Species abundance distributions (SADs) follow one of ecology's oldest and most universal
laws–every community shows a hollow curve or hyperbolic shape on a histogram with many …

All biologists who sample natural communities are plagued with the problem of how well a
sample reffects a community's “true” diversity. New genetic techniques have revealed …

Image denoising is a prerequisite for downstream tasks in many fields. Low-dose and
photon-counting computed tomography (CT) denoising can optimize diagnostic …

Long-memory, or more generally fractal, processes are known to play an important role in
many scientific disciplines and applied fields such as physics, geophysics, hydrology …

The classic Jaccard and Sørensen indices of compositional similarity (and other indices that
depend upon the same variables) are notoriously sensitive to sample size, especially for …

No species occurs everywhere. Indeed, the majority are absent from most places, and where
they do occur they are usually quite rare. Gaston discusses the structure of these …

The first photographs of the Earth to be taken from outer space are said to have had a
profound influence on how humanity perceives its place in the Universe. They provided a …

The high alpha-diversity of tropical forests has been amply documented, but beta-diversity—
how species composition changes with distance—has seldom been studied. We present …

There are many ecological diversity measures, but their suitability for use with highly diverse
bacterial communities is unclear and seldom considered. We assessed a range of species …

The absolute diversity of prokaryotes is widely held to be unknown and unknowable at any
scale in any environment. However, it is not necessary to count every species in a …