The species abundance distribution (SAD) is an important concept in ecology, and much
work has focused on the SAD in a theoretical context. However, less focus has been placed …

The general dynamic model of oceanic island biogeography (GDM) has added a new
dimension to theoretical island biogeography in recognizing that geological processes are …

A dramatic insect decline has been documented on the grasslands and forests of European
or North American mainland. Yet, other parts of the world and other ecosystems remain …

Inadequate sampling can cause biased estimates of species diversity, as species
occurrence generally follows a log-normal distribution with a long tail. Understanding this …

Habitat islands can be defined as distinct patches of habitat surrounded by less contrasting
matrix types. In contrast to true island biogeography (traditionally the study of islands …

A species abundance distribution (SAD) characterises patterns in the commonness and
rarity of all species within an ecological community. As such, the SAD provides the …

While monitoring is essential for effective conservation, obtaining occurrence data is often
challenging, time consuming and expensive. The Brazilian Atlantic Forest has a high …

Aim Statistical and ecological mechanisms shape species abundance distributions (SADs).
A lack of correlation between ecological gradients and SAD shape would suggest that SADs …

Ecological data sets often record the abundance of species, together with a set of
explanatory variables. Multivariate statistical methods are optimal to analyze such data and …

Abstract We examine whether Species Abundance Distribution models (SADs) and diversity
indices can describe how species colonization status influences species community …