ECOLOGY/EVOLUTION: Invader Profiling
نویسندگان
چکیده
منابع مشابه
The ailing invader.
T he nature of biological invasions prompts researchers to focus on questions of great importance: How far will a nonnative species go? How fast? And what are the consequences to native species? To crops? To us? This perspective had crystallized long before Charles Elton wrote his classic treatise on the subject in 1958 (1). In it, Elton noted that scientific accounts of invasion have ‘‘a sense...
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We investigate the average time for the earliest particle to hit a spherical absorber when a homogeneous gas of freely diffusing particles with density ρ and diffusivity D is prepared in a deterministic state and is initially separated by a minimum distance l from this absorber. In the high-density limit, this first absorption time scales as l D 1 ln ρl in one dimension; we also obtain the firs...
متن کاملResident-invader Dynamics in Infinite Dimensional Systems
Motivated by evolutionary biology, we study general infinite-dimensional dynamical systems involving two species the resident and the invader. Sufficient conditions for competition exclusion phenomena are given when the two species plays similar strategies. Those conditions are based on invasibility criteria, for instance, evolutionarily stable strategies in the framework of adaptive dynamics. ...
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In this study 50 samples of ecstasy tablets seized in Iran during the period of 2007 through 2008 were examined and their physical characteristics (appearance, marking, scored/not scored, color, weight, diameter, thickness) were determined. In order to determine the chemical characteristics of these tablets, color tests (Marquis test, Simon’s test, Chen’s test and Gallic acid test), Thin Layer ...
متن کاملInvader LNA: efficient targeting of short double stranded DNA.
Despite progress with triplex-forming oligonucleotides or helix-invading peptide nucleic acids (PNAs), there remains a need for probes facilitating sequence-unrestricted targeting of double stranded DNA (dsDNA) at physiologically relevant conditions. Invader LNA probes, i.e., DNA duplexes with "+1 interstrand zipper arrangements" of intercalator-functionalized 2'-amino-alpha-l-LNA monomers, are...
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ژورنال
عنوان ژورنال: Science
سال: 2002
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.297.5580.303d