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Comment on "Optimal Control for a Dispersing Biological Agent"
Journal of Agricultural and Resource Economics, 2015 openaire +1 more source
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Environmental gradients mediate dispersal evolution during biological invasions
Ecology Letters, 2023AbstractRapid dispersal evolution at the edge of a range expansion can accelerate invasions. However, expanding populations will often encounter environmental gradients that entail a fitness cost of dispersal. We used an eco-evolutionary model to explore how environmental heterogeneity influences adaptation and dispersal evolution during range ...
John W. Benning +3 more
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Biological response to dissolved versus dispersed oil
Marine Pollution Bulletin, 2020The water-soluble compounds of oil (e.g. low molecular weight PAHs) dissolve as a function of their physicochemical properties and environmental conditions, while the non-soluble compounds exist as dispersed droplets. Both the chemical and physical form of oil will affect the biological response.
Gopal, Bera +9 more
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Resource‐Dependent Dispersal and the Speed of Biological Invasions
American Naturalist, 2006Many mobile organisms exhibit resource-dependent movement in which movement rates adjust to changes in local resource densities through changes in either the probability of moving or the distance moved. Such changes may have important consequences for invasions because reductions in resources behind an invasion front may cause higher dispersal while ...
Greg Dwyer
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Models of dispersal in biological systems
Journal of Mathematical Biology, 1988In order to provide a general framework within which the dispersal of cells or organisms can be studied, we introduce two stochastic processes that model the major modes of dispersal that are observed in nature. In the first type of movement, which we call the position jump or kangaroo process, the process comprises a sequence of alternating pauses and
Othmer, Hans G., Dunbar, S. R., Alt, W.
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Dispersion of nanoparticles in media of biological interest
MRS Proceedings, 2011ABSTRACTNanoparticles (NP) are introduced in a growing number of commercial products, including food and beverage, daily use hygiene products such as toothpaste, or orally-administered drugs. To study the possible toxicity of these nanoparticles, a model system is the in vitro response of eukaryotic cells to the presence of NP.
Carriere, M. +2 more
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Long range dispersal and spatial pattern formation in biological invasions
Mathematical Biosciences, 2006In this paper we explore the consequences of long distance dispersal in biological invasion processes through simulations using a recently developed cellular automaton model. We show that long distance dispersal generate characteristic spatial patterns with several stationary scale-invariant properties.
Sergio A Cannas, Marcelo A Montemurro
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Gold nanoparticles: dispersibility in biological media and cell-biological effect
Journal of Materials Chemistry, 2010Spherical gold nanoparticles with a hydrodynamic diameter between 25 and 37 nm were prepared and stabilised with poly(N-vinylpyrrolidone) (PVP) or tris(sodium-m-sulfonatophenyl)phosphine (TPPTS). They were subjected to different cell culture media, e.g.
Mahl, Dirk +4 more
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Dispersion modelling for biological threat
2015 12th International Bhurban Conference on Applied Sciences and Technology (IBCAST), 2015Accidental release scenario related to chemical can be simulated through different software application available in market. CHARM ® is one of the software applications which handle movement of airborne particles in complex terrain. The aim of this paper is to explain how dispersion for Biological threat can be achieved by using same software package ...
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