Results 51 to 60 of about 485,382 (284)

Estimating the abundance of clustered and cryptic marine macro-invertebrates in the Galápagos with particular reference to sea cucumbers [PDF]

, 2003
Estimating the abundance of marine macro-invertebrates is complicated by a variety of factors: 1) human factors, such as diver efficiency and diver error; and 2) biological factors, such as aggregation of organisms, crypsis, and nocturnal emergence ...
Edgar, G.J., Shepherd, Scoresby. A., Toral-Granda, Veronica   +2 more
core  

Using genotype abundance to improve phylogenetic inference

, 2018
Modern biological techniques enable very dense genetic sampling of unfolding evolutionary histories, and thus frequently sample some genotypes multiple times.
DeWitt III, William S., Matsen IV, Frederick A., Mesin, Luka, Minin, Vladimir N., Victora, Gabriel D.   +4 more
core   +1 more source

Computational aspects of N-mixture models [PDF]

, 2014
The N-mixture model is widely used to estimate the abundance of a population in the presence of unknown detection probability from only a set of counts subject to spatial and temporal replication (Royle, 2004, Biometrics 60,105–115).
, Cormack, Couturier, Dail, Dodd, Dorazio, Fiske, Graves, Guillera-Arroita, Guillera-Arroita, Guillera-Arroita, Hilbe, Hines, Holgate, Hunt, Johnson, Jost, Karlis, Kéry, Kéry, Kéry, Martin, McIntyre, Royle, Royle, Royle, Sontag, Toribio, Wang, Zellweger-Fischer   +29 more
core   +1 more source

FIRST ESTIMATES OF VAQUITA ABUNDANCE

Marine Mammal Science, 1997
AbstractThe abundance of the only population of vaquitas, Gulf of California harbor porpoise (Phocoena sinus), is estimated from four surveys conducted in Mexico between 1986 and 1993, using a variety of methods. A line‐transect approach was applied, using some parameters estimated from a related species, the harbor porpoise (Phocoena phocoena ...
Barlow, Jay, Gerrodette, Tim, Silber, Greg   +2 more
openaire   +2 more sources

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Abundance Estimation Using Minimum Order Set Distances in Line Transect Sampling

Stats
Line transect sampling is widely used for estimating population abundance, but existing nonparametric estimators of detection density at the transect line often suffer from boundary bias and tuning sensitivity. In this paper, we propose two simple tuning-
Mohammad Ali Al Kadiri, Mariam H. Al-Husari   +1 more
doaj   +1 more source

Optimizing insect metabarcoding using replicated mock communities

Methods in Ecology and Evolution, 2023
Metabarcoding (high‐throughput sequencing of marker gene amplicons) has emerged as a promising and cost‐effective method for characterizing insect community samples.
Elzbieta Iwaszkiewicz‐Eggebrecht, Emma Granqvist, Mateusz Buczek, Monika Prus, Jan Kudlicka, Tomas Roslin, Ayco J. M. Tack, Anders F. Andersson, Andreia Miraldo, Fredrik Ronquist, Piotr Łukasik   +10 more
doaj   +1 more source

Implementation strategies for hyperspectral unmixing using Bayesian source separation [PDF]

, 2010
Bayesian Positive Source Separation (BPSS) is a useful unsupervised approach for hyperspectral data unmixing, where numerical non-negativity of spectra and abundances has to be ensured, such in remote sensing.
Dobigeon, Nicolas, Guiheneuf, Mael, Moussaoui, Said, Schmidt, Albrecht, Schmidt, Frederic, Treguier, Erwan   +5 more
core   +6 more sources

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon, Peter T. Gallagher, Orly I. Richter, Neermala Poudel Neupane, Amy C. Mandigo, Jennifer J. McCann, Emanuela Dylgjeri, Irina Vasilevskaya, Christopher McNair, Channing J. Paller, Wm. Kevin Kelly, Karen E. Knudsen, Matthew J. Schiewer, Ayesha A. Shafi   +13 more
wiley   +1 more source

Learning to fly: integrating spatial ecology with unmanned aerial vehicle surveys

Ecosphere, 2018
Despite the increasing importance of new survey tools such as unmanned aerial vehicles (UAVs), the implications of how their spatial deployment may interact with species detection errors have not yet been assessed.
Peter W. J. Baxter, Grant Hamilton
doaj   +1 more source