The pattern of species abundances is central to ecology. But direct measurements of
species abundances at ecologically relevant scales are typically unfeasible. This limitation …

With the internet, a massive amount of information on species abundance can be collected
by citizen science programs. However, these data are often difficult to use directly in …

Understanding temporal and spatial variation in distribution and abundance has been, and
will remain, a central goal in amphibian ecology and conservation. Even though these two …

In this chapter we consider the problem of species diversity by focusing firstly on precise
definitions of the termoWe then describe the necessary statistical sampling theory that …

In many situations we are faced with the need to estimate the number of classes in a
population from observed count data: this arises not only in biology, where we are interested …

[Extract] Estimation of population abundance of rare and elusive species critically depends
on the estimation of detection probability under a particular sampling method. If we ignore …

We develop a novel class of measures to quantify sample completeness of a biological
survey. The class of measures is parameterized by an order q≥ 0 to control for sensitivity to …

Reliable and accurate information on animal abundance is fundamental for the conservation
and management of wildlife. Recently, a number of innovative devices (such as camera …

On the basis of the sampling data from an assemblage, estimation of species richness
(observed plus undetected) is statistically difficult especially for highly-diverse assemblages …

Non‐invasive genetic sampling is an increasingly popular approach for investigating the
demographics of natural populations. This has also become a useful tool for managers and …