Results 11 to 20 of about 485,382 (284)
Ecology and Evolution, 2022 Reliable abundance estimation is a primary challenge in environmental DNA (eDNA) analysis, which has been addressed by considering the effects of eDNA transport and degradation.
Toshiaki Jo, Hiroki Yamanaka
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Chemical abundances in Seyfert galaxies – X. Sulphur abundance estimates
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT For the first time, the sulphur abundance relative to hydrogen (S/H) in the narrow-line regions of a sample of Seyfert 2 nuclei (Sy 2s) has been derived via direct estimation of the electron temperature. Narrow emission-line intensities from the Sloan Digital Sky Survey (SDSS) Data Release 17 (DR17) [in the wavelength range 3000
Oli L Dors +14 more
openaire +3 more sources
An efficient extension of N-mixture models for multi-species abundance estimation. [PDF]
Methods Ecol Evol, 2018 Gomez JP +3 more
europepmc +2 more sources
A Rapid Assessment of the Marine Megafauna Biodiversity Around South Bali, Indonesia
Frontiers in Marine Science, 2021 A low-cost, small-boat, rapid assessment survey was conducted on the waters off the southern Peninsula of Bali. The objectives were: (1) to conduct an inventory of cetacean species in the study area; (2) to map cetacean distribution to inform the design ...
Putu Liza Kusuma Mustika +8 more
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Modeling of RNA-seq fragment sequence bias reduces systematic errors in transcript abundance estimation. [PDF]
Nat Biotechnol, 2016 Love MI, Hogenesch JB, Irizarry RA.
europepmc +2 more sources
Estimating wolf abundance from cameras [PDF]
Ecosphere, 2022 AbstractMonitoring the abundance of rare carnivores is a daunting task for wildlife biologists. Many carnivore populations persist at relatively low densities, public interest is high, and the need for population estimates is great. Recent advances in trail camera technology provide an unprecedented opportunity for biologists to monitor rare species ...
David E. Ausband +5 more
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Estimation of badger abundance using faecal DNA typing [PDF]
, 2003 1.Wildlife management and conservation programmes often require accurate information on population density, but this can be difficult to obtain, particularly when the species in question is nocturnal or cryptic.
Burke, T. +6 more
core +3 more sources
Estimating bird abundance: making methods work [PDF]
Bird Conservation International, 2008 SummaryIn many bird monitoring surveys, no attempt is made to estimate bird densities or abundance. Instead, counts of one form or another are made, and these are assumed to correlate with bird density. Unless complete counts on sample plots are feasible, this approach can easily lead to false conclusions, because detectability of birds varies by ...
Buckland, Stephen T. +2 more
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Estimating ungulate abundance while accounting for multiple sources of observation error
Wildlife Society Bulletin, 2016 Whether a species is rare or overabundant, accurate estimates of population abundance are essential for the development and assessment of conservation plans and management goals.
Pat A. Terletzky, David N. Koons
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Optimal segmentation and improved abundance estimation for superpixel-based Hyperspectral Unmixing
European Journal of Remote Sensing, 2022 Superpixel-based hyperspectral unmixing (HU) can effectively reduce spectral variability’s influence on unmixing performance. In the superpixel-based HU method, this study proposes a segmentation scale determination method to improve the accuracy of ...
Qiang Guan +4 more
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