نتایج جستجو برای: shannon wiener
تعداد نتایج: 17177 فیلتر نتایج به سال:
We carried out a study to characterize fruit fly populations on an organic guava orchard (Psidium guajava cv. Paluma) in the municipality of Una, southern region of the state of Bahia, Brazil, using faunistic analysis of the adult fruit fly specimens captured in McPhail traps from January 2004 through March 2007. A total of 22,673 specimens of Anastrepha (15,306 females and 7,367 males) were ca...
O estudo objetivou avaliar a composição florística, riqueza e diversidade das espécies arbóreas em quintais agroflorestais localizados áreas de várzea pertencentes famílias ribeirinhas. Foram selecionados 15 da Ilha Saracá, localizada no município Limoeiro do Ajuru, Pará. Por meio turnês guiadas foram coletados dados para compor o inventário botânico dos com catalogação contagem indivíduos espé...
Recent experimental and theoretical investigations have made considerable advances in three major areas relating to the structural basis of quantitative cortical microcircuit theory. The first concerns the nature of the cellular units, encompassing the increasingly precise identification and progressively more complete listing of the individual cellular species that constitute the various corti...
This paper addresses the issue of uncertainty in the measurements used in public health analysis and decision-making. The Shannon-Wiener entropy measure was adapted to express the uncertainty contained in counting causes of death in official vital statistics from Chile. Based on the findings, the authors conclude that metrological requirements in public health are as important as the measuremen...
Besov spaces classify signals and images through the Besov norm, which is based on a deterministic smoothness measurement. Recently, we revealed the relationship between the Besov norm and the likelihood of an independent generalized Gaussian wavelet probabilistic model. In this paper, we extend this result by providing an information-theoretic interpretation of the Besov norm as the Shannon co...
Field experiments are described involving nitrogen fertilizer in wheat field to research its effect on microbial quantity and enzyme activity. The results showed that 250 kg N hm applied in wheat field (1) can increase bacteria, fungi, actinomycetes quantity by 39.9%, 56.7% and 70.5% compare to 0 kg N hm. (2) Similarly, the activities of soil urease, catalase and FDA expressed 60.8%, 18.3% and ...
Long-term and excessive application of chlorimuron-ethyl has led to a series of environmental problems. Strain Hansschlegelia sp. CHL1, a highly efficient chlorimuron-ethyl degrading bacterium isolated in our previous study, was employed in the current soil bioremediation study. The residues of chlorimuron-ethyl in soils were detected, and the changes of soil microbial communities were investig...
The seasonal variation of fish species composition and abundance in gillnet catches (14-90 mm knot-to-knot) from the Greek part of the transboundary Lake Doirani was studied during the period 2006-2007. A total of 8,419 specimens weighing 182.3 kg and belonging to 9 species were caught. Catch composition differed with season. Thus, Rhodeus meridionalis dominated in terms of NPUE the spring, Per...
The Lepidoptera family Saturniidae is commonly utilized as a bioindicator for ecosystem monitoring. During six years of sampling, the study explored dynamics Shannon-Wiener, Simpson, species richness, Pielou equity, dominance, and abundance ecological parameters under effect seasonality. research took place in Atlantic Forest remnants at Vale Natural Reserve Linhares, Espirito Santo, Brazil. Bl...
Kelurahan Tubuhue merupakan suatu yang terletak di Kabupaten Timor Tengah Utara dengan areal persawahan luas. Kawasan luas ini, dijadikan sebagai lokasi penelitian untuk mengetahui tingkat persebaran dan peranan serangga entomofagus biological control agroekosistem tersebut. Manfaat nilai bagi kehidupan mendorong manusia menjaga kelestarian keanekaragamannya, namun diduga keseimbangan ekosistem...
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