2020
Close‐kin mark–recapture (CKMR) is a method for estimating abundance and vital rates from kinship relationships observed in genetic samples. CKMR inference only requires animals to be sampled once (e.g., lethally), potentially widening the scope of ...
Paul B. Conn   +3 more
doaj   +1 more source

Inoculum selection influences the biochemical methane potential of agro-industrial substrates [PDF]

open access: yes, 2015
Obtaining a reliable estimation of the methane potential of organic waste streams in anaerobic digestion, for which a biochemical methane potential (BMP) test is often used, is of high importance.
Angenent, Largus T   +7 more
core   +2 more sources

Bracken: estimating species abundance in metagenomics data

open access: yesPeerJ Computer Science, 2016
Metagenomic experiments attempt to characterize microbial communities using high-throughput DNA sequencing. Identification of the microorganisms in a sample provides information about the genetic profile, population structure, and role of microorganisms within an environment.
Lu, Jennifer   +3 more
openaire   +3 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Alternative sampling and estimation methods for multispecies trawl surveys [PDF]

open access: yes, 2004
Thesis (Ph.D.) University of Alaska Fairbanks, 2004Multispecies demersal trawl surveys are used in the United States and internationally to estimate the relative abundance of commercial and non-commercial fish species.
Dressel, Sherri Christine
core  

Global coverage of cetacean line-transect surveys : status quo, data gaps and future challenges [PDF]

open access: yes, 2012
Knowledge of abundance, trends and distribution of cetacean populations is needed to inform marine conservation efforts, ecosystem models and spatial planning.
Harris, Catriona M   +4 more
core   +3 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Beyond Pixel-Wise Unmixing: Spatial–Spectral Attention Fully Convolutional Networks for Abundance Estimation

open access: yesRemote Sensing, 2023
Spectral unmixing poses a significant challenge within hyperspectral image processing, traditionally addressed by supervised convolutional neural network (CNN)-based approaches employing patch-to-pixel (pixel-wise) methods.
Jiaxiang Huang, Puzhao Zhang
doaj   +1 more source

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