Biological invasion is a widespread, but poorly understood phenomenon. Elton’s hypothesis, supported by theory, experiment, and anecdotal evidence, suggests that an important determinant of invasion success is resident biodiversity, arguing that high diversity increases the competitive environment of communities and makes them more difficult to invade. Observational studies of plant invasions, ...

Provision of free, universal access to biodiversity information is a practical imperative for the international conservation community — this goal should be accomplished by promotion of the Public Domain and by development of a sustainable Biodiversity Information Commons adapting emergent legal and technical mechanisms to provide a free, secure and persistent environment for access to and use ...

Access to and sharing of data is essential for biodiversity conservation. However, workers from developing nations that harbor rich biodiversity often do not have access to biodiversity information and often are not keen on making what data they have accessible to others. Open access initiatives offer a great opportunity to make the world’s biodiversity information accessible to anyone, at any ...

Based on the local Shannon entropy concept in information theory, a new measure of aromaticity is introduced. This index, which describes the probability of electronic charge distribution between atoms in a given ring, is called Shannon aromaticity (SA). Using B3LYP method and different basis sets (6-31G**, 6-31+G** and 6-311++G**), the SA values of some five-membered heterocycles, C(4)H(4)X, a...

Biodiversity has a great importance on agroecosystems, since it determines their actual and potential productivity. Bees provide crucial ecological service in the agricultural landscape most geographical regions because they are considered to be predominant economically important group of pollinators. The objective study was assessment bees (domestic, wild, bumblebees) diversity different types...

Biodiversity at the species and individual levels is one of fundamental elements characterizing an ecosystem. It assumed that greater level biodiversity, more tolerant environment to changes in external conditions. In recent years, dynamic climate change has negatively impacted health many forest trees across Europe, particular Scots pine. Tree commonly characterized by crown defoliation. The s...

Shannon wavelets are used to define a method for the solution of integrodifferential equations. This method is based on 1 the Galerking method, 2 the Shannon wavelet representation, 3 the decorrelation of the generalized Shannon sampling theorem, and 4 the definition of connection coefficients. The Shannon sampling theorem is considered in a more general approach suitable for analysing function...

Abstract One of nature’s most valuable resources, biodiversity plays a critical role in meeting many human requirements and protecting from environmental extremism conditions. Mollusca benthic invertebrates are important biota aquatic ecosystems need further investigation. The current study highlights some species recorded Al-Delmage Marsh Iraq. points out six Mollusca. These Melanoides tubercu...

Image Segmentation plays an important role in medical field that enable professionals to detect their patient’s problems and help them to get proper diagnosed. In this article, an entropy based approach for image segmentation is discussed to highlight tumor in MRI images. Magnetic Resonance Imaging (MRI) is an imaging, in which pixel values are based on radiation absorption. In the proposed app...