Results 71 to 80 of about 15,094 (230)

Monte Carlo simulation with fixed steplength for diffusion processes in nonhomogeneous media [PDF]

open access: yes, 2013
Monte Carlo simulation is one of the most important tools in the study of diffusion processes. For constant diffusion coefficients, an appropriate Gaussian distribution of particle's steplengths can generate exact results, when compared with integration ...
Hoyuelos, Miguel Luis   +2 more
core   +1 more source

Noncanonical Nucleotides in the Genome Around the Maternal‐Zygotic Transition

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In this paper, Kazzazi et al. provide a comprehensive review of the dynamics of nonconventional nucleotides in the genome during early developmental stages, hypothesizing a potential role for these nucleotides in the activation of the zygotic genome. ABSTRACT From the very moment of fertilization and throughout development, the cells of animal embryos ...
Latifa Kazzazy   +7 more
wiley   +1 more source

Personality, density and habitat drive the dispersal of invasive crayfish

open access: yesScientific Reports, 2022
There is increasing evidence that personality traits may drive dispersal patterns of animals, including invasive species. We investigated, using the widespread signal crayfish Pacifastacus leniusculus as a model invasive species, whether effects of ...
Shams M. Galib   +3 more
doaj   +1 more source

Sensitivity of Pagurus bernhardus (L.) to substrate-borne vibration and anthropogenic noise [PDF]

open access: yes, 2015
© 2015 Elsevier B.V. Despite the prevalence of vibration produced by anthropogenic activities impacting the seabed there are few data and little information as to whether these are detected by crustaceans and whether they interfere with their behaviour ...
Breithaupt, Thomas   +3 more
core   +1 more source

Identifying knowledge gaps about context dependency in freshwater species invasions

open access: yesOikos, EarlyView.
The abiotic template of freshwater ecosystems is being altered by human activity on a global scale, often promoting the establishment of new invasive taxa and increasing the likelihood of facilitation between invaders. These positive interactions represent a substantive threat to freshwater ecosystems by promoting the establishment and persistence of ...
Samuel F. Fritz   +10 more
wiley   +1 more source

Transient Information Flow in a Network of Excitatory and Inhibitory Model Neurons: Role of Noise and Signal Autocorrelation [PDF]

open access: yes, 2004
We investigate the performance of sparsely-connected networks of integrate-and-fire neurons for ultra-short term information processing. We exploit the fact that the population activity of networks with balanced excitation and inhibition can switch from ...
Gerstner, Wulfram, Mayor, Julien
core   +3 more sources

DISCRIMINATION OF CONSPECIFIC MALE MOLT ODOR SIGNALS BY MALE CRAYFISH, ORCONECTES RUSTICUS [PDF]

open access: yesJournal of Crustacean Biology, 2003
For many organisms, chemoreception plays a key role in numerous aspects of daily life. Crayfish use chemical signals to find mates, warn conspecifics of predators, and relay social status. While many of these situations have been studied in detail, behavior of conspecifics toward chemical signals from molted individuals has not been thoroughly examined.
Julie A. Adams, Paul A. Moore
openaire   +1 more source

Developing ocean literacy through a relational model: Exploring outcomes of a place‐based ocean education programme in primary schools

open access: yesPeople and Nature, EarlyView.
Abstract Schools are a common place where the younger generation can develop their understanding of the ocean and acquire the skills needed to become responsible and knowledgeable ocean advocates. Grounded in a relational ocean literacy model, this study examined outcomes of a place‐based programme integrating picture books, beach excursions and ...
Cátia Freitas   +4 more
wiley   +1 more source

A COMPARISON OF SURVIVAL AND GROWTH IN JUVENILE ASTACUS LEPTODACTYLUS (ESCH.) AND PACIFASTACUS LENIUSCULUS (DANA) UNDER CONTROLLED CONDITIONS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
The aim of this study was to compare survival and growth of juvenile narrow-clawed crayfish (Astacus leptodactylus) and signal crayfish (Pacifastacus leniusculus) fed only with experimental pellets (45% of proteins, 6% of fat, 20% crude fibre) under ...
ULIKOWSKI D., KRZYWOSZ T., ŚMIETANA P.
doaj   +1 more source

Heavy metals effects on life traits of juveniles of Procambarus clarkii [PDF]

open access: yes, 2019
An incubation experiment of juvenile crayfish (Procambarus clarkii) following a three- level treatment design approach was performed to assess the effect of different heavy metal concentrations on their life history traits (lifespan, growth, moult and ...
Alcorlo, Paloma   +2 more
core   +1 more source

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